CN107005995A

CN107005995A - A kind of method and device of data communication

Info

Publication number: CN107005995A
Application number: CN201580066566.7A
Authority: CN
Inventors: 权威; 张戬; 苗金华; 李秉肇; 唐珣; 杨晓东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-07-28
Filing date: 2015-07-28
Publication date: 2017-08-01
Also published as: WO2017015855A1

Abstract

A kind of method and device of data communication：Network entity determines TTI configuration parameters, and TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；Determine that a TTI time parameter is used as target TTI time parameters from TTI time parameters；Sent using target TTI time parameters or receive data, a TTI time parameter is determined in this scenario, in TTI time parameters as target TTI time parameters, the number of TTI time parameters is more than or equal to 2；Network entity sends or received data using target TTI time parameters, so, it is no longer fixed to send or receive the TTI time parameters used during data, can with application scenarios difference and change, therefore solve due to flexibility it is poor caused by the wasting of resources is more serious, physical control channel expense is larger the problems such as.

Description

A kind of method and device of data communication

Technical field

The present invention relates to communication technical field, more particularly to a kind of method and device of data communication.

Background technology

With the development of the communication technology, the equipment total amount of global mobile communication network connection is up to hundred billion scales.Expect the year two thousand twenty, global mobile terminal (being free of internet of things equipment) quantity will more than 10,000,000,000, wherein, China will be more than 2,000,000,000, with the increase of terminal quantity, and the propagation delay time in reduction data transmission procedure turns into urgent problem.

At present, TTI (the Transmission Time Interval that terminal is used in transmission data procedures, Transmission Time Interval) it is fixed as 1ms, in order to reduce propagation delay time, short TTI technologies are applied and given birth to, short TTI technologies are exactly that TTI length is set smaller than into 1ms in fact, and in this technology, the TTI used in data transmission procedure is still fixed.

In actual applications, different channels environment, or different QoS (Quality of Service, service quality) is when requiring, the TTI used during transmission data length is also different, but in the prior art, no matter TTI length is 1ms, 0.5ms, and the TTI length employed in data transmission procedure is all changeless, there is the poor defect of flexibility, and then cause the problems such as wasting of resources is more serious, physical control channel expense is larger.

For example, when TTI length is 1ms, can be with as data waiting for transmission only need to 0.5 Physical Resource Block if, but if TTI length is 1ms, the data are now transmitted using 1 Physical Resource Block, so as to cause 0.5 Physical Resource Block to waste.

In another example, when TTI length is 0.5ms, such as data waiting for transmission are big data, now transmit the data using 0.5ms TTI, there is the larger defect of physical control channel expense.

In summary, the TTI used in current communication process length will not change with the difference of application scenarios, exist due to flexibility it is poor caused by the defect such as the wasting of resources is more serious, physical control channel expense is larger.

The content of the invention

The embodiments of the invention provide a kind of method and device of data communication, for solve to presently, there are due to flexibility it is poor caused by the wasting of resources is more serious, physical control channel expense is larger defect.

First aspect there is provided a kind of network entity, including：

Determining unit, for determining Transmission Time Interval TTI configuration parameters, the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The determining unit is additionally operable to, and determines that a TTI time parameter is used as target TTI time parameters from the TTI time parameters；

Communication unit, for data to be sent or received using the target TTI time parameters.

With reference in a first aspect, in the first possible implementation, the network entity is base station or user equipment (UE).

With reference in a first aspect, or first aspect the first possible implementation, in second of possible implementation, the network entity be UE when, when the determining unit determines TTI configuration parameters, be specially：

Receive the TTI configuration parameters that network side equipment is sent.

With reference to first aspect, or the first to second possible implementation of first aspect, in the third possible implementation, the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.

With reference in a first aspect, or first aspect first to the third possible implementation, in the 4th kind of possible implementation, when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

The first mapping ruler and the first traffic order are determined, first mapping ruler includes the corresponding relation of scheduling identification and the TTI time parameters；The target TTI time parameters are determined according to first traffic order and first mapping relations.

With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation, When the determining unit determines the target TTI time parameters according to first traffic order and first mapping relations, it is specially：

The scheduling identification traversal included using first mapping ruler descrambles first traffic order；And will successfully descramble TTI time parameters corresponding to the scheduling identification of first traffic order, it is used as the target TTI time parameters.

With reference in a first aspect, or first aspect first to the third possible implementation, in the 6th kind of possible implementation, when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

It is determined that the first traffic order of TTI time parameters is carried, and the TTI time parameters that first traffic order is carried, it is used as the target TTI time parameters.

With reference in a first aspect, or first aspect first to the third possible implementation, in the 7th kind of possible implementation, when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

It is determined that carrying the first traffic order of bit bit identification corresponding with TTI time parameters；Will TTI time parameters corresponding with the bit bit identification, be used as the target TTI time parameters.

With reference to the 4th to the 7th kind of possible implementation of first aspect, in the 8th kind of possible implementation, first traffic order indicates the first physical transfer resource；

When the communication unit is sent using the target TTI time parameters or receives data, it is specially：

First physical transfer resource is determined according to first traffic order；The data are sent or receive using the target TTI time parameters and the first physical transfer resource.

With reference in a first aspect, or first aspect first to the 8th kind of possible implementation, in the 9th kind of possible implementation, the communication unit using the target TTI time parameters send or receive data when, be specially：

The data are sent or received using target TTI time parameters described at least two.

With reference in a first aspect, or first aspect first to the 9th kind of possible implementation, in the tenth kind of possible implementation, the communication unit is additionally operable to：

Send or receive hybrid automatic repeat-request HARQ feedback information.

With reference to the tenth kind of possible implementation of first aspect, in a kind of the tenth possible implementation, the determining unit is additionally operable to:

The second mapping ruler is determined, second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；Determined according to second mapping ruler and the HARQ feedback TTI time parameters corresponding to the target TTI time parameters.

With reference to a kind of the tenth possible implementation of first aspect, in the 12nd kind of possible implementation, when the communication unit sends or receives HARQ feedback information, it is specially：

Using the HARQ feedback TTI time parameters determined, HARQ feedback information is sent or received.

With reference to the tenth kind of possible implementation of first aspect, in the 13rd kind of possible implementation, the determining unit is additionally operable to：

It is determined that carrying HARQ feedback TTI the first traffic order.

With reference to the 13rd kind of possible implementation of first aspect, in the 14th kind of possible implementation, first traffic order indicates the second physical transfer resource；

When the communication unit sends or receives HARQ feedback information, it is specially：

The second physical transfer resource is determined according to first traffic order；The HARQ feedback TTI time parameters carried using first traffic order, and the second physical transfer resource, send or receive HARQ feedback information.

With reference in a first aspect, or first aspect first to the 14th kind of possible implementation, in the 15th kind of possible implementation, the communication unit is additionally operable to：

When determining the data transmission fails, the data are retransmitted.

With reference to the 15th kind of possible implementation of first aspect, in the 16th kind of possible implementation, the determining unit is additionally operable to：

The 3rd mapping ruler is determined, the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；And determined from the 3rd mapping ruler and the RTT time parameters corresponding to the target TTI time parameters.

With reference to the 16th kind of possible implementation of first aspect, in the 17th kind of possible implementation, when the communication unit retransmits the data, it is specially：

According to the RTT time parameters of determination, the data are retransmitted.

With reference to the 15th kind of possible implementation of first aspect, in the 18th kind of possible implementation, the determining unit is additionally operable to：

It is determined that carrying the first traffic order of RTT time parameters.

With reference to the 18th kind of possible implementation of first aspect, in the 19th kind of possible implementation, first traffic order indicates the 3rd physical resource；

When the communication unit retransmits the data, it is specially：

The RTT time parameters carried according to first traffic order, and the 3rd physical resource retransmit the data.

With reference to the 16th or the 18th kind of possible implementation of first aspect, in the 20th kind of possible implementation, the determining unit is additionally operable to：

With after RTT time parameters described in the time interval of transmission data, receiving the second traffic order, second traffic order indicates the 4th physical transfer resource；

When the communication unit retransmits the data, it is specially：

4th physical transfer resource is determined according to second traffic order；Using the 4th physical transfer resource, the data are retransmitted.

With reference to the 20th kind of possible implementation of first aspect, in a kind of the 20th possible implementation, when communication unit retransmits the data, it is specially：

The scheduling identification traversal included using first mapping ruler descrambles second traffic order；The TTI time parameters corresponding to the scheduling identification of second traffic order will successfully be descrambled, be used as the re-transmission TTI time parameters；The data are retransmitted using the re-transmission TTI time parameters.

With reference to a kind of the 15th to the 20th possible implementation of first aspect, in the 22nd kind of possible implementation, the determining unit is additionally operable to：

The 4th mapping ruler is determined, the 4th mapping ruler includes the corresponding relation of TTI time parameters and number of retransmissions；Determined from the 4th mapping ruler and the number of retransmissions corresponding to the target TTI time parameters；It is determined that for the data, number of retransmissions is less than the number of retransmissions determined.

With reference in a first aspect, or first aspect first to the 22nd kind of possible implementation, In 23rd kind of possible implementation, the determining unit is additionally operable to：

The 5th mapping ruler is determined, the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；Determined from the 5th mapping ruler and the bearer types corresponding to the target TTI time parameters；Determine that the transmission or the data received belong to the bearer types determined.

Second aspect there is provided a kind of base station, including：

Transmitting element, for the TTI configuration parameters to be sent into user equipment (UE).

With reference to second aspect, in the first possible implementation, the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.

With reference to the first possible implementation of second aspect, or second aspect, in second of possible implementation, the transmitting element is additionally operable to：

The first traffic order is sent to the UE.

With reference to second of possible implementation of second aspect, in the third possible implementation, first traffic order carries TTI time parameters, or bit bit identification corresponding with TTI time parameters；

First traffic order indicates the first physical transfer resource.

With reference to second aspect second to the third possible implementation, in the 4th kind of possible implementation, first traffic order carries HARQ feedback TTI；

First traffic order indicates the second physical transfer resource.

With reference to second to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, first traffic order carries two-way time RTT time parameter；

First traffic order indicates the 3rd physical resource.

With reference to first to the 5th kind of possible implementation of second aspect, or second aspect, in the 6th kind of possible implementation, the transmitting element is additionally operable to：

The second traffic order is sent to the UE, second traffic order indicates the 4th physical transfer resource.

The third aspect there is provided a kind of method of data communication, including：

Network entity determines Transmission Time Interval TTI configuration parameters, and the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The network entity determines that a TTI time parameter is used as target TTI time parameters from the TTI time parameters；

The network entity sends or received data using the target TTI time parameters.

With reference to the third aspect, in the first possible implementation, the network entity is base station or user equipment (UE).

With reference to the first possible implementation of the third aspect, or the third aspect, in second of possible implementation, when the network entity is UE, the network entity determines TTI configuration parameters, including：

The network entity receives the TTI configuration parameters that network side equipment is sent.

With reference to the third aspect, or the first to second possible implementation of the third aspect, in the third possible implementation, the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.

With reference to the third aspect, or the third aspect first to the third possible implementation, in the 4th kind of possible implementation, network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines the first mapping ruler and the first traffic order, and first mapping ruler includes the corresponding relation of scheduling identification and the TTI time parameters；

The network entity determines the target TTI time parameters according to first traffic order and first mapping relations.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation, the network entity determines the target TTI according to first traffic order and first mapping relations Time parameter, including：

The scheduling identification traversal that the network entity is included using first mapping ruler descrambles first traffic order；

The network entity will successfully descramble TTI time parameters corresponding to the scheduling identification of first traffic order, be used as the target TTI time parameters.

With reference to the third aspect, or the third aspect first to the third possible implementation, in the 6th kind of possible implementation, network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines to carry the first traffic order of TTI time parameters；

The TTI time parameters that the network entity carries first traffic order, are used as the target TTI time parameters.

With reference to the third aspect, or the third aspect first to the third possible implementation, in the 7th kind of possible implementation, network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines to carry the first traffic order of bit bit identification corresponding with TTI time parameters；

The network entity will TTI time parameters corresponding with the bit bit identification, be used as the target TTI time parameters.

With reference to the 4th to the 7th kind of possible implementation of the third aspect, in the 8th kind of possible implementation, first traffic order indicates the first physical transfer resource；

The network entity sends or received data using the target TTI time parameters, including：

The network entity determines the first physical transfer resource according to first traffic order；

The network entity sends or received the data using the target TTI time parameters and the first physical transfer resource.

With reference to first to the 8th kind of possible implementation of the third aspect, or the third aspect, in the 9th kind of possible implementation, the network entity sends or received data using the target TTI time parameters, including：

The network entity uses target TTI time parameters described at least two to send or receive the data.

With reference to first to the 9th kind of possible implementation of the third aspect, or the third aspect, in the tenth kind of possible implementation, the network entity is received using the target TTI time parameters after data, in addition to：

The network entity sends hybrid automatic repeat-request HARQ feedback information；

The network entity is sent using the target TTI time parameters after data, in addition to：

The network entity receives HARQ feedback information.

With reference to the tenth kind of possible implementation of the third aspect, in a kind of the tenth possible implementation, the network entity is sent or received before HARQ feedback information, in addition to：

The network entity determines the second mapping ruler, and second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；

The network entity is determined and the HARQ feedback TTI time parameters corresponding to the target TTI time parameters according to second mapping ruler.

With reference to a kind of the tenth possible implementation of the third aspect, in the 12nd kind of possible implementation, the network entity sends HARQ feedback information, including：

The network entity sends HARQ feedback information using the HARQ feedback TTI time parameters determined；

The network entity receives HARQ feedback information, including：

The network entity receives HARQ feedback information using the HARQ feedback TTI time parameters determined.

With reference to the tenth kind of possible implementation of the third aspect, in the 13rd kind of possible implementation, the network entity is sent or received before HARQ feedback information, in addition to：

The network entity determines to carry HARQ feedback TTI the first traffic order.

With reference to the 13rd kind of possible implementation of the third aspect, in the 14th kind of possible implementation, first traffic order indicates the second physical transfer resource；

The network entity sends HARQ feedback information, including：

The network entity determines the second physical transfer resource according to first traffic order；

The network entity uses the HARQ feedback TTI time parameters that first traffic order is carried, and the second physical transfer resource to send HARQ feedback information；

The network entity receives HARQ feedback information, including：

The network entity uses the HARQ feedback TTI time parameters that first traffic order is carried, and the second physical transfer resource to receive HARQ feedback information.

With reference to first to the 14th kind of possible implementation of the third aspect, or the third aspect, in the 15th kind of possible implementation, the network entity is sent or received using the target TTI time parameters after data, in addition to：

When the network entity determines the data transmission fails, the data are retransmitted.

With reference to the 15th kind of possible implementation of the third aspect, in the 16th kind of possible implementation, the network entity is retransmitted before the data, in addition to：

The network entity determines the 3rd mapping ruler, and the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；

The network entity is determined and the RTT time parameters corresponding to the target TTI time parameters from the 3rd mapping ruler.

With reference to the 16th kind of possible implementation of the third aspect, in the 17th kind of possible implementation, the network entity retransmits the data, including：

The network entity retransmits the data according to the RTT time parameters of determination.

With reference to the 15th kind of possible implementation of the third aspect, in the 18th kind of possible implementation, the network entity is retransmitted before the data, in addition to：

The network entity determines to carry the first traffic order of RTT time parameters.

With reference to the 18th kind of possible implementation of the third aspect, in the 19th kind of possible implementation, first traffic order indicates the 3rd physical resource；

The network entity retransmits the data, including：

The RTT time parameters that the network entity is carried according to first traffic order, and the described 3rd Physical resource retransmits the data.

With reference to the 15th kind of possible implementation of the third aspect, in the 20th kind of possible implementation, the network entity is retransmitted before the data, in addition to：

When the network entity retransmits the data, it is specially：

With reference to the 20th kind of possible implementation of the third aspect, in a kind of the 20th possible implementation, the network entity retransmits the data, including：

The scheduling identification traversal that the network entity is included using first mapping ruler descrambles second traffic order；

The network entity will successfully descramble TTI time parameters corresponding to the scheduling identification of second traffic order, is used as and retransmits TTI time parameters；

The network entity retransmits the data using the re-transmission TTI time parameters.

With reference to a kind of the 15th to the 20th possible implementation of the third aspect, in the 22nd kind of possible implementation, the network entity is retransmitted before the data, in addition to：

The network entity determines the 4th mapping ruler, and the 4th mapping ruler includes the corresponding relation of TTI time parameters and number of retransmissions；

The network entity is determined and the number of retransmissions corresponding to the target TTI time parameters from the 4th mapping ruler；

The network entity determines that number of retransmissions is less than the number of retransmissions determined for the data.

With reference to first to the 22nd kind of possible implementation of the third aspect, and the third aspect, in the 23rd kind of possible implementation, the network entity is sent or received using the target TTI time parameters before data, in addition to：

The network entity determines the 5th mapping ruler, and the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；

The network entity is determined and the bearer types corresponding to the target TTI time parameters from the 5th mapping ruler；

The network entity determines that the transmission or the data received belong to the bearer types determined.

Fourth aspect there is provided a kind of method of data communication, including：

Base station determines Transmission Time Interval TTI configuration parameters, and the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The TTI configuration parameters are sent to user equipment (UE) by the base station.

With reference to fourth aspect, in the first possible implementation, the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.

With reference to the first possible implementation of fourth aspect, or fourth aspect, in second of possible implementation, methods described also includes：

The base station sends the first traffic order to the UE.

With reference to second of possible implementation of fourth aspect, in the third possible implementation, first traffic order carries TTI time parameters, or bit bit identification corresponding with TTI time parameters；

First traffic order indicates the first physical transfer resource.

With reference to fourth aspect second to the third possible implementation, in the 4th kind of possible implementation, first traffic order carries HARQ feedback TTI；

First traffic order indicates the second physical transfer resource.

With reference to second to the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation, first traffic order carries two-way time RTT time parameter；

First traffic order indicates the 3rd physical resource.

With reference to first to the 5th kind of possible implementation of fourth aspect, or fourth aspect, in the 6th kind of possible implementation, methods described also includes：

The base station sends the second traffic order to the UE, and second traffic order indicates the 4th physics Transfer resource.

There is provided a kind of system of data communication in terms of 5th, including：

Such as the third aspect, or the network entity for user equipment described in first to the 23rd kind of possible implementation of the third aspect, and such as fourth aspect, or the base station described in first to the 6th kind of possible implementation of fourth aspect.

A kind of method of data communication is proposed in the embodiment of the present invention：Network entity determines Transmission Time Interval TTI configuration parameters, and TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；Network entity determines a TTI time parameter as target TTI time parameters from TTI time parameters；Network entity is sent using target TTI time parameters or receives data, in this scenario, a TTI time parameter is determined in TTI time parameters as target TTI time parameters, the number of TTI time parameters is more than or equal to 2；Network entity sends or received data using target TTI time parameters, so, it is no longer fixed to send or receive the TTI time parameters used during data, it can be changed with the difference of application scenarios, therefore the poor defect of flexibility is solved, and then the problems such as wasting of resources is more serious, physical control channel expense is larger can be avoided.

Brief description of the drawings

Figure 1A is a kind of schematic diagram of network entity provided in an embodiment of the present invention；

Figure 1B is another schematic diagram of network entity provided in an embodiment of the present invention

Fig. 2A is a kind of schematic diagram of base station provided in an embodiment of the present invention；

Fig. 2 B are another schematic diagram of base station provided in an embodiment of the present invention；

Fig. 3 is the system of data communication provided in an embodiment of the present invention；

Fig. 4 A are a kind of flow chart of data communication provided in an embodiment of the present invention；

Fig. 4 B are the transmission schematic diagram of data communication provided in an embodiment of the present invention；

Fig. 5 is another flow chart of data communication provided in an embodiment of the present invention.

Embodiment

In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The effect sent using different TTI time parameters or reception data may be brought is briefly described below.

In actual applications, when being sent using different TTI time parameters or received data, power overhead and resource overhead are all different.For example, data are sent or received using the larger TTI time parameters of indicated time interval, power overhead is smaller, under the scene of power limited, can be sent or be received data using the larger TTI time parameters of indicated time interval to ensure the reliability of transmission；It is to be sent or receive data it is smaller when, when sending or receive according to the larger TTI time parameters of indicated time interval, can there is a situation where the wasting of resources, in order to avoid the wasting of resources, for the less this scene of data that is to be sent or receiving, data can be sent or received using the indicated less TTI time parameters of time interval.For no application scenarios, data are sent or received using different TTI time parameters, can be reached and be improved the reliability of transmission, avoid wasting of resources and other effects.

For example, there are the two TTI time parameters of 0.5ms and 1ms, when 1ms and 0.5ms transmission identical data are respectively adopted, the power overhead during data is sent using 1ms, the power overhead during data is sent less than use 0.5ms, therefore, when transmission power is by limited time, data can be sent or received using the larger TTI time parameters of indicated time interval, improve the success rate that data are sent, it is ensured that the reliability of data transfer.

In another example, when sending small data using the larger TTI time parameters of indicated time interval, resource overhead can be than larger, there is a situation where the wasting of resources, can be with if data to be sent only need to 0.5 Physical Resource Block, if using 1ms TTI time parameters when, data will be sent using 1 Physical Resource Block, and waste 0.5 Physical Resource Block.

In another example, when time interval indicated by TTI time parameters is smaller, physical control channel expense may be than larger, the pilot signal ratio needed is bigger, physical resource utilization rate can be influenceed, therefore, when sending big data, physical control channel expense can be reduced using the larger TTI time parameters of indicated time interval, the utilization ratio of physical resource is lifted.

In another example, when time interval indicated by TTI time parameters is different, time delay when sending or receive data is different, when time interval indicated by TTI time parameters is larger, time delay is larger, the business stricter to delay requirement, preferentially can send or receive data using the indicated less TTI time parameters of time interval.

The preferred embodiment of the present invention is described in detail with reference to Figure of description, it should be understood that, preferred embodiment described herein is merely to illustrate and explain the present invention, it is not intended to limit the present invention, and in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.

Refering to shown in Figure 1A, the embodiment of the present invention provides a kind of network entity, and the network entity includes determining unit 10, communication unit 11, wherein：

Determining unit 10, for determining Transmission Time Interval TTI configuration parameters, TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Determining unit 10 is additionally operable to, and determines that a TTI time parameter is used as target TTI time parameters from TTI time parameters；

Communication unit 11, for data to be sent or received using target TTI time parameters.

In the embodiment of the present invention, optionally, network entity is base station or UE (User Equipment, user equipment), wherein, base station can be BS (Base Station, base station), or eNode B (Evolved Node B, evolved base station).

In the embodiment of the present invention, optionally, when network entity is UE, when determining unit 10 determines TTI configuration parameters, it is specially：

Receive the TTI configuration parameters that network side equipment is sent.

In the embodiment of the present invention, optionally, TTI time parameters are in units of millisecond ms, or with an OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol institute The time of occupancy, or in units of the number of OFDM symbol.

In the embodiment of the present invention, optionally, when determining unit 10 determines a TTI time parameter as target TTI time parameters from TTI time parameters, it is specially：

The first mapping ruler and the first traffic order are determined, the first mapping ruler includes the corresponding relation of scheduling identification and TTI time parameters；Target TTI time parameters are determined according to the first traffic order and the first mapping relations.

In the embodiment of the present invention, optionally, when determining unit 10 determines target TTI time parameters according to the first traffic order and the first mapping relations, it is specially：

Scheduling identification traversal the first traffic order of descrambling included using the first mapping ruler；And will successfully descramble TTI time parameters corresponding to the scheduling identification of the first traffic order, it is used as target TTI time parameters.

It is determined that the first traffic order of TTI time parameters is carried, and the TTI time parameters that the first traffic order is carried, it is used as target TTI time parameters.

It is determined that carrying the first traffic order of bit bit identification corresponding with TTI time parameters；Will TTI time parameters corresponding with bit bit identification, be used as target TTI time parameters.

In the embodiment of the present invention, optionally, the first traffic order indicates the first physical transfer resource；

Now, when communication unit 11 is sent using target TTI time parameters or receives data, it is specially：

First physical transfer resource is determined according to the first traffic order；Data are sent or received using target TTI time parameters and the first physical transfer resource.

In the embodiment of the present invention, optionally, when communication unit 11 is sent using target TTI time parameters or receives data, it is specially：

Data are sent or received using at least two target TTI time parameters.

In the embodiment of the present invention, further, communication unit 11 is additionally operable to：

Send or receive HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request) feedback information.

In the embodiment of the present invention, further, determining unit 10 is additionally operable to:

The second mapping ruler is determined, the second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；Determined according to the second mapping ruler and the HARQ feedback TTI time parameters corresponding to target TTI time parameters.

In the embodiment of the present invention, optionally, when communication unit 11 sends or receives HARQ feedback information, it is specially：

In the embodiment of the present invention, further, determining unit 10 is additionally operable to：

It is determined that carrying HARQ feedback TTI the first traffic order.

In the embodiment of the present invention, optionally, the first traffic order indicates the second physical transfer resource；

Now, when communication unit 11 sends or receives HARQ feedback information, it is specially：

Second physical transfer resource is determined according to the first traffic order；The HARQ feedback TTI time parameters carried using the first traffic order, and the second physical transfer resource, send or receive HARQ feedback information.

When determining data transmission fails, data are retransmitted.

The 3rd mapping ruler is determined, the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；And determined from the 3rd mapping ruler and the RTT time parameters corresponding to target TTI time parameters.

In the embodiment of the present invention, optionally, when communication unit 11 retransmits data, it is specially：

According to the RTT time parameters of determination, data are retransmitted.

It is determined that carrying the first traffic order of RTT time parameters.

In the embodiment of the present invention, optionally, the first traffic order indicates the 3rd physical resource；

When communication unit 11 retransmits data, it is specially：

The RTT time parameters carried according to the first traffic order, and the 3rd physical resource retransmit data.

After the time interval RTT time parameters with transmitting data, the second traffic order is received, the second traffic order indicates the 4th physical transfer resource；

When communication unit 10 retransmits data, it is specially：

4th physical transfer resource is determined according to the second traffic order；Using the 4th physical transfer resource, data are retransmitted.

In the embodiment of the present invention, optionally, when communication unit 10 retransmits data, it is specially：

Scheduling identification traversal the second traffic order of descrambling included using the first mapping ruler；The TTI time parameters corresponding to the scheduling identification of the second traffic order will successfully be descrambled, be used as re-transmission TTI time parameters；Data are retransmitted using TTI time parameters are retransmitted.

The 4th mapping ruler is determined, the 4th mapping ruler includes the corresponding relation of TTI time parameters and number of retransmissions；Determined from the 4th mapping ruler and the number of retransmissions corresponding to target TTI time parameters；It is determined that for data, number of retransmissions is less than the number of retransmissions determined.

It should be noted that described number of retransmissions refers to maximum retransmission herein, therefore, the operation performed by above-mentioned determining unit 10 can also be described as follows：

The 4th mapping ruler is determined, the 4th mapping ruler includes TTI time parameters and the corresponding relation of maximum retransmission；Determined from the 4th mapping ruler and the maximum retransmission corresponding to target TTI time parameters；It is determined that for data, number of retransmissions is less than the maximum retransmission determined

It should be noted that above-mentioned number of retransmissions can also be the number of transmissions, now described the number of transmissions is number of retransmissions and 1 sum.

In the embodiment of the present invention, optionally, used TTI time parameters and when used TTI time parameters are different during re-transmission data when passing data originally, number of retransmissions can be that used TTI time parameters are corresponding or TTI time parameters that used during with retransmitting are corresponding with just passing.

The 5th mapping ruler is determined, the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；Determined from the 5th mapping ruler and the bearer types corresponding to target TTI time parameters；It is determined that the data for sending or receiving belong to the bearer types determined.

Refering to shown in Figure 1B, the embodiment of the present invention provides a kind of network entity, and the network entity includes processor 100, transceiver 110, wherein：

Processor 100, for determining Transmission Time Interval TTI configuration parameters, TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Processor 100 is additionally operable to, and determines that a TTI time parameter is used as target TTI time parameters from TTI time parameters；

Transceiver 110, for data to be sent or received using target TTI time parameters.

It should be noted that processor 100 can also carry out other operations performed by the determining unit 10 shown in Figure 1A, transceiver 110 can also carry out other operations performed by the communication unit 11 shown in Figure 1A.

Refering to shown in Fig. 2A, the embodiment of the present invention provides a kind of base station, and the base station includes determining unit 20, transmitting element 21, wherein：

Determining unit 20, for determining Transmission Time Interval TTI configuration parameters, TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Transmitting element 21, for TTI configuration parameters to be sent into user equipment (UE).

In the embodiment of the present invention, optionally, TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.

In the embodiment of the present invention, further, transmitting element 21 is additionally operable to：

The first traffic order is sent to UE.

In the embodiment of the present invention, optionally, the first traffic order carries TTI time parameters, or bit bit identification corresponding with TTI time parameters；

First traffic order indicates the first physical transfer resource.

In the embodiment of the present invention, optionally, the first traffic order carries HARQ feedback TTI；

First traffic order indicates the second physical transfer resource.

In the embodiment of the present invention, optionally, the first traffic order carries two-way time RTT time parameter；

First traffic order indicates the 3rd physical resource.

The second traffic order is sent to UE, the second traffic order indicates the 4th physical transfer resource.

Refering to shown in Fig. 2 B, the embodiment of the present invention provides a kind of base station, and the base station includes processor 200, transmitter 210, wherein：

Processor 200, for determining Transmission Time Interval TTI configuration parameters, TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Transmitter 210, for TTI configuration parameters to be sent into user equipment (UE).

It should be noted that processor 200 can also carry out other operations performed by the determining unit 20 in Fig. 2A, transmitter 210 can also carry out other operations performed by the transmitting element 21 in Fig. 2A.

Based on such scheme, as shown in fig.3, in the embodiment of the present invention, it is also proposed that a kind of system of data communication, the system include as shown in Figure 1A or Figure 1B for user equipment when network entity, and the base station as shown in Fig. 2A or Fig. 2 B.

Based on such scheme, refering to shown in Fig. 4 A, in the embodiment of the present invention, a kind of flow of data communication is as follows：

Step 400：Network entity determines TTI configuration parameters, and TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Step 410：Network entity determines a TTI time parameter as target TTI time parameters from TTI time parameters；

Step 420：Network entity sends or received data using target TTI time parameters.

In the embodiment of the present invention, optionally, network entity can be base station, or can also be UE, This is not specifically limited, wherein, when network entity is base station, base station can be BS, can also be Node B, can also be eNode B, and foregoing description is base station under current communication system architecture, certainly, with the development of the communication technology, base station can also be the form under other communication system architectures, be no longer described in detail one by one herein.

In the embodiment of the present invention, TTI configuration parameters can directly be exactly the time interval indicated by TTI time parameters, now, TTI configuration parameters are exactly TTI time parameters, for example, TTI configuration parameters are 0.1ms, 0.5ms, 0.8ms, 1ms, or, TTI configuration parameters can also be the bit bit identification corresponding with the time interval indicated by TTI time parameters, for example, TTI configuration parameters are 00,01,10,11, wherein, 00 is corresponding with 0.1ms, 01 corresponding, 10 corresponding, 11 corresponding with 1ms with 0.8ms with 0.5ms.

,, optionally, can be in the following way when network entity determines TTI configuration parameters when network entity is UE in the embodiment of the present invention：

Network entity receives the TTI configuration parameters that network side equipment is sent.

That is, UE is it is determined that during TTI configuration parameters, the TTI configuration parameters that can send network side equipment, as the TTI configuration parameters of determination, it is, of course, also possible to there is other determination modes, are no longer described in detail one by one herein.

In the embodiment of the present invention, TTI time parameters can be in units of millisecond ms, for example, 0.1ms, 0.2ms, 0.5ms, 1ms etc..

Or, can also be in units of the time shared by an OFDM symbol, for example, 1OFDM symbols, 2OFDM symbols, 7OFDM symbols, 14OFDM symbols.

It is of course also possible in units of other, be not specifically limited herein.

In the embodiment of the present invention, time interval indicated by TTI time parameters can be provided for agreement predetermined time interval or agreement before time interval, for example, TTI configuration parameters are { 0.3ms, 0.5ms, 1ms }, wherein, 1ms can be TTI time parameters as defined in agreement.

When network entity is sent using target TTI time parameters or receives data in the embodiment of the present invention, it is not to say to be spaced after the duration corresponding to the time interval indicated by target TTI time parameters, just send or receive data, but say on the corresponding duration of time interval indicated by target TTI time parameters Send or receive data.

For example, the time interval indicated by target TTI time parameters is 0.5ms, it is not to say to send or receive data after the 0.5ms of interval, but this duration sends or received data in 0.5ms.

, optionally, can be in the following way when network entity determines a TTI time parameter as target TTI time parameters from TTI time parameters in the embodiment of the present invention：

Network entity determines the first mapping ruler and the first traffic order, and the first mapping ruler includes the corresponding relation of scheduling identification and TTI time parameters；

Network entity determines target TTI time parameters according to the first traffic order and the first mapping relations.

Wherein, optionally, can be in the following way when network entity determines target TTI time parameters according to the first traffic order and the first mapping relations：

Scheduling identification traversal the first traffic order of descrambling that network entity is included using the first mapping ruler；

Network entity will successfully descramble TTI time parameters corresponding to the scheduling identification of the first traffic order, be used as target TTI time parameters.

For example：First mapping ruler includes the corresponding relation of scheduling identification 1 (1001) and 0.1ms, the corresponding relation of scheduling identification 2 (1002) and 0.2ms, the corresponding relation of scheduling identification 3 (1003) and 0.5ms, the corresponding relation of scheduling identification 4 (1004) and 0.8ms, and the corresponding relation of scheduling identification 5 (1005) and 1ms, receive after the first traffic order, using scheduling identification 1, scheduling identification 2, scheduling identification 3, scheduling identification 4, scheduling identification 5 descrambles the first traffic order, if scheduling identification 1 successfully descrambles the first traffic order, then it regard 0.1ms as target TTI time parameters；If scheduling identification 5 successfully descrambles the first traffic order, 1ms is regard as target TTI time parameters.

In the embodiment of the present invention, different scheduling identifications can be corresponding with same TTI time parameters, is not specifically limited herein.

In the embodiment of the present invention, optionally, scheduling identification can be Scheduling (scheduling) RNTI (Radio Network Temporary Identity, Radio Network Temporary Identifier).

It is above-mentioned tell about be, target TTI time parameters are determined according to the first traffic order and the first mapping ruler, certainly, in order to improve the efficiency for determining target TTI time parameters, TTI time parameters can also be directly carried in first traffic order, therefore, in the embodiment of the present invention, network entity is joined from the TTI times , optionally, can be in the following way when determining a TTI time parameter as target TTI time parameters in number：

Network entity determines to carry the first traffic order of TTI time parameters；

The TTI time parameters that network entity carries the first traffic order, are used as target TTI time parameters.

For example, carrying 0.1ms in the first traffic order, then 0.1ms is regard as target TTI time parameters；0.5ms is carried in first traffic order, then regard 0.5ms as target TTI time parameters；1ms is carried in first traffic order, then regard 1ms as target TTI time parameters.

Foregoing description is, what is directly carried in first traffic order is TTI time parameters, certainly, bit bit identification corresponding with TTI time parameters can also be carried in order to reduce in the information content of the first traffic order carrying, the first traffic order, therefore, in the embodiment of the present invention, network entity, optionally, can be in the following way when determining a TTI time parameter as target TTI time parameters from TTI time parameters：

Network entity determines to carry the first traffic order of bit bit identification corresponding with TTI time parameters；Network entity will TTI time parameters corresponding with bit bit identification, be used as target TTI time parameters.

For example：00 is corresponding with 0.1ms, 01 corresponding, 10 corresponding with 0.5ms with 0.2ms, and 11 is corresponding with 1ms, and 11 can be carried in the first traffic order, can also carry 00, or can also carry 10 or 01.

Now, network entity, optionally, can be in the following way when being sent using target TTI time parameters or receiving data：

Network entity determines the first physical transfer resource according to the first traffic order；

Specifically, the first physical transfer resource can be one or more PRB (Physical Resource Block, Physical Resource Block), or, or one or more subcarriers.

Further, the first physical transfer resource can also include modulation coding mode, or redundancy versions.

Network entity is sent or received data using target TTI time parameters and the first physical transfer resource.

In the embodiment of the present invention, in order to improve the reliability of data, network entity can send or receive data by the way of binding, therefore, and network entity is sent or received using target TTI time parameters , optionally, can be in the following way during data：

Network entity sends or received data using at least two target TTI time parameters.

It should be noted that repeating to send or receive data when network entity is sent using at least two target TTI time parameters or receives data, in the time interval indicated by each target TTI time parameters at least two target TTI time parameters.

As shown in Figure 4 B, time interval indicated by target TTI time parameters is 0.5ms, network entity can send data using 0.5ms, but in order to improve the reliability of transmission data, data are sent using 2 target TTI time parameters, sent using a 0.5ms after data, then data are sent using a 0.5ms.

Above-mentioned illustrated by taking 2 target TTI time parameters as an example, certainly, in order to further improve the reliability of transmission data, can send data using the target TTI time parameters of more than 2.

In the embodiment of the present invention, network entity is received using target TTI time parameters after data, in addition to following operation：

Network entity sends HARQ feedback information；

Network entity is sent using target TTI time parameters after data, in addition to following operation：

Network entity receives HARQ feedback information.

When sending due to network entity or receive HARQ feedback information, sent using HARQ feedback TTI time parameters or receive HARQ feedback information, therefore, network entity is sent or received before HARQ feedback information, in addition to following operation：

Network entity determines the second mapping ruler, and the second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；

Network entity is determined and the HARQ feedback TTI time parameters corresponding to target TTI time parameters according to the second mapping ruler.

For example：TTI time parameters 0.1ms is corresponding with HARQ feedback TTI time parameters 0.2ms, TTI time parameters 0.2ms is corresponding with HARQ feedback TTI time parameters 0.2ms, TTI time parameters 0.5ms is corresponding with HARQ feedback TTI time parameters 0.5ms, TTI time parameters 1ms is corresponding with HARQ feedback TTI time parameters 1ms, if target TTI time parameters are 0.1ms, HARQ feedback TTI Time parameter 0.5ms.

In the embodiment of the present invention, different HARQ feedback TTI time parameters can be corresponding with same TTI time parameters, is not specifically limited herein.

Wherein, optionally, can be in the following way when network entity sends HARQ feedback information：

Network entity sends HARQ feedback information using the HARQ feedback TTI time parameters determined；

, optionally, can be in the following way when network entity receives HARQ feedback information：

Network entity receives HARQ feedback information using the HARQ feedback TTI time parameters determined.

Foregoing description is that HARQ feedback TTI is determined according to the second mapping ruler, and certainly, HARQ feedback TTI can also be carried in the first traffic order, therefore, in the embodiment of the present invention, network entity is sent or received before HARQ feedback information, in addition to following operation：

Network entity determines to carry HARQ feedback TTI the first traffic order.

Now, the first traffic order indicates the second physical transfer resource；

In the embodiment of the present invention, optionally, when the first traffic order indicates the second physical transfer resource, the second physical transfer resource can be directly carried in the first traffic order, or, the second physical transfer of resource location implicit instruction resource used in the first traffic order.

Wherein, used in first traffic order during the second physical transfer of resource location implicit instruction resource, specifically, CCE (the Control Channel Element that can be used by the first traffic order, control channel unit) location index, indicate the second physical transfer resource.

In the embodiment of the present invention, optionally, if the first traffic order is directed to the scheduling of upstream data, the second physical transfer resource can also the position of physical transfer resource (i.e. above-mentioned first physical transfer resource) according to used in upstream data obtain.In the embodiment of the present invention, optionally, the second physical transfer resource can be PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel), be used as the uplink feedback resource of downlink data；Or can also be PHICH (Physical Hybrid-ARQ Indicator Channel, Physical HARQ Indicator Channel), it is used as the downstream feedback resource of upstream data.Certainly, it is specifically that what channel present invention is not restricted.

, optionally, can be in the following way when network entity sends HARQ feedback information：

Network entity determines the second physical transfer resource according to the first traffic order；

Network entity uses the HARQ feedback TTI time parameters that the first traffic order is carried, and the second physical transfer resource to send HARQ feedback information；

Network entity uses the HARQ feedback TTI time parameters that the first traffic order is carried, and the second physical transfer resource to receive HARQ feedback information.

In the prior art, the HARQ feedback TTI time parameters that network entity is used when feeding back HARQ, send or receive the TTI time parameters typically identical used with data, and flexibility is poor.If the time interval indicated by the TTI time parameters that network entity is used when sending data is smaller, due to UE power limiteds, possible feeding back unsuccessful；If the time interval indicated by the TTI time parameters that network entity is used when sending data is larger, because the information content of HARQ feedback is small, typically there was only 1 bit or 2 bit informations, if UE power is unrestricted, during using carrying out HARQ feedback with TTI time parameter identical HARQ feedback TTI time parameters, there is a situation where the wasting of resources, therefore, in order to avoid above-mentioned situation, it is configured with different HARQ feedback TTI time parameters, under different scenes, network entity can be sent or be received HARQ feedback information using different HARQ feedback TTI time parameters.

In the embodiment of the present invention, the feedback that network entity is directed to the different pieces of information being sent to may be clashed in time.For example, it is 0.5ms that network entity, which sends target TTI time parameters used in data, HARQ feedback TTI time parameters are 1ms.Assuming that starting just biography in 0ms, data are sent using first 0.5ms, feedback interval 2ms is fed back at the 0.5+2=2.5ms moment, it is 1ms to feed back the HARQ feedback TTI used, i.e., carry out HARQ feedback for the data sent for the first time between 2.5ms to 3.5ms；Then, second 0.5ms sends data, the corresponding feedback moment is 1+2=3ms, it is 1ms to feed back the HARQ feedback TTI used, HARQ feedback is carried out for the data that second sends, it is seen that for the corresponding HARQ feedback of data sent in first 0.5ms, HARQ feedback corresponding with the data for being sent in second 0.5ms in time can be overlapping i.e. between 3ms to 4ms, i.e. in 3ms-3.5ms, this period overlaps, and then influences the decoding performance of feedback.

Influence when being clashed to solve to feed back to decoding performance, at this point it is possible to set different feedback resources for the different pieces of information clashed.

Generally, the multiple proportion of the HARQ feedback TTI time parameters used when carrying out HARQ feedback and target TTI time parameters, determines a few set feedback resources of needs：For example, HARQ feedback TTI time parameters are 1ms, target TTI time parameters are 0.5ms, then need 2 sets of feedback resources；In another example, HARQ feedback TTI time parameters are 1ms, and target TTI time parameters are 0.1ms, then need 10 sets of feedback resources.

In actual applications, data may send failure, in order to improve transmission reliability, and network entity is sent using target TTI time parameters after data, in addition to following operation：

When network entity determines data transmission fails, data are retransmitted.

In the embodiment of the present invention, network entity is retransmitted before data, in addition to following operation：

Network entity determines the 3rd mapping ruler, and the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；

Network entity is determined and the RTT time parameters corresponding to target TTI time parameters from the 3rd mapping ruler.

For example：TTI time parameters 0.1ms is corresponding with RTT time parameters 0.8ms, TTI time parameters 0.2ms and RTT time parameters 1.6ms is corresponding, TTI time parameters 0.5ms and RTT time parameters 4ms is corresponding, and TTI time parameters 1ms is corresponding with RTT time parameters 8ms, if target TTI time parameters are 0.1ms, it is 0.8ms that RTT time parameters can be determined from above-mentioned corresponding relation.

In the embodiment of the present invention, different RTT time parameters can be corresponding with same TTI time parameters, is not specifically limited herein.

, optionally, can be in the following way when network entity retransmits data in the embodiment of the present invention：

Network entity retransmits data according to the RTT time parameters of determination.

In the embodiment of the present invention, further, network entity is retransmitted before data, in addition to following operation：

Network entity determines to carry the first traffic order of RTT time parameters.

Optional, the 3rd physical resource and the first physical resource can be identical on frequency domain.

Now, optionally, can be in the following way when network entity retransmits data：

The RTT time parameters that network entity is carried according to the first traffic order, and the 3rd physical resource are retransmitted Data.

Further, before network entity re-transmission data, in addition to following operation：

When the network entity retransmits the data, it is specially：

Wherein, optionally, can be in the following way when the network entity retransmits the data：

In the embodiment of the present invention it should be noted that, when network entity retransmits data using RTT time parameters, when the time interval referred to last transmission reaches the time interval indicated by RTT time parameters, start to retransmit data, when the time interval that may also mean that with last transmission is more than the time interval indicated by RTT time parameters, start to retransmit data.

For example, it is T1 just to pass the moment, RTT time parameters are 8ms, then can retransmit data at this moment of T1+8ms, can retransmit data at the time of after T1+8ms.

In the embodiment of the present invention, when the time interval indicated by RTT time parameters is larger, HARQ retransmission delay times can be influenceed, when the time interval indicated by RTT time parameters is larger, data is may result in and retransmits failure.When data are retransmitted, using different RTT time parameters, the reliability of data transfer can be improved, simultaneously as can avoid retransmitting again, resource overhead can also be saved.

Network entity determines the 4th mapping ruler, and the 4th mapping ruler includes the corresponding relation of TTI time parameters and number of retransmissions；

Network entity is determined and the re-transmission time corresponding to target TTI time parameters from the 4th mapping ruler Number；

Network entity determines that number of retransmissions is less than the number of retransmissions determined for data.

For example, TTI time parameters 0.1ms is corresponding with number of retransmissions 5, TTI time parameters 0.2ms is corresponding with number of retransmissions 3, and TTI time parameters 0.5ms is corresponding with number of retransmissions 2, and TI time parameters 1ms is corresponding with number of retransmissions 1.

It should be noted that described number of retransmissions refers to maximum retransmission herein, therefore, aforesaid operations can also be described as follows：

The 4th mapping ruler is determined, the 4th mapping ruler includes TTI time parameters and the corresponding relation of maximum retransmission；Determined from the 4th mapping ruler and the maximum retransmission corresponding to target TTI time parameters；It is determined that for data, number of retransmissions is less than the maximum retransmission determined.

In the embodiment of the present invention, different number of retransmissions can be corresponding with same TTI time parameters, is not specifically limited herein.

Further, before network entity is using the transmission of target TTI time parameters or reception data, in addition to following operation：

Network entity determines the 5th mapping ruler, and the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；

Network entity is determined and the bearer types corresponding to target TTI time parameters from the 5th mapping ruler；

Network entity determines that the data for sending or receiving belong to the bearer types determined.

In the embodiment of the present invention, different bearer types can be corresponding with same TTI time parameters, is not specifically limited herein.

In the embodiment of the present invention, when it is determined that during target TTI time parameters, network entity only sends or connect The data of bearer types corresponding with target TTI time parameters are received, the data of other bearer types are not sent or receive.

It should be noted that being described herein as using bearer types, still, bearer types can also mutually be replaced with any one in logic channel, logic channel group, IP streams.

In the embodiment of the present invention, optionally, network entity determines TTI configuration parameters, the first mapping ruler, the second mapping ruler, the 3rd mapping ruler, the 4th mapping ruler, and during five mapping rulers, can be determined by RRC information, physical control message or MAC (Media Access Control can also be passed through, medium education) determination of layer control message, RRC information can be broadcast message, or specific messages, such as RRC connection reconfiguration message.Network entity it is specific it is determined that when, can be determined by same message, can also be determined, be not specifically limited herein by different messages.

In the prior art, when network entity sends or receives data, due to TTI time parameter only one of which, sending or receive the TTI time parameters used during data will not change with the difference of application scenarios, there is flexibility poor, and due to caused by flexibility is poor the wasting of resources it is more serious, the larger defect of physical control channel expense, and in the embodiment of the present invention, the TTI configuration parameters that network entity is determined indicate TTI time parameters, the number of TTI time parameters indicated by TTI configuration parameters is more than or equal to 2, time interval indicated by different TTI time parameters is different；Determine that a TTI time parameter is used as target TTI time parameters from TTI time parameters；Data are sent or received using target TTI time parameters, so, when sending or receiving data, can first selection target TTI time parameters as needed, improve flexibility simultaneously, the change of size of data can be better conformed to, data QoS (Quality of Service, service quality) desired change and the change of channel, further improve data transmission performance, save resource overhead.

As shown in fig.5, the embodiment of the present invention also proposes a kind of method of data communication：

Step 500：Base station determines TTI configuration parameters, and TTI configuration parameters indicate that the time interval indicated by the different TTI time parameters of the TTI time parameters indicated by TTI time parameter TTI configuration parameters is different；

Step 510：TTI configuration parameters are sent to UE by base station.

It should be understood that base station to UE when sending TTI configuration parameters, can an indicating section TTI time parameter, other TTI time parameters fix in the protocol.TTI=1ms TTI is fixed in such as agreement Time parameter, and the TTI time parameters for including 0.5ms in TTI configuration parameters are sent to UE, now, the number of the TTI time parameters indicated by TTI configuration parameters may be 1, but total TTI time parameters are more than or equal to 2.Certainly, other several TTI time parameters can also be fixed in agreement, are no longer described in detail one by one herein.

In the embodiment of the present invention, optionally, TTI time parameters are in units of ms, or in units of the time shared by an OFDM symbol.

In the embodiment of the present invention, further, method also includes：

Base station sends the first traffic order to UE.

First traffic order indicates the first physical transfer resource.

First traffic order indicates the second physical transfer resource.

First traffic order indicates the 3rd physical resource.

In the embodiment of the present invention, further, method also includes：

Base station sends the second traffic order to UE, and the second traffic order indicates the 4th physical transfer resource.

In the embodiment of the present invention, the TTI configuration parameters that base station is sent indicate the number of TTI time parameters, and the number of TTI time parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；Terminal is received after TTI configuration parameters, determines that a TTI time parameter is used as target TTI time parameters from TTI time parameters；Data are sent or received using target TTI time parameters, so, when sending or receiving data, can first selection target TTI time parameters as needed, improve flexibility simultaneously, the change of size of data, the change of data qos requirement and the change of channel can be better conformed to, data transmission performance is further improved, resource overhead is saved.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can be used one or more Wherein include the form for the computer program product implemented in the computer-usable storage medium (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) of computer usable program code.

The present invention is flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program product to describe.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that produce the device for being used for realizing the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames by the instruction of the computing device of computer or other programmable data processing devices.

These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices, so that series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the spirit and scope of various changes and modification without departing from the embodiment of the present invention to the embodiment of the present invention.So, if these modifications and variations of the embodiment of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims

A kind of network entity, it is characterised in that including：

Determining unit, for determining Transmission Time Interval TTI configuration parameters, the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The determining unit is additionally operable to, and determines that a TTI time parameter is used as target TTI time parameters from the TTI time parameters；

Communication unit, for data to be sent or received using the target TTI time parameters.
Network entity as claimed in claim 1, it is characterised in that the network entity is base station or user equipment (UE).
Network entity as claimed in claim 1 or 2, it is characterised in that when the network entity is UE, when the determining unit determines TTI configuration parameters, be specially：

Receive the TTI configuration parameters that network side equipment is sent.
Network entity as described in claim any one of 1-3, it is characterised in that the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.
Network entity as described in claim any one of 1-4, it is characterised in that when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

The first mapping ruler and the first traffic order are determined, first mapping ruler includes the corresponding relation of scheduling identification and the TTI time parameters；The target TTI time parameters are determined according to first traffic order and first mapping relations.
Network entity as claimed in claim 5, it is characterised in that when the determining unit determines the target TTI time parameters according to first traffic order and first mapping relations, be specially：

The scheduling identification traversal included using first mapping ruler descrambles first traffic order；And will successfully descramble TTI time parameters corresponding to the scheduling identification of first traffic order, it is used as institute State target TTI time parameters.
Network entity as described in claim any one of 1-4, it is characterised in that when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

It is determined that the first traffic order of TTI time parameters is carried, and the TTI time parameters that first traffic order is carried, it is used as the target TTI time parameters.
Network entity as described in claim any one of 1-4, it is characterised in that when the determining unit determines a TTI time parameter as target TTI time parameters from the TTI time parameters, be specially：

It is determined that carrying the first traffic order of bit bit identification corresponding with TTI time parameters；Will TTI time parameters corresponding with the bit bit identification, be used as the target TTI time parameters.
Network entity as described in claim any one of 5-8, it is characterised in that first traffic order indicates the first physical transfer resource；

When the communication unit is sent using the target TTI time parameters or receives data, it is specially：

First physical transfer resource is determined according to first traffic order；The data are sent or receive using the target TTI time parameters and the first physical transfer resource.
Network entity as described in claim any one of 1-9, it is characterised in that when the communication unit is sent using the target TTI time parameters or receives data, be specially：

The data are sent or received using target TTI time parameters described at least two.
Network entity as described in claim any one of 1-10, it is characterised in that the communication unit is additionally operable to：

Send or receive hybrid automatic repeat-request HARQ feedback information.
Network entity as claimed in claim 11, it is characterised in that the determining unit is additionally operable to:

The second mapping ruler is determined, second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；Determined according to second mapping ruler and the HARQ feedback TTI time parameters corresponding to the target TTI time parameters.
Network entity as claimed in claim 12, it is characterised in that the communication unit send or When person receives HARQ feedback information, it is specially：

Using the HARQ feedback TTI time parameters determined, HARQ feedback information is sent or received.
Network entity as claimed in claim 11, it is characterised in that the determining unit is additionally operable to：

It is determined that carrying HARQ feedback TTI the first traffic order.
Network entity as claimed in claim 14, it is characterised in that first traffic order indicates the second physical transfer resource；

When the communication unit sends or receives HARQ feedback information, it is specially：

The second physical transfer resource is determined according to first traffic order；The HARQ feedback TTI time parameters carried using first traffic order, and the second physical transfer resource, send or receive HARQ feedback information.
Network entity as described in claim any one of 1-15, it is characterised in that the communication unit is additionally operable to：

When determining the data transmission fails, the data are retransmitted.
Network entity as claimed in claim 16, it is characterised in that the determining unit is additionally operable to：

The 3rd mapping ruler is determined, the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；And determined from the 3rd mapping ruler and the RTT time parameters corresponding to the target TTI time parameters.
Network entity as claimed in claim 17, it is characterised in that when the communication unit retransmits the data, be specially：

According to the RTT time parameters of determination, the data are retransmitted.
Network entity as claimed in claim 16, it is characterised in that the determining unit is additionally operable to：

It is determined that carrying the first traffic order of RTT time parameters.
Network entity as claimed in claim 19, it is characterised in that first traffic order indicates the 3rd physical resource；

When the communication unit retransmits the data, it is specially：

The RTT time parameters carried according to first traffic order, and the 3rd physical resource retransmit the data.
Network entity as described in claim 17 or 19, it is characterised in that the determining unit is additionally operable to：

With after RTT time parameters described in the time interval of transmission data, receiving the second traffic order, second traffic order indicates the 4th physical transfer resource；

When the communication unit retransmits the data, it is specially：

4th physical transfer resource is determined according to second traffic order；Using the 4th physical transfer resource, the data are retransmitted.
Network entity as claimed in claim 21, it is characterised in that when the communication unit retransmits the data, be specially：

The scheduling identification traversal included using first mapping ruler descrambles second traffic order；The TTI time parameters corresponding to the scheduling identification of second traffic order will successfully be descrambled, be used as the re-transmission TTI time parameters；The data are retransmitted using the re-transmission TTI time parameters.
Network entity as described in claim any one of 16-22, it is characterised in that the determining unit is additionally operable to：

The 4th mapping ruler is determined, the 4th mapping ruler includes the corresponding relation of TTI time parameters and number of retransmissions；Determined from the 4th mapping ruler and the number of retransmissions corresponding to the target TTI time parameters；It is determined that for the data, number of retransmissions is less than the number of retransmissions determined.
Network entity as described in claim any one of 1-23, it is characterised in that the determining unit is additionally operable to：

The 5th mapping ruler is determined, the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；Determined from the 5th mapping ruler and the bearer types corresponding to the target TTI time parameters；Determine that the transmission or the data received belong to the bearer types determined.
A kind of base station, it is characterised in that including：

Determining unit, for determining Transmission Time Interval TTI configuration parameters, the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

Transmitting element, for the TTI configuration parameters to be sent into user equipment (UE).
Base station as claimed in claim 25, it is characterised in that the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.
Base station as described in claim 25 or 26, it is characterised in that the transmitting element is additionally operable to：

The first traffic order is sent to the UE.
Base station as claimed in claim 27, it is characterised in that first traffic order carries TTI time parameters, or bit bit identification corresponding with TTI time parameters；

First traffic order indicates the first physical transfer resource.
Base station as described in claim 27 or 28, it is characterised in that first traffic order carries HARQ feedback TTI；

First traffic order indicates the second physical transfer resource.
Base station as described in claim any one of 27-29, it is characterised in that first traffic order carries two-way time RTT time parameter；

First traffic order indicates the 3rd physical resource.
Base station as described in claim any one of 25-30, it is characterised in that the transmitting element is additionally operable to：

The second traffic order is sent to the UE, second traffic order indicates the 4th physical transfer resource.
A kind of method of data communication, it is characterised in that including：

Network entity determines Transmission Time Interval TTI configuration parameters, and the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The network entity determines that a TTI time parameter is used as target TTI time parameters from the TTI time parameters；

The network entity sends or received data using the target TTI time parameters.
Method as claimed in claim 32, it is characterised in that the network entity be base station or User equipment (UE).
Method as described in claim 32 or 33, it is characterised in that when the network entity is UE, the network entity determines TTI configuration parameters, including：

The network entity receives the TTI configuration parameters that network side equipment is sent.
Method as described in claim any one of 32-34, it is characterised in that the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.
Method as described in claim any one of 32-35, it is characterised in that network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines the first mapping ruler and the first traffic order, and first mapping ruler includes the corresponding relation of scheduling identification and the TTI time parameters；

The network entity determines the target TTI time parameters according to first traffic order and first mapping relations.
Method as claimed in claim 36, it is characterised in that the network entity determines the target TTI time parameters according to first traffic order and first mapping relations, including：

The scheduling identification traversal that the network entity is included using first mapping ruler descrambles first traffic order；

The network entity will successfully descramble TTI time parameters corresponding to the scheduling identification of first traffic order, be used as the target TTI time parameters.
Method as described in claim any one of 32-35, it is characterised in that network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines to carry the first traffic order of TTI time parameters；

The TTI time parameters that the network entity carries first traffic order, are used as the target TTI time parameters.
Method as described in claim any one of 32-35, it is characterised in that network entity determines a TTI time parameter as target TTI time parameters from the TTI time parameters, including：

The network entity determines to carry the first scheduling life of bit bit identification corresponding with TTI time parameters Order；

The network entity will TTI time parameters corresponding with the bit bit identification, be used as the target TTI time parameters.
Method as described in claim any one of 36-39, it is characterised in that first traffic order indicates the first physical transfer resource；

The network entity sends or received data using the target TTI time parameters, including：

The network entity determines the first physical transfer resource according to first traffic order；

The network entity sends or received the data using the target TTI time parameters and the first physical transfer resource.
Method as described in claim any one of 32-40, it is characterised in that the network entity sends or received data using the target TTI time parameters, including：

The network entity uses target TTI time parameters described at least two to send or receive the data.
Method as described in claim any one of 32-41, it is characterised in that the network entity is received using the target TTI time parameters after data, in addition to：

The network entity sends hybrid automatic repeat-request HARQ feedback information；

The network entity is sent using the target TTI time parameters after data, in addition to：

The network entity receives HARQ feedback information.
Method as claimed in claim 42, it is characterised in that the network entity is sent or received before HARQ feedback information, in addition to：

The network entity determines the second mapping ruler, and second mapping ruler includes the corresponding relation of TTI time parameters and HARQ feedback TTI time parameters；

The network entity is determined and the HARQ feedback TTI time parameters corresponding to the target TTI time parameters according to second mapping ruler.
Method as claimed in claim 43, it is characterised in that the network entity sends HARQ feedback information, including：

The network entity sends HARQ feedback using the HARQ feedback TTI time parameters determined Information；

The network entity receives HARQ feedback information, including：

The network entity receives HARQ feedback information using the HARQ feedback TTI time parameters determined.
Method as claimed in claim 42, it is characterised in that the network entity is sent or received before HARQ feedback information, in addition to：

The network entity determines to carry HARQ feedback TTI the first traffic order.
Method as claimed in claim 45, it is characterised in that first traffic order indicates the second physical transfer resource；

The network entity sends HARQ feedback information, including：

The network entity determines the second physical transfer resource according to first traffic order；

The network entity uses the HARQ feedback TTI time parameters that first traffic order is carried, and the second physical transfer resource to send HARQ feedback information；

The network entity receives HARQ feedback information, including：

The network entity determines the second physical transfer resource according to first traffic order；

The network entity uses the HARQ feedback TTI time parameters that first traffic order is carried, and the second physical transfer resource to receive HARQ feedback information.
Method as described in claim any one of 32-46, it is characterised in that the network entity is sent or received using the target TTI time parameters after data, in addition to：

When the network entity determines the data transmission fails, the data are retransmitted.
Method as claimed in claim 47, it is characterised in that the network entity is retransmitted before the data, in addition to：

The network entity determines the 3rd mapping ruler, and the 3rd mapping ruler includes the corresponding relation of TTI time parameters and two-way time RTT time parameter；

The network entity is determined and the RTT time parameters corresponding to the target TTI time parameters from the 3rd mapping ruler.
Method as claimed in claim 48, it is characterised in that the network entity retransmits the number According to, including：

The network entity retransmits the data according to the RTT time parameters of determination.
Method as claimed in claim 47, it is characterised in that the network entity is retransmitted before the data, in addition to：

The network entity determines to carry the first traffic order of RTT time parameters.
Method as claimed in claim 50, it is characterised in that first traffic order indicates the 3rd physical resource；

The network entity retransmits the data, including：

The RTT time parameters that the network entity is carried according to first traffic order, and the 3rd physical resource retransmit the data.
Method as claimed in claim 47, it is characterised in that the network entity is retransmitted before the data, in addition to：

With after RTT time parameters described in the time interval of transmission data, receiving the second traffic order, second traffic order indicates the 4th physical transfer resource；

When the network entity retransmits the data, it is specially：

4th physical transfer resource is determined according to second traffic order；Using the 4th physical transfer resource, the data are retransmitted.
Method as claimed in claim 52, it is characterised in that the network entity retransmits the data, including：

The scheduling identification traversal that the network entity is included using first mapping ruler descrambles second traffic order；

The network entity will successfully descramble TTI time parameters corresponding to the scheduling identification of second traffic order, is used as and retransmits TTI time parameters；

The network entity retransmits the data using the re-transmission TTI time parameters.
Method as described in claim any one of 47-53, it is characterised in that the network entity is retransmitted before the data, in addition to：

The network entity determines the 4th mapping ruler, and the 4th mapping ruler includes TTI time parameters With the corresponding relation of number of retransmissions；

The network entity is determined and the number of retransmissions corresponding to the target TTI time parameters from the 4th mapping ruler；

The network entity determines that number of retransmissions is less than the number of retransmissions determined for the data.
Method as described in claim any one of 32-54, it is characterised in that the network entity is sent or received using the target TTI time parameters before data, in addition to：

The network entity determines the 5th mapping ruler, and the 5th mapping ruler includes the corresponding relation of TTI time parameters and bearer types；

The network entity is determined and the bearer types corresponding to the target TTI time parameters from the 5th mapping ruler；

The network entity determines that the transmission or the data received belong to the bearer types determined.
A kind of method of data communication, it is characterised in that including：

Base station determines Transmission Time Interval TTI configuration parameters, and the TTI configuration parameters indicate TTI time parameters, and the number of the TTI time parameters indicated by the TTI configuration parameters is more than or equal to 2, and the time interval indicated by different TTI time parameters is different；

The TTI configuration parameters are sent to user equipment (UE) by the base station.
Method as claimed in claim 56, it is characterised in that the TTI time parameters are in units of millisecond ms, either in units of the time shared by an orthogonal frequency division multiplex OFDM symbol or in units of the number of OFDM symbol.
Method as described in claim 56 or 55, it is characterised in that methods described also includes：

The base station sends the first traffic order to the UE.
Method as claimed in claim 58, it is characterised in that first traffic order carries TTI time parameters, or bit bit identification corresponding with TTI time parameters；

First traffic order indicates the first physical transfer resource.
Method as described in claim 58 or 59, it is characterised in that first traffic order carries HARQ feedback TTI；

First traffic order indicates the second physical transfer resource.
Method as described in claim any one of 58-60, it is characterised in that first traffic order carries two-way time RTT time parameter；

First traffic order indicates the 3rd physical resource.
Method as described in claim any one of 56-61, it is characterised in that methods described also includes：

The base station sends the second traffic order to the UE, and second traffic order indicates the 4th physical transfer resource.