CN105379384A - Data sending method and device, and data receiving method and device - Google Patents
Data sending method and device, and data receiving method and device Download PDFInfo
- Publication number
- CN105379384A CN105379384A CN201480036716.5A CN201480036716A CN105379384A CN 105379384 A CN105379384 A CN 105379384A CN 201480036716 A CN201480036716 A CN 201480036716A CN 105379384 A CN105379384 A CN 105379384A
- Authority
- CN
- China
- Prior art keywords
- user equipment
- unlicensed spectrum
- base station
- data
- preset unlicensed
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Disclosed are a data sending method and device, and a data receiving method and device, which are used for avoiding the inconsistency between an interception result of a user equipment and the scheduling of a base station. The method in the embodiments of the present invention comprises: receiving, by a user equipment, an instruction from a base station, wherein the indication is used for indicating a pre-set unauthorized frequency spectrum; and intercepting, by the user equipment, whether the pre-set unauthorized frequency spectrum is idle, and if the pre-set unauthorized frequency spectrum is idle, sending, by the user equipment, uplink data to the base station using the pre-set unauthorized frequency spectrum. The embodiments of the present invention can avoid the inconsistency between an interception result of a user equipment and the scheduling of a base station.
Description
Data transmission method for uplink and device, data receiver method and engineering device technique field
The present invention relates to moving communicating field, more particularly to data transmission method for uplink and device, data receiver method and device.
Background technology
Frequency spectrum is the basis of radio communication.According to the FCC of newest issue（Federal Communications Commission, FCC) international frequency language white paper, unauthorized (unlicensed) frequency spectrum resource is greater than mandate frequency spectrum resource.By LTE (Long Term Evolution, Long Term Evolution）Equipment application not only can effectively utilize unlicensed spectrum resource, can also provide more efficiently wireless access, meet growing mobile broadband demand for services in unlicensed spectrum.
In view of LTE user equipmenies (User equipment, UE) characteristic, LTE system by the use of one of feasible program of unlicensed spectrum is used unlicensed spectrum as the secondary cell frequency spectrum resource of LTE equipment.For example, LTE base station obtains the unlicensed spectrum resource of free time by modes such as network interceptings, then the unlicensed spectrum resource got is allocated to LTE user equipmenies as secondary cell, to allow LTE user equipmenies to carry out data transmission using above-mentioned frequency spectrum resource.
According to the agreements of ESTI EN 301 893, equipment needs to be intercepted before data transmission is carried out, and when only intercepted result is the free time, could carry out data transmission.Now, for LTE UE equipment, it sends needs by base station control again.Base station is when dispatching some UE, it is not aware that what the result that UE is intercepted is, and UE is after intercepted result is obtained, it is not aware that whether base station can dispatch oneself, so as to which the problem of UE intercepted result and the scheduling of base station there may be inconsistent can be brought, UE is caused normally to be sent, base station normally can not be dispatched and be received.The content of the invention
The embodiments of the invention provide a kind of data transmission method for uplink and device, data receiver method and device, can avoid user equipment intercepted result and base station scheduling it is inconsistent.
First aspect of the embodiment of the present invention provides a kind of data transmission method for uplink, including：
User equipment receives the instruction from base station, and the instruction is used to indicate preset unlicensed spectrum；Whether the user equipment intercepts the preset unlicensed spectrum idle, if the preset unauthorized
Frequency spectrum is idle, then the user equipment sends upstream data using the preset unlicensed spectrum to the base station.
With reference to the embodiment of the present invention in a first aspect, in the first implementation of the first aspect of the embodiment of the present invention, the user equipment sends upstream data to the base station using the preset unlicensed spectrum and specifically included：
The user equipment avoids mode or Carrier Sense Multiple Access/collision detection mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision.
With reference to the first aspect or the first implementation of first aspect of the embodiment of the present invention, in second of implementation of the first aspect of the embodiment of the present invention, if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation.
With reference to second of implementation of the first aspect of the embodiment of the present invention, in the third implementation of the first aspect of the embodiment of the present invention, if the user equipment avoids mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision, if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation using Carrier Sense Multiple Access/collision-avoidance mechanism；
Or,
If the user equipment sends upstream data using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision detection mode to the base station, if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation using Carrier Sense Multiple Access/collision detection mechanism.
With reference to the embodiment of the present invention in a first aspect, in the 4th kind of implementation of the first aspect of the embodiment of the present invention, methods described also includes：
The user equipment also receives the instruction to transmitting uplink data duration from base station；
The user equipment also includes before sending data to the base station using the preset unlicensed spectrum：
The user equipment determines the data volume of upstream data to be sent according to the transmitting uplink data duration.
With reference to the embodiment of the present invention in a first aspect, in the 5th kind of implementation of the first aspect of the embodiment of the present invention, the user equipment also includes after sending upstream data to the base station using the preset unlicensed spectrum：
The user equipment receives the confirmation from the base station using block affirmation mechanism or normal affirmation mechanism, and the confirmation is used to indicate that the base station receives the upstream data.
Second aspect of the embodiment of the present invention provides a kind of data sending device, including：
Receiving module, for receiving the instruction from base station, the instruction is used to indicate preset unlicensed spectrum；
Processing module, it is whether idle for intercepting the preset unlicensed spectrum by the receiving module；
Sending module, for the processing module listen to the preset unlicensed spectrum it is idle when, send upstream data to the base station using the preset unlicensed spectrum.
With reference to the second aspect of the embodiment of the present invention, in the first implementation of the second aspect of the embodiment of the present invention, the sending module specifically for the processing module listen to the preset unlicensed spectrum it is idle when, avoid mode or Carrier Sense Multiple Access/collision detection mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision.
With reference to the second aspect or the first implementation of second aspect of the embodiment of the present invention, in second of implementation of the second aspect of the embodiment of the present invention, the processing module, be additionally operable to listen to the preset unlicensed spectrum it is not idle when, carry out back-off operation.
With reference to second of implementation of the second aspect of the embodiment of the present invention, in the third implementation of the second aspect of the embodiment of the present invention, if the sending module avoids mode from sending upstream data to the base station using the preset unlicensed spectrum specifically for listening to the preset unlicensed spectrum free time in the processing module using Carrier Sense Multiple Access/collision；The processing module specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision-avoidance mechanism；Or,
If the sending module specifically for the processing module listen to the preset unlicensed spectrum it is idle when, upstream data is sent to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision detection mode；The processing module specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision detection mechanism.
With reference to the second aspect of the embodiment of the present invention, in the 4th kind of implementation of the second aspect of the embodiment of the present invention, the receiving module is additionally operable to receive the instruction to transmitting uplink data duration from base station；The processing module is additionally operable in the sending module using the preset unlicensed spectrum to described
Base station is sent before data, and the data volume of upstream data to be sent is determined according to the transmitting uplink data duration.
With reference to the second aspect of the embodiment of the present invention, in 5th kind of implementation of the second aspect of the embodiment of the present invention, the receiving module is additionally operable to after the sending module sends data using the preset unlicensed spectrum to the base station, confirmation from the base station is received using block affirmation mechanism or normal affirmation mechanism, the confirmation is used to indicate that the base station receives the upstream data.
The third aspect of the embodiment of the present invention provides a kind of data receiver method, including：
Base station sends to user equipment and indicated, described to indicate for indicating preset unlicensed spectrum；The base station receives the upstream data from the user equipment, and the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language.
With reference to the third aspect of the embodiment of the present invention, in the first implementation of the third aspect of the embodiment of the present invention, the base station also includes after receiving the upstream data from the user equipment：
The base station sends confirmation on the preset unlicensed spectrum or on frequency spectrum is authorized to the user equipment, and the confirmation is used to indicate that the base station receives the upstream data.
With reference to the first implementation of the third aspect of the embodiment of the present invention, in second of implementation of the third aspect of the embodiment of the present invention, the base station sends confirmation to the user equipment on the preset unlicensed spectrum or on frequency spectrum is authorized and specifically included：
The base station sends confirmation by descending sub frame on the preset unlicensed spectrum or to the user equipment on frequency spectrum is authorized, wherein described descending sub frame carries medium access control layer instruction, the transmission position for indicating the confirmation.
Fourth aspect of the embodiment of the present invention provides a kind of data sink, including：
Sending module, is indicated for being sent to user equipment, described to indicate for indicating preset unlicensed spectrum；
Receiving module, for receiving the upstream data from the user equipment, the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language.
With reference to the fourth aspect of the embodiment of the present invention, in the first implementation of the fourth aspect of the embodiment of the present invention, the sending module is additionally operable to after the receiving module receives the upstream data from the user equipment, confirmation is sent to the user equipment on the preset unlicensed spectrum or on frequency spectrum is authorized, the confirmation is used to indicate that the base station receives the upstream data.
With reference to the first implementation of the fourth aspect of the embodiment of the present invention, in second of implementation of the fourth aspect of the embodiment of the present invention, the sending module by descending sub frame on the preset unlicensed spectrum or to the user equipment on frequency spectrum is authorized specifically for sending confirmation, wherein described descending sub frame carries medium access control layer instruction, the transmission position for indicating the confirmation.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
In the embodiment of the present invention, intercepted by user equipment oneself in the unlicensed spectrum indicated by base station, and oneself decision-making carries out data transmission at one's leisure, without just sending data under the scheduling of base station, the protocol specification for sending data afterwards need to first be intercepted by so both having met equipment in the agreements of ESTI EN 301 893, it also avoid base station in the intercepted result for the user equipment for not knowing about some the blind scheduling done in the case that user equipment is disturbed to user equipment and occurring and the inconsistent situation of the scheduling of base station.
Brief description of the drawings
Fig. 1 is the flow chart of one embodiment of the data transmission method for uplink of the present invention；Fig. 2 is the flow chart of one embodiment of the data receiver method of the present invention；Fig. 3 is the structural representation of one embodiment of the data sending device of the present invention；Fig. 4 is the structural representation of one embodiment of the data sink of the present invention.Embodiment
The invention provides a kind of data transmission method for uplink and data method of reseptance, can avoid user equipment intercepted result and base station scheduling it is inconsistent.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made should all belong to the scope of protection of the invention.
Referring to Fig. 1, data transmission method for uplink includes in the embodiment of the present invention：
101st, user equipment receives the instruction from base station, and the instruction is used to indicate preset unlicensed spectrum；
In the present embodiment, the base station is the evolved base station in LTE wireless communication systems or LTE-A wireless communication systems.Corresponding, the user equipment is LTE user equipmenies.Certainly, citing is above are only,
Base station and user equipment are not limited.
In the present embodiment, unlicensed spectrum refers to the center frequency point frequency spectrum different with the center frequency point of frequency spectrum is authorized.Each base station can use the part in the unlicensed spectrum, and wherein the part unlicensed spectrum is to be configured in network initial configuration by operator to the base station.For convenience of description, the part unlicensed spectrum herein corresponding to each base station is called preset unlicensed spectrum.Each base station is when using the preset unlicensed spectrum, and which of specifically used preset unlicensed spectrum frequency range is again by the base station is determined according to specific algorithm in operation.
Instruction of the base station to user equipment is used to indicate the preset unlicensed spectrum.Specifically, the preset unlicensed spectrum includes running time-frequency resource position, the running time-frequency resource includes time-domain resource and frequency domain resource, and the time-domain resource can be half of Transmission Time Interval, a Transmission Time Interval or at least two Transmission Time Intervals etc., and this is not restricted；The frequency domain resource can be full bandwidth or portion subcarriers therein, and this is not restricted.In OFDM（Orthogonal Frequency-Division Multiplexing, OFDM) in system, the running time-frequency resource position specifically includes OFDM symbol number and carrier number.
102nd, the user equipment intercepts whether the preset unlicensed spectrum is idle, if the preset unlicensed spectrum is idle, the user equipment sends upstream data using the preset unlicensed spectrum to the base station；
User equipment is intercepted after the instruction from base station is received according to the instruction to be proceeded by the running time-frequency resource position in the preset unlicensed spectrum indicated by the instruction, to confirm whether the preset unlicensed spectrum is idle.The mode intercepted has a variety of, for example, can be intercepted according to the protocol specifications of ESTI EN 301 893 to channel.
When user equipment is intercepted to the running time-frequency resource position indicated by base station, user equipment is intercepted by start time of the time-domain resource in the running time-frequency resource position to the frequency domain resource in the running time-frequency resource position.After the preset unlicensed spectrum free time is listened to, user equipment just sends upstream data to base station.It should be noted that, now user equipment carries out start time and frequency domain resource used in data transmission and is distinct from start time and frequency domain resource when user equipment is begun listening for, and the result that user equipment is intercepted is to rely on, the time point and frequency domain resource when the user equipment determines the preset unlicensed spectrum free time are called the specific running time-frequency resource in the preset unlicensed spectrum indicated by the base station.Therefore, it is the specific running time-frequency resource in the preset unlicensed spectrum indicated by base station that user equipment, which carries out upstream data and sends used running time-frequency resource,.
In practice, user equipment can confirm whether the preset unlicensed spectrum is idle according to a variety of methods.For concrete example, user equipment is intercepted after running time-frequency resource position free time and idle lasting preset time, you can confirm that the preset unlicensed spectrum is idle；Wherein, the specific size of the preset time is distinguished it has been specified that good in different agreements.It is preferred that, the preset time is different and different for the priority of business, and service priority is higher, then preset time is shorter.Certainly, the above method is only for example, and is not restricted.
In the present embodiment, in the case where communication system is LTE wireless communication systems or LTE-A wireless communication systems, when dividing access mode when employed, transmitting uplink data can only be carried out in sub-frame of uplink, and the packet that protocol layer is received than larger may cause that transmission can not be completed in sub-frame of uplink.It is preferred, therefore, that being additionally operable to indicate transmitting uplink data duration in instruction received by user equipment, while suitable data packet length is matched in protocol layer, to ensure that user equipment completes data transfer in the transmitting uplink data duration.Wherein, the bandwidth and sub-frame of uplink that the specific transmitting uplink data duration has been configured by base station according to it are calculated, and circular is known technology, be will not be repeated here.
And user equipment can obtain transmitting uplink data duration by reading the Physical Broadcast Channel information of base station, and the data of the user equipment are controlled to send duration according to the transmitting uplink data duration.It should be noted that, the transmitting uplink data duration is to ensure that user equipment completes a time range of data transfer, the data of user equipment send duration and are not necessarily equal to the transmitting uplink data duration, the data of the user equipment send duration and can determined by user equipment oneself, as long as no more than the transmitting uplink data duration.If but value is smaller, user equipment can be caused repeatedly to participate in striving unexpectedly, the wasting of resources is caused；If value is larger, user equipment busy channel overlong time causes to reduce the transmission time of other users equipment in network, therefore user equipment can be adjusted by taking into account the performance of itself and the performance of other users equipment.For example, it is contemplated that to the performance of the user equipment, when MCS is relatively low, the duration that the data of user equipment are sent can be smaller with value；But when MCS is higher, the duration that the data of user equipment are sent can be higher with value.
Certainly, transmitting uplink data duration can not be specified in other base station in wireless communication system, be not restricted herein.
If user equipment falls outside the preset unauthorized frequency language indicated by base station, carrier sense and data transfer are no longer carried out.
In the embodiment of the present invention, intercepted by user equipment oneself in the preset unlicensed spectrum indicated by base station, and oneself decision-making carries out data transmission when preset unlicensed spectrum is idle, without just sending data under the scheduling of base station, so both met after equipment need to be intercepted first in the agreements of ESTI EN 301 893
The protocol specification of data is sent, some blind scheduling that base station is done in the case where not knowing about user equipment interference to user equipment are it also avoid.
In the present embodiment, when listening to the preset unlicensed spectrum free time, user equipment sends data using preset unlicensed spectrum to base station.Preferably, user equipment avoids (Carrier Sense Multiple Access with Collision Avoidance, CSMA/CA) mode or Carrier Sense Multiple Access/collision detection using Carrier Sense Multiple Access/collision（Carrier Sense Multiple Access with Collision
Detection, CSMA/CD) mode using the preset unlicensed spectrum to the base station send upstream data.So, it can reduce the probability that multiple user equipmenies collide, lift the performance of link, it is to avoid and the situation of severe jamming that other users equipment collides and caused.
In the present embodiment, when user equipment listen to the preset unlicensed spectrum it is idle when, user equipment sends data using preset unlicensed spectrum to base station.In practice, the preset unlicensed spectrum is idle not always necessarily.It is therefore preferred that user equipment intercept the unlicensed spectrum it is whether idle after, the data transmission method for uplink of the present embodiment preferably also includes：
If the 103, the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation.If preset unlicensed spectrum is not idle, user equipment carries out back-off operation.Wherein the back-off operation is referred to when the intercepted result of user equipment is not idle for channel, and user equipment needs to carry out repeating to intercept again after waiting for a period of time.So, it can reduce that to occur user equipment intercepted result again be the not idle probability of channel.
The mechanism that user equipment carries out back-off operation has a variety of.For concrete example, if user equipment sends upstream data using the preset unlicensed spectrum using CSMA/CA modes to the base station, user equipment can carry out back-off operation using CSMA/CA mechanism, can so reduce collision probability when multiple user equipmenies strive channel unexpectedly.If user equipment sends upstream data using the preset unlicensed spectrum using CSMA/CD modes to the base station, user equipment can carry out back-off operation using CSMA/CD mechanism.The time granularity that user equipment carries out back-off operation can be 9us multiple, or be the multiple of OFDM symbol length.Certainly, foregoing description is only for example, and is not restricted.
Certainly, in practice, user equipment can also be without back-off operation, and this is not restricted.But back-off operation is carried out when listening to channel busy, running time-frequency resource can be conceded for the transmission of other users equipment, is prepared while can also be seized for next secondary channel.
In the present embodiment, it is preferred that the data transmission method for uplink of the present embodiment also includes：The user equipment is also
Receive the instruction to transmitting uplink data duration from base station.Therefore, it is further preferred that in the step 102 of the present embodiment, after the user equipment intercepts the preset unlicensed spectrum free time, the user equipment also includes before sending data to the base station using the preset unlicensed spectrum：Specifically, user equipment determines the quantity of packet to be sent to user equipment according to the transmitting uplink data duration.Determine after quantity, user equipment controls the quantity for the packet to be sent to be identified quantity.The quantity of user equipment control data bag has a variety of methods.For concrete example, user equipment can using polymerization MPDU, non-polymeric MPDU either non-polymeric MSDU come the quantity of control data bag or can also be using fragment come the quantity of control data bag.The method of the quantity of control data bag is known technology, be will not be repeated here.In this manner it is ensured that the data of user equipment, which send duration, is no more than transmitting uplink data duration.In transmission data procedures, user equipment oneself can determine mobile switching centre（Mobile Switching Center, MSC), can also be adaptive by outer loop link, this is not restricted.
Certainly, in practice, data volume the step that user equipment determines upstream data to be sent always according to the transmission duration can also be omitted.
After the upstream data that user equipment transmission is received in base station, base station can send confirmation to the user equipment, and the wherein confirmation is used to indicate that the base station receives the upstream data.Preferably, in the data transmission method for uplink of the present embodiment, also include after the user equipment sends upstream data using the preset unlicensed spectrum to the base station：The user equipment confirms (Block-Acknowledgement using block, Block-ACK mechanism or normal confirmation (Acknowledgement, ACK) mechanism receives the confirmation from the base station, and the confirmation is used to indicate that the base station receives the upstream data.
In practice, the upstream data of user equipment transmission is received from base station, time delay is generally there are before the confirmation for receiving the upstream data is sent to base station to user equipment, for example in the case of the confirmation being sent on descending sub frame by authorizing the downlink in frequency spectrum or unlicensed spectrum in base station, the regular hour is needed if base station carries out Turbo codings to packet.User equipment receives the confirmation from the base station using Block-ACK mechanism, and user equipment can be avoided to be accomplished by base station feedback confirmation after the completion of transmitting uplink data within short time interval.Certainly, in practice, user equipment can also receive the confirmation from base station using normal ACK mechanism or other mechanism, and this is not restricted.
The data transmission method for uplink in the embodiment of the present invention is described above, below to the embodiment of the present invention
In data receiver method be described, referring to Fig. 2, one embodiment of the data receiver method in the present invention includes：
201st, base station sends to user equipment and indicated, described to indicate for indicating preset unlicensed spectrum；In the present embodiment, the base station is the evolved base station in LTE wireless communication systems or LTE-A wireless communication systems.Corresponding, the user equipment is LTE user equipmenies.Certainly, citing is above are only, base station and user equipment are not limited.
In the present embodiment, unlicensed spectrum refers to the center frequency point frequency spectrum different with the center frequency point of frequency spectrum is authorized.Each base station can only operate in a part of unlicensed spectrum, and the part unlicensed spectrum is to be configured when network is initially built by operator.Base station sends to user equipment and indicated, the instruction is used to indicate the part unlicensed spectrum that the base station is worked, and for convenience of description, the part unlicensed spectrum is called preset unlicensed spectrum herein.Then user equipment finds start time according to the preset unlicensed spectrum and frequency domain resource is intercepted.
The instruction that base station includes unlicensed spectrum to user equipment transmission has for a variety of methods, concrete example, and the subframe being semi-statically configured according to RRC is matched, and base station passes through RACH（Random Access Channel, RACH) difference of the current sub-frame of uplink border of user equipment and the sub-frame boundary of the preset unlicensed spectrum is obtained, and the difference is sent to user equipment.So, user equipment can find the sub-frame boundary of the preset unlicensed spectrum according to the difference.
202nd, the base station receives the upstream data from the user equipment, and the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language；
User equipment can be intercepted after the instruction from base station is received to the preset unlicensed spectrum indicated by the instruction.When user equipment determines that the frequency spectrum of the unauthorized is idle, upstream data is sent to base station using the unlicensed spectrum.
User equipment sends data to base station, and base station is by obtaining user equipment synchronizing information, to carry out data receiver.Certainly, base station can also receive the upstream data from user equipment by other means, and this is not restricted.In practice, there are a variety of methods base station to obtain the synchronizing information of user equipment.For concrete example, base station can obtain the synchronizing information of user equipment by synchronizing signal preamble, or, can also be by obtaining the synchronizing information of the user equipment on the OFDM symbol head or subframe head of the subframe transmitted by user equipment.
In the present embodiment, preset unlicensed spectrum is indicated to user equipment by base station, to allow user equipment
Oneself is intercepted in the preset unlicensed spectrum, and when preset unlicensed spectrum is idle, oneself decision-making carries out data transmission, without just sending data to the scheduling of user equipment by base station, so both meets
Equipment need to first intercept the protocol specification for sending data afterwards in the agreements of ESTI EN 301 893, it also avoid some blind scheduling that base station is done in the case where not knowing about user equipment interference to user equipment.
Preferably, in the present embodiment, also include after receiving the upstream data from the user equipment in base station described in step 202：
203rd, the base station sends confirmation on the preset unlicensed spectrum or on frequency spectrum is authorized to the user equipment, and the confirmation is used to indicate that the base station receives the upstream data.
Receive after data, base station can send the confirmation that data are received for confirmation to user equipment.For concrete example, the confirmation can be ack signal.In practice, base station can be by authorizing the downlink in frequency spectrum or unlicensed spectrum to send the confirmation on descending sub frame.
It is preferred that, medium access control layer instruction is also carried in the descending sub frame（Medium Access Control Index, MAC index), for indicating the user equipment belonging to the packet, and for indicating the transmission position of confirmation.So, the user equipment can receive the confirmation according to the instruction of the MAC index on corresponding time-frequency location.
Certainly, in practice, base station can not also send confirmation to user equipment.For example in broadcast communication, base station can not send confirmation signal.
For ease of understanding, ^ is connect to the present embodiment data transmission method for uplink and data with a practical application scene below：Method enters the brief biography of a deceased person.
Evolution shape base station eNB in LTE wireless communication systems is sent to LTE user equipmenies to be indicated, n and unauthorized frequency domain RB1-RB50 at the time of the instruction is intercepted for instruction user equipment, and the transmission duration t that user equipment is used when sending upstream data.
LTE user equipmenies start to intercept unauthorized frequency domain RB1-RB50 according to eNB instruction in moment n.When LTE user equipmenies listen to channel duration free time more than or equal to 34us, you can confirm that the unauthorized frequency domain is idle, and upstream data is sent to base station using the unauthorized frequency domain using CSMA/CA modes.Meanwhile, the transmission duration t in the instruction that LTE user equipmenies are sent according to base station controls the quantity of transmitted packet, to ensure to send duration used in upstream data no more than transmission duration t.
ENB obtains the synchronizing information of user equipment by synchronizing signal preamble, to be received to the data transmitted by LTE user equipmenies.Receive after data, eNB passes through downlink main carrier to carry or auxiliary load
Ripple sends confirmation ack signal on descending sub frame, wherein MAC index are also carried in the descending sub frame, for indicating that the packet belongs to the LTE user equipmenies, and indicate that eNB is sent to the transmission position of the confirmation information ACK signal of LTE user equipmenies.The LTE user equipmenies receive the ack signal according to the instruction of the MAC index on corresponding time-frequency location.
The data transmission method for uplink and data transmission method for uplink in the embodiment of the present invention are described above, the data sending device in the embodiment of the present invention are described below, referring to Fig. 3, data sending device 300 includes in the embodiment of the present invention：
Receiving module 301, for receiving the instruction from base station, the instruction is used to indicate preset unlicensed spectrum.
Processing module 302, it is whether idle for intercepting the preset unlicensed spectrum by receiving module 301；
Sending module 303, for the processing module listen to the preset unlicensed spectrum it is idle when, send upstream data to the base station using the preset unlicensed spectrum.
Specifically, the receiving module, processing module and sending module can be receiver, processor and transmitter in user terminal respectively.Certainly, citing description is above are only, is not restricted.Wherein the user terminal can be mobile phone, PC, notebook computer, tablet personal computer or other kinds of terminal, not limit herein specifically.
In the embodiment of the present invention, intercepted by user equipment oneself in the preset unlicensed spectrum indicated by base station, and oneself decision-making carries out data transmission when preset unlicensed spectrum is idle, without just sending data under the scheduling of base station, the protocol specification for sending data afterwards need to first be intercepted by so both having met equipment in the agreements of ESTI EN 301 893, it also avoid some blind scheduling that base station is done in the case where not knowing about user equipment interference to user equipment.
It is preferred that, sending module 303 specifically for the processing module 302 listen to the preset unlicensed spectrum it is idle when, upstream data is sent to the base station using the preset unlicensed spectrum using CSMA/CA modes or CSMA/CD modes.
So, it can reduce the probability that multiple user equipmenies collide, lift the performance of link, it is to avoid and the situation of severe jamming that other users equipment collides and caused.
It is preferred that, the processing module 302 is additionally operable to when not idle to the preset unlicensed spectrum, carries out back-off operation.
So, running time-frequency resource can be conceded for the transmission of other users equipment, is prepared while can also be seized for next secondary channel.
Further, it is preferred that, if the sending module 303 avoids mode from sending upstream data to the base station using the preset unlicensed spectrum specifically for listening to the preset unlicensed spectrum free time in the processing module 302 using Carrier Sense Multiple Access/collision；The processing module 302 specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision-avoidance mechanism；Or,
If the sending module 303 specifically for the processing module 302 listen to the preset unlicensed spectrum it is idle when, upstream data is sent to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision detection mode；The processing module 302 specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision detection mechanism.
Data sending device includes in an alternative embodiment of the invention：
Receiving module, for receiving the instruction from base station, the instruction is used to indicate preset unlicensed spectrum；
Processing module, it is whether idle for intercepting the preset unlicensed spectrum by the receiving module；
Sending module, for the processing module listen to the preset unlicensed spectrum it is idle when, send upstream data to the base station using the preset unlicensed spectrum.
In the embodiment of the present invention, the receiving module is additionally operable to receive the instruction to transmitting uplink data duration from base station；The processing module is additionally operable to before the sending module sends data using the preset unlicensed spectrum to the base station, and the data volume of upstream data to be sent is determined according to the transmitting uplink data duration.
In this manner it is ensured that the data of user equipment, which send duration, is no more than the transmitting uplink data duration.Specifically, the receiving module, processing module and sending module can be receiver, processor and transmitter in user terminal respectively.Certainly, citing description is above are only, is not restricted.Wherein the user terminal can be mobile phone, PC, notebook computer, tablet personal computer or other kinds of terminal, not limit herein specifically.
Data sending device includes in an alternative embodiment of the invention：
Receiving module, for receiving the instruction from base station, the instruction is used to indicate preset unlicensed spectrum;
Processing module, it is whether idle for intercepting the preset unlicensed spectrum by the receiving module；
Sending module, for the processing module listen to the preset unlicensed spectrum it is idle when, send upstream data to the base station using the preset unlicensed spectrum.
In the embodiment of the present invention, receiving module is additionally operable to after the sending module sends data using the preset unlicensed spectrum to the base station, confirmation from the base station is received using Block-ACK mechanism or normal ACK mechanism, the confirmation is used to indicate that the base station receives the upstream data.
Specifically, the receiving module, processing module and sending module can be receiver, processor and transmitter in user terminal respectively.Certainly, citing description is above are only, is not restricted.Wherein the user terminal can be mobile phone, PC, notebook computer, tablet personal computer or other kinds of terminal, not limit herein specifically.
The data sending device in the embodiment of the present invention is described above, the data sink in the embodiment of the present invention is described below, referring to Fig. 4, data sink 400 includes in the embodiment of the present invention：
Sending module 401, is indicated for being sent to user equipment, described to indicate for indicating preset unlicensed spectrum；
Receiving module 402, for receiving the upstream data from the user equipment, the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language.
Specifically, the sending module and receiving module can be the transmitters and receivers in base station respectively.Certainly, citing description is above are only, is not restricted.
In the present embodiment, preset unlicensed spectrum is indicated to user equipment by base station, to allow user equipment oneself to be intercepted in the preset unlicensed spectrum, and oneself decision-making carries out data transmission when preset unlicensed spectrum is idle, without just sending data to the scheduling of user equipment by base station, the protocol specification for sending data afterwards need to first be intercepted by so both having met equipment in the agreements of ESTI EN 301 893, it also avoid some blind scheduling that base station is done in the case where not knowing about user equipment interference to user equipment.
It is preferred that, in the present embodiment, sending module 401, which is additionally operable to receive in the receiving module, comes from institute
After the upstream data for stating user equipment, confirmation is sent to the user equipment on the preset unlicensed spectrum or on frequency spectrum is authorized, the confirmation is used to indicate that the base station receives the upstream data.
Further, it is preferred that, the sending module 401 by descending sub frame on the preset unlicensed spectrum or to the user equipment on frequency spectrum is authorized specifically for sending confirmation, wherein described descending sub frame carries MAC index, the transmission position for indicating the confirmation.
So, the user equipment can receive the confirmation according to the instruction of the MAC index on corresponding time-frequency location.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system, apparatus, and unit of foregoing description may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, shown or discussed coupling each other or direct close or communication connection can be that by some interfaces, indirect of device or unit closes or communicated to connect, and can be electrical, machinery or other forms.The part that unit is shown 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 selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is 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 the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, part that technical scheme substantially contributes to prior art in other words or the technical scheme it is complete
Portion or part can be embodied in the form of software product, and the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (1)
- Claim1st, a kind of data transmission method for uplink, it is characterised in that including：User equipment receives the instruction from base station, and the instruction is used to indicate preset unlicensed spectrum；The user equipment intercepts whether the preset unlicensed spectrum is idle, if the preset unlicensed spectrum is idle, the user equipment sends upstream data using the preset unlicensed spectrum to the base station.2nd, data transmission method for uplink according to claim 1, it is characterised in that the user equipment sends upstream data to the base station using the preset unlicensed spectrum and specifically included：The user equipment avoids mode or Carrier Sense Multiple Access/collision detection mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision.3rd, data transmission method for uplink according to claim 1 or 2, it is characterised in that if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation.4th, data transmission method for uplink according to claim 3, it is characterized in that, if the user equipment avoids mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision, if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation using Carrier Sense Multiple Access/collision-avoidance mechanism；Or,If the user equipment sends upstream data using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision detection mode to the base station, if the preset unlicensed spectrum is not idle, the user equipment carries out back-off operation using Carrier Sense Multiple Access/collision detection mechanism.5th, data transmission method for uplink according to claim 1, it is characterised in that methods described also includes：The user equipment also receives the instruction to transmitting uplink data duration from base station；The user equipment also includes before sending data to the base station using the preset unlicensed spectrum：The user equipment determines the data volume of upstream data to be sent according to the transmitting uplink data duration.6th, data transmission method for uplink according to claim 1, it is characterised in that the user equipment also includes after sending upstream data to the base station using the preset unlicensed spectrum：The user equipment is received from the base station using block affirmation mechanism or normal affirmation mechanism Confirmation, the confirmation is used to indicate that the base station receives the upstream data.7th, a kind of data sending device, it is characterised in that including：Receiving module, for receiving the instruction from base station, the instruction is used to indicate preset unlicensed spectrum；Processing module, it is whether idle for intercepting the preset unlicensed spectrum by the receiving module；Sending module, for the processing module listen to the preset unlicensed spectrum it is idle when, send upstream data to the base station using the preset unlicensed spectrum.8th, data sending device according to claim 7, it is characterised in thatThe sending module specifically for the processing module listen to the preset unlicensed spectrum it is idle when, avoid mode or Carrier Sense Multiple Access/collision detection mode from sending upstream data to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision.9th, the data sending device according to claim 7 or 8, it is characterised in thatThe processing module be additionally operable to listen to the preset unlicensed spectrum it is not idle when, carry out back-off operation.10th, data sending device according to claim 9, it is characterised in thatIf the sending module avoids mode from sending upstream data to the base station using the preset unlicensed spectrum specifically for listening to the preset unlicensed spectrum free time in the processing module using Carrier Sense Multiple Access/collision；The processing module specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision-avoidance mechanism；Or, if the sending module specifically for the processing module listen to the preset unlicensed spectrum it is idle when, upstream data is sent to the base station using the preset unlicensed spectrum using Carrier Sense Multiple Access/collision detection mode；The processing module specifically for listen to the preset unlicensed spectrum it is not idle when, back-off operation is carried out using Carrier Sense Multiple Access/collision detection mechanism.11st, data sending device according to claim 7, it is characterised in thatThe receiving module is additionally operable to receive the instruction to transmitting uplink data duration from base station；The processing module is additionally operable to before the sending module sends data using the preset unlicensed spectrum to the base station, and the data volume of upstream data to be sent is determined according to the transmitting uplink data duration. 12nd, data sending device according to claim 7, it is characterised in thatThe receiving module is additionally operable to after the sending module sends data using the preset unlicensed spectrum to the base station, confirmation from the base station is received using block affirmation mechanism or normal affirmation mechanism, the confirmation is used to indicate that the base station receives the upstream data.13rd, a kind of data receiver method, it is characterised in that including：Base station sends to user equipment and indicated, described to indicate for indicating preset unlicensed spectrum；The base station receives the upstream data from the user equipment, and the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language.14th, data receiver method according to claim 13, it is characterised in that the base station also includes after receiving the upstream data from the user equipment：The base station sends confirmation on the preset unlicensed spectrum or on frequency spectrum is authorized to the user equipment, and the confirmation is used to indicate that the base station receives the upstream data.15th, data receiver method according to claim 14, it is characterised in that the base station sends confirmation to the user equipment on the preset unlicensed spectrum or on frequency spectrum is authorized and specifically included：The base station sends confirmation by descending sub frame on the preset unlicensed spectrum or to the user equipment on frequency spectrum is authorized, wherein described descending sub frame carries medium access control layer instruction, the transmission position for indicating the confirmation.16th, a kind of data sink, it is characterised in that including：Sending module, is indicated for being sent to user equipment, described to indicate for indicating preset unlicensed spectrum；Receiving module, for receiving the upstream data from the user equipment, the upstream data is that the user equipment is sent when it is determined that the unlicensed spectrum is idle using the unauthorized frequency language.17th, data sink according to claim 16, it is characterised in thatThe sending module is additionally operable to after the receiving module receives the upstream data from the user equipment, confirmation is sent to the user equipment on the preset unlicensed spectrum or on frequency spectrum is authorized, the confirmation is used to indicate that the base station receives the upstream data.18th, data sink according to claim 17, it is characterised in thatThe sending module specifically for by descending sub frame on the preset unlicensed spectrum or Authorize to user equipment transmission confirmation on frequency spectrum, wherein the descending sub frame carries medium access control layer instruction, the transmission position for indicating the confirmation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/079863 WO2015188380A1 (en) | 2014-06-13 | 2014-06-13 | Data sending method and device, and data receiving method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105379384A true CN105379384A (en) | 2016-03-02 |
| CN105379384B CN105379384B (en) | 2019-11-29 |
Family
ID=54832753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480036716.5A Active CN105379384B (en) | 2014-06-13 | 2014-06-13 | Data transmission method for uplink and device, data receiver method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105379384B (en) |
| WO (1) | WO2015188380A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699078A (en) * | 2017-10-20 | 2019-04-30 | 维沃移动通信有限公司 | Information transferring method, the network equipment and terminal under unauthorized frequency range |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753565A (en) * | 2004-09-22 | 2006-03-29 | 株式会社Ntt都科摩 | Mobile communication system, frequency band allocation device and method |
| CN1881828A (en) * | 2005-05-06 | 2006-12-20 | 戴尔产品有限公司 | Systems and methods for RF spectrum management |
| CN101154991A (en) * | 2006-09-29 | 2008-04-02 | 中兴通讯股份有限公司 | Frequency spectrum use method and device |
| US20110299511A1 (en) * | 2010-06-08 | 2011-12-08 | Qwest Communications International Inc. | Method and system of implementing a radio network in unlicensed spectrum |
| CN102812772A (en) * | 2010-03-17 | 2012-12-05 | 高通股份有限公司 | Method and apparatus for establishing and maintaining peer-to-peer (p2p) communication on unlicensed spectrum |
| CN103370896A (en) * | 2010-12-06 | 2013-10-23 | 交互数字专利控股公司 | Method to enable wireless operation in license exempt spectrum |
-
2014
- 2014-06-13 WO PCT/CN2014/079863 patent/WO2015188380A1/en active Application Filing
- 2014-06-13 CN CN201480036716.5A patent/CN105379384B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753565A (en) * | 2004-09-22 | 2006-03-29 | 株式会社Ntt都科摩 | Mobile communication system, frequency band allocation device and method |
| CN1881828A (en) * | 2005-05-06 | 2006-12-20 | 戴尔产品有限公司 | Systems and methods for RF spectrum management |
| CN101154991A (en) * | 2006-09-29 | 2008-04-02 | 中兴通讯股份有限公司 | Frequency spectrum use method and device |
| CN102812772A (en) * | 2010-03-17 | 2012-12-05 | 高通股份有限公司 | Method and apparatus for establishing and maintaining peer-to-peer (p2p) communication on unlicensed spectrum |
| US20110299511A1 (en) * | 2010-06-08 | 2011-12-08 | Qwest Communications International Inc. | Method and system of implementing a radio network in unlicensed spectrum |
| CN103370896A (en) * | 2010-12-06 | 2013-10-23 | 交互数字专利控股公司 | Method to enable wireless operation in license exempt spectrum |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699078A (en) * | 2017-10-20 | 2019-04-30 | 维沃移动通信有限公司 | Information transferring method, the network equipment and terminal under unauthorized frequency range |
| CN109699078B (en) * | 2017-10-20 | 2021-10-01 | 维沃移动通信有限公司 | Information transmission method under unlicensed frequency band, network device and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105379384B (en) | 2019-11-29 |
| WO2015188380A1 (en) | 2015-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3562221B1 (en) | Power allocation method and apparatus for uplink channel | |
| CN104009820B (en) | For transmitting Downlink Control Information DCI method and its device | |
| CN103069732B (en) | The method and apparatus of allocating power balance information in the mobile communication system supporting carrier aggregation | |
| EP3402086B1 (en) | Method for information transmission, base station, and user equipment | |
| CN110574479B (en) | Random access message sending method, device and storage medium | |
| WO2018188652A1 (en) | Random access and response method, terminal device and network device | |
| CN105050189A (en) | Wireless resource scheduling method and relevant equipment | |
| CN108292980A (en) | The method and apparatus of business transmission | |
| CN104540164A (en) | Data transmission method, data transmission device and data transmission system | |
| WO2014067140A1 (en) | Information transmission method, user equipment and base station | |
| WO2020191588A1 (en) | Method and apparatus for channel detection, and storage medium | |
| EP3962225A1 (en) | Data transmission method and apparatus | |
| WO2019062838A1 (en) | Method and device for data transmission | |
| CN104303578A (en) | Method, Apparatus And System For Processing Data Transmission | |
| US11469852B2 (en) | Signal sending and receiving method, and apparatus | |
| CN106664689A (en) | Transmission method and device for physical downlink control channel | |
| TWI607635B (en) | Device and method of handling harq operation for unlicensed band | |
| CN115865295B (en) | Information processing method and device | |
| CN104641586A (en) | Method for automatic retransmission, user equipment, and base station | |
| CN113950865A (en) | Information transmission method and related product | |
| CN104025649A (en) | Method, User Equipment, And Base Station For Controlling Uplink Carrier Aggregation | |
| CN105379384A (en) | Data sending method and device, and data receiving method and device | |
| CN101888700B (en) | Method and base station for configuring parameter | |
| CN105264942B (en) | Data transmission transmitting terminal equipment, receiving terminal equipment and method | |
| CN118235476A (en) | Power distribution method, device, equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |