CN106888070A - The method and apparatus for being conversated in cordless communication network and being decoded - Google Patents
The method and apparatus for being conversated in cordless communication network and being decoded Download PDFInfo
- Publication number
- CN106888070A CN106888070A CN201510939148.6A CN201510939148A CN106888070A CN 106888070 A CN106888070 A CN 106888070A CN 201510939148 A CN201510939148 A CN 201510939148A CN 106888070 A CN106888070 A CN 106888070A
- Authority
- CN
- China
- Prior art keywords
- message
- bit
- network equipment
- predictable
- configuration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004891 communication Methods 0.000 title claims abstract description 29
- 230000003068 static effect Effects 0.000 abstract description 39
- 230000008569 process Effects 0.000 abstract description 11
- 230000008859 change Effects 0.000 description 10
- 230000011664 signaling Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000007476 Maximum Likelihood Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of method and apparatus the present invention relates to conversating and decoding in cordless communication network.Wherein, the process that message is parsed in first network equipment includes：Based on configuration, the relevant information of each message of the session between precognition and second network equipment；Receive second network equipment according to predefined procedure send described in each message, wherein, each message contains at least one static bit；Predict at least one static bit in the message；Based at least one static bit for predicting, the remainder to corresponding message is decoded.By implementing method, device and the network equipment that the present invention is provided, the parsing of message can more effectively and be exactly carried out, more adapt to following growth requirement of M2M networks, the influence to existing standard, the network architecture is small, and application cost is low.
Description
Technical field
Enter row decoding to wireless signal the present invention relates to cordless communication network, more particularly to the method and apparatus for entering row decoding to wireless signal based on estimating, and the equipment including the device.
Background technology
LTE (Long Term Evolution, Long Term Evolution) it is by 3GPP (The 3rd Generation Partnership Project, third generation partner program) Long Term Evolution of UMTS (Universal Mobile Telecommunications System, conventional wireless communication systems) technical standard organized to set up.LTE system introduces OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and MIMO (Multi-Input＆Multi-Output, multiple-input and multiple-output) etc. key technology, significantly increase spectrum efficiency and message transmission rate, and support that various bandwidth is distributed and global main flow 2G/3G frequency ranges and some newly-increased frequency ranges, thus more flexibly, power system capacity and covering are also obviously improved for frequency spectrum distribution.
LTE-A (LTE-Advanced) is the evolution version of LTE, there is preferable backwards compatibility to LTE.LTE-A employs the key technologies such as carrier aggregation, coordinated multipoint transmission, relaying, the enhancing of heterogeneous network interference coordination, peak data rate, peaks spectrum efficiency, cell mean spectral efficiency and the cell boundary users performance of wireless communication system can be greatly improved, the networking efficiency of whole network can be also improved simultaneously, and this causes that lte-a system turns into the main flow of Development of Wireless Communications in recent years.
Especially in the development of LTE-A network, the communication technology of Machine To Machine (M2M) constantly manufactures the focus for attracting people's attention.Although M2M solutions have existed for more than 20 years, wireless network development in recent years still causes that the relation of enterprise, personal user and M2M occurs revolutionary change.By 2017, estimation will have 700,000,000 multi-sections to be based on cellular M2M equipment/system, M2M is turned into a big main flow.Cost with component constantly declines, and the use of smart mobile phone is in rising trend, and this also supports the growth of M2M applications.And becoming increasingly popular for LTE-A, it is that more data-intensive solutions have opened wide gate.In the near future, All Around The World perhaps can be interconnected fully.Or even it has been reported that, LTE-A is turning into the prerequisite of any new M2M solutions.
But, many wireless terminals for being used for M2M are all only furnished with the base band of the relatively low amplifier of individual antenna, power and simplification, and only transmit small packet (packet).The spectrum efficiency of these terminals is more much lower than desired value (for example, several decibels lower than ordinary terminal are even more more).If future will in the wireless network dispose more this Terminal Type without giving improvement, the population size of network will be significantly dragged down, have a strong impact on the income of operator.The existing wireless terminal for supporting M2M also there is a problem that being unable to properly receive and parsing the wireless signal for receiving often, severely impact the handling capacity and Consumer's Experience of network.
Therefore, it should which a solution is provided, it is desirable to be able to improve the performance of similar wireless terminal.
The content of the invention
Hereinafter, each specific embodiment of the invention will be introduced by taking the wireless terminal for realizing M2M of LTE or LTE-A network as an example, but, its purport and thought can be applied to other applicable terminal, the network equipment and systems by those skilled in the art by reading the application without creative work.
By various embodiments of the present invention, desirable to provide a kind of new solution, even if so that the hardware condition of user equipment is limited (for example, the configuration of foregoing single antenna, low power amplifier and simplified base band), they are remained to each other, or carry out more efficiently communicating between miscellaneous equipment (for example, base station of network side etc.), improve the availability of frequency spectrum and be properly received the ability with parsing wireless signal.
The present inventor takes the lead in recognizing that this class wireless terminal has an interesting characteristic, i.e. their communication behavior has very strong stationarity.For example, this kind equipment is often only a kind of to apply (i.e. application target is more single), then behavior during their each runs is all identical, for example, send same class data.Thus, it is possible to reasonably assume that network can be processed in the same way, or requirement is processed in the same way.Everything causes that the data that this Terminal Type transmitted and/or signaling are relatively fixed, and becomes to predict.This and the communication between our common person to persons (human to human) are completely different, because interpersonal voice, video or text communication can with the mood of people, daily in period, even change other more secondary factors, prediction of having no way of.Inventor herein proposes, and above-mentioned predictability is perhaps favorably improved the performance of this Terminal Type, and by its equipment complexity need not be increased.
One can be by the example of the advantage of above-mentioned predictability wireless signal of the equipment (for example, foregoing wireless terminal) to receiving decoding (decoding).According to the observation of inventor, a part (some bits) for signaling be it is static/fixed (for example, it is always " 1 " for " 0 " or always), then, can be considered as these bits known foreseeable in other words by equipment, and these bits can be used for the improvement and optimization of decoding process.Embodiments in accordance with the present invention, these static bits can include the following at least one (skilled artisan understands that, according to different communication protocol and packet infrastructure, these static bits can not include one or more in the following, or additionally comprise others one or more, and these are realized within the scope of the restriction of appended claims)：
Reserved in the packet header of packet and/or the bit for filling (padding)
For example, in the MAC layer packet header of LTE, the bit for having 25% is reserved, and this is identical typically to the byte number in packet header.Occupy major part in whole packet sometimes in view of packet header, it should be carried out described in context further with.
For the Spare bit position for further expanding
For example, in the MIB (Master Information Block, Master Information Block) of LTE, 56% bit is standby.Additionally, also having some foreseeable bits, such as SFN (System Frame Number, System Frame Number) of increased each frame in MIB.If the bit for currently representing SFN is 000011, in next frame, SFN will be 000100.
Some relatively fixed configuration informations in message
For example, in RRC (the Radio Resource Control of LTE, wireless heterogeneous networks) reconfigure message, for a special user equipment, base station is likely to use identical PDCP (PDCPs, Packet Data Convergence Protocol) and RLC (wireless spread-spectrum technology, Radio Link Control) parameter, this will bring 76% static bit.
Some high-rise data or message
Some (report) data can include constant bit.For example, the IP address of server is usually constant, then from or be sent to the server packet in, the bit shared by service IP address can be considered as the bit of static state.
Herein, for the ease of understanding and vividly describing embodiments of the invention, the information that equipment room is transmitted also is referred to as message, a packet can include one or more message, and a message can also be decoupled in multiple packets.
Why above-mentioned static bit can be what is be used, Another reason is, the communication behavior of this Terminal Type is relatively fixed/static state, its typical performance is, recipient often knows that the message of next arrival is which kind of message (namely message size), its size is how many, etc..This static transport behavior mode so that the static or predictable bit in message can be used to optimize decoding process.
Based on above-mentioned leading understanding, one or more embodiments of the invention, it is desirable to be able to provide a kind of new method and apparatus for being used for signal transacting in the wireless network, it is desirable to which the method and device can realize following purpose：
1. the behavior of pre- measurement equipment；
2. decoding performance is improved using the information for predicting.
Therefore, according to the specific embodiment of first aspect disclosed by the invention, there is provided the method for being used to parse the message from second network equipment in a kind of first network equipment of cordless communication network, including：A. based on configuration, the relevant information of each message of the session between precognition and second network equipment；B. receive second network equipment according to predefined procedure send described in each message, wherein, each message contains at least one static bit；C. at least one static bit in the message is predicted；D. based at least one static bit for predicting, the remainder to corresponding message is decoded.
One according to first aspect more specifically embodiment, wherein, at least one static bit includes at least one in the following：- the reserved or bit for filling；- for further expand Spare bit position；- the configuration information relatively fixed；Or the data or information of high level.
According to the specific embodiment of second aspect disclosed by the invention, there is provided a kind of to be used to carry out the method with the session between first network equipment in second network equipment of cordless communication network, including：A. based on configuration, the relevant information of each message in precognition session；B. based on configuration, in a predetermined sequence described each message is sent to the first network equipment, wherein, each message contains at least one static bit, and at least one static bit is used at the first network equipment decoding to message carried out based on prediction.
According to the third aspect disclosed by the invention, there is provided a kind of device for being used to parse the message from second network equipment in the first network equipment of cordless communication network, including：First precognition unit, is configured to configuration, the relevant information of each message of the session between precognition and second network equipment；Receiving unit, be configured to receive second network equipment according to predefined procedure send described in each message, wherein, each message contains at least one static bit；The first precognition unit is additionally configured to, and predicts at least one static bit in the message；Described device also includes：Decoding unit, is configured at least one static bit for being predicted, and the remainder to corresponding message is decoded.
Further, at least one static bit includes at least one in the following：- the reserved or bit for filling；- for further expand Spare bit position；- the configuration information relatively fixed；Or the data or information of-high level.
According to fourth aspect disclosed by the invention, there is provided a kind of to be used to carry out the device with the session between first network equipment in second network equipment of cordless communication network, including：Second precognition unit, is configured to, based on configuration, the relevant information of each message in precognition session；Transmitting element, configuration is configured to, described each message is sent to the first network equipment in a predetermined sequence, wherein, each message contains at least one static bit, and at least one static bit is used at the first network equipment decoding to message carried out based on prediction.
According to the disclosed by the invention 5th aspect, there is provided a kind of network equipment, wherein comprising the device in foregoing three aspects.
According to the disclosed by the invention 6th aspect, there is provided a kind of network equipment, wherein comprising the device in foregoing fourth aspect.
By implementing method, device and the network equipment that the present invention is provided, the parsing of message can more effectively and be exactly carried out, more adapt to following growth requirement of M2M networks, the influence to existing standard, the network architecture is small, and application cost is low.
Brief description of the drawings
In order to describe to obtain the method, device, network/user equipment of foregoing and other advantages of the present invention and feature, diagram that will be in below with reference to specific embodiment and accompanying drawing carries out more literary detailed description to the various aspects being briefly described above.It should be appreciated that the simply exemplary embodiments of the invention described by these pictures, therefore it is not considered as limiting the scope of the present invention.
Fig. 1 is the simplified diagram of the applicable cordless communication network of the present invention；
Fig. 2 shows that embodiments in accordance with the present invention carry out the method flow diagram for sending and receiving of message in network shown in Fig. 1；
Fig. 3 shows the device block diagram that embodiments in accordance with the present invention conversate in network shown in Fig. 1；
Fig. 4 shows the grid schematic diagram based on convolutional code according to an embodiment of the invention.
In figure, same or analogous reference represents identical or corresponding part or step.
Specific embodiment
Each embodiment of the invention is described in detail below in conjunction with accompanying drawing.
It is related to reduce the discussion of signaling consumption in 3GPP and some documents.What this can be achieved on.But, it will be appreciated by those skilled in the art that network design should be pursued services all of terminal with same signaling system as far as possible, or, the quantity of the signaling system for reducing different that should at least try one's best, either for the communication of person to person, or M2M communication, is not always the case.This is primarily due to, and Signalling Designing and uniformity test are had to by standardization effort, increased cost and complexity.
Although foregoing and/or other static bits (being hereinafter also referred to as " static bit " or " fixed bit ") are not perhaps best from for the angle for reducing signaling consumption, for these reasons, can not simply be removed.
Sometimes, some terminals perhaps really take less than some static bits, and these static bits are strictly then redundancy for these terminals, bring signaling consumption higher.But, still blindly these static bits can not be removed, this is primarily due to transmitting terminal cannot confirm which static bit can really be removed, and (for example, not sending) some static bits are removed from message, and signaling can or can not be caused imperfect.Additionally, in order to omit the packet header of packet or the static bit of other positions, the system complexity of transmitting terminal may be increased, thereby increases and it is possible to receiving terminal can be caused unpredictable reception mistake occur.
Next, introducing a kind of prediction communication equipment behavior, and the solution decoded based on foregoing static bit with reference to accompanying drawing.The advantage of these and other embodiment of the invention may is that, it is minimum for standardized influence, in other words, the cost or expense that be applied to the network system being molded are less, and this is undoubtedly highly beneficial for Virtual network operator and equipment supplier.
It is the prediction of foregoing equipment behavior that key idea disclosed by the invention is, and the prediction of static bit provides total solution.It is its relatively low complexity that above-mentioned prediction is used for one of advantage of decoding of message, it is after demodulation deinterleaves (deinterleaving) that this is primarily due to decoding, prediction can be based on the information unit of higher, and the bit of non-primary.
In at least one embodiment disclosed by the invention, there is provided a kind of mechanism, the identical transmission for ensureing message in transmitting terminal sequentially, and message content uniformity, and in receiving terminal, static bit in transmission order and message carries out the decoding of message.
By taking the reception process of the message that the base station 1 shown in Fig. 1 sends to user equipment 2 (a kind of terminal) through downlink as an example.First, in step S20, due to configuration before, user equipment 2 and base station 1 can predict them between session each step in message name (also determining the type of message) and content, according to an example, similar message can have identical size.Then, the algorithm of acquiescence that terminal 2 and base station 1 define and use, and identical algorithm is used in the different step of session, although this requirement not necessarily, be probably it is favourable, for example, it is possible to reduce the change/difference between different sessions.Additionally, communication other side (base station 1 in terminal 2, or terminal 2 in base station 1) will be with foreseeable transport behavior (pattern), for example, which kind of message what recipient anticipated that the message of next arrival is.Above-mentioned being pre-configured with may be the need for sending and receiving both sides introduce and bring storage, for example, the information such as the step of base station 1 and each user equipment are corresponded for different conversation procedure storages in advance and corresponding type of message, including but not limited to, the corresponding type of message of each step, the sequencing of each message, the size of each message, message format, then, when base station 1 and certain user equipment establish a session, both sides can just search according to the type of session and determine the information such as corresponding step flow and related above-mentioned type of message.Thus, the type of message and sequencing in session have been accomplished to predict for communicating pair.
The step of 1 side of base station in S21, the information such as each step and type of message of the session that base station 1 will can predict, storage is in the core network, or notify to one or more neighbouring base stations (Fig. 1 is not shown), so as to be moved in user equipment and/or link degradation between mobile device and base station 1 and when triggering cell gravity treatment (cell reselection) or handing-over (hand over), other base stations can obtain above- mentioned information to continue the session with the user equipment.
In end side, user equipment 1 remembers PLMN (Public Land Mobile Network), and can when PLMN changes flush buffers.In one example, such information can be exchanged between different PLMN.Then, base station can directly apply the prediction corresponding with the mobile terminal, the including but not limited to content of the type of message corresponding to each step of the session of the mobile terminal, step and each message when the mark of certain terminal is detected.
In order to ensure the predictability of message content, message is completed one by one for prediction process afterwards.If the size of message is different with expected message size, recipient's such as user equipment 2 will be attempted predicting the information unit in message.Then, the structure of the parsing of user equipment 2 message and other message contents.Specific flow is as described below.
In step S22, base station 1 to user equipment 2 send message, wherein, preferably avoid transmitting multiple message in a transmission block as the base station 1 of sender, or using fixed mode come by multiple message reuses in a transmission block, to help the prediction of recipient.
In step S23, the static bit in the prediction message of user equipment 2.According to an example, first, user equipment 2 checks the specification version (specification version) of the reserved bit position in the packet header of message and the bit for filling, this prediction has confidence (confidence level, reliability in other words) higher, therefore user equipment 2 can be characterized with LLR (log-likelihood ratio) values higher.If version there occurs change, if the related content of specification does not change, these bits are still what can be predicted.Then, the message sent can carry the information of specification version or represent the identification information that whether the more previous session of specification changes.For the bit filled typically can with reset, so, specify these bits to will be helpful to the prediction of message in a standard.
Then, the Spare bit position in message can be processed with the mode for the treatment of reserved bit position.Remaining quasistatic bit can be predicted based on algorithm.In the MIB message of LTE SFN numbering be also foreseeable because it is gradually incremented by between consecutive frame, if that is, the bit of present frame be 000011, will be in the next frame 000100.Recipient can also in scope interior prediction these bits, but, it is usually to fall in a less set, therefore, some of them bit is changeless.Sender can set all reserved bits position of message using identical algorithm, for example, whole resets or whole sets.Because final implementation is determined, specific algorithm can not specify in a standard.But, regulation algorithm perhaps can be favourable in a standard.As long as these bits are not randomly to change, recipient can just complete prediction.Reserved bit depends on the version of specification, and what the version of specification often infrequently changed.
Additionally, for the configuration information in message, as it was previously stated, many configuration informations are to be relatively fixed, will not change.Recipient, such as user equipment 2, can statistically calculate the possibility that this time information unit changes based on previous transmission.The possibility can be further converted to LLR value, used as the input of decoding.This is also applied for the data of high level, for example, the prediction of the IP address of server.
By the description of above-mentioned step S23, recipient may decide that whether the message can be prediction, and determine the evil LLR value of each bit of decoding message.
In order to apply foregoing prediction, according to one embodiment, above-mentioned possibility can be converted to LLR value, in another embodiment, recipient can be that the bit of prediction defines M confidence/reliability (Confidence) grade.For example, reserved bit position is defined by standard, therefore they have highest confidence level (the consistent possibility of predicted value actual value is maximum).Some information elements determine according to statistics, then can be endowed relatively low confidence level by contrast.According to an example, the bit with highest confidence level determined in step S23 will then be used for subsequent treatment for the bit of the decoding in step S24, relatively low confidence level.Certainly, those skilled in the art can expand out some change case without creative work according to practical application scene, for example, the bit gone out based on statistical forecast is also used for into step S24, these change case are also fallen within the protection domain of appended claims.
Example of the invention, recipient can inform that recipient can support above-mentioned forecast function to sender.
Below to step S24 in the decoding with the bit for predicting to carry out message introduced.
In one example, convolutional code (convolutional coding) is used.Recipient is decoded using viterbi algorithm (Viterbi algorithm), the bit and its confidence level wherein predicted are used for State Transferring (State Transition), and confidence level is converted into LLR value and is input in decoding process as precedence information.Number of path within a grid is reduced based on LLR information, because in decoding process, in the step of each selects path, the path of low probability will be deleted.
In another example, use Golay code (Golay code).Recipient can use maximum likelihood (Maximum Likelihood, ML) decode, the bit and confidence level wherein predicted be used to calculate total LLR (Sum LLR) value, and the maximum quantization LLR value of highest confidence level correspondence, the relatively low LLR absolute values of relatively low confidence level correspondence.The possibility (Likelihood) of any code word is sued for peace by the LLR value of the code word and obtained.The bit of prediction can be conducive to improving the overall LLR value of code word.
Recipient can attempt various decoding processes, if for example, CRC (Cyclical Redundancy Check) display decoding failures, recipient can attempt traditional decoding process.This can't increase complexity, because usual BLER (Block Error Rate, block error rate) it is less than 10%, and this error rate can be reduced to an extremely low level by the present invention, then need to use the probability of various decoding processes can be very low, thus as a kind of alternative.
Method according to embodiment disclosed by the invention is particularly useful to antiburst error (Burst Error), therefore, it is that static bit is distributed in packet that sender will can have compared with high likelihood.This needs the support of standard.First, sender is based on statistical information and which bit is Heuristics estimate compared with being probably static state, for example, bit on radio configuration with mark (for example, service identification, Transaction ID) bit compare, it is static to have possibility higher.Recipient is also apprised of or is configured in above-mentioned distribution, so that recipient can correctly solve corresponding packet.
Recipient can set one or more threshold values, it is determined that can the use priority information when the bit of many small numbers is identical with desired value.
In the present example it is assumed that the information size for needing decoding is n-bit, decoding unit/decoder exports the n code word of bit, and wherein recipient can predict m bit, and remaining then needs to be decoded based on the bit for predicting.Assess the decoding performance under this mode below.
Performance can be evaluated using Shannon sphere-packing bound (Shannon ' s Sphere Packing Bound), and the code word of wherein n-bit is that a n being syncopated as by ball ties up circular cone.K ball is had in space.Performance is decided by peacekeeping solid angle (Solid Angle).The solid angle of circular cone increases with the length of code word.If the m bit of prediction, then the quantity of ball is reduced to k-m in space.So, increased the information that recipient is possessed.The error rate of code word is by formula [1] Suo Shi：
Pw≥Qn(θs, A) and [1]
In formula [1], A is the root of the Eb/No of channel, and θ represents the part isometric angle in the n dimension circular cones of half angle θ.This is to shift onto out from vionoli Space Theories.Qn(θs；A it is) that an intermediate value is (A；0；…；0) probability that n dimension Gaussian random vectors fall outside the n dimension circular cones of half angle θ.θsIt is the angle for meeting following condition：Half angle θsN dimension circular cone surround Euclidean n-space total solid angle 1/M (M/mono-).It is unit that the radius of the ball is normalized, and then the angle can be 1/M.Ω is to calculate the function of solid angle from half-angle, such as shown in formula [2]：
Wherein, M=2k, and：
And QnAs shown in formula [4]：
For above-mentioned formula, it is seen then that by predicting m bit, part isometric angle is not changed in, and is 1/M, wherein the probability of mistake is less than M higher, therefore this is the extra gain of this programme.And total ball (Sphere) number is reduced to k-m.
We further come to analyze above-mentioned algorithm based on convolutional code and Golay code.
In convolutional code, decoding grid is as shown in figure 4, this is also a kind of the simplest convolutional code used in document.In decoding process, the bit of prediction is used as input to determine login state (register state), it is determined that the login state alternative path that will determine selected in decoding.As illustrated, there is two registrations and with four states, the input of one of bit can halve the state of registration, and alternative path is also reduced to two.So, generally, the quantity in path is reduced as input bit number is constantly entered into registration, so shown in the path such as formula [5] reduced：
Rx2(k-m) [5]
Wherein, R is the quantity of registration.From formula [5] as can be seen that the uncertainty of decoding is reduced with the reduction of alternative path, and the uncertain reduction for reducing the respective degrees for also bringing BER.It should be appreciated that its gain depends on the quantity of registration, registration is more, and the decoded gain for bringing is higher.
The performance of decoding can be then analyzed by emulating, and find that performance increases with the bit number of prediction by the emulation of inventor.If 1/8th of prediction full detail, have a gain of about 1dB, and predict full detail two/first can have the gain of about 3.5dB.We also compare such scheme and a reference scheme, wherein, code word is first decoded the corresponding bits obtained by then with the bit of prediction replacing decoding again, compares discovery, scheme in the embodiment of the present invention is better than the reference scheme, BER by contrast it is low about half.
This programme is assessed based on Golay code, because Golay code is linear block code, close to optimization for small block of information.Research finds that its performance can be assessed by formula [6]：
Wherein, ρ and λ is the inspection node (check node) of inspection matrix (check matrix) and the number of degrees (degree) of change node (variable node).R is equivalent code rate.From equation [6], after the bit of prediction is considered, code rate increases, and with equivalent code rate, BER limitations (Bound) can be calculated according to classical Shannon's theorems.
Simulation result shows, satisfactory if the information of prediction 1/2nd, can obtain the gain of 5dB or so.
As can be seen here, the present invention discloses the scheme for providing and can obtain considerable gain, is suitable to small data transmission, is particularly suited for the M2M communication in future.
Fig. 3 shows the device block diagram that embodiments in accordance with the present invention conversate in network shown in Fig. 1.Wherein, user equipment 2 of the first network equipment for example shown in Fig. 1, base station 1 of second network equipment for example shown in Fig. 1, user equipment 2 includes the first device for parsing the message from second network equipment, and base station 1 includes being used to carry out the second device with the session between first network equipment in second network equipment.It will be appreciated by those skilled in the art that a network equipment can both send message, message is also received, then, this these or other embodiments of the invention, a network equipment can both include above-mentioned first device or including second device.The function introduction of each module shown in Fig. 3 is as follows：
There is the first precognition unit 30 in first device, configuration, the relevant information of each message of the session between precognition and second network equipment such as base station 1, corresponding to abovementioned steps S20 is configured to.
Receiving unit 31, is configured to receive each message that base station 1 is sent according to predefined procedure, wherein, each message contains at least one predictable bit, corresponding to abovementioned steps S22.
First precognition unit 30 is additionally configured to, and described at least one predictable bit in the message is predicted, corresponding to abovementioned steps S23.
The first device also includes：
Decoding unit 32, is configured to the described at least one predictable bit for being predicted, and the remainder to corresponding message is decoded, corresponding to abovementioned steps S24.
Correspondingly, second device includes the second precognition unit 33 and transmitting element 34.Wherein, the second precognition unit 33 is configured to the relevant information of each message in configuration precognition session, corresponding to abovementioned steps S20.
Transmitting element 34, it is configured to configuration and sends described each message to the first network equipment in a predetermined sequence, wherein, each message contains at least one predictable bit, and at least one predictable bit is used at the first network equipment decoding to message carried out based on prediction.The operation of transmitting element 34 corresponds to abovementioned steps S22.
It can be the mobile terminals such as base station or mobile phone that the present invention discloses described first network equipment, and second network equipment can also be the mobile terminals such as base station or mobile phone, and a base station or mobile terminal can simultaneously include the described device for sending and receiving message.
In several embodiments provided by the present invention, it should be understood that disclosed system and method, can realize by another way.For example, system embodiment described above is only schematical, for example, the division of each functional unit, can be only division of logic function, there can be other dividing mode when actually realizing.
The unit that is illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, or unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. should be included within the scope of protection of the invention.
Claims (12)
1. it is used to parse from second network equipment in a kind of first network equipment of cordless communication network
The method of message, including：
A. based on configuration, letter related to each message of the session between second network equipment is predicted
Breath；
B. receive second network equipment according to predefined procedure send described in each message, wherein, often
Individual message contains at least one predictable bit；
C. described at least one predictable bit in the message is predicted；
D. based on the Boot position for predicting, the remainder to corresponding message is decoded.
2. method according to claim 1, wherein, at least one predictable bit bag
Include at least one in the following：
- the reserved or bit for filling；
- for further expand Spare bit position；
- the configuration information relatively fixed；Or
The data or information of-high level.
3. method according to claim 1, wherein, the step c includes：
Determine the confidence level of predicted bit；
The step d includes：
The bit of the prediction with confidence level higher is used for the decoding.
4. it is a kind of to be used to carry out between first network equipment in second network equipment of cordless communication network
Session method, including：
A. based on configuration, the relevant information of each message in precognition session；
B. based on configuration, described each message is sent to the first network equipment in a predetermined sequence,
Wherein, each message contains at least one predictable bit, at least one predictable bit
Position is used at the first network equipment decoding to message carried out based on prediction.
5. method according to claim 4, wherein, at least one predictable bit bag
Include at least one in the following：
- the reserved or bit for filling；
- for further expand Spare bit position；
- the configuration information relatively fixed；Or
The data or information of-high level.
6. it is a kind of to be used to parse from second network equipment in the first network equipment of cordless communication network
The first device of message, including：
First precognition unit, is configured to configuration, the session between precognition and second network equipment
Each message relevant information；
Receiving unit, be configured to receive second network equipment according to predefined procedure send described in each
Message, wherein, each message contains at least one predictable bit；
The first precognition unit is additionally configured to, and described at least one in the prediction message is predictable
Bit；
The first device also includes：
Decoding unit, is configured to the described at least one predictable bit for being predicted, to phase
The remainder of message is answered to be decoded.
7. first device according to claim 6, wherein, at least one predictable bit
Position includes at least one in the following：
- the reserved or bit for filling；
- for further expand Spare bit position；
- the configuration information relatively fixed；Or
The data or information of-high level.
8. first device according to claim 6, wherein, the first precognition unit is additionally configured to,
Determine the confidence level of predicted bit；
The decoding unit is additionally configured to, and the bit of the prediction with confidence level higher is used for described
Decoding.
9. it is a kind of to be used to carry out between first network equipment in second network equipment of cordless communication network
Session second device, including：
Second precognition unit, is configured to, based on configuration, the relevant information of each message in precognition session；
Transmitting element, is configured to configuration, is sent to the first network equipment in a predetermined sequence
Described each message, wherein, each message contains at least one predictable bit, described at least one
Individual predictable bit is used at the first network equipment solution to message carried out based on prediction
Code.
10. second device according to claim 9, wherein, at least one predictable ratio
Special position includes at least one in the following：
- the reserved or bit for filling；
- for further expand Spare bit position；
- the configuration information relatively fixed；Or
The data or information of-high level.
First network equipment in a kind of 11. cordless communication networks, wherein, including in claim 6-8
First device described in any one.
Second network equipment in a kind of 12. cordless communication networks, wherein, including claim 9 or 10
Described second device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939148.6A CN106888070A (en) | 2015-12-15 | 2015-12-15 | The method and apparatus for being conversated in cordless communication network and being decoded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939148.6A CN106888070A (en) | 2015-12-15 | 2015-12-15 | The method and apparatus for being conversated in cordless communication network and being decoded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106888070A true CN106888070A (en) | 2017-06-23 |
Family
ID=59175217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510939148.6A Pending CN106888070A (en) | 2015-12-15 | 2015-12-15 | The method and apparatus for being conversated in cordless communication network and being decoded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106888070A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790871A (en) * | 2007-06-20 | 2010-07-28 | 摩托罗拉公司 | Broadcast channel signal and apparatus for managing the transmission and receipt of broadcast channel information |
| CN101983489A (en) * | 2008-03-31 | 2011-03-02 | 马维尔国际贸易有限公司 | Method and apparatus for selective combining and decoding of the multiple code blocks of a transport block |
| CN102904667A (en) * | 2011-07-27 | 2013-01-30 | 杰脉通信技术(上海)有限公司 | Method for decoding tail biting convolution codes of PBCH (physical broadcast channel) decoding in LTE (long term evolution) |
| CN102904668A (en) * | 2011-07-27 | 2013-01-30 | 杰脉通信技术(上海)有限公司 | Rapid PBCH (physical broadcast channel) decoding method for LTE (long term evolution) |
-
2015
- 2015-12-15 CN CN201510939148.6A patent/CN106888070A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790871A (en) * | 2007-06-20 | 2010-07-28 | 摩托罗拉公司 | Broadcast channel signal and apparatus for managing the transmission and receipt of broadcast channel information |
| CN101983489A (en) * | 2008-03-31 | 2011-03-02 | 马维尔国际贸易有限公司 | Method and apparatus for selective combining and decoding of the multiple code blocks of a transport block |
| CN102904667A (en) * | 2011-07-27 | 2013-01-30 | 杰脉通信技术(上海)有限公司 | Method for decoding tail biting convolution codes of PBCH (physical broadcast channel) decoding in LTE (long term evolution) |
| CN102904668A (en) * | 2011-07-27 | 2013-01-30 | 杰脉通信技术(上海)有限公司 | Rapid PBCH (physical broadcast channel) decoding method for LTE (long term evolution) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190288818A1 (en) | Coding scheme determining method and apparatus | |
| US11601167B2 (en) | Method and device for power adjustment in UE and base station | |
| US10749549B2 (en) | Method and device in user equipment and base station for wireless communication | |
| WO2020164417A1 (en) | Methods for use in wireless communication user equipment and base station, and apparatuses | |
| US20190380136A1 (en) | Method and device for dynamic scheduling in ue and base station | |
| US20210045113A1 (en) | Method and device used for wireless communication in ue and base station | |
| US10547330B2 (en) | Method and device in user equipment and base station for wireless communication | |
| US11711164B2 (en) | Method and device in UE and base station used for channel coding | |
| CN109217981B (en) | Method and device used in user equipment and base station for dynamic scheduling | |
| US10523790B2 (en) | System and method of header compression for online network codes | |
| EP4178116B1 (en) | Method and device in ue and base station for channel coding | |
| WO2021031899A1 (en) | Method and apparatus used in node of wireless communication | |
| CN113489576A (en) | Method and device used in wireless communication node | |
| CN110662254B (en) | Method and arrangement in a communication node used for wireless communication | |
| CN113489566B (en) | Method and device used in node of wireless communication | |
| CN109756294A (en) | A kind of user equipment for wireless communication, the method and apparatus in base station | |
| KR20100081902A (en) | Method for transmitting and receiving data using random linear coding | |
| CN106888070A (en) | The method and apparatus for being conversated in cordless communication network and being decoded | |
| CN113824665A (en) | Method and device used in wireless communication node | |
| WO2019095148A1 (en) | Method and device used in user equipment and base station for wireless communication | |
| CN114095116B (en) | DCI analysis method, transmission method, terminal and network equipment | |
| CN115225197B (en) | Method and apparatus for wireless communication | |
| WO2023227047A1 (en) | Method and apparatus used in node for wireless communication | |
| WO2024140298A1 (en) | Method and apparatus used in communication node for wireless communication | |
| US20240215025A1 (en) | Method and device for wireless communication in nodes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201206 (Shanghai) Pudong New Area free trade test zone ningqiao Road No. 388 Applicant after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 388 Applicant before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
|
| RJ01 | Rejection of invention patent application after publication |