CN105309021B

CN105309021B - A kind of transmission method of receiving device and response message

Info

Publication number: CN105309021B
Application number: CN201480000512.6A
Authority: CN
Inventors: 汪凡; 马雪利
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-04-17
Filing date: 2014-04-17
Publication date: 2019-05-28
Anticipated expiration: 2034-04-17
Also published as: WO2015157958A1; CN105309021A

Abstract

A kind of transmission method of receiving device and response message, the described method includes: receiving device is before switching time point, it is decoded to from the received data frame of sending device, and use on-off keying OOK mode to sending device feeding back response information according to decoding result, after switching time point, it is decoded to from the received data frame of sending device, and uses binary phase shift keying BPSK mode to sending device feeding back response information according to decoding result；Alternatively, do not feed back any response message before switching time point, after switching time point, using BPSK mode or OOK mode to sending device feeding back response information.The embodiment of the present invention can reduce the power consumption of Traffic Channel by using different response message feedback systems before and after switching time point.

Description

A kind of transmission method of receiving device and response message

Technical field

The present invention relates to fields of communication technology, and in particular to the transmission method of a kind of receiving device and response message.

Background technique

Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, abbreviation UMTS) The mainstream formulated for third generation partner program (Third Generation Partnership Project, abbreviation 3GPP) Wireless communication standard.In order to meet growing rate requirement, high-speed packet access (High Speed is introduced in UMTS Packet Access, abbreviation HSPA) technology, HSPA includes the high-speed downstream packet access (High introduced in R5 specification Speed Downlink Packet Access, abbreviation HSDPA) technology and R6 specification in introduce high speed uplink packet access (High Speed Uplink Packet Access, abbreviation HSUPA) technology.

In 3GPP R12 standard, studying in HSUPA transmission channel dedicated channel enhances characteristic, characteristic first is that Ascending voice frame terminates (frame Early termination, abbreviation FET) in advance.Specifically, uplink shown in Figure 1 FET schematic diagram, traditional ascending voice frame length is 20ms (being divided into 30 slot s lot), for user equipment (User Equipment, abbreviation UE) to each ascending voice frame of base station NodeB transmission, NodeB can be docked every one or more slot The voice data received attempts primary decoding, if decoding failure, NodeB is by sending wrong responses (Negative Acknowledgement, abbreviation NACK) Lai Tongzhi UE continue send voice data, if successfully decoded, NodeB passes through transmission Correct response (Acknowledgement, abbreviation ACK) Lai Tongzhi UE stops sending voice data.

NodeB can use binary phase shift keying (Binary when to UE feeding back response information (ACK/NACK) Phase Shift Keying, abbreviation BPSK) mode or on-off keying (on-off keying, abbreviation OOK) mode come it is anti- Feedback.BPSK mapping mode schematic diagram and OOK mapping mode schematic diagram shown in Fig. 3 shown in Figure 2, BPSK mode is by ACK It is mapped as 1 and NACK is mapped as -1, and ACK is mapped as 1 and is mapped as discontinuously sending by NACK by OOK mode (Discontinuous Transmission, abbreviation DTX), DTX means not send data, wherein N_symbolIndicate carrying The symbolic number of ACK or NACK.

FET detection for ascending voice frame, when NodeB uses BPSK mode feeding back response information, since UE is not required to Do DTX detection, that is, be known in advance NodeB can each Transmission Time Interval (Transmission Time Interval, Abbreviation TTI) internal feedback+1 or -1, so, ACK can be considered when the feedback signal that UE is obtained is greater than 0 (such as 0.2), when NACK can be considered when the feedback signal that UE is obtained is less than 0, therefore UE can identify NodeB according to lower reception power The response message of feedback, correspondingly, NodeB can also save certain transmission power, and still, NodeB is both needed in each TTI Response message is fed back, so NodeB is required to consume a degree of power in each TTI；When NodeB uses the side OOK When formula feeding back response information, due to UE be known in advance NodeB can in each TTI internal feedback+1 or 0 (0 is DTX, and expression is not sent out Send), wherein NodeB do not needed when not sending loss send power, still, when NodeB to UE feedback+1 when, UE need into Row threshold judgement come determine NodeB feedback be+1 or 0, for example, UE identification feedback signal be greater than threshold value (such as 0.5) it is just considered ACK when, NACK is just considered when the feedback signal of UE identification is less than threshold value, due to needing to carry out door Limit judgement, so UE needs to consume higher reception power and the ACK identified is made to level off to+1, correspondingly, NodeB as far as possible It also needs to consume higher transmission power.Therefore, above two mode is required to consume higher service channel power.This Outside, the FET of downlink speech frame is detected, equally exists drawbacks described above, details are not described herein.

Summary of the invention

The main purpose of the embodiment of the present invention is to provide the transmission method of a kind of receiving device and response message, to realize Reduce the purpose of service channel power consumption.

In order to solve the above technical problems, the technical solution adopted by the present invention is that:

In a first aspect, the present invention provides a kind of receiving devices, comprising:

First decoding module, it is described for being decoded in first time period to from the received data frame of sending device First time period is the period before starting to receive the data frame to switching time point, and the switching time point is conversion response The time point of message feedback mode；

First responder module, for according to the decoding result of first decoding module using on-off keying OOK mode to The sending device feeding back response information；

Second decoding module, for being decoded in second time period to from the received data frame of the sending device, The second time period is at least one time slot from the switching time point；

Second responder module, for using binary phase shift keying BPSK according to the decoding result of second decoding module Mode is to the sending device feeding back response information.

In the first possible implementation of the first aspect, the receiving device further include:

First switching point obtains module, for obtaining the switching time point；

First switching point obtains module and is specifically used for:

Predefined switching time point is obtained from the receiving device；

Alternatively, obtaining RNC when the receiving device is user equipment (UE) from radio network controller (RNC) side and matching in advance The switching time point set obtains the preconfigured switching time point of NodeB from base station NodeB side；When the receiving device is When NodeB, the preconfigured switching time point of RNC is obtained from the side RNC；

Alternatively, when the receiving device is UE, according to block error probability desired value, the Yi Jiyu obtained from the side RNC or NodeB The corresponding data frame receipt time slot of the block error probability desired value determines the switching time point；When the receiving device is NodeB When, it is true according to the block error probability desired value obtained from the side RNC and data frame receipt time slot corresponding with the block error probability desired value The fixed switching time point；

Alternatively, before determining the switching time point, after being decoded to the data frame and obtaining decoding result, It determines from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, it will be described successfully decoded Rate is determined as the switching time point at the time of reaching preset value for the first time.

With reference to first aspect or the first possible implementation of first aspect, in second of possible implementation In, first decoding module connects specifically for each preset time point in first time period to from the sending device The data frame of receipts is decoded；

Wherein, each preset time point in the first time period includes: in the first time period at interval of at least Time point when one time slot；Alternatively, in the first time period, at interval of at least one since preset quantity time slot Time point when time slot.

With reference to first aspect or the first possible implementation of first aspect, in the third possible implementation In, second decoding module connects specifically for each preset time point in second time period to from the sending device The data frame of receipts is decoded；

Wherein, each preset time point in the second time period includes: in the second time period at interval of at least Time point when one time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, In, the last one time point be when second responder module feeds back first correct response using the BPSK mode when It carves.

Second aspect, the present invention provides a kind of receiving devices, comprising:

Third decoding module, it is described for being decoded within the third period to from the received data frame of sending device The third period is at least one time slot from switching time point, and the switching time point is conversion response message feedback The time point of mode；

Third responder module, for using binary phase shift keying BPSK according to the decoding result of the third decoding module Mode or on-off keying OOK mode are to the sending device feeding back response information；

Forbid responder module, within the 4th period not to the sending device feeding back response information, the described 4th Period is the period before starting to receive the data frame to the switching time point.

In the first possible implementation of the second aspect, the receiving device further include:

Second switching point obtains module, for obtaining the switching time point；

Second switching point obtains module and is specifically used for:

Predefined switching time point is obtained from itself；

Alternatively, being decoded within the 4th period to from the received data frame of the sending device, translated in acquisition After code result, determine from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, by institute It states and is determined as the switching time point at the time of decoding success rate reaches preset value for the first time.

In conjunction with the first possible implementation of second aspect, in the second possible implementation, described second Switching point obtains module and connects specifically for each preset time point within the 4th period to from the sending device The data frame of receipts is decoded；

Wherein, each preset time point in the 4th period includes: in the 4th period at interval of at least Time point when one time slot；Alternatively, within the 4th period, at interval of at least one since preset quantity time slot Time point when time slot.

It is possible at the third in conjunction with the first or second of possible implementation of second aspect or second aspect In implementation, the third decoding module, specifically for each preset time point within the third period, to from the hair The received data frame of equipment is sent to be decoded；

Wherein, each preset time point in the third period includes: in the third period at interval of at least Time point when one time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, In, the last one time point is that the third responder module feeds back first using the BPSK mode or OOK mode and just should indeed At the time of when answering.

The third aspect, the present invention provides a kind of transmission methods of response message, comprising:

Receiving device decodes in first time period to from the received data frame of sending device, and according to decoding result Using on-off keying OOK mode to the sending device feeding back response information, the first time period is from starting described in reception Period before data frame to switching time point, the switching time point are the time points for converting response message feedback system；

Receiving device decodes in second time period to from the received data frame of the sending device, and according to decoding As a result using binary phase shift keying BPSK mode to the sending device feeding back response information, the second time period is from institute State at least one time slot that switching time point has started.

In the first possible implementation of the third aspect, the method also includes: receiving device obtain described in cut Change time point；

The receiving device obtains the switching time point, specifically includes:

Receiving device obtains predefined switching time point from itself；

Alternatively, receiving device is pre- from radio network controller (RNC) side acquisition RNC when receiving device is user equipment (UE) The switching time point that first configures obtains the preconfigured switching time point of NodeB from base station NodeB side；When receiving device is When NodeB, receiving device obtains the preconfigured switching time point of RNC from the side RNC；

Alternatively, when receiving device be UE when, receiving device according to the block error probability desired value obtained from the side RNC or NodeB, with And data frame receipt time slot corresponding with the block error probability desired value determines the switching time point；When receiving device is NodeB When, receiving device connects according to the block error probability desired value obtained from the side RNC and data frame corresponding with the block error probability desired value Time receiving gap determines the switching time point；

Alternatively, receiving device is translated before determining the switching time point whenever the data frame is decoded and obtained After code result, determine from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, by institute It states and is determined as the switching time point at the time of decoding success rate reaches preset value for the first time.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in second of possible implementation In, the receiving device decodes in first time period to from the received data frame of sending device, it specifically includes:

Each preset time point of the receiving device in first time period, is translated from the received data frame of sending device Code；

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the third possible implementation In, the receiving device decodes in second time period to from the received data frame of the sending device, it specifically includes:

Each preset time point of the receiving device in second time period, to from the received data frame of the sending device into Row decoding；

Wherein, each preset time point in the second time period includes: in the second time period at interval of at least Time point when one time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, In, at the time of the last one time point is when feeding back first correct response using the BPSK mode.

Fourth aspect, the present invention provides a kind of transmission methods of response message, comprising:

Receiving device decodes within the third period to from the received data frame of sending device, and according to decoding result Using binary phase shift keying BPSK mode or on-off keying OOK mode to the sending device feeding back response information, described Three periods were at least one time slots from switching time point, and the switching time point is conversion response message feedback side The time point of formula；

Receiving device within the 4th period not to the sending device feeding back response information, the 4th period be from Start to receive the period before the data frame to the switching time point.

In the first possible implementation of the fourth aspect, the method also includes: receiving device obtain described in cut Change time point；

The receiving device obtains the switching time point, specifically includes:

Receiving device obtains predefined switching time point from itself；

Alternatively, receiving device decodes within the 4th period to from the received data frame of the sending device, After obtaining and decoding result, determine from starting to receive the data frame to obtaining the successfully decoded of decoding this period of result Rate is determined as the switching time point at the time of decoding success rate is reached preset value for the first time.

In conjunction with the first possible implementation of fourth aspect, in the second possible implementation, the reception Equipment decodes within the 4th period to from the received data frame of the sending device, specifically includes:

Each preset time point of the receiving device within the 4th period, to from the received data of the sending device Frame is decoded；

It is possible at the third in conjunction with the first or second of possible implementation of fourth aspect or fourth aspect In implementation, the receiving device is decoded within the third period to from the received data frame of sending device, specific to wrap It includes:

Each preset time point of the receiving device within the third period, to from the received data frame of the sending device into Row decoding；

Wherein, each preset time point in the third period includes: in the third period at interval of at least Time point when one time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, In, at the time of the last one time point is when feeding back first correct response using the BPSK mode or OOK mode.

The transmission method of receiving device provided in an embodiment of the present invention and response message uses OOK before switching time point Mode feeding back response information, and BPSK mode feeding back response information is used after switching time point, due to before switching time point The NACK of feedback is more and when using OOK mode NACK mapping value for DTX (i.e. not feeding back response information), so can be one Determine the power consumption that Traffic Channel is reduced in degree, and the ACK fed back after switching time point is more and compared with OOK mode Transmit that power consumed by ACK is lower using BPSK mode, so the power consumption of Traffic Channel can be further decreased.Alternatively, The embodiment of the present invention does not feed back any response message before switching time point, and OOK mode or BPSK are used after switching time point Mode feeding back response information, due to not feeding back any message before switching time point, so can equally reduce Traffic Channel Power consumption.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is uplink FET schematic diagram in the prior art；

Fig. 2 is BPSK mapping mode schematic diagram in the prior art；

Fig. 3 is OOK mapping mode schematic diagram in the prior art；

Fig. 4 is the system architecture diagram being made of in the embodiment of the present invention sending device and receiving device；

Fig. 5 is the structural schematic diagram of receiving device in the embodiment of the present invention；

Fig. 6 is that decoding success rate with decoding time compares schematic diagram in the embodiment of the present invention；

Fig. 7 is one of switching schematic diagram of response mode in the embodiment of the present invention；

Fig. 8 is another structural schematic diagram of receiving device in the embodiment of the present invention；

Fig. 9 is the two of the switching schematic diagram of response mode in the embodiment of the present invention；

Figure 10 is the composition schematic diagram of receiving device in the embodiment of the present invention；

Figure 11 is another composition schematic diagram of receiving device in the embodiment of the present invention；

Figure 12 is the flow diagram of the transmission method of response message in the embodiment of the present invention；

Figure 13 is another flow diagram of the transmission method of response message in the embodiment of the present invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

The transmission method of a kind of receiving device provided in an embodiment of the present invention and response message, be suitable for Fig. 4 shown in by The system architecture diagram that sending device 401 and receiving device 402 form.When user equipment sends upstream data to base station NodeB When, then the sending device 401 is UE and the receiving device 402 is NodeB；When NodeB sends downlink data to UE, Then the sending device 401 is NodeB and the receiving device 402 is UE.During the work time, the sending device 401 is logical Cross Dedicated Physical Data Channel (Dedicated Physical Data Channel, abbreviation DPDCH) Xiang Suoshu receiving device 402 transmission data frames (such as: the data frame can be speech frame), during receiving the data frame, receiving device 402 It can repeatedly attempt to decode the receiving portion of the data frame.If decoding error, fed back to the sending device 401 Wrong responses (Negative Acknowledgement, abbreviation NACK) message, so that sending device 401 continues to send the number According to frame；If successfully decoded, correct response (Acknowledgement, abbreviation ACK) is fed back to the sending device 401 and is disappeared Breath, then sending device 401 can stop or continue the transmission of the data frame after receiving ACK message.Due in data frame Certain service channel power can be consumed in transmission process, and the purpose of the embodiment of the present invention is that in order to be further reduced business letter The power consumption in road, lower mask body introduce each embodiment of the invention.

Referring to Fig. 5, for the structural schematic diagram for the receiving device that the embodiment of the present invention one provides, the receiving device 500 is specific Include:

First decoding module 501, for being decoded in first time period to from the received data frame of sending device, institute Stating first time period is the period before starting to receive the data frame to switching time point, and the switching time point is that conversion is answered Answer the time point of message feedback mode.

In embodiments of the present invention, first decoding module 501, specifically for being preset each of in first time period Time point decodes to from the received data frame of the sending device；Wherein, when being preset each of in the first time period Between point include: in the first time period at interval of at least one time slot when time point；Alternatively, in the first time period Interior, when since preset quantity time slot at interval of at least one time slot time point.

First responder module 502, for using on-off keying OOK according to the decoding result of first decoding module 501 Mode is to the sending device feeding back response information.

Second decoding module 503, for translating in second time period from the received data frame of the sending device Code, the second time period is at least one time slot from the switching time point.

In embodiments of the present invention, second decoding module 503, specifically for being preset each of in second time period Time point decodes to from the received data frame of the sending device；Wherein, when being preset each of in the second time period Between point include: in the second time period at interval of at least one time slot when time point；Alternatively, being opened from the switching time point Time point when beginning at interval of at least one time slot, wherein the last one time point uses institute for second responder module 504 At the time of stating when BPSK mode feeds back first correct response.

Second responder module 504, for using binary phase-shift key according to the decoding result of second decoding module 503 BPSK mode is controlled to the sending device feeding back response information.

Further, receiving device 500 further include: the first switching point obtains module, for obtaining the switching time Point.The first switching point acquisition module can be used any one following mode and obtain the switching time point:

Mode 1 obtains predefined switching time point from receiving device.

For mode 1, a switching time point, such as 10slot can be preset in network protocol, it is described in this way Receiving device can obtain the predefined switching time point 10slot of network from itself.

Mode 2, when the receiving device be user equipment (UE) when, from radio network controller (RNC) side obtain RNC match in advance The switching time point set obtains the preconfigured switching time point of NodeB from base station NodeB side；When the receiving device is When NodeB, the preconfigured switching time point of RNC is obtained from the side RNC.

For mode 2, because according to decoding mechanism, it is each in reception period that network can calculate in advance receiving device A time point is to the decoding success rate of the data frame (i.e. from starting to receive data frame to the decoding for sometime putting this period The probability of success), so RNC or NodeB can choose one and default decoding success rate pair during data frame receipt in advance The time point answered, and the switching time point by the time point of selection (such as 10slot) as response feedback mode.

Mode 3, when the receiving device is UE, according to the block error probability desired value obtained from the side RNC or NodeB and Data frame receipt time slot corresponding with the block error probability desired value determines the switching time point；When the receiving device is When NodeB, according to the block error probability desired value obtained from the side RNC and data frame receipt corresponding with the block error probability desired value Time slot determines the switching time point.

For mode 3, when receiving device is UE, RNC or NodeB can send a block error probability desired value BLER_ to UE Target and data frame receipt time slot T_target corresponding with BLER_target, or only a Block Error Rate is sent to UE Target value BLER_target (data frame receipt time slot T_target corresponding with BLER_target is a default value at this time), At this point, receiving device based on decoding mechanism can be determined according to BLER_target and T_target a data frame receipt time slot with The corresponding relationship of data frame decoding success rate, such receiving device can be according to the corresponding relationships, and determination is preset successfully decoded The corresponding reception time slot of rate, and using determining reception time slot as switching time point；When receiving device is NodeB, machine is realized Make identical, details are not described herein.

For example, decoding success rate shown in Figure 6 compares schematic diagram with decoding time.

In left figure, BLER_target=0.01, T_target=15slot, in right figure, BLER_target= 0.01, T_target=30slot.Assuming that the data frame is speech frame (frame length 30slot), data frame receipt time slot Corresponding relationship with data frame decoding success rate is referring to curve in figure, wherein dotted line, which represents, does not have sound number in the speech frame According to solid line, which represents in the speech frame, voice data, in addition, curve PA3 and curve VA30 corresponds to different channel performances. In left figure, as T_target=15slot, receiving device reaches 99% (i.e. to the decoding success rate of the speech frame 0.01) BLER_target is, it is assumed that default decoding success rate is 10% and uses VA30 Full curve, then inquiring left figure can , 10% success rate corresponds to the 5th time slot of VA30 Full curve, so can be using the 5th time slot as response feedback mode Switching time point.In right figure, as T_target=30slot, receiving device reaches the decoding success rate of the speech frame To 99% (i.e. BLER_target is 0.01), it is assumed that default decoding success rate is 10% and uses VA30 Full curve, then looks into Asking right figure can obtain, and 10% success rate corresponds to the 10th time slot of VA30 Full curve, so can be using the 10th time slot as answering Answer the switching time point of feedback system.So in practical application, for example curve PA3 or song can be configured in advance for receiving device The corresponding curve graph of line VA30 or mathematical model pass through inquiry curve graph or mathematical computations then according to decoding success rate is preset Mode obtain the corresponding time slot of default decoding success rate, and using the time slot as the switching time of response feedback mode point.

Mode 4, before determining the switching time point, whenever being decoded to the data frame and obtain decoding result Afterwards, it determines from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, by the decoding Success rate is determined as the switching time point at the time of reaching preset value for the first time.

For mode 4, it is assumed that the first decoding module 501 is just once translated after every frame data for receiving a time slot Yard, decoding success rate is just calculated according to currently decoding result of the decoding result with before after obtaining decoding result, once go out When existing decoding success rate reaches preset value, just using the moment as switching time point.

As it can be seen that the difference of above-mentioned each mode is: mode 1,2 and 3 is when obtaining the switching before receiving data frame Between point, and mode 4 is that the switching time point is determined according to the decoding success rate obtained every time during receiving data frame.

In order to more easily understand above-described embodiment one, it is exemplified below:

One of switching schematic diagram of response mode shown in Figure 7.Assuming that the receiving device is base station NodeB, institute State sending device be user equipment (UE), UE by Dedicated Physical Data Channel DPDCH to NodeB send uplink data frames (such as Speech frame, a kind of typical voice frame length are 20ms, i.e. 30slots), Primary Common Control Physical Channel (Primary in figure Common Control Physical Channel, abbreviation P-CCPCH) frame length be 10ms (38400 chip), be divided into 15 Slot s lot, it is the timing reference of downlink frame.If first switching point obtains the switching time point that module obtains For the slot10 of the side NodeB, then before slot10, NodeB, to UE feeding back ACK/NACK, is opened using OOK mode from slot10 Begin, NodeB uses BPSK mode to UE feeding back ACK/NACK.The specific implementation process is as follows:

Before slot10, it is assumed that at interval of a time slot, just to receiving, data frame trial is primary to be decoded and using OOK NodeB Mode is to UE feeding back ACK/NACK, specifically, if slot0 completion of the upstream data that sends of the slot0 of the side UE in the side NodeB connects Receive, then complete receive after NodeB to the reception data in slot0 carry out decoding and after decoding terminates to UE feeding back ACK/ NACK；If slot1 of the upstream data that the slot1 of the side UE is sent in the side NodeB completes to receive, the NodeB after completing to receive Decoding is carried out and after decoding terminates to UE feeding back ACK/NACK ... ... to the reception data in slot0-slot1；If the side UE Slot9 transmitted by upstream data the side NodeB slot9 complete receive, then complete receive after NodeB to slot0- Reception data in slot9 carry out decoding and after decoding terminates to UE feeding back ACK/NACK.Alternatively, NodeB is in setting quantity (such as the 5th time slot starts) just attempts once to decode and adopt at interval of one or more time slots to reception data frame after a time slot With OOK mode to UE feeding back ACK/NACK, specific working mode is same as above, and details are not described herein.

Assuming that at interval of a time slot, just to receiving, data frame trial is primary to be decoded NodeB after slot10 and slot10 And using BPSK mode to UE feeding back ACK/NACK, specifically, if the upstream data that the slot10 of the side UE is sent is in the side NodeB Slot10 complete receive, then complete receive after NodeB to the reception data in slot0-slot10 carry out decode and translating Code terminate after to UE feeding back ACK/NACK；If slot11 completion of the upstream data that the slot11 of the side UE is sent in the side NodeB connects Receive, then complete receive after NodeB to the reception data in slot0-slot11 carry out decoding and after decoding terminates it is anti-to UE Present ACK/NACK ... ....Alternatively, NodeB is just attempted once to decode and be fed back to UE in each reception time slot since slot10 ACK/NACK, until when feeding back first ACK using the BPSK mode, specific working mode is same as above, no longer superfluous herein It states.

It is understood that the conveying length of ACK/NACK message can be one or more time slots, and by for example enhancing specially With channel hybrid automatic repeat request indication channel (E-DCH Hybrid ARQ Indicator Channel, abbreviation E-HICH) Channels are waited to carry；The conveying length of ACK/NACK message may be 1 or multiple symbols, and by for example transimission power control Channels such as (Transmit Power Control, abbreviation TPC) are made to carry.

In the embodiment of the present invention one, a data frame the reception period (i.e. receiving device from start receive data frame to Complete the reception of data frame) in, receiving device will gradually rise the decoding success rate of data accepted, so, before reception Phase, the NACK message that receiving device is fed back to sending device is more, and phase after the receipt, receiving device are fed back to sending device ACK message is more, therefore, OOK mode feeding back response information can be used before switching time point, and adopt after switching time point With BPSK mode feeding back response information.The reasons why sampling aforesaid way feeding back response information is: due to anti-before switching time point The NACK of feedback is more and when using OOK mode NACK mapping value for DTX (i.e. not feeding back response information), so can be certain The power consumption of Traffic Channel is reduced in degree, and the ACK fed back after switching time point is more and adopts compared with OOK mode Transmit that power consumed by ACK is lower with BPSK mode, so the power consumption of Traffic Channel can be further decreased.

In hardware realization, it can be embedded in the form of hardware with upper module or independently of in the processor of receiving device, Receiving device can also be stored in a software form, as UE memory in, execute above each mould in order to which processor calls The corresponding operation of block.The processor can be central processing unit (CPU), microprocessor, single-chip microcontroller etc..

It is the structural schematic diagram of receiving device provided by Embodiment 2 of the present invention referring to Fig. 8, the receiving device 800 is specific Include:

Third decoding module 801, for being decoded within the third period to from the received data frame of sending device, institute Stating the third period is at least one time slot from switching time point, and the switching time point is the whole of the data frame At the time of in a reception period.

In embodiments of the present invention, the third decoding module 801, specifically for being preset each of within the third period Time point decodes to from the received data frame of the sending device；Wherein, when being preset each of in the third period Between point include: in the third period at interval of at least one time slot when time point；Alternatively, being opened from the switching time point Time point when beginning at interval of at least one time slot, wherein the last one time point uses institute for the third responder module 802 State BPSK mode or at the time of when OOK mode feeds back first correct response.

Third responder module 802, for using binary phase shift keying according to the decoding result of the third decoding module BPSK mode or on-off keying OOK mode are to the sending device feeding back response information.

Forbid responder module 803, within the 4th period not to the sending device feeding back response information, described the Four periods were the periods before starting to receive the data frame to the switching time point.

Further, above-mentioned receiving device 800 further include: the second switching point obtains module, when for obtaining the switching Between point；The second switching point acquisition module can be used any one following mode and obtain the switching time point:

Mode 1 obtains predefined switching time point from itself.

Mode 4 decodes within the 4th period to from the received data frame of the sending device, is obtaining decoding knot After fruit, determines from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, translated described Code success rate is determined as the switching time point at the time of reaching preset value for the first time.

Wherein, second switching point obtains module, right specifically for each preset time point within the 4th period It is decoded from the received data frame of the sending device；Wherein, each preset time point in the 4th period includes: Time point when in the 4th period at interval of at least one time slot；Alternatively, within the 4th period, from present count Measure a time point when time slot starts at interval of at least one time slot.

It should be noted that the related introduction of above-mentioned each mode refers to embodiment one, details are not described herein.

In order to more easily understand above-described embodiment two, it is exemplified below:

The two of the switching schematic diagram of response mode shown in Figure 9.Assuming that the receiving device is base station NodeB, institute State sending device be user equipment (UE), UE by Dedicated Physical Data Channel DPDCH to NodeB send uplink data frames (such as Speech frame, a kind of typical voice frame length are 20ms, i.e. 30slots), Primary Common Control Physical Channel (Primary in figure Common Control Physical Channel, abbreviation P-CCPCH) frame length be 10ms (38400 chip), be divided into 15 Slot s lot, it is the timing reference of downlink frame.If second switching point obtains the switching time point that module obtains For the slot5 of the side NodeB, then before slot5, NodeB is not to UE feeding back ACK/NACK, and since slot5, NodeB is used BPSK mode or OOK mode are to UE feeding back ACK/NACK.The specific implementation process is as follows:

Assuming that NodeB just attempts once to decode and adopt at interval of a time slot after slot5 and slot5 to reception data frame With OOK mode or BPSK mode to UE feeding back ACK/NACK, specifically, if the upstream data that the slot5 of the side UE is sent exists The slot5 of the side NodeB completes to receive, then NodeB decodes the reception data in slot0-slot5 after completing to receive And to UE feeding back ACK/NACK after decoding terminates；If slot6 of the upstream data that the slot6 of the side UE is sent in the side NodeB is complete At reception, then NodeB carries out decoding and after decoding terminates to UE to the reception data in slot0-slot6 after completing to receive Feeding back ACK/NACK ... ....Alternatively, since slot4 NodeB each reception time slot just attempt once decode and to UE it is anti- ACK/NACK is presented, until when feeding back first ACK using the OOK or the BPSK mode, specific working mode is same On, details are not described herein.

In the embodiment of the present invention two, a data frame the reception period (i.e. receiving device from start receive data frame to Complete the reception of data frame) in, receiving device will gradually rise the decoding success rate of data accepted, so, it can connect Early period is received, does not feed back any response message to sending device, only phase after the receipt, feeds back and answers using OOK mode or BPSK mode Message is answered, due to receiving not feedback message early period, it is possible to reduce the power consumption of Traffic Channel.

Further, the embodiment of the present invention also each provides the composition of receiving device 1000 and receiving device 1100.It can Including transmitter, receiver, processor, at least one network interface or other communication interfaces, memory and at least one is logical Bus is believed, for realizing the connection communication between these devices.Transmitter for sending data, receiver for receiving data, Processor is for executing the executable module stored in memory, such as computer program.Memory may be random comprising high speed It accesses memory (RAM:Random Access Memory), it is also possible to further include non-labile memory (non- Volatile memory), a for example, at least magnetic disk storage.(it can be wired or nothing by least one network interface Line) realize communication connection between the system gateway and at least one other network element, internet can be used, wide area network is local Net, Metropolitan Area Network (MAN) etc..

It is the composition schematic diagram for the receiving device 1000 that the embodiment of the present invention three provides, in some embodiment party referring to Figure 10 In formula, program instruction is stored in memory, program instruction can be executed with device processed, transmitter and receiver.Wherein,

Processor, it is described for being decoded to receiver from the received data frame of sending device in first time period First time period is the period before starting to receive the data frame to switching time point, and the switching time point is conversion response The time point of message feedback mode；

Transmitter, for using on-off keying OOK mode to the hair according to the decoding result of first decoding module Send equipment feeding back response information；

Processor, for being decoded to receiver from the received data frame of the sending device in second time period, The second time period is at least one time slot from the switching time point；

Transmitter, for using binary phase shift keying BPSK mode according to the decoding result of second decoding module To the sending device feeding back response information.

In some embodiments of the invention, the receiver is also used to obtain the switching time point；It is specifically used for: Predefined switching time point is obtained from the receiving device；

In some embodiments of the invention, the processor, when specifically for being preset each of in first time period Between point, decoded to from the received data frame of the sending device；Wherein, each preset time in the first time period Point include: in the first time period at interval of at least one time slot when time point；Alternatively, in the first time period, Time point when since preset quantity time slot at interval of at least one time slot.

In some embodiments of the invention, the processor, when specifically for being preset each of in second time period Between point, decoded to from the received data frame of the sending device；Wherein, each preset time in the second time period Point include: in the second time period at interval of at least one time slot when time point；Alternatively, since the switching time point Time point when at interval of at least one time slot, wherein the last one time point is described in second responder module uses At the time of when BPSK mode feeds back first correct response.

It is another composition schematic diagram for the receiving device 1100 that the embodiment of the present invention four provides, in some realities referring to Figure 11 It applies in mode, program instruction is stored in memory, program instruction can be executed with device processed, transmitter and receiver.Wherein:

Processor, it is described for being decoded to receiver from the received data frame of sending device within the third period The third period is at least one time slot from switching time point, and the switching time point is conversion response message feedback The time point of mode；

Transmitter, for using binary phase shift keying BPSK mode according to the decoding result of the third decoding module Or on-off keying OOK mode is to the sending device feeding back response information；

Transmitter is used within the 4th period not to the sending device feeding back response information, the 4th period It is the period before starting to receive the data frame to the switching time point.

In some embodiments of the invention, the processor, specifically for pre- each of within the 4th period If time point, decoded to from the received data frame of the sending device；Wherein, it is preset each of in the 4th period Time point include: in the 4th period at interval of at least one time slot when time point；Alternatively, in the 4th period Interior, when since preset quantity time slot at interval of at least one time slot time point.

In some embodiments of the invention, the processor, when specifically for being preset each of within the third period Between point, decoded to from the received data frame of the sending device；Wherein, each preset time in the third period Point include: in the third period at interval of at least one time slot when time point；Alternatively, since the switching time point Time point when at interval of at least one time slot, wherein the last one time point is described in the third responder module uses At the time of when BPSK mode or OOK mode feed back first correct response.

The receiving device in the embodiment of the present invention is described above, is disappeared below to the response in the embodiment of the present invention The transmission method of breath is described, and related place refers to above-mentioned apparatus embodiment.

It is the flow diagram of the transmission method of provided in an embodiment of the present invention five response messages provided referring to Figure 12, Method includes the following steps:

Step 1201: receiving device decodes in first time period to from the received data frame of sending device, and root According to decoding result using on-off keying OOK mode to the sending device feeding back response information, the first time period is from opening Begin to receive the period before the data frame to switching time point, when the switching time point is conversion response message feedback system Between point.

In embodiments of the present invention, can realize in the following manner in step 1201 " receiving device is in first time period It is interior to be decoded to from the received data frame of sending device ":

Each preset time point of the receiving device in first time period, is translated from the received data frame of sending device Code；Wherein, each preset time point in the first time period include: in the first time period at interval of at least one when Time point when gap；Alternatively, in the first time period, when since preset quantity time slot at interval of at least one time slot Time point.

Step 1202: receiving device decodes in second time period to from the received data frame of the sending device, And according to decoding result using binary phase shift keying BPSK mode to the sending device feeding back response information, when described second Between section be at least one time slot from the switching time point.

In embodiments of the present invention, can realize in the following manner in step 1202 " receiving device is in second time period It is interior to be decoded to from the received data frame of the sending device ":

Each preset time point of the receiving device in second time period, to from the received data frame of the sending device into Row decoding；Wherein, each preset time point in the second time period includes: in the second time period at interval of at least one Time point when a time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein At the time of the last one time point is when feeding back first correct response using the BPSK mode.

Further, the method also includes: receiving devices to obtain the switching time point；Can in the following manner in A kind of mode obtains the switching time point:

Mode 1, receiving device obtain predefined switching time point from itself.

Mode 2, when receiving device be user equipment (UE) when, receiving device from radio network controller (RNC) side obtain RNC Preconfigured switching time point obtains the preconfigured switching time point of NodeB from base station NodeB side；When receiving device is When NodeB, receiving device obtains the preconfigured switching time point of RNC from the side RNC.

Mode 3, when receiving device be UE when, receiving device according to the block error probability desired value obtained from the side RNC or NodeB, And data frame receipt time slot corresponding with the block error probability desired value determines the switching time point；When receiving device is When NodeB, receiving device is according to the block error probability desired value obtained from the side RNC and number corresponding with the block error probability desired value Time slot, which is received, according to frame determines the switching time point.

Mode 4, receiving device are translated before determining the switching time point whenever the data frame is decoded and obtained After code result, determine from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, by institute It states and is determined as the switching time point at the time of decoding success rate reaches preset value for the first time.

It is another flow diagram of the transmission method for the response message that the embodiment of the present invention six provides referring to Figure 13, it should Method the following steps are included:

Step 1301: receiving device decodes within the third period to from the received data frame of sending device, and root Disappeared using binary phase shift keying BPSK mode or on-off keying OOK mode to sending device feedback response according to decoding result Breath, the third period is at least one time slot from switching time point, and the switching time point is conversion response The time point of message feedback mode；Wherein, receiving device within the 4th period not to the sending device feeding back response information, 4th period is the period before starting to receive the data frame to the switching time point.

In embodiments of the present invention, can realize in the following manner in step 1301 " receiving device is in the third period It is interior to be decoded to from the received data frame of sending device ":

Each preset time point of the receiving device within the third period, to from the received data frame of the sending device into Row decoding；Wherein, each preset time point in the third period includes: in the third period at interval of at least one Time point when a time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein At the time of the last one time point is when feeding back first correct response using the BPSK mode or OOK mode.

Mode 1, receiving device obtain predefined switching time point from itself.

Mode 4, receiving device decode within the 4th period to from the received data frame of the sending device, are obtaining After taking decoding result, determine from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, It is determined as the switching time point at the time of decoding success rate is reached preset value for the first time.

In mode 4, each preset time point of the receiving device within the 4th period is received to from the sending device Data frame decoded；Wherein, each preset time point in the 4th period includes: every in the 4th period It is spaced time point when at least one time slot；Alternatively, within the 4th period, since preset quantity time slot at interval of Time point when at least one time slot.

The transmission method of response message provided in an embodiment of the present invention is fed back using OOK mode before switching time point and is answered Message is answered, and uses BPSK mode feeding back response information after switching time point, due to the NACK fed back before switching time point More and NACK when using OOK mode mapping value is DTX (i.e. not feeding back response information), so can drop to a certain extent The power consumption of low Traffic Channel, and the ACK that is fed back after switching time point it is more and compared with OOK mode using the side BPSK Power consumed by formula transmission ACK is lower, so the power consumption of Traffic Channel can be further decreased.Alternatively, the present invention is implemented Example does not feed back any response message before switching time point, is fed back and is answered using OOK mode or BPSK mode after switching time point Message is answered, due to not feeding back any message before switching time point, so can equally reduce the power consumption of Traffic Channel.

It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above Energy.The specific works mistake of corresponding process in above method embodiment, the system that may refer to foregoing description, device and module Journey, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or The division of submodule, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple moulds Block or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, Shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, device or module Indirect coupling or communication connection, can be electrical property, mechanical or other forms.

The module as illustrated by the separation member may or may not be physically separated, aobvious as module The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple On network module.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs 's.

It, can also be in addition, can integrate in a processing module in each functional module in each embodiment of the application It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.

If the integrated module is realized in the form of software function module and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the application The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk Etc. the various media that can store program code.

The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims

1. a kind of receiving device characterized by comprising

First decoding module, for being decoded in first time period to from the received data frame of sending device, described first Period is the period before starting to receive the data frame to switching time point, and the switching time point is conversion response message The time point of feedback system；

First responder module, for according to the decoding result of first decoding module using on-off keying OOK mode to described Sending device feeding back response information；

Second decoding module, it is described for being decoded in second time period to from the received data frame of the sending device Second time period is at least one time slot from the switching time point；

Second responder module, for using binary phase shift keying BPSK mode according to the decoding result of second decoding module To the sending device feeding back response information.

2. receiving device according to claim 1, which is characterized in that the receiving device further include:

First switching point obtains module, for obtaining the switching time point；

First switching point obtains module and is specifically used for:

Predefined switching time point is obtained from the receiving device；

Alternatively, it is preconfigured to obtain RNC from radio network controller (RNC) side when the receiving device is user equipment (UE) Switching time point obtains the preconfigured switching time point of NodeB from base station NodeB side；When the receiving device is NodeB When, the preconfigured switching time point of RNC is obtained from the side RNC；

Alternatively, when the receiving device be UE when, according to the block error probability desired value obtained from the side RNC or NodeB and with it is described The corresponding data frame receipt time slot of block error probability desired value determines the switching time point；When the receiving device is NodeB, root Institute is determined according to the block error probability desired value obtained from the side RNC and data frame receipt time slot corresponding with the block error probability desired value State switching time point；

Alternatively, after being decoded to the data frame and obtaining decoding result, being determined before determining the switching time point It is from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, the decoding success rate is first It is secondary to be determined as the switching time point at the time of reach preset value.

3. receiving device according to claim 1 or 2, which is characterized in that first decoding module is specifically used for the Each preset time point in one period, decodes to from the received data frame of the sending device；

Wherein, each preset time point in the first time period includes: in the first time period at interval of at least one Time point when time slot；Alternatively, in the first time period, at interval of at least one time slot since preset quantity time slot When time point.

4. receiving device according to claim 1 or 2, which is characterized in that second decoding module is specifically used for the Each preset time point in two periods, decodes to from the received data frame of the sending device；

Wherein, each preset time point in the second time period includes: in the second time period at interval of at least one Time point when time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein from The last one time point in time point when the switching time point starts at interval of at least one time slot answers for described second At the time of answering when module uses the BPSK mode to feed back first correct response.

5. a kind of receiving device characterized by comprising

Third decoding module, for being decoded within the third period to from the received data frame of sending device, the third Period is at least one time slot from switching time point, and the switching time point is conversion response message feedback system Time point；

Third responder module, for using binary phase shift keying BPSK mode according to the decoding result of the third decoding module Or on-off keying OOK mode is to the sending device feeding back response information；

Forbid responder module, is used within the 4th period not to the sending device feeding back response information, the 4th time Section is the period before starting to receive the data frame to the switching time point.

6. receiving device according to claim 5, which is characterized in that the receiving device further include:

Second switching point obtains module and is specifically used for:

Predefined switching time point is obtained from itself；

Alternatively, decoding within the 4th period to from the received data frame of the sending device, decoding knot is being obtained After fruit, determines from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, translated described Code success rate is determined as the switching time point at the time of reaching preset value for the first time.

7. receiving device according to claim 6, which is characterized in that second switching point obtains module, is specifically used for Each preset time point within the 4th period, decodes to from the received data frame of the sending device；

Wherein, each preset time point in the 4th period includes: in the 4th period at interval of at least one Time point when time slot；Alternatively, within the 4th period, at interval of at least one time slot since preset quantity time slot When time point.

8. according to the described in any item receiving devices of claim 5 to 7, which is characterized in that the third decoding module, it is specific to use In each preset time point within the third period, decoded to from the received data frame of the sending device；

Wherein, each preset time point in the third period includes: in the third period at interval of at least one Time point when time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein from The last one time point in time point when the switching time point starts at interval of at least one time slot is that the third is answered At the time of answering when module uses the BPSK mode or OOK mode to feed back first correct response.

9. a kind of transmission method of response message characterized by comprising

Receiving device decodes in first time period to from the received data frame of sending device, and is used according to decoding result For on-off keying OOK mode to the sending device feeding back response information, the first time period is from starting to receive the data Period before frame to switching time point, the switching time point are the time points for converting response message feedback system；

Receiving device decodes in second time period to from the received data frame of the sending device, and according to decoding result Using binary phase shift keying BPSK mode to the sending device feeding back response information, the second time period is cut from described Change at least one time slot that time point started.

10. according to the method described in claim 9, it is characterized in that, the method also includes: receiving devices to obtain the switching Time point；

The receiving device obtains the switching time point, specifically includes:

Receiving device obtains predefined switching time point from itself；

Alternatively, receiving device obtains RNC from radio network controller (RNC) side and matches in advance when receiving device is user equipment (UE) The switching time point set obtains the preconfigured switching time point of NodeB from base station NodeB side；When receiving device is NodeB When, receiving device obtains the preconfigured switching time point of RNC from the side RNC；

Alternatively, receiving device is according to block error probability desired value, the Yi Jiyu obtained from the side RNC or NodeB when receiving device is UE The corresponding data frame receipt time slot of the block error probability desired value determines the switching time point；When receiving device is NodeB, connect When receiving unit is according to the block error probability desired value obtained from the side RNC and data frame receipt corresponding with the block error probability desired value Gap determines the switching time point；

Alternatively, receiving device before determining the switching time point, is tied whenever being decoded to the data frame and obtaining decoding After fruit, determines from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, translated described Code success rate is determined as the switching time point at the time of reaching preset value for the first time.

11. method according to claim 9 or 10, which is characterized in that the receiving device in first time period to from The received data frame of sending device is decoded, and is specifically included:

Each preset time point of the receiving device in first time period, decodes to from the received data frame of sending device；

12. method according to claim 9 or 10, which is characterized in that the receiving device in second time period to from The received data frame of sending device is decoded, and is specifically included:

Each preset time point of the receiving device in second time period, is translated from the received data frame of the sending device Code；

Wherein, each preset time point in the second time period includes: in the second time period at interval of at least one Time point when time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein from The last one time point in time point when the switching time point starts at interval of at least one time slot is described in use At the time of when BPSK mode feeds back first correct response.

13. a kind of transmission method of response message characterized by comprising

Receiving device decodes within the third period to from the received data frame of sending device, and is used according to decoding result Binary phase shift keying BPSK mode or on-off keying OOK mode are to the sending device feeding back response information, when the third Between section be at least one time slot from switching time point, the switching time point is conversion response message feedback system Time point；

For receiving device not to the sending device feeding back response information within the 4th period, the 4th period is from the beginning of Period before receiving the data frame to the switching time point.

14. according to the method for claim 13, which is characterized in that the method also includes: it is cut described in receiving device acquisition Change time point；

The receiving device obtains the switching time point, specifically includes:

Receiving device obtains predefined switching time point from itself；

Alternatively, receiving device decodes within the 4th period to from the received data frame of the sending device, obtaining After taking decoding result, determine from starting to receive the data frame to the decoding success rate for obtaining decoding this period of result, It is determined as the switching time point at the time of decoding success rate is reached preset value for the first time.

15. according to the method for claim 14, which is characterized in that the receiving device within the 4th period to from The received data frame of sending device is decoded, and is specifically included:

Each preset time point of the receiving device within the 4th period, to from the received data frame of the sending device into Row decoding；

16. 3 to 15 described in any item methods according to claim 1, which is characterized in that the receiving device is in the third period It is interior to be decoded to from the received data frame of sending device, it specifically includes:

Each preset time point of the receiving device within the third period, is translated from the received data frame of the sending device Code；

Wherein, each preset time point in the third period includes: in the third period at interval of at least one Time point when time slot；Alternatively, since the switching time point at interval of at least one time slot when time point, wherein from The last one time point in time point when the switching time point starts at interval of at least one time slot is described in use At the time of when BPSK mode or OOK mode feed back first correct response.