CN108353388A

CN108353388A - A kind of methods, devices and systems of transmission upstream data

Info

Publication number: CN108353388A
Application number: CN201580084144.2A
Authority: CN
Inventors: 李超君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-11-04
Filing date: 2015-11-04
Publication date: 2018-07-31
Also published as: WO2017075770A1

Abstract

The embodiment of the invention discloses a kind of methods, devices and systems of transmission upstream data, belong to wireless communication technology field.The method includes：The downlink data that base station is sent is received, and the first delivery time is determined according to the downlink data；The second delivery time before first delivery time sends reference signal to the base station；In first delivery time, upstream data is sent to the base station, the upstream data is the data of uplink physical channel carrying.Using the present invention, base station can be improved, probability is properly received to upstream data.

Description

A kind of methods, devices and systems transmitting upstream data

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of methods, devices and systems for transmitting upstream data.

Background technique

In LTE (Long Term Evolution, long term evolution) in system, terminal device receive base station transmission be carried on PDSCH (Physical Downlink Share Channel, Physical Downlink Shared Channel) downlink data or downlink semi-continuous scheduling (Semi-Persistent Scheduling, SPS) when release signaling, HARQ-ACK (the Hybrid Automatic Repeat Request-Acknowledg for being carried on PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) can be sent to base station Ement, the correct response of hybrid automatic repeat-request) feedback information, wherein, when PDSCH receives correct, terminal device feeding back ACK (Acknowledgement, correct response), when PDSCH receives mistake, terminal device feeds back NACK (Non-Acknowledgement, wrong responses).In addition, terminal device can also send the channel state information (CSI, Channel State Information) for being carried on PUCCH to base station.

In wireless communication system, one of an important factor for time delay (latency) is influence user experience, the transmission mechanism of Transmission Time Interval (transmission time interval, TTI) based on 1 subframe has been unable to satisfy the demand of low time delay business.Wherein, subframe when it is 1 millisecond a length of, each subframe is divided into two 0.5 millisecond of time slot (slot) again, and each time slot is made of 6 or 7 OFDM symbols (can be referred to as symbol).In order to further decrease time delay, the TTI of data need to be reduced to 1 time slot duration even 1 OFDM symbol duration however, after the time span of PUCCH becomes 1 time slot even 1 symbol from 1 original subframe, the terminal device transmission available power of PUCCH reduces significantly, and base station is caused to be properly received probability decline for PUCCH.

Summary of the invention

In order to realize in short TTI transmission, base station is improved to the purpose for being properly received probability of upstream data, the embodiment of the invention provides a kind of methods, devices and systems for transmitting upstream data.The technical solution is as follows:

In a first aspect, providing a kind of method for transmitting upstream data, which comprises

Terminal device receives the downlink data that base station is sent, and determines the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

Second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, wherein the reference signal demodulates the upstream data for the base station；

Terminal device sends upstream data in first sending instant, the base station Xiang Suoshu, wherein the upstream data is the data of uplink physical channel carrying.

Wherein, downlink data is the data that base station is sent to terminal device, and in other words, downlink data is the data for being carried on down physical channel.Preferably, downlink data can be business datum (such as, it is carried on the business datum of PDSCH), high-level signaling (Higher Layer Signaling), downlink SPS release signaling or Downlink Control Information (Downlink Control Information, DCI).Upstream data corresponding with downlink data can be the upstream data of the receiving status information upstream data or the downlink data dispatching that perhaps the downlink data indicates of the downlink data.

After base station is carried on the downlink data of down physical channel to terminal device transmission, terminal device can receive the downlink data of base station transmission, and determine the sending instant (being properly termed as the first sending instant) of upstream data corresponding with received downlink data.After terminal device receives the downlink data of base station transmission, it is demodulated, and according to demodulation result collocating uplink data, therefore, terminal device needs just be initially configured upstream data after upstream data demodulation.In addition, terminal device needs to send the reference signal demodulated for uplink physical channel to base station, channel estimation is carried out so that base station is based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.Terminal device can send upstream data and reference signal to base station in the first sending instant and the second sending instant respectively.

With reference to first aspect, in the first possible implementation of the first aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

In this way, HARQ RTT can be effectively reduced, in turn, it is possible to reduce time delay.

With reference to first aspect or the first possible implementation of first aspect, may be in implementation at second of the first aspect, second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu sends reference signal, comprising:

Terminal device determines that second sending instant is first sending instant L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

Terminal device sends the reference signal in second sending instant, the base station Xiang Suoshu.

After terminal device receives the downlink data of base station transmission, the second sending instant, the i.e. corresponding sending instant of reference signal can be determined.If with L_RSThe time span of reference signal is indicated, with T₁Indicate the first sending instant, T₂Indicate the second sending instant, then T₂=T₁-L_RS。

In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.

With reference to first aspect or first and second kind of possible implementation of first aspect, in the third possible implementation of the first aspect, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The terminal device determines first sending instant according to the downlink data, comprising:

Terminal device determines that first sending instant is the time of reception of the downlink data to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.

Wherein, HARQ-ACK information can serve to indicate that the reception state of the data of PDSCH carrying or the downlink semi-continuous scheduling release signaling (being properly termed as PDSCH or downlink SPS release signaling) of PDCCH carrying, be referred to as HARQ-ACK feedback information.

After terminal device receives downlink data, it will judge whether the downlink data received is correct, it in turn, can be to base station feedback HARQ-ACK information.Wherein, time delay interval T_DelayIt is predetermined to can be standard, terminal device can be by time delay interval T_DelayStorage.After terminal device receives downlink data, you can learn that the time of reception of downlink data.The time of reception of downlink data can be delayed T by terminal device_DelayAt the time of as terminal device to base station send be carried on PUCCH or PUSCH HARQ-ACK information the first sending instant, wherein T_DelayAs preset time delay interval.T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device.

In this way, can make terminal device before sending upstream data, there is the sufficient time demodulate and configure upstream data to the downlink data received.

The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of the first aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

First sending instant delays k*L than the time of reception of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD (Frequency Division Duplex, frequency division duplex) system, the transmission of HARQ-ACK information Length of the moment compared to 4 times of TTI of time of reception delay of downlink data, i.e. T_DelayFor 4*L_DL。

In this way, it is possible to reduce time delay.

With reference to first aspect or first and second kind of possible implementation of first aspect, in the 5th kind of possible implementation of the first aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.

With reference to first aspect or first to fourth kind of possible implementation of first aspect, in the 6th kind of possible implementation of the first aspect, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

Terminal device determines that first sending instant is at the time of the time of reception of the downlink data delaying 4 symbols；

Second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, comprising:

For terminal device at the time of the time of reception of the downlink data delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；

The terminal device sends upstream data in first sending instant, the base station Xiang Suoshu, comprising:

For terminal device at the time of the time of reception of the downlink data delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

After terminal device receives the downlink data of base station transmission, the upstream data for being carried on PUCCH can be sent to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this time, the TTI of downlink data is 1 symbol, that is, determines that the first sending instant is at the time of the time of reception of downlink data delaying 4 symbols.Acceptable really directional base station sends the sending instant of reference signal, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, reference signal can be sent to base station, and send the upstream data for being carried on PUCCH for corresponding to downlink data to base station at the time of the time of reception of downlink data delaying 4 symbols at the time of the time of reception of downlink data delaying 3 symbols.

In this way, HARQ RTT is reduced into 1/14 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, transmission time of the transmission time earlier than PUCCH of PUCCH RS is determined, therefore, the transmission for increasing RS neither influences RTT, and improves Upstream data is properly received probability and maintains uplink single-carrier property.

With reference to first aspect or first to fourth kind of possible implementation of first aspect, in the 7th kind of possible implementation of the first aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

Terminal device determines that first sending instant is at the time of the time of reception of the downlink data delaying 8 symbols；

For terminal device at the time of the time of reception of the downlink data delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；

For terminal device at the time of the time of reception of the downlink data delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

After terminal device receives the downlink data of base station transmission, the upstream data for being carried on PUCCH can be sent to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this time, the TTI of downlink data is 2 symbols, that is, determines that the first sending instant is at the time of the time of reception of downlink data delaying 8 symbols.Acceptable really directional base station sends the sending instant of reference signal, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, terminal device can be at the time of delaying 7 symbols the time of reception of downlink data, reference signal is sent to base station, when the time span of reference signal is 2 symbols, terminal device can be at the time of delaying 6 symbols the time of reception of downlink data, reference signal is sent to base station, and the upstream data for being carried on PUCCH for corresponding to downlink data can be sent to base station at the time of the time of reception of downlink data delaying 8 symbols.

In this way, ARQ RTT is reduced into 1/7 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, transmission time of the transmission time earlier than PUCCH of PUCCH RS is determined.Therefore, the transmission for increasing RS neither influences RTT, and improves being properly received probability and maintaining uplink single-carrier property for upstream data.

Second aspect provides a kind of method for transmitting upstream data, which comprises

Base station sends downlink data to terminal device, and determines for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

Second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station；

The base station receives the upstream data that the terminal device is sent in first time of reception, wherein the upstream data is the data of uplink physical channel carrying.

Base station can send the downlink data for being carried on down physical channel to terminal device, after transmission, it can determine the time of reception (being properly termed as first time of reception) of upstream data corresponding with transmitted downlink data, wherein, determine first time of reception can also to terminal device send downlink data before carry out, or both and meanwhile handled.The reference signal that base station can be sent in second time of reception before first time of reception, receiving terminal apparatus.Base station is after second time of reception received reference signal, channel estimation can be carried out based on the reference signal, and the wireless channel decline of uplink physical channel experience is corrected, and then the upstream data that preferably demodulates upstream data, and can send in the first time of reception receiving terminal apparatus.

In conjunction with second aspect, in the first possible implementation of the second aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

It can be able to achieve in conjunction with the first of second aspect or second aspect, in second of possible implementation of the second aspect, second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, comprising:

Base station determines that second time of reception is first time of reception L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

Base station receives the reference signal that the terminal device is sent in second time of reception.

After base station sends downlink data to terminal device, second time of reception, i.e. the reference signal corresponding time of reception can be determined.If with L_RSThe time span of reference signal is indicated, with T₃Indicate first time of reception, T₄Indicated for second time of reception, then T₄=T₃-L_RS。

In conjunction with first and second kind of possible implementation of second aspect or second aspect, in the second aspect In the third possible implementation, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The base station determines first time of reception according to the downlink data, comprising:

Base station determines that first time of reception is that the sending instant of the downlink data delays T_DelayAt the time of, the T_DelayFor preset time delay interval.

After base station sends downlink data to terminal device, first time of reception can be determined according to the sending instant of downlink data, wherein first time of reception can be sending instant and delay T_DelayAt the time of corresponding to afterwards.Time delay interval T_DelayIt is predetermined to can be standard, base station can be by time delay interval T_DelayStorage.After base station sends downlink data to terminal, you can learn that the sending instant of downlink data.The sending instant of downlink data can be delayed T by base station_DelayAt the time of as base station receiving terminal apparatus send the HARQ-ACK information for being carried on PUCCH or PUSCH first time of reception, wherein T_DelayAs preset time delay interval.T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of the second aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

First time of reception delayed k*L than the sending instant of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD (Frequency Division Duplex, frequency division duplex) system, time of reception of HARQ-ACK information is delayed the length of 4 times of TTI compared to the sending instant of downlink data, i.e. T_DelayFor 4*L_DL。

In this way, it is possible to reduce time delay.

In conjunction with first and second kind of possible implementation of second aspect or second aspect, in the 5th kind of possible implementation of the second aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.

In conjunction with the possible implementation of first to fourth of second aspect or second aspect kind, in the 6th kind of possible implementation of the second aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The base station determines first time of reception, comprising:

At the time of base station determines that first time of reception is that the sending instant of the downlink data delays 4 symbols；

Second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, comprising:

Base station receives the reference signal that the terminal device is sent at the time of the sending instant of the downlink data delays 3 symbols；

The base station receives the upstream data that the terminal device is sent in first time of reception, comprising:

Base station receives the upstream data for being carried on PUCCH that the terminal device is sent at the time of the sending instant of the downlink data delays 4 symbols.

After base station sends downlink data to terminal device, the time of reception for the data for being carried on PUCCH that terminal device is sent can be determined according to sending instant, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this time, the TTI of downlink data is 1 symbol, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 4 symbols.It can also determine the time of reception for the reference signal that terminal device is sent, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, it can be at the time of the sending instant of downlink data delays 3 symbols, receiving terminal apparatus send reference signal, and can at the time of the sending instant of downlink data delays 4 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

In this way, HARQ RTT is reduced into 1/14 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, transmission time of the transmission time earlier than PUCCH of PUCCH RS is determined, therefore, the transmission for increasing RS neither influences RTT, and improves being properly received probability and maintaining uplink single-carrier property for upstream data.

In conjunction with the possible implementation of first to fourth of second aspect or second aspect kind, in the 7th kind of possible implementation of the second aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The base station determines first time of reception, comprising:

At the time of base station determines that first time of reception is that the sending instant of the downlink data delays 8 symbols；

Base station receives the reference signal that the terminal device is sent at the time of the sending instant of the downlink data delays 7 symbols or 6 symbols；

Base station receives the upstream data for being carried on PUCCH that the terminal device is sent at the time of the sending instant of the downlink data delays 8 symbols.

After base station sends downlink data to terminal device, the time of reception for the data for being carried on PUCCH that terminal device is sent can be determined according to sending instant, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this time, the TTI of downlink data is 2 symbols, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 8 symbols.It can also determine the time of reception for the reference signal that terminal device is sent, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, it base station can be at the time of the sending instant of downlink data delays 7 symbols, the reference signal that receiving terminal apparatus is sent, when the time span of reference signal is 2 symbols, terminal device can be at the time of the sending instant of downlink data delays 6 symbols, the reference signal that receiving terminal apparatus is sent, can also at the time of the sending instant of downlink data delays 8 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

In this way, HARQ RTT is reduced into 1/7 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, transmission time of the transmission time earlier than PUCCH of PUCCH RS is determined.Therefore, the transmission for increasing RS neither influences RTT, and improves being properly received probability and maintaining uplink single-carrier property for upstream data.

The third aspect, provides a kind of terminal device, and terminal device includes receiver, processor, transmitter, in which:

The receiver, for receiving the downlink data of base station transmission；

The processor, the downlink data for being received according to the receiver determine the first sending instant, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

The transmitter, for the second hair before first sending instant that the processor is determined The moment is sent, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the processor is determined, the base station Xiang Suoshu sends upstream data, wherein the upstream data is the data of uplink physical channel carrying.

In conjunction with the third aspect, in the first possible implementation of the third aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in second of possible implementation of the third aspect, the processor is specifically used for:

Determine that second sending instant is first sending instant determined of processor L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The transmitter, is specifically used for:

In second sending instant that the processor is determined, the base station Xiang Suoshu sends the reference signal.

In conjunction with the third aspect or the third aspect first and second in may implementation, in the third possible implementation of the third aspect, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The processor, is specifically used for:

Determine that first sending instant is the time of reception for the downlink data that the receiver receives to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.

In conjunction with the third possible implementation of the third aspect, in the 4th kind of possible implementation of the third aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

In conjunction with first and second kind of possible implementation of the third aspect or the third aspect, in the 5th kind of possible implementation of the third aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.

In conjunction with the possible implementation of first to fourth of the third aspect or the third aspect kind.In the 6th kind of possible implementation of the third aspect, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the TTI of the downlink data is 1 symbol, and the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor, is specifically used for:

Determine that first sending instant is at the time of the time of reception for the downlink data that the receiver receives delaying 4 symbols；

The transmitter, is specifically used for:

At the time of the time of reception for the downlink data that the receiver receives delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver receives delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

In conjunction with the possible implementation of first to fourth of the third aspect or the third aspect kind.In the 7th kind of possible implementation of the third aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, and the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor, is specifically used for:

Determine that first sending instant is at the time of the time of reception for the downlink data that the receiver receives delaying 8 symbols；

The transmitter, is specifically used for:

At the time of the time of reception for the downlink data that the receiver receives delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver receives delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

Fourth aspect, provides a kind of base station, and the base station includes receiver, processor, transmitter, in which:

The transmitter, for sending downlink data to terminal device；

The processor, for determining for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

The receiver receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the processor is determined；In first time of reception that the processor is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.

In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, the second of the fourth aspect In the possible implementation of kind, the processor is specifically used for:

Determine that second time of reception is first time of reception for determining of processor L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiver, is specifically used for:

In second time of reception, the reference signal that the terminal device is sent is received.

In conjunction with first and second kind of possible implementation of fourth aspect or fourth aspect, in the third possible implementation of the fourth aspect, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The processor, is specifically used for:

Determine that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays T_DelayAt the time of, the T_DelayFor preset time delay interval.

In conjunction with the third possible implementation of fourth aspect, in the 4th kind of possible implementation of the fourth aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

In conjunction with first and second kind of possible implementation of fourth aspect or fourth aspect, in the 5th kind of possible implementation of the fourth aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.

In conjunction with the possible implementation of first to fourth of fourth aspect or fourth aspect kind, in the 6th kind of possible implementation of the fourth aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays 4 symbols；

The receiver, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter is sent delays 3 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant for the downlink data that the transmitter is sent delays 4 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

In conjunction with the possible implementation of first to fourth of fourth aspect or fourth aspect kind, in the fourth aspect In 7th kind of possible implementation, the upstream data is the data of PUCCH carrying, and the TTI of the downlink data is 1 symbol, and the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays 8 symbols；

The receiver, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter is sent delays 7 symbols or 6 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant for the downlink data that the transmitter is sent delays 8 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

5th aspect, provides a kind of terminal device, the terminal device includes:

Receiving module, for the downlink data for receiving base station transmission；

Determining module, for determining the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

Sending module, for the second sending instant before first sending instant that the determining module is determined, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the determining module is determined, the base station Xiang Suoshu sends upstream data, wherein the upstream data is the data of uplink physical channel carrying.

In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in second of possible implementation of the 5th aspect, the determining module is also used to:

Determine that second sending instant is first sending instant determined of determining module L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The sending module, is specifically used for:

In second sending instant that the determining module is determined, the base station Xiang Suoshu sends the reference signal.

In conjunction with first and second kind of possible implementation of the 5th aspect or the 5th aspect, in the third possible implementation of the 5th aspect, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The determining module, is specifically used for:

Determine that first sending instant is the time of reception of the downlink data to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.

In conjunction with the third possible implementation of the 5th aspect, in the 4th kind of possible implementation of the 5th aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

In conjunction with first and second kind of possible implementation of the 5th aspect or the 5th aspect, in the 5th kind of possible implementation of the 5th aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.

In conjunction with first to fourth kind of possible implementation of the 5th aspect or the 5th aspect, in the 6th kind of possible implementation of the 5th aspect, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The determining module, is specifically used for:

Determine that first sending instant is at the time of the time of reception of the downlink data delaying 4 symbols；

The sending module, is specifically used for:

At the time of the time of reception of the downlink data delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception of the downlink data delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

In conjunction with first to fourth kind of possible implementation of the 5th aspect or the 5th aspect, in the 7th kind of possible implementation of the 5th aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The determining module, is specifically used for:

Determine that first sending instant is at the time of the time of reception of the downlink data delaying 8 symbols；

The sending module, is specifically used for:

At the time of the time of reception of the downlink data delaying 7 symbols or 6 symbols, the base station Xiang Suoshu Send the reference signal；At the time of the time of reception of the downlink data delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

6th aspect, provides a kind of base station, the base station includes:

Sending module, for sending downlink data to terminal device；

Determining module, for determining for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

Receiving module receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the determining module is determined；In first time of reception that the determining module is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.

In conjunction with the 6th aspect, in the first possible implementation of the 6th aspect, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in second of possible implementation of the 6th aspect, the determining module is also used to:

Determine that second time of reception is first time of reception for determining of determining module L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiving module, is specifically used for:

In second time of reception that the determining module is determined, the reference signal that the terminal device is sent is received.

In conjunction with first and second kind of possible implementation of the 6th aspect or the 6th aspect, in the third possible implementation of the 6th aspect, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The determining module, is specifically used for:

Determine that first time of reception is that the sending instant of the downlink data delays T_DelayAt the time of, the T_DelayFor preset time delay interval.

In conjunction with the third possible implementation of the 6th aspect, in the 4th kind of possible implementation of the 6th aspect, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

In conjunction with first and second kind of possible implementation of the 6th aspect or the 6th aspect, in the 5th kind of possible implementation of the 6th aspect, the downlink data is high-level signaling, the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.

In conjunction with first to fourth kind of possible implementation of the 6th aspect or the 6th aspect, in the 6th kind of possible implementation of the 6th aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The determining module, is specifically used for:

At the time of determining that first time of reception is that the sending instant of the downlink data delays 4 symbols；

The receiving module, is specifically used for:

At the time of the sending instant of the downlink data delays 3 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant of the downlink data delays 4 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

In conjunction with first to fourth kind of possible implementation of the 6th aspect or the 6th aspect, in the 7th kind of possible implementation of the 6th aspect, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The determining module, is specifically used for:

At the time of determining that first time of reception is that the sending instant of the downlink data delays 8 symbols；

The receiving module, is specifically used for:

At the time of the sending instant of the downlink data delays 7 symbols or 6 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant of the downlink data delays 8 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

7th aspect provides a kind of system for transmitting upstream data, and the system comprises terminal devices and base station, in which:

The base station for sending downlink data to terminal device, and determined for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；Second time of reception before first time of reception receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station；In first time of reception, the upstream data that the terminal device is sent is received, wherein the upper line number According to the data carried for uplink physical channel；

The terminal device for receiving the downlink data of base station transmission, and determines the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；The second sending instant before first sending instant, the base station Xiang Suoshu send reference signal；In first sending instant, the base station Xiang Suoshu sends upstream data.

Technical solution provided in an embodiment of the present invention has the benefit that

In the embodiment of the present invention, receive the downlink data that base station is sent, and the first sending instant is determined according to downlink data, the second sending instant before the first sending instant, reference signal is sent to base station, in the first sending instant, upstream data is sent to base station, upstream data is the data of uplink physical channel carrying.In this way, the reference signal that base station can be sent according to terminal device carries out upstream data demodulation, upstream data can be improved is properly received probability, in addition, upstream data can also be sent as early as possible, reduces time delay of eating dishes without rice or wine.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of system framework schematic diagram provided in an embodiment of the present invention；

Fig. 2 is a kind of terminal device structural schematic diagram provided in an embodiment of the present invention；

Fig. 3 is a kind of architecture of base station schematic diagram provided in an embodiment of the present invention；

Fig. 4 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Fig. 5 (a) is a kind of schematic diagram of sending instant provided in an embodiment of the present invention；

Fig. 5 (b) is a kind of schematic diagram of sending instant provided in an embodiment of the present invention；

Fig. 6 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Fig. 7 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Fig. 8 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Fig. 9 (a) is the schematic diagram of time of reception provided in an embodiment of the present invention a kind of；

Fig. 9 (b) is the schematic diagram of time of reception provided in an embodiment of the present invention a kind of；

Figure 10 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Figure 11 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Figure 12 is a kind of flow chart of method for transmitting upstream data provided in an embodiment of the present invention；

Figure 13 is a kind of terminal device structural schematic diagram provided in an embodiment of the present invention；

Figure 14 is a kind of architecture of base station schematic diagram provided in an embodiment of the present invention.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing, embodiment of the present invention is described further in detail.

The embodiment of the invention provides a kind of methods for transmitting upstream data, this method can be realized jointly by terminal device and base station, wherein, terminal device is also referred to as user equipment (User Equipment, referred to as " UE "), mobile station (Mobile Station, referred to as " MS "), mobile terminal (Mobile Terminal) etc., the terminal device can be through wireless access network (Radio Access Network, referred to as " RAN ") it is communicated with one or more core nets, such as, terminal device can be mobile phone (or being " honeycomb " phone), computer etc. with mobile terminal, such as, terminal device can also be portable, pocket, hand-held, built-in computer Or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.Base station can be base station (the Base Transceiver Station in GSM or CDMA, referred to as " BTS "), base station (the NodeB being also possible in WCDMA, referred to as " NB "), it can also be the evolved base station (Evolutional Node B, referred to as " eNB or e-NodeB ") in LTE.Base station can send the downlink data for being carried on down physical channel to terminal device can be generated the upstream data of corresponding downlink data, and send it to base station, as shown in Figure 1 after terminal device receives the downlink data of base station transmission.

Terminal device may include receiver 210, processor 220, transmitter 230, and receiver 210, transmitter 230 can be connect with processor 220 respectively, as shown in Figure 2.Receiver 210 can be used for messaging or data, receiver 210 can include but is not limited to antenna, at least one amplifier, tuner, one or more oscillators, coupler, LNA (Low Noise Amplifier, low-noise amplifier), duplexer etc..Processor 220 can be the control centre of terminal device, utilize the various pieces of various interfaces and the entire terminal device of connection, such as receiver 210 and transmitter 230.In the present invention, processor 220 is determined for the relevant treatment of the sending instant of upstream data, and optionally, processor 220 may include one or more processing units；Preferably, processor 220 can integrate application processor and modem processor, wherein the main processing operation system of application processor, modem processor mainly handle wireless communication.Processor 220 can also be digital signal processor, specific integrated circuit, field programmable gate array or other programmable logic device etc..

Base station may include receiver 310, processor 320, transmitter 330, and receiver 310, transmitter 330 can be connect with processor 320 respectively, as shown in Figure 3.Receiver 310 can be used for messaging or data, receiver 310 can include but is not limited to antenna, at least one amplifier, tuner, one or more oscillators, coupler, LNA (Low Noise Amplifier, low-noise amplifier), duplexer etc..In the present invention, processor 320 is determined for the relevant treatment to the time of reception of upstream data, and processor 320 may include one or more processing units；Processor 320 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device etc..Specifically, program may include program code, and program code includes computer operation instruction.

The technical solution of the embodiment of the present invention can be applied to various communication systems, such as: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, CDMA (Code Division Multiple Access, referred to as " CDMA ") system, wideband code division multiple access (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, General Packet Radio Service (General Packet Radio Service, referred to as " GPRS "), long term evolution (Long Term E Volution, referred to as " LTE ") system, LTE frequency division duplex (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), Universal Mobile Communication System (Universal Mobile Telecommunication System, referred to as " UMTS ") and other application orthogonal frequency (OFDM) technology wireless communication system etc..

For the ease of the understanding to the embodiment of the present invention, introduce first below the present embodiments relate to basic conception.It is introduced by taking LTE system as an example, but this does not imply that the embodiment of the present invention is only applicable to LTE system, in fact, any can use scheme provided in an embodiment of the present invention by dispatching the wireless communication system carried out data transmission.

One, frame structure

In LTE system, each radio frames are made of the subframe (subframe) of 10 1ms length, and each subframe includes 2 time slots (slot).

For general cyclic prefix (Normal cyclic prefix, normal CP), each slot is made of 7 symbols (symbol), i.e., each slot is made of the symbol of serial number { #0, #1, #2, #3, #4, #5, #6 }；For long CP (Extended cyclic prefix, extended CP), each slot is made of 6 symbols (symbol), i.e., each slot is made of the symbol of serial number { #0, #1, #2, #3, #4, #5 }.

Wherein, uplink symbol is known as single-carrier frequency division multiple access (Single Carrier-Frequency Division Multiple Access, SC-FDMA) symbol.It should be noted that if subsequent technology introduces the uplink multi-address mode of orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), uplink symbol is referred to as OFDM symbol.In the embodiment of the present invention, SC-FDMA symbol and OFDMA symbol are all referred to as symbol.

Two, physical channel and physical signal

Data information of physical channel (physical channel) carrying from high-rise (higher layer), such as, carry the PUCCH of HARQ-ACK information and CSI, carry the Physical Uplink Shared Channel (physical uplink shared channel, PUSCH) of upstream data.Physical signal (physical signal) is used for physical layer, it does not carry from high-rise data information, preferably, in the present invention, physical signal is reference signal (Reference Signal, RS), such as demodulated reference signal (the Demodulation Reference Signal for PUCCH, DMRS), for the demodulated reference signal of PUSCH.

Base station can configure RS to each physical channel, and then carry out channel estimation according to the RS, then demodulate physical channel further according to the channel value estimated.Therefore, in the present invention, the corresponding RS of physical channel is used for the RS of demodulating physical channels.

Three, channel state information

In order to support descending self-adapting to dispatch, terminal device needs to report CSI to base station.CSI is the channel state information of descending carrier, CSI includes CQI (Channel Quality Indicator, channel quality instruction), PMI (Precoding Matrix Indicator, pre-coding matrix instruction), PTI (precoding type indicator, precoding type instruction), and/or, RI (Rank Indicator, order instruction) etc., CSI is reported reports (Periodic Reporting) and aperiodic CSI to report two kinds of (Aperiodic Reporting) including period CSI.

Below in conjunction with specific embodiment, process flow shown in Fig. 4 is described in detail, content can be such that

Step 401, terminal device receives the downlink data that base station is sent, and determines the first sending instant according to downlink data, wherein at the time of the first sending instant is that terminal device sends upstream data corresponding with downlink data to base station.

Wherein, downlink data is the data that base station is sent to terminal device, and in other words, downlink data is the data for being carried on down physical channel.Preferably, downlink data can be business datum (such as, it is carried on the business datum of PDSCH), high-level signaling (Higher Layer Signaling), downlink SPS release signaling or Downlink Control Information (Downlink Control Information, DCI).It is corresponding with downlink data Upstream data can be the upstream data of the receiving status information upstream data or the downlink data dispatching that perhaps the downlink data indicates of the downlink data.

In an implementation, after base station is carried on the downlink data of down physical channel to terminal device transmission, terminal device can receive the downlink data of base station transmission, and determine the sending instant (being properly termed as the first sending instant) of upstream data corresponding with received downlink data.

Optionally, can downlink data based on the received difference, determine the first sending instant in different ways.

Situation one, upstream data are the receiving status informations of downlink data, and in other words, upstream data is the corresponding HARQ-ACK information of downlink data.For example, downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, upstream data corresponding with downlink data is the correct response HARQ-ACK information of hybrid automatic repeat-request.The HARQ-ACK information can be carried on PUCCH or PUSCH.Wherein, HARQ-ACK information can serve to indicate that the data (can be referred to as PDSCH) of PDSCH carrying or the reception state of downlink semi-continuous scheduling release signaling, be referred to as HARQ-ACK feedback information.Wherein, HARQ-ACK information includes ACK, NACK or DTX (Discontinuous Transmission, discontinuous transmission).

In an implementation, after terminal device receives downlink data, it will judge whether the downlink data received is correct, it in turn, can be to base station feedback HARQ-ACK information.When downlink data reception is correct, terminal device feeds back correct response ACK；When downlink data receives mistake, terminal device feedback error response NACK；When being not received by downlink data, terminal device feeds back DTX.

The treatment process of step 401 can be such that terminal device receives the downlink data that base station is sent, and determine that the first sending instant is the time of reception of downlink data to delay T_DelayAt the time of, T_DelayFor preset time delay interval.

Time delay interval T_DelayIt is predetermined to can be standard, terminal device can be by time delay interval T_DelayStorage.After terminal device receives downlink data, you can learn that the time of reception of downlink data.The time of reception of downlink data can be delayed T by terminal device_DelayAt the time of as terminal device to base station send be carried on PUCCH or PUSCH HARQ-ACK information the first sending instant, wherein T_DelayAs preset time delay interval.

Optionally, T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device.

Optionally, preset time delay interval T_DelayThat is time delay interval defined in HARQ timing.According to Downlink data determines that the first sending instant determines the first sending instant according to the time of reception of downlink data and HARQ timing, wherein, HARQ timing refers to the sequence of the transmission time between downlink data and HARQ-ACK information, i.e. sending time sequence between PDSCH or downlink SPS release signaling and HARQ-ACK information.Specifically, the first sending instant delays k*L than the time of reception of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD (Frequency Division Duplex, frequency division duplex) system, the sending instant of HARQ-ACK information is delayed the length of 4 times of TTI compared to the time of reception of downlink data, i.e. T_DelayFor 4*L_DL.To reduce time delay, the TTI of downlink data can be less than 0.5 millisecond, for example, TTI is 1 symbol lengths or 2 symbol lengths.For example, the TTI of PDSCH is 1 symbol and downlink data starts to transmit in symbol n, then the PUCCH of carrying HARQ-ACK information starts to transmit in symbol n+4.For example, the TTI of PDSCH is 2 symbols and downlink data starts to transmit in symbol n, then the PUCCH of carrying HARQ-ACK information starts to transmit in symbol n+8.For TDD (Time Division Duplex, time division duplex) system, different uplink and downlink proportions can correspond to different HARQ timing, after terminal device knows uplink and downlink proportion, you can learn that the corresponding HARQ timing of the system can determine time delay interval T in turn_Delay.The transmission time of upstream data is determined according to HARQ timing, HARQ RTT (retransmit data packet and just pass the minimum interval between data packet) reduces at double, such as: when the TTI of downlink data be 1 or 2 symbol and upstream data when a length of 1 or 2 symbol when, HARQ RTT shorten to 1/14 or 1/7 when TTI is 1ms.

Situation two, upstream data are the upstream data of downlink data instruction.For example, upstream data corresponding with downlink data is the periodic channel status information CSI of high-level signaling instruction when downlink data is high-level signaling.The period, CSI was carried on PUCCH or PUSCH.The treatment process of step 401 can be such that terminal device receives the high-level signaling that base station is sent, and obtain the first sending instant according to the high-level signaling.

In an implementation, when downlink data is high-level signaling, terminal device can report the period CSI for being carried on PUCCH to base station, wherein the high-level signaling includes being used to indicate the signaling of the sending instant of period CSI.In other words, when downlink data is high-level signaling, wherein high-level signaling includes being used to indicate the signaling of the first sending instant, terminal device is after receiving high-level signaling, the sending instant (i.e. the first sending instant) of the period CSI indicated in available high-level signaling.

Situation three, upstream data are the upstream data of downlink data dispatching.When downlink data is DCI, upstream data corresponding to downlink data is the aperiodic CSI for being carried on PUCCH, or, it is carried on the data of PUSCH, wherein, DCI includes uplink scheduling information, i.e. UL Grant (uplink authorization), and the data for being carried on PUSCH may include uplink business data and/or control information feedback (Control Information Feedback).In such cases, terminal device can be determined when receiving downlink data and determining the first sending instant according to method described in situation one.Specifically, terminal device determines that the first sending instant is the time of reception of the downlink data to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.Optionally, T_DelaySetting need to consider processing time of terminal device, that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device.Optionally, preset time delay interval T_DelayThat is time delay interval defined in uplink scheduling timing, so determining that the first sending instant determines the first sending instant according to the time of reception of downlink data and uplink scheduling timing according to downlink data, wherein, uplink scheduling timing refers to the sequence of the transmission time between UL Grant and upstream data.Specifically, the first sending instant delays k*L than the time of reception of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD system, the sending instant of upstream data is delayed the length of 4 times of TTI compared to the time of reception of downlink data, i.e. T_DelayFor 4*L_DL。

Step 402, second sending instant of the terminal device before the first sending instant sends reference signal to base station, wherein reference signal demodulates upstream data for base station.

Wherein, the second sending instant can be terminal device to base station send reference signal at the time of.When carrying upstream data uplink physical channel be PUCCH, then reference signal be for PUCCH demodulation demodulated reference signal, be the reference signal for PUCCH；When carrying upstream data uplink physical channel be PUSCH, then reference signal be for PUSCH demodulation demodulated reference signal, be the reference signal for PUSCH.

In an implementation, after terminal device receives the downlink data that base station is sent, it is demodulated, and according to demodulation result collocating uplink data, therefore, terminal device needs just be initially configured upstream data after upstream data demodulation.In addition, terminal device needs to send the reference signal demodulated for uplink physical channel to base station, channel estimation is carried out so that base station is based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.For situation one, reception state of the configuration of reference signal independent of downlink data, as long as i.e. terminal device determination has downlink data transmission, reference signal can be initially configured, therefore, the sending instant (i.e. the second sending instant) of reference signal can be earlier than the first sending instant, as shown in Fig. 5 (a).In this way, sending RS in advance neither influences RTT, and improve upstream data is properly received probability.For situation two and situation three, reference signal sends earlier than upstream data, can not influence upstream data and send as early as possible.

Optionally, before sending reference signal, the corresponding sending instant of reference signal can be first determined, correspondingly, the treatment process of step 402 can be such that terminal device determines that the second sending instant is the first sending instant L forward_RSAt the time of, L_RSFor the time span of reference signal；Terminal device in the second sending instant, to Base station sends reference signal.

In an implementation, after terminal device receives the downlink data that base station is sent, the second sending instant, the i.e. corresponding sending instant of reference signal can be determined.If with L_RSThe time span of reference signal is indicated, with T₁Indicate the first sending instant, T₂Indicate the second sending instant, then T₂=T₁-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.For example, the time span of reference signal is 1 symbol, PUCCH starts to transmit in symbol n+4, then reference signal starts to transmit in n+3, as shown in Fig. 5 (b).In another example the time span of RS is 2 symbols, PUCCH starts to transmit in symbol n+8, then RS starts to transmit in symbol n+6.In another example the time span of RS is 1 symbol, PUCCH starts to transmit in symbol n+8, then RS starts to transmit in symbol n+7.

Optionally, before sending reference signal to base station, further includes: determine that first circulation shifts；The reference signal being located on symbol i is generated according to first circulation displacement.Wherein, symbol i is a symbol in the symbol of reference signal occupancy.When reference signal only takes up a symbol, which is located at symbol i.When reference signal occupies two or more symbols, which includes the reference signal on symbol i.It should be noted that, first circulation displacement is different with second circulation displacement, second circulation displacement is the cyclic shift applied to the 2nd PUCCH or the 2nd RS, and it is the PUCCH or RS that second terminal equipment is sent to base station that the 2nd PUCCH or the 2nd RS, which also are located at symbol i, the 2nd PUCCH or the 2nd RS,.In this way, when depositing the RS of the RS that terminal device in embodiments of the present invention is sent and PUCCH or other terminal devices that other terminal devices are sent on symbol i, it can be with code division multiplexing.

After determining the second sending instant according to the method described above, the reference signal that configuration is completed can be sent to base station in the second sending instant, terminal device.

Step 403, terminal device sends upstream data to base station in the first sending instant, wherein upstream data is the data of uplink physical channel carrying.

In an implementation, in the second sending instant, after terminal device sends reference signal to base station, upstream data can be sent to base station in the first sending instant, wherein upstream data can be the data of uplink physical channel carrying, such as, it is carried on ascending control information (including HARQ-ACK information and/or the CSI, alternatively, being carried on the uplink business data and/or control information feedback of PUSCH of PUCCH or PUSCH.

Optionally, the time span of uplink physical channel can be less than 0.5 millisecond, for example, 1 symbol or 2 symbols, the time span of reference signal can be less than or equal to the time span of uplink physical channel.

In this way, the reference signal that base station can be sent according to terminal device carries out upstream data demodulation, upstream data can be improved is properly received probability, in addition, upstream data can also be sent as early as possible, reduces time delay of eating dishes without rice or wine.

In the present embodiment, the data carried using upstream data as Physical Uplink Control Channel PUCCH, the TTI of downlink data is 1 symbol, the time span of PUCCH is 1 symbol, for the time span of reference signal is 1 symbol, the step of sending reference signal and upstream data is described in detail, as shown in Figure 6.

Step 601, terminal device receives the downlink data that base station is sent, and determines that the first sending instant is at the time of the time of reception of downlink data delaying 4 symbols.

In an implementation, after terminal device receives the downlink data that base station is sent, the upstream data that be carried on PUCCH can be sent to base station.Wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 1 symbol, that is, determine that the first sending instant is at the time of the time of reception of downlink data delaying 4 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling or high-level signaling that PDSCH is carried.Upstream data corresponding with downlink data can be the HARQ-ACK information of the downlink data or the period CSI of downlink data instruction.

Step 602, terminal device sends reference signal to base station at the time of the time of reception of downlink data delaying 3 symbols.

In an implementation, after terminal device receives the downlink data of base station transmission, acceptable really directional base station sends the sending instant of reference signal, wherein, reference signal is the demodulated reference signal demodulated for PUCCH, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, it is possible to send reference signal to base station at the time of the time of reception of downlink data delaying 3 symbols.

Step 603, terminal device sends the upstream data for being carried on PUCCH to base station at the time of the time of reception of downlink data delaying 4 symbols.

In an implementation, after terminal device sends reference signal to base station, the upstream data for being carried on PUCCH for corresponding to downlink data can be sent to base station at the time of the time of reception of downlink data delaying 4 symbols.

In the present embodiment, the data carried using upstream data as Physical Uplink Control Channel PUCCH, the TTI of downlink data is 2 symbols, the time span of PUCCH is 2 symbols, for the time span of reference signal is 1 symbol or 2 symbols, the step of sending reference signal and upstream data is described in detail, as shown in Figure 7.

Step 701, terminal device receives the downlink data that base station is sent, and determines that the first sending instant is at the time of the time of reception of downlink data delaying 8 symbols.

In an implementation, after terminal device receives the downlink data that base station is sent, the upstream data that be carried on PUCCH can be sent to base station.Wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 2 symbols, that is, determine that the first sending instant is at the time of the time of reception of downlink data delaying 8 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling or high-level signaling that PDSCH is carried.Upstream data corresponding with downlink data can be the HARQ-ACK information of the downlink data or the period CSI of downlink data instruction.

Step 702, terminal device sends reference signal to base station at the time of the time of reception of downlink data delaying 7 symbols or 6 symbols.

In an implementation, after terminal device receives the downlink data of base station transmission, acceptable really directional base station sends the sending instant of reference signal, wherein, reference signal is the demodulated reference signal demodulated for PUCCH, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, terminal device can be at the time of delaying 7 symbols the time of reception of downlink data, reference signal is sent to base station, when the time span of reference signal is 2 symbols, terminal device can be at the time of delaying 6 symbols the time of reception of downlink data, reference signal is sent to base station.

Step 703, terminal device sends the upstream data for being carried on PUCCH to base station at the time of the time of reception of downlink data delaying 8 symbols.

In an implementation, after terminal device sends reference signal to base station, the upstream data for being carried on PUCCH for corresponding to downlink data can be sent to base station at the time of the time of reception of downlink data delaying 8 symbols.

In this way, HARQ RTT is reduced into 1/7 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, transmission time of the transmission time earlier than PUCCH of PUCCH RS is determined.Therefore, the transmission for increasing RS neither influences RTT, and improves Upstream data is properly received probability and maintains uplink single-carrier property.

Below in conjunction with specific embodiment, the process flow of base station side as shown in Figure 8 is described in detail, content can be such that

Step 801, base station sends downlink data to terminal device, and determines for first time of reception, wherein at the time of first time of reception was the upstream data corresponding with downlink data that base station receiving terminal apparatus is sent.

In an implementation, base station can send the downlink data for being carried on down physical channel to terminal device, after transmission, it can determine the time of reception (being properly termed as first time of reception) of upstream data corresponding with transmitted downlink data, wherein, determine first time of reception can also to terminal device send downlink data before carry out, or both and meanwhile handled.

Optionally, first time of reception can be determined according to the difference of transmitted downlink data in different ways.

Situation one, upstream data are the receiving status informations of downlink data, and in other words, upstream data is the corresponding HARQ-ACK information of downlink data.For example, downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, upstream data corresponding with downlink data is the correct response HARQ-ACK information of hybrid automatic repeat-request.The HARQ-ACK information can be carried on PUCCH or PUSCH.The treatment process of step 801 can be such that base station sends downlink data to terminal device, and determine that first time of reception was that the sending instant of downlink data delays T_DelayAt the time of, T_DelayFor preset time delay interval.

Wherein, HARQ-ACK information can serve to indicate that the data (being properly termed as PDSCH) of PDSCH carrying or the reception state of downlink semi-continuous scheduling release signaling, be referred to as HARQ-ACK feedback information.

In an implementation, after base station sends downlink data to terminal device, first time of reception can be determined according to the sending instant of downlink data, wherein first time of reception can be sending instant and delay T_DelayAt the time of corresponding to afterwards.

Time delay interval T_DelayIt is predetermined to can be standard, base station can be by time delay interval T_DelayStorage.After base station sends downlink data to terminal, you can learn that the sending instant of downlink data.The sending instant of downlink data can be delayed T by base station_DelayAt the time of as base station receiving terminal apparatus send the HARQ-ACK information for being carried on PUCCH or PUSCH first time of reception, wherein T_DelayAs preset time delay interval.

Optionally, preset time delay interval T_DelayThat is time delay interval defined in HARQ timing.Determine that first time of reception determined for first time of reception according to the sending instant of downlink data and HARQ timing according to downlink data, wherein, HARQ timing refers to the sequence of the transmission time between downlink data and HARQ-ACK information, i.e. sending time sequence between PDSCH or downlink SPS release signaling and HARQ-ACK information.Specifically, first time of reception delayed k*L than the sending instant of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD (Frequency Division Duplex, frequency division duplex) system, time of reception of HARQ-ACK information is delayed the length of 4 times of TTI compared to the sending instant of downlink data, i.e. T_DelayFor 4*L_DL.To reduce time delay, the TTI of downlink data can be less than 0.5 millisecond, for example, TTI is 1 symbol lengths or 2 symbol lengths.For example, the TTI of PDSCH is 1 symbol and downlink data starts to send in symbol n, then base station starts to receive in symbol n+4.For example, the TTI of PDSCH is 2 symbols and downlink data starts to send in symbol n, then base station starts to receive in symbol n+8.For TDD (Time Division Duplex, time division duplex) system, different uplink and downlink proportions can correspond to different HARQ timing, after uplink and downlink proportion is known in base station, you can learn that the corresponding HARQ timing of the system can determine time delay interval T in turn_Delay.The time of reception to upstream data is determined according to HARQ timing, HARQ RTT (retransmit data packet and just pass the minimum interval between data packet) reduces at double, such as: when the TTI of downlink data be 1 or 2 symbol and upstream data when a length of 1 or 2 symbol when, HARQ RTT shorten to 1/14 or 1/7 when TTI is 1ms.

Situation two, upstream data are the upstream data of downlink data instruction.For example, upstream data corresponding with downlink data is the periodic channel status information CSI of high-level signaling instruction when downlink data is high-level signaling.The period, CSI was carried on PUCCH or PUSCH.The treatment process of step 801 can be such that base station determined for first time of reception, and send high-level signaling to terminal device, and the high-level signaling includes the information for being used to indicate for first time of reception.

In an implementation, base station can to terminal device send high-level signaling, wherein in high-level signaling include time information, base station can using in high-level signaling comprising at the time of as first time of reception.After the time of reception (i.e. first time of reception) that base station determines period CSI, after high-level signaling being sent to terminal device.It should be pointed out that when terminal device receives high-level signaling, also in available high-level signaling comprising at the time of information, terminal device can using in high-level signaling comprising at the time of as the first sending instant.That is, base station can using in high-level signaling comprising at the time of as first time of reception, terminal device can using in high-level signaling comprising at the time of as the first sending instant.

Situation three, upstream data are the upstream data of downlink data dispatching.When downlink data is DCI, upstream data corresponding to downlink data is the aperiodic CSI for being carried on PUCCH, or, it is carried on the data of PUSCH, wherein, DCI includes uplink scheduling information, i.e. UL Grant (uplink authorization), and the data for being carried on PUSCH may include uplink business data and/or control information feedback (Control Information Feedback).In such cases, it when base station determined for first time of reception according to downlink data, can be determined according to method described in situation one.Optionally, T_DelaySetting need to consider processing time of terminal device, that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device.Specifically, base station determines that first time of reception was that the sending instant of the downlink data delays T_DelayAt the time of, the T_DelayFor preset time delay interval.Preset time delay interval T_DelayThat is time delay interval defined in uplink scheduling timing, so determining that first time of reception determined for first time of reception according to the sending instant of downlink data and uplink scheduling timing according to downlink data, wherein, uplink scheduling timing refers to the sequence of the transmission time between UL Grant and upstream data.Specifically, first time of reception delayed k*L than the sending instant of downlink data_DL, wherein k is positive integer, it is preferable that k is the positive integer more than or equal to 4, L_DLFor the Transmission Time Interval TTI of downlink data.For FDD system, time of reception of upstream data is delayed the length of 4 times of TTI compared to the sending instant of downlink data, i.e. T_DelayFor 4*L_DL。

Step 802, second time of reception of the base station before first time of reception, the reference signal that receiving terminal apparatus is sent, wherein reference signal demodulates upstream data for base station.

Wherein, at the time of second time of reception can be the reference signal of base station receiving terminal apparatus transmission.When carrying upstream data uplink physical channel be PUCCH, then reference signal be for PUCCH demodulation demodulated reference signal, be the reference signal for PUCCH；When carrying upstream data uplink physical channel be PUSCH, then reference signal be for PUSCH demodulation demodulated reference signal, be the reference signal for PUSCH.

In an implementation, terminal device can send reference signal to base station in the second sending instant before the first sending instant, correspondingly, base station can receive terminal in second time of reception before first time of reception The reference signal that equipment is sent.Base station can carry out channel estimation based on the reference signal after second time of reception received reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.For situation one, reception state of the configuration of reference signal independent of downlink data, as long as i.e. terminal device determination has downlink data transmission, it can be initially configured reference signal, equal downlink datas demodulation is not needed and finish, therefore, the sending instant (i.e. the second sending instant) of reference signal can be earlier than the first sending instant, as shown in Fig. 9 (a), correspondingly, (i.e. second time of reception) can be earlier than first time of reception at the time of base station receives reference signal.In this way, receiving RS in advance neither influences RTT, and improve upstream data is properly received probability.For situation two and situation three, reference signal receives earlier than upstream data, can not influence upstream data and receive as early as possible.

Optionally, before receiving reference signal, the reference signal corresponding time of reception can be first determined, correspondingly, the treatment process of step 802 can be such that base station determines that second time of reception was first time of reception L forward_RSAt the time of, L_RSFor the time span of reference signal；The reference signal that base station is sent in second time of reception, receiving terminal apparatus.

In an implementation, after base station sends downlink data to terminal device, second time of reception, i.e. the reference signal corresponding time of reception can be determined.If with L_RSThe time span of reference signal is indicated, with T₃Indicate first time of reception, T₄Indicated for second time of reception, then T₄=T₃-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.For example, the time span of reference signal is 1 symbol, PUCCH starts to receive in symbol n+4, then reference signal starts to receive in n+3, such as Fig. 9 (b).In another example the time span of RS is 2 symbols, PUCCH starts to receive in symbol n+8, then RS starts to receive in symbol n+6.In another example the time span of RS is 1 symbol, PUCCH starts to receive in symbol n+8, then RS starts to receive in symbol n+7.

Optionally, base station is before or while receiving reference signal or later, further includes: determines that first circulation shifts；The reference signal being located on symbol i is generated according to first circulation displacement.Wherein, symbol i is a symbol in the symbol of reference signal occupancy.When reference signal only takes up a symbol, which is located at symbol i.When reference signal occupies two or more symbols, which includes the reference signal on symbol i.It should be noted that, first circulation displacement is different with second circulation displacement, second circulation displacement is the cyclic shift applied to the 2nd PUCCH or the 2nd RS, and it is the PUCCH or RS that second terminal equipment is sent to base station that the 2nd PUCCH or the 2nd RS, which also are located at symbol i, the 2nd PUCCH or the 2nd RS,.In this way, when depositing the RS of the RS that terminal device in embodiments of the present invention is sent and PUCCH or other terminal devices that other terminal devices are sent on symbol i, it can be with code division multiplexing.It should be noted that The reference signal that base station receives is the reference signal by wireless channel, so base station needs to generate reference signal (i.e. the reference signal without wireless channel of terminal device transmitting), and the reference signal of generation is carried out operation with the reference signal received, wireless channel value is obtained, i.e. progress channel estimation.The wireless channel value is then based on to demodulate upstream data.

It, can be in second time of reception, the reference signal of base station receiving terminal apparatus transmission after determining for second time of reception according to the method described above.

Step 803, the upstream data that base station is sent in first time of reception, receiving terminal apparatus, wherein upstream data is the data of uplink physical channel carrying.

In an implementation, in second time of reception, after the reference signal that base station receiving terminal apparatus is sent, the upstream data that can be sent in the first time of reception receiving terminal apparatus, wherein upstream data can be the data of uplink physical channel carrying, such as, it is carried on ascending control information (including HARQ-ACK information and/or the CSI, alternatively, being carried on the uplink business data and/or control information feedback of PUSCH of PUCCH or PUSCH.

In the present embodiment, the data carried using upstream data as Physical Uplink Control Channel PUCCH, the TTI of downlink data is 1 symbol, the time span of PUCCH is 1 symbol, for the time span of reference signal is 1 symbol, the step of receiving reference signal and upstream data is described in detail, as shown in Figure 10.

Step 1001, base station sends downlink data to terminal device, at the time of determining that first time of reception was that the sending instant of downlink data delays 4 symbols.

In an implementation, after base station sends downlink data to terminal device, the time of reception for the data for being carried on PUCCH that terminal device is sent can be determined according to sending instant.Wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this point, the TTI of downlink data is 1 symbol, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 4 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling or high-level signaling that PDSCH is carried.Upstream data corresponding with downlink data can be the HARQ-ACK information of the downlink data or the period CSI of downlink data instruction.

Step 1002, base station is at the time of the sending instant of downlink data delays 3 symbols, the reference signal of receiving terminal apparatus transmission.

In an implementation, after base station sends downlink data to terminal device, it can also determine the time of reception for the reference signal that terminal device is sent, wherein, reference signal is the demodulated reference signal demodulated for PUCCH, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, it is possible at the time of the sending instant of downlink data delays 3 symbols, the reference signal of receiving terminal apparatus transmission.

Step 1003, base station is at the time of the sending instant of downlink data delays 4 symbols, the upstream data for being carried on PUCCH of receiving terminal apparatus transmission.

In an implementation, base station receiving terminal apparatus send reference signal after, can at the time of the sending instant of downlink data delays 4 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

In this way, HARQ RTT is reduced into 1/14 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, the time of reception of the time of reception earlier than PUCCH of PUCCH RS is determined, therefore, the reception for increasing RS neither influences RTT, and improves being properly received probability and maintaining uplink single-carrier property for upstream data.

In the present embodiment, the data carried using upstream data as Physical Uplink Control Channel PUCCH, the TTI of downlink data is 2 symbols, the time span of PUCCH is 2 symbols, for the time span of reference signal is 1 symbol or 2 symbols, the step of receiving reference signal and upstream data is described in detail, as shown in figure 11.

Step 1101, base station sends downlink data to terminal device, at the time of determining that first time of reception was that the sending instant of downlink data delays 8 symbols.

In an implementation, after base station sends downlink data to terminal device, the time of reception for the data for being carried on PUCCH that terminal device is sent can be determined according to sending instant.Wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this point, the TTI of downlink data is 2 symbols, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 8 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling or high-level signaling that PDSCH is carried.Upstream data corresponding with downlink data can be the HARQ-ACK information of the downlink data or the period CSI of downlink data instruction.

Step 1102, base station is at the time of the sending instant of downlink data delays 7 symbols or 6 symbols, The reference signal that receiving terminal apparatus is sent.

In an implementation, after base station sends downlink data to terminal device, it can also determine the time of reception for the reference signal that terminal device is sent, wherein, reference signal is the demodulated reference signal demodulated for PUCCH, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, it base station can be at the time of the sending instant of downlink data delays 7 symbols, the reference signal that receiving terminal apparatus is sent, when the time span of reference signal is 2 symbols, terminal device can be at the time of the sending instant of downlink data delays 6 symbols, the reference signal that receiving terminal apparatus is sent.

Step 1103, base station is at the time of the sending instant of downlink data delays 8 symbols, the upstream data for being carried on PUCCH of receiving terminal apparatus transmission.

In an implementation, base station receiving terminal apparatus send reference signal after, can at the time of the sending instant of downlink data delays 8 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

In this way, HARQ RTT is reduced into 1/7 of HARQ RTT when TTI is 1ms.Further, because of processing time of the generation of RS independent of downlink data, the time of reception of the time of reception earlier than PUCCH of PUCCH RS is determined.Therefore, the reception for increasing RS neither influences RTT, and improves being properly received probability and maintaining uplink single-carrier property for upstream data.

Below in conjunction with specific embodiment, the process flow of system as shown in figure 12 is described in detail, content can be such that

Step 1201, base station sends downlink data to terminal device, determines for first time of reception, wherein at the time of first time of reception was the upstream data corresponding with downlink data that base station receiving terminal apparatus is sent.

In an implementation, base station can send the downlink data for being carried on down physical channel to terminal device, and can determine that the time of reception of upstream data corresponding with transmitted downlink data (is properly termed as the first reception Moment).

Step 1202, terminal device receives the downlink data that base station is sent, and determines the first sending instant, wherein at the time of first time of reception was that terminal device sends upstream data corresponding with downlink data to base station.

Step 1203, second sending instant of the terminal device before the first sending instant sends reference signal to base station, wherein reference signal demodulates upstream data for base station.

In an implementation, after terminal device receives the downlink data that base station is sent, it is demodulated, and according to demodulation result collocating uplink data, therefore, terminal device needs just be initially configured upstream data after upstream data demodulation.In addition, terminal device needs to send the reference signal demodulated for uplink physical channel to base station, channel estimation is carried out so that base station is based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.

Step 1204, second time of reception of the base station before first time of reception, the reference signal that receiving terminal apparatus is sent, wherein reference signal demodulates upstream data for base station.

Wherein, at the time of second time of reception can be the reference signal of base station receiving terminal apparatus transmission.

In an implementation, terminal device can send reference signal to base station in the second sending instant before the first sending instant, correspondingly, the reference signal that base station can be sent in second time of reception before first time of reception, receiving terminal apparatus.Base station can carry out channel estimation based on the reference signal after second time of reception received reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.

Step 1205, terminal device sends upstream data to base station in the first sending instant, wherein upstream data is the data of uplink physical channel carrying.

In an implementation, in the second sending instant, after terminal device sends reference signal to base station, upstream data can be sent to base station in the first sending instant, wherein, upstream data can be the data of uplink physical channel carrying, for example, being carried on ascending control information (including the HARQ-ACK of PUCCH or PUSCH Information and/or CSI, alternatively, being carried on the uplink business data and/or control information feedback of PUSCH.

Step 1206, the upstream data that base station is sent in first time of reception, receiving terminal apparatus, wherein upstream data is the data of uplink physical channel carrying.

In the embodiment of the present invention, downlink data is sent to terminal device, and first time of reception was determined according to downlink data, second time of reception before first time of reception, the reference signal that receiving terminal apparatus is sent, in first time of reception, the upstream data that receiving terminal apparatus is sent, upstream data is the data of uplink physical channel carrying.In this way, the reference signal that base station can be sent according to terminal device carries out upstream data demodulation, upstream data can be improved is properly received probability, in addition, upstream data can also be sent as early as possible, reduces time delay of eating dishes without rice or wine.

Based on identical design, the embodiment of the invention also provides a kind of terminal devices, as shown in Fig. 2, the process of Fig. 4, Fig. 6 of the present invention and embodiment illustrated in fig. 7 may be implemented in terminal device provided in this embodiment, the terminal device includes receiver 210, processor 220, transmitter 230, wherein

The receiver 210, for receiving the downlink data of base station transmission；

The processor 220, the downlink data for being received according to the receiver 210 determine the first sending instant, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

The transmitter 230, for the second sending instant before first sending instant that the processor 220 is determined, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the processor 220 is determined, the base station Xiang Suoshu sends upstream data, wherein the upstream data is the data of uplink physical channel carrying.

In an implementation, after base station is carried on the downlink data of down physical channel to terminal device transmission, receiver 210 can receive the downlink data of base station transmission, and processor 220 can determine the sending instant (being properly termed as the first sending instant) of upstream data corresponding with downlink data received by receiver 210.After receiver 210 receives the downlink data of base station transmission, processor 220 demodulates it, and according to demodulation result collocating uplink data, and therefore, processor 220 needs to start after upstream data demodulation Collocating uplink data.In addition, transmitter 230 needs to send the reference signal demodulated for uplink physical channel to base station, channel estimation is carried out so that base station is based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.Transmitter 230 is in the second sending instant, after sending reference signal to base station, can send upstream data to base station in the first sending instant, wherein specific implementation process can be realized according to method described in step 401-403.

Optionally, for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.

Optionally, the processor 220, is specifically used for:

Determine that second sending instant is first sending instant determined of the processor 220 L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The transmitter 230, is specifically used for:

In second sending instant that the processor 220 is determined, the base station Xiang Suoshu sends the reference signal.

In an implementation, after receiver 210 receives the downlink data that base station is sent, processor 220 can determine the second sending instant, the i.e. corresponding sending instant of reference signal.If with L_RSThe time span of reference signal is indicated, with T₁Indicate the first sending instant, T₂Indicate the second sending instant, then T₂=T₁-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.After processor 220 determines the second sending instant, transmitter 230 can send the reference signal that configuration is completed to base station in the second sending instant.

Optionally, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The processor 220, is specifically used for:

Determine that first sending instant is the time of reception for the downlink data that the receiver 210 receives to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.

In an implementation, after receiver 210 receives downlink data, processor 220 will judge whether the downlink data that receives is correct, and in turn, transmitter 230 can be to base station feedback HARQ-ACK information.

Time delay interval T_DelayIt is predetermined to can be standard, it can be by time delay interval T_DelayStorage.After receiver 210 receives downlink data, processor 220 you can learn that downlink data the time of reception, the time of reception of downlink data can be delayed into T_DelayAt the time of as transmitter 230 to base station send be carried on PUCCH or PUSCH HARQ-ACK information the first sending instant, wherein T_DelayAs in advance The time delay interval of setting.

Optionally, T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device, wherein specific implementation process can be realized according to method described in situation one in step 401.

Optionally, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.

Optionally, the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI, wherein, specific implementation process can be realized according to method described in situation two, three in step 401.

Optionally, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the reference signal is the demodulated reference signal demodulated for the PUCCH, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor 220, is specifically used for:

Determine that first sending instant is at the time of the time of reception for the downlink data that the receiver 210 receives delaying 4 symbols；

The transmitter 230, is specifically used for:

At the time of the time of reception for the downlink data that the receiver 210 receives delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver 210 receives delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

In an implementation, after receiver 210 receives the downlink data of base station transmission, the upstream data for being carried on PUCCH can be sent to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 1 symbol, processor 220 is to determine that the first sending instant is at the time of the time of reception of downlink data delaying 4 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling of PDSCH carrying.After receiver 210 receives the downlink data of base station transmission, the acceptable really directional base station of processor 220 sends the sending instant of reference signal, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, it can be at the time of the time of reception of downlink data delaying 3 symbols, transmitter 210 sends reference signal to base station.It, can also be in downlink data after transmitter 210 sends reference signal to base station The time of reception upstream data for being carried on PUCCH for corresponding to downlink data is sent at the time of delay 4 symbols to base station.

Optionally, the upstream data is the data of PUCCH carrying, and the reference signal is the demodulated reference signal demodulated for the PUCCH, and the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor 220, is specifically used for:

Determine that first sending instant is at the time of the time of reception for the downlink data that the receiver 210 receives delaying 8 symbols；

The transmitter 230, is specifically used for:

At the time of the time of reception for the downlink data that the receiver 210 receives delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver 210 receives delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

In an implementation, after receiver 210 receives the downlink data of base station transmission, the upstream data for being carried on PUCCH can be sent to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 2 symbols, processor 220 is to determine that the first sending instant is at the time of the time of reception of downlink data delaying 8 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling of PDSCH carrying.After receiver 210 receives the downlink data of base station transmission, the acceptable really directional base station of processor 220 sends the sending instant of reference signal, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, transmitter 230 can be at the time of delaying 7 symbols the time of reception of downlink data, reference signal is sent to base station, when the time span of reference signal is 2 symbols, transmitter 230 can be at the time of delaying 6 symbols the time of reception of downlink data, reference signal is sent to base station.After transmitter 230 sends reference signal to base station, the upstream data for being carried on PUCCH for corresponding to downlink data can also be sent to base station at the time of the time of reception of downlink data delaying 8 symbols.

Based on identical design, the embodiment of the invention also provides a kind of base stations, as shown in Figure 3, the process of Fig. 8, Figure 10 of the present invention and embodiment illustrated in fig. 11 may be implemented in base station provided in this embodiment, the base station includes receiver 310, processor 320, transmitter 330, wherein

The transmitter 330, for sending downlink data to terminal device；

The processor 320, for determining for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

The receiver 310 receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the processor 320 is determined；In first time of reception that the processor 320 is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.

In an implementation, transmitter 330 can send the downlink data for being carried on down physical channel to terminal device, after transmission, processor 320 can determine the time of reception (being properly termed as first time of reception) of upstream data corresponding with downlink data transmitted by transmitter 330, wherein, determine first time of reception can also to terminal device send downlink data before carry out, or both and meanwhile handled.Transmitter 230 can send reference signal to base station in the second sending instant before the first sending instant, correspondingly, the reference signal that receiver 310 can be sent in second time of reception before first time of reception, receiving terminal apparatus.After second time of reception received reference signal, processor 320 can carry out channel estimation based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.It, can be in the upstream data of the first time of reception receiving terminal apparatus transmission after the reference signal that 310 receiving terminal apparatus of receiver is sent, wherein specific implementation process can be realized according to method described in step 801-803 in second time of reception.

Optionally, the processor 320, is specifically used for:

Determine that second time of reception is first time of reception for determining of the processor 320 L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiver 310, is specifically used for:

In an implementation, after transmitter 330 sends downlink data to terminal device, processor 320 can determine second time of reception, i.e. the reference signal corresponding time of reception.If with L_RSThe time span of reference signal is indicated, with T₃Indicate first time of reception, T₄Indicated for second time of reception, then T₄=T₃-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.

The processor 320, is specifically used for:

Determine that first time of reception is that the sending instant for the downlink data that the transmitter 330 is sent delays T_DelayAt the time of, the T_DelayFor preset time delay interval.

In an implementation, after transmitter 330 sends downlink data to terminal device, processor 320 can determine for first time of reception according to the sending instant of downlink data, wherein first time of reception can be sending instant and delay T_DelayAt the time of corresponding to afterwards.

Time delay interval T_DelayIt is predetermined to can be standard, base station can be by time delay interval T_DelayStorage.Transmitter 330 to terminal send downlink data after, processor 320 you can learn that downlink data sending instant, the sending instant of downlink data can be delayed into T_DelayAt the time of as base station receiving terminal apparatus send the HARQ-ACK information for being carried on PUCCH or PUSCH first time of reception, wherein T_DelayAs preset time delay interval.

Optionally, T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device, wherein specific implementation process can be realized according to method described in situation one in step 801.

Optionally, the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI, wherein, specific implementation process can be realized according to method described in situation two, three in step 801.

Optionally, the upstream data is the data of PUCCH carrying, and the reference signal is the demodulated reference signal demodulated for the PUCCH, and the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor 320, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter 330 is sent delays 4 symbols；

The receiver 310, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter 330 is sent delays 3 symbols, Receive the reference signal that the terminal device is sent；At the time of the sending instant for the downlink data that the transmitter 330 is sent delays 4 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

In an implementation, after transmitter 330 sends downlink data to terminal device, processor 320 can determine the time of reception for the data for being carried on PUCCH that terminal device is sent according to sending instant, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this point, the TTI of downlink data is 1 symbol, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 4 symbols.After transmitter 330 sends downlink data to terminal device, processor 320 can also determine the time of reception for the reference signal that terminal device is sent, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, receiver 310 can be at the time of the sending instant of downlink data delays 3 symbols, the reference signal of receiving terminal apparatus transmission.310 receiving terminal apparatus of receiver send reference signal after, transmitter 330 can at the time of the sending instant of downlink data delays 4 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

Optionally, the upstream data is the data of PUCCH carrying, and the reference signal is the demodulated reference signal demodulated for the PUCCH, and the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor 320, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter 330 is sent delays 8 symbols；

The receiver 310, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter 330 is sent delays 7 symbols or 6 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant for the downlink data that the transmitter 330 is sent delays 8 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.

In an implementation, after transmitter 330 sends downlink data to terminal device, processor 320 can determine the time of reception for the data for being carried on PUCCH that terminal device is sent according to sending instant, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this point, the TTI of downlink data is 2 symbols, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 8 symbols.Transmitter 330 sends lower line number to terminal device According to rear, processor 320 can also determine the time of reception for the reference signal that terminal device is sent, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, receiver 310 can be at the time of the sending instant of downlink data delays 7 symbols, the reference signal that receiving terminal apparatus is sent, when the time span of reference signal is 2 symbols, receiver 310 can be at the time of the sending instant of downlink data delays 6 symbols, the reference signal that receiving terminal apparatus is sent.310 receiving terminal apparatus of receiver send reference signal after, transmitter 330 can at the time of the sending instant of downlink data delays 8 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

Based on identical design, the embodiment of the invention also provides a kind of terminal devices, and as shown in figure 13, process described in Fig. 4, Fig. 6 and Fig. 7 of the present invention may be implemented in terminal device provided in this embodiment, and the terminal device includes:

Receiving module 1310, for receiving the downlink data of base station transmission；

Determining module 1320, for determining the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

Sending module 1330, for the second sending instant before first sending instant that the determining module is determined, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the determining module is determined, the base station Xiang Suoshu sends upstream data, wherein the upstream data is the data of uplink physical channel carrying.

In an implementation, after base station is carried on the downlink data of down physical channel to terminal device transmission, receiving module 1310 can receive the downlink data of base station transmission, and determining module 1320 can determine the sending instant (being properly termed as the first sending instant) of upstream data corresponding with downlink data.After receiving module 1310 receives the downlink data of base station transmission, it is demodulated, and according to demodulation result collocating uplink data, therefore, terminal device needs just be initially configured upstream data after upstream data demodulation.In addition, sending mould Block 1330 needs to send the reference signal demodulated for uplink physical channel to base station, carries out channel estimation so that base station is based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.Sending module 1330 is in the second sending instant, and after sending reference signal to base station, sending module 1330 can also send upstream data to base station in the first sending instant, wherein specific implementation process can be realized according to method described in step 401-403.

Optionally, the determining module 1320, is also used to:

Determine that second sending instant is first sending instant determined of the determining module 1320 L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The sending module 1330, is specifically used for:

In second sending instant that the determining module 1320 is determined, the base station Xiang Suoshu sends the reference signal.

In an implementation, after terminal device receives the downlink data that base station is sent, determining module 1320 can determine the second sending instant, the i.e. corresponding sending instant of reference signal.If with L_RSThe time span of reference signal is indicated, with T₁Indicate the first sending instant, T₂Indicate the second sending instant, then T₂=T₁-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.After determining module 1320 determines the second sending instant, sending module 1330 can send the reference signal that configuration is completed to base station in the second sending instant.

The determining module 1320, is specifically used for:

In an implementation, after terminal device receives downlink data, terminal device will judge whether the downlink data that receives is correct, and in turn, sending module 1330 can be to base station feedback HARQ-ACK information.

Time delay interval T_DelayIt is predetermined to can be standard, it can be by time delay interval T_DelayStorage.After terminal device receives downlink data, determining module 1320 you can learn that downlink data the time of reception, the time of reception of downlink data can be delayed into T_DelayAt the time of as sending module 1330 to base station send be carried on PUCCH or PUSCH HARQ-ACK information the first sending instant, wherein T_DelayAs in advance The time delay interval of setting.

The determining module 1320, is specifically used for:

The sending module 1330, is specifically used for:

In an implementation, after terminal device receives the downlink data of base station transmission, sending module 1330 can send the upstream data for being carried on PUCCH to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 1 symbol, determining module 1320 is to determine that the first sending instant is at the time of the time of reception of downlink data delaying 4 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling of PDSCH carrying.After terminal device receives the downlink data of base station transmission, the acceptable really directional base station of determining module 1320 sends the sending instant of reference signal, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, it can be at the time of the time of reception of downlink data delaying 3 symbols, sending module 1330 sends reference signal to base station.After sending module 1330 sends reference signal to base station, it can also send and correspond to base station at the time of the time of reception of downlink data delaying 4 symbols In the upstream data for being carried on PUCCH of downlink data.

The determining module 1320, is specifically used for:

The sending module 1330, is specifically used for:

At the time of the time of reception of the downlink data delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception of the downlink data delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.

In an implementation, after terminal device receives the downlink data of base station transmission, sending module 1330 can send the upstream data for being carried on PUCCH to base station, wherein, (i.e. the first sending instant) can be the time span for postponing the TTI of 4 times of downlink datas than the time of reception at the time of sending upstream data, at this point, the TTI of downlink data is 2 symbols, determining module 1320 is to determine that the first sending instant is at the time of the time of reception of downlink data delaying 8 symbols.Wherein, downlink data is the data or downlink semi-continuous scheduling release signaling of PDSCH carrying.After terminal device receives the downlink data of base station transmission, the acceptable really directional base station of determining module 1320 sends the sending instant of reference signal, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, it can be at the time of the time of reception of downlink data delaying 7 symbols, sending module 1330 sends reference signal to base station, when the time span of reference signal is 2 symbols, it can be at the time of the time of reception of downlink data delaying 6 symbols, sending module 1330 sends reference signal to base station.After sending module 1330 sends reference signal to base station, the upstream data for being carried on PUCCH for corresponding to downlink data can also be sent to base station at the time of the time of reception of downlink data delaying 8 symbols.

Based on identical design, the embodiment of the invention also provides a kind of base stations, and as shown in figure 14, process shown in Fig. 8, Figure 10 and Figure 11 of the present invention may be implemented in base station provided in this embodiment, and the base station includes:

Sending module 1410, for sending downlink data to terminal device；

Determining module 1420 determined for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

Receiving module 1430 receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the determining module 1420 is determined；In first time of reception that the determining module 1420 is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.

In an implementation, sending module 1410 can send the downlink data for being carried on down physical channel to terminal device, after transmission, determining module 1420 can determine the time of reception (being properly termed as first time of reception) of upstream data corresponding with transmitted downlink data, wherein, determine first time of reception can also to terminal device send downlink data before carry out, or both and meanwhile handled.Sending module 1330 can send reference signal to base station in the second sending instant before the first sending instant, correspondingly, the reference signal that receiving module 1430 can be sent in second time of reception before first time of reception, receiving terminal apparatus.After second time of reception received reference signal, base station can carry out channel estimation based on the reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.Receiving module 1430, can also be in the upstream data of the first time of reception receiving terminal apparatus transmission, wherein concrete implementation process can be realized according to method described in step 801-803 after the reference signal that second time of reception, receiving terminal apparatus send.

Optionally, the determining module 1420, is also used to:

Determine that second time of reception is first time of reception for determining of the determining module 1420 L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiving module 1430, is specifically used for:

In second time of reception that the determining module 1420 is determined, the reference signal that the terminal device is sent is received.

In an implementation, after base station sends downlink data to terminal device, determining module 1420 can determine second time of reception, i.e. the reference signal corresponding time of reception.If with L_RSThe time span of reference signal is indicated, with T₃Indicate first time of reception, T₄Indicated for second time of reception, then T₄=T₃-L_RS.In this way, reference signal is adjacent in time with upstream data, it can be ensured that the channel value on running time-frequency resource that the upstream data that base station is estimated according to reference signal occupies is more accurate.

Optionally, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the corresponding hybrid automatic repeat-request of the downlink data Correct response HARQ-ACK information；

The determining module 1420, is specifically used for:

In an implementation, after base station sends downlink data to terminal device, determining module 1410 can determine for first time of reception according to the sending instant of downlink data, wherein first time of reception can be sending instant and delay T_DelayAt the time of corresponding to afterwards.

Time delay interval T_DelayIt is predetermined to can be standard, base station can be by time delay interval T_DelayStorage.Base station to terminal send downlink data after, determining module you can learn that downlink data sending instant, the sending instant of downlink data can be delayed into T_DelayAt the time of as base station receiving terminal apparatus send the HARQ-ACK information for being carried on PUCCH or PUSCH first time of reception, wherein T_DelayAs preset time delay interval.

Optionally, T_DelaySetting need to consider terminal device the processing time (including downlink data demodulation time and upstream data the generation time), that is to say, that T_Delay≥T_process, wherein T_processIt is the processing time of terminal device, wherein concrete implementation process can be realized according to method described in situation one in step 801.

The determining module 1420, is specifically used for:

The receiving module 1430, is specifically used for:

In an implementation, after base station sends downlink data to terminal device, determining module 1420 can be according to hair Send the time of reception for the data for being carried on PUCCH for determining that terminal device is sent constantly, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this time, the TTI of downlink data is 1 symbol, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 4 symbols.After base station sends downlink data to terminal device, determining module can also determine the time of reception for the reference signal that terminal device is sent, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 1 symbol, the time span of reference signal can be 1 symbol, thus, receiving module 1430 can be at the time of the sending instant of downlink data delays 3 symbols, the reference signal of receiving terminal apparatus transmission.1430 receiving terminal apparatus of receiving module send reference signal after, can also at the time of the sending instant of downlink data delays 4 symbols receiving terminal apparatus send the upstream data for being carried on PUCCH corresponding to downlink data.

The determining module 1420, is specifically used for:

The receiving module 1430, is specifically used for:

In an implementation, after base station sends downlink data to terminal device, determining module 1420 can determine the time of reception for the data for being carried on PUCCH that terminal device is sent according to sending instant, wherein, (i.e. first time of reception) can be the time span for postponing the TTI of 4 times of downlink datas than sending instant at the time of receiving upstream data, at this point, the TTI of downlink data is 2 symbols, that is, at the time of determining that first time of reception was that the sending instant of downlink data delays 8 symbols.After base station sends downlink data to terminal device, determining module 1420 can also determine the time of reception for the reference signal that terminal device is sent, preferably, the length of reference signal is less than or equal to the time span of PUCCH, when the time span of PUCCH is 2 symbols, the time span of reference signal can be 1 symbol, it may be 2 symbols, when the time span of reference signal is 1 symbol, receiving module 1430 can be at the time of the sending instant of downlink data delays 7 symbols, the reference signal that receiving terminal apparatus is sent, when the time span of reference signal is 2 symbols, receiving module 1430 can be at the time of the sending instant of downlink data delays 6 symbols, the reference signal that receiving terminal apparatus is sent.It, can be with after the reference signal that 1430 receiving terminal apparatus of receiving module is sent The upstream data for being carried on PUCCH corresponding to downlink data that receiving terminal apparatus is sent at the time of the sending instant of downlink data delays 8 symbols.

Present embodiments provide a kind of system for transmitting upstream data, the process of the illustrated embodiment of Fig. 4,6,7,8,10,11,12 of the present invention may be implemented in system provided in this embodiment, terminal device is the terminal device of Fig. 2,13 illustrated embodiments, base station is the base station of Fig. 3,14 illustrated embodiments, the system comprises terminal devices and base station, in which:

The base station for sending downlink data to terminal device, and determined for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；Second time of reception before first time of reception receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station；In first time of reception, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying；

In an implementation, base station can send the downlink data for being carried on down physical channel to terminal device, and can determine the time of reception (being properly termed as first time of reception) of upstream data corresponding with transmitted downlink data.After base station is carried on the downlink data of down physical channel to terminal device transmission, terminal device can receive the downlink data of base station transmission, and determine the sending instant (being properly termed as the first sending instant) of upstream data corresponding with received downlink data.After terminal device receives the downlink data of base station transmission, it is demodulated, and according to demodulation result collocating uplink data, therefore, terminal device needs just be initially configured upstream data after upstream data demodulation.In addition, terminal device needs to send the reference signal demodulated for uplink physical channel to base station, channel estimation is carried out so that base station is based on the reference signal, and entangle The wireless channel decline of positive uplink physical channel experience, and then preferably demodulate upstream data.Terminal device can send reference signal to base station in the second sending instant before the first sending instant, correspondingly, the reference signal that base station can be sent in second time of reception before first time of reception, receiving terminal apparatus.Base station can carry out channel estimation based on the reference signal after second time of reception received reference signal, and correct the wireless channel decline of uplink physical channel experience, and then preferably demodulate upstream data.In the second sending instant, after terminal device sends reference signal to base station, upstream data can be sent to base station in the first sending instant, wherein, upstream data can be the data of uplink physical channel carrying, for example, being carried on ascending control information (including HARQ-ACK information and/or the CSI of PUCCH or PUSCH, alternatively, being carried on the uplink business data and/or control information feedback of PUSCH.In second time of reception, after the reference signal that base station receiving terminal apparatus is sent, the upstream data that can be sent in the first time of reception receiving terminal apparatus, wherein, upstream data can be the data of uplink physical channel carrying, for example, being carried on ascending control information (including HARQ-ACK information and/or the CSI of PUCCH or PUSCH, alternatively, being carried on the uplink business data and/or control information feedback of PUSCH.The realization process of the system can be realized according to method described in step 1201-1206, step 401-403 and step 801-803.

Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment may be implemented by hardware, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer readable storage medium, storage medium mentioned above can be read-only 1, disk or CD etc..

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, and all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims

A method of transmission upstream data, which is characterized in that the described method includes:

Terminal device receives the downlink data that base station is sent, and determines the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

Second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, wherein the reference signal demodulates the upstream data for the base station；

The terminal device sends the upstream data in first sending instant, the base station Xiang Suoshu, wherein the upstream data is the data of uplink physical channel carrying.
The method according to claim 1, wherein the time span of the uplink physical channel, less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.
Method according to claim 1 or 2, which is characterized in that second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, comprising:

The terminal device determines that second sending instant is first sending instant L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The terminal device sends the reference signal in second sending instant, the base station Xiang Suoshu.
Method described in any one of -3 according to claim 1, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The terminal device determines first sending instant according to the downlink data, comprising:

The terminal device determines that first sending instant is the time of reception of the downlink data to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.
According to the method described in claim 4, it is characterized in that, the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
Method described in any one of -3 according to claim 1, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.
Method described in any one of -5 according to claim 1, which is characterized in that the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, and the TTI of the downlink data is 1 symbol, institute The time span for stating PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The terminal device determines first sending instant according to the downlink data, comprising:

The terminal device determines that first sending instant is at the time of the time of reception of the downlink data delaying 4 symbols；

Second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, comprising:

For the terminal device at the time of time of reception of the downlink data delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；

The terminal device sends upstream data in first sending instant, the base station Xiang Suoshu, comprising:

For the terminal device at the time of time of reception of the downlink data delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
Method described in any one of -5 according to claim 1, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The terminal device determines first sending instant according to the downlink data, comprising:

The terminal device determines that first sending instant is at the time of the time of reception of the downlink data delaying 8 symbols；

Second sending instant of the terminal device before first sending instant, the base station Xiang Suoshu send reference signal, comprising:

For the terminal device at the time of time of reception of the downlink data delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；

The terminal device sends upstream data in first sending instant, the base station Xiang Suoshu, comprising:

For the terminal device at the time of time of reception of the downlink data delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
A method of transmission upstream data, which is characterized in that the described method includes:

Base station sends downlink data to terminal device, and determines for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

Second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station；

The base station receives the upstream data that the terminal device is sent in first time of reception, wherein the upstream data is the data of uplink physical channel carrying.
According to the method described in claim 9, the time span of the reference signal is less than or equal to the time span of the uplink physical channel it is characterized in that, the time span of the uplink physical channel is less than 0.5 millisecond.
Method according to claim 9 or 10, which is characterized in that second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, comprising:

The base station determines that second time of reception is first time of reception L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The base station receives the reference signal that the terminal device is sent in second time of reception.
The method according to any one of claim 9-11, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The base station determines first time of reception according to the downlink data, comprising:

The base station determines that first time of reception is that the sending instant of the downlink data delays T_DelayAt the time of, the T_DelayFor preset time delay interval.
According to the method for claim 12, which is characterized in that the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
The method according to any one of claim 9-11, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.
The method according to any one of claim 9-13, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The base station determines first time of reception, comprising:

At the time of the base station determines that first time of reception is that the sending instant of the downlink data delays 4 symbols；

Second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, comprising:

The base station receives the reference signal that the terminal device is sent at the time of the sending instant of the downlink data delays 3 symbols；

The base station receives the upstream data that the terminal device is sent in first time of reception, comprising:

The base station receives the upstream data for being carried on PUCCH that the terminal device is sent at the time of the sending instant of the downlink data delays 4 symbols.
The method according to any one of claim 9-13, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The base station determines first time of reception, comprising:

At the time of the base station determines that first time of reception is that the sending instant of the downlink data delays 8 symbols；

Second time of reception of the base station before first time of reception receives the reference signal that the terminal device is sent, comprising:

The base station receives the reference signal that the terminal device is sent at the time of the sending instant of the downlink data delays 7 symbols or 6 symbols；

The base station receives the upstream data that the terminal device is sent in first time of reception, comprising:

The base station receives the upstream data for being carried on PUCCH that the terminal device is sent at the time of the sending instant of the downlink data delays 8 symbols.
A kind of terminal device, the terminal device include receiver, processor, transmitter, in which:

The receiver, for receiving the downlink data of base station transmission；

The processor, the downlink data for being received according to the receiver determine the first sending instant, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

The transmitter, for the second sending instant before first sending instant that the processor is determined, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the processor is determined, the base station Xiang Suoshu sends the upstream data, wherein the upstream data is the data of uplink physical channel carrying.
Terminal device according to claim 17, which is characterized in that for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.
Terminal device described in 7 or 18 according to claim 1, which is characterized in that the processor is specifically used for:

Determine that second sending instant is first sending instant determined of processor L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The transmitter, is specifically used for:

In second sending instant that the processor is determined, the base station Xiang Suoshu sends the reference signal.
Terminal device described in any one of 7-19 according to claim 1, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The processor, is specifically used for:

Determine that first sending instant is the time of reception for the downlink data that the receiver receives to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.
Terminal device according to claim 20, which is characterized in that the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
Terminal device described in any one of 7-19 according to claim 1, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.
Terminal device described in any one of 7-21 according to claim 1, it is characterized in that, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor, is specifically used for:

Determine that first sending instant is at the time of the time of reception for the downlink data that the receiver receives delaying 4 symbols；

The transmitter, is specifically used for:

At the time of the time of reception for the downlink data that the receiver receives delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver receives delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
Terminal device described in any one of 7-21 according to claim 1, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor, is specifically used for:

Determine that first sending instant is to prolong the time of reception for the downlink data that the receiver receives Afterwards at the time of 8 symbols；

The transmitter, is specifically used for:

At the time of the time of reception for the downlink data that the receiver receives delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception for the downlink data that the receiver receives delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
A kind of base station, which is characterized in that the base station includes receiver, processor, transmitter, in which:

The transmitter, for sending downlink data to terminal device；

The processor, for determining for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

The receiver receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the processor is determined；In first time of reception that the processor is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.
Base station according to claim 25, which is characterized in that for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.
The base station according to claim 25 or 26, which is characterized in that the processor is specifically used for:

Determine that second time of reception is first time of reception for determining of processor L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiver, is specifically used for:

In second time of reception, the reference signal that the terminal device is sent is received.
The base station according to any one of claim 25-27, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The processor, is specifically used for:

Determine that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays T_DelayAt the time of, the T_DelayFor preset time delay interval.
Base station according to claim 28, which is characterized in that the T_DelayFor 4*L_DL, the L_DL For the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
The base station according to any one of claim 25-27, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.
The base station according to any one of claim 25-29, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The processor, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays 4 symbols；

The receiver, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter is sent delays 3 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant for the downlink data that the transmitter is sent delays 4 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.
The base station according to any one of claim 25-29, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The processor, is specifically used for:

At the time of determining that first time of reception is that the sending instant for the downlink data that the transmitter is sent delays 8 symbols；

The receiver, is specifically used for:

At the time of the sending instant for the downlink data that the transmitter is sent delays 7 symbols or 6 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant for the downlink data that the transmitter is sent delays 8 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.
A kind of terminal device, which is characterized in that the terminal device includes:

Receiving module, for receiving the downlink data of base station transmission；

Determining module, for determining the first sending instant according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；

Sending module, for the second sending instant before first sending instant that the determining module is determined, the base station Xiang Suoshu sends reference signal, wherein the reference signal demodulates the upstream data for the base station；In first sending instant that the determining module is determined, the base station Xiang Suoshu sends the upstream data, wherein the upstream data is the data of uplink physical channel carrying.
Terminal device according to claim 33, which is characterized in that for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.
The terminal device according to claim 33 or 34, which is characterized in that the determining module is also used to:

Determine that second sending instant is first sending instant determined of determining module L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The sending module, is specifically used for:

In second sending instant that the determining module is determined, the base station Xiang Suoshu sends the reference signal.
The terminal device according to any one of claim 33-35, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The determining module, is specifically used for:

Determine that first sending instant is the time of reception of the downlink data to delay T_DelayAt the time of, the T_DelayFor preset time delay interval.
Terminal device according to claim 36, which is characterized in that the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
The terminal device according to any one of claim 33-35, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first sending instant, and the upstream data includes channel state information CSI.
The terminal device according to any one of claim 33-37, it is characterized in that, the upstream data is the data of Physical Uplink Control Channel PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The determining module, is specifically used for:

Determine that first sending instant is at the time of the time of reception of the downlink data delaying 4 symbols；

The sending module, is specifically used for:

At the time of the time of reception of the downlink data delaying 3 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception of the downlink data delaying 4 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
The terminal device according to any one of claim 33-37, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 2 symbols, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The determining module, is specifically used for:

Determine that first sending instant is at the time of the time of reception of the downlink data delaying 8 symbols；

The sending module, is specifically used for:

At the time of the time of reception of the downlink data delaying 7 symbols or 6 symbols, the base station Xiang Suoshu sends the reference signal；At the time of the time of reception of the downlink data delaying 8 symbols, the base station Xiang Suoshu sends the upstream data for being carried on PUCCH.
A kind of base station, which is characterized in that the base station includes:

Sending module, for sending downlink data to terminal device；

Determining module, for determining for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；

Receiving module receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station for second time of reception before first time of reception that the determining module is determined；In first time of reception that the determining module is determined, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying.
Base station according to claim 41, which is characterized in that for the time span of the uplink physical channel less than 0.5 millisecond, the time span of the reference signal is less than or equal to the time span of the uplink physical channel.
The base station according to claim 41 or 42, which is characterized in that the determining module is also used to:

Determine that second time of reception is first time of reception for determining of determining module L forward_RSAt the time of, the L_RSFor the time span of the reference signal；

The receiving module, is specifically used for:

In second time of reception that the determining module is determined, the reference signal that the terminal device is sent is received.
The base station according to any one of claim 41-43, it is characterized in that, the downlink data is the data or downlink semi-continuous scheduling release signaling of Physical Downlink Shared Channel PDSCH carrying, and the upstream data is the correct response HARQ-ACK information of the corresponding hybrid automatic repeat-request of the downlink data；

The determining module, is specifically used for:

Determine that first time of reception is that the sending instant of the downlink data delays T_DelayAt the time of, the T_DelayFor preset time delay interval.
Base station according to claim 44, which is characterized in that the T_DelayFor 4*L_DL, the L_DLFor the Transmission Time Interval TTI of the downlink data, the TTI of the downlink data is less than 0.5 millisecond.
The base station according to any one of claim 41-43, which is characterized in that the downlink data is high-level signaling, and the high-level signaling includes being used to indicate the signaling of first time of reception, and the upstream data includes channel state information CSI.
The base station according to any one of claim 41-45, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 1 symbol, and the time span of the reference signal is 1 symbol；

The determining module, is specifically used for:

At the time of determining that first time of reception is that the sending instant of the downlink data delays 4 symbols；

The receiving module, is specifically used for:

At the time of the sending instant of the downlink data delays 3 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant of the downlink data delays 4 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.
The base station according to any one of claim 41-45, it is characterized in that, the upstream data is the data of PUCCH carrying, the TTI of the downlink data is 1 symbol, the time span of the PUCCH is 2 symbols, and the time span of the reference signal is 1 symbol or 2 symbols；

The determining module, is specifically used for:

At the time of determining that first time of reception is that the sending instant of the downlink data delays 8 symbols；

The receiving module, is specifically used for:

At the time of the sending instant of the downlink data delays 7 symbols or 6 symbols, the reference signal that the terminal device is sent is received；At the time of the sending instant of the downlink data delays 8 symbols, the upstream data for being carried on PUCCH that the terminal device is sent is received.
A kind of system for transmitting upstream data, which is characterized in that the system comprises terminal devices and base station, in which:

The base station for sending downlink data to the terminal device, and determined for first time of reception, wherein at the time of first time of reception is that the base station receives the upstream data corresponding with the downlink data that the terminal device is sent；Second time of reception before first time of reception receives the reference signal that the terminal device is sent, wherein the reference signal demodulates the upstream data for the base station；In first time of reception, the upstream data that the terminal device is sent is received, wherein the upstream data is the data of uplink physical channel carrying；

The terminal device, the downlink data sent for receiving the base station, and the first sending instant is determined according to the downlink data, wherein at the time of first sending instant is that the terminal device sends upstream data corresponding with the downlink data to the base station；The second sending instant before first sending instant, the base station Xiang Suoshu send reference signal；In first sending instant, the base station Xiang Suoshu sends the upstream data.