CN107926023A

CN107926023A - Communication means and the network equipment

Info

Publication number: CN107926023A
Application number: CN201580081961.2A
Authority: CN
Inventors: 贺传峰; 曲秉玉; 权威; 邵家枫; 苗金华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2015-07-27
Filing date: 2015-07-27
Publication date: 2018-04-17
Anticipated expiration: 2035-07-27
Also published as: CN107926023B; WO2017015813A1

Abstract

The embodiment of the present invention proposes a kind of communication means and the network equipment, and this method includes：First network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein, the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.The communication means and the network equipment of the embodiment of the present invention, first network equipment had not only sent DMRS in chronomere but also had sent SRS, and the frequency domain resource of DMRS and the frequency domain resource of SRS are overlapping, second network equipment allow according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and can realize the offset estimation in the chronomere.During scene applied to short TTI, it is possible to achieve the offset estimation in the case of short TTI.

Description

Communication means and the network equipment

Technical field

The present embodiments relate to the communications fields, and more particularly, to a kind of communication means and the network equipment.

Background technique

In long term evolution (Long Term Evolution, LTE) system, the length of subframe is 1ms.Existing Physical Uplink Shared Channel (Physical Uplink Share Channel,) and Physical Downlink Shared Channel (Physical Downlink Share Channel PUSCH, PDSCH) length for the Transmission Time Interval (Transmission Time Interval, TTI) dispatched is 1ms.In order to reduce the time delay of system, to meet the requirement of low time delay business, TTI length can be shortened in physical layer, user data is carried for example, by using the TTI length of 0.5ms, that is the TTI length of PUSCH and PDSCH scheduling is 0.5ms, so as to shorten round-trip delay (Round-Trip Time, RTT), shorter transmitting data in physical layer time delay is realized.

In the frame structure of the PUSCH of 1ms TTI, 1ms TTI includes two 0.5ms time slots, one symbol transmission demodulated reference signal of each time slot (Demodulate Reference Signal, DMRS).Base station is demodulated according to the upstream data that DMRS transmits user equipment (User Equipment, UE).Also, base station preferably can carry out channel estimation to TTI by the DMRS of two time slots in TTI, especially offset estimation can be carried out to TTI by two DMRS in TTI, to correct the frequency shift (FS) of uplink.However when carrying out PUSCH transmission using the short TTI such as 0.5ms TTI, only one time slot is used to send PUSCH in a TTI, i.e. only one DMRS in a TTI, the effect of channel estimation is poor, and cannot achieve offset estimation.

Summary of the invention

The embodiment of the invention provides a kind of communication means and the network equipments, can preferably realize the channel estimation in the case of short TTI, especially realize the offset estimation in the case of short TTI.

In a first aspect, providing a kind of communication means, which comprises

First network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

With reference to first aspect, in a kind of implementation of first aspect, when the chronomere is corresponding Scheduling has a Physical Uplink Shared Channel PUSCH in the resource of domain, and sending on the PUSCH has DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, before the first network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the method also includes:

The first network equipment determines the first SRS parameter, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, the first SRS parameter be it is a set of in more set SRS parameters, the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

The first network equipment determines that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, the first network equipment determines the first SRS parameter, comprising:

The first network equipment receives the first instruction information that second network equipment is sent, and the first instruction information is used to indicate the first SRS parameter；

The first network equipment determines the first SRS parameter according to the first instruction information.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, the first network equipment receives the first instruction information that second network equipment is sent, comprising:

The first network equipment receives the first instruction information that second network equipment is sent by physical downlink control channel PDCCH, further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, in the first network equipment configured with it is described cover SRS parameters,

The first network equipment determines the first SRS parameter, comprising:

The first network equipment according to second network equipment be the first network equipment scheduled in PUSCH frequency domain, select the first SRS parameter from more set SRS parameters.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in the another kind of first aspect In implementation, the first network equipment determines that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS, comprising:

The period of SRS is sent when the first network equipment is according to the progress short TTI transmission that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine the chronomere, and scheduling has a PUSCH in the corresponding time-domain resource of the chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

With reference to first aspect or its above-mentioned corresponding implementation it is any, in another implementation of first aspect, the chronomere be a TTI, a time slot or a subframe.

Second aspect provides a kind of communication means, which comprises

First network equipment is the period of the additional demodulated reference signal DMRS of transmission of the first network device configuration according to second network equipment, or first network equipment indicates information according to from the received third of second network equipment, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit.

In conjunction with second aspect, in a kind of implementation of second aspect, the third instruction information is that the first network equipment is received from second network equipment by physical downlink control channel PDCCH, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, there is no the detection reference signal SRS of second network equipments configuration to send in the corresponding time-domain resource of the first time unit.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the method also includes:

The first network equipment sends DMRS and SRS in the second chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, scheduling has Physical Uplink Shared Channel in the corresponding time-domain resource of second chronomere Sending on PUSCH, the PUSCH has a DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, before the first network equipment sends DMRS and SRS in the second chronomere, the method also includes:

The first network equipment determines the first SRS parameter, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in second chronomere, the first SRS parameter be it is a set of in more set SRS parameters, the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

The first network equipment determines that sending the DMRS and frequency domain resource has second chronomere of overlapping SRS with the DMRS.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the first network equipment determines the first SRS parameter, comprising:

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the first network equipment receives the first instruction information that second network equipment is sent, comprising:

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, in the first network equipment configured with it is described cover SRS parameters,

The first network equipment determines the first SRS parameter, comprising:

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the first network equipment determines that sending DMRS and frequency domain resource has second chronomere of overlapping SRS with the DMRS, comprising:

The first network equipment is the period of the transmission SRS of the first network device configuration according to second network equipment, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine second chronomere, and scheduling has a PUSCH in the corresponding time-domain resource of second chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, the first time unit is a TTI, a time slot or a subframe.

In conjunction with any of second aspect or its above-mentioned corresponding implementation, in another implementation of second aspect, second chronomere is a TTI, a time slot or a subframe.

The third aspect provides a kind of communication means, which comprises

Second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with the third aspect, in a kind of implementation of the third aspect, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, before second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the method also includes:

Second network equipment sends the first instruction information for being used to indicate the first SRS parameter to first network equipment, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, the first SRS parameter is one in more set SRS parameters, and the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, demodulated reference signal is received in a chronomere in second network equipment After DMRS and detection reference signal SRS, the method also includes:

Second network equipment carries out channel estimation according to the DMRS and the SRS, to the chronomere.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, second network equipment sends the first instruction information for being used to indicate the first SRS parameter to first network equipment, comprising:

Second network equipment sends the first instruction information for being used to indicate the first SRS parameter by physical downlink control channel PDCCH to the first network equipment, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, the method also includes:

Second network equipment is that the first network device configuration carries out the period that SRS is sent when short TTI transmission, or second network equipment sends to the first network equipment and is used to indicate the second indication information for sending SRS, and the chronomere that the DMRS and frequency domain resource have overlapping SRS with the DMRS is sent in order to which the first network equipment is determining.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with any of the third aspect or its above-mentioned corresponding implementation, in another implementation of the third aspect, the chronomere is a TTI, a time slot or a subframe.

Fourth aspect provides a kind of communication means, which comprises

Second network equipment is the period that first network device configuration sends additional demodulated reference signal DMRS, or second network equipment sends third to the first network equipment and indicates information, in order to which the first network equipment indicates information according to the period or the third, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit；

Second network equipment receives the additional DMRS that the first network equipment is sent in the first time unit, second network equipment carries out channel estimation according to another DMRS present on the additional DMRS and the first time unit, to the first time unit.

In conjunction with fourth aspect, in a kind of implementation of fourth aspect, the third instruction information is that second network equipment is sent by physical downlink control channel PDCCH to the first network equipment, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, there is no the detection reference signal SRS of second network equipments configuration to send in the corresponding time-domain resource of the first time unit.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, the method also includes:

Second network equipment receives DMRS and SRS in the second chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of second chronomere, sending on the PUSCH has a DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, before second network equipment receives DMRS and SRS in the second chronomere, the method also includes:

Second network equipment sends the first instruction information for being used to indicate the first SRS parameter to first network equipment, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in second chronomere, the first SRS parameter is one in more set SRS parameters, and the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, after second network equipment receives DMRS and SRS in the second chronomere, the method also includes:

Second network equipment carries out channel estimation according to the DMRS and the SRS, to second chronomere.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, second network equipment sends the first instruction information for being used to indicate the first SRS parameter to first network equipment, comprising:

Second network equipment sends the first instruction information for being used to indicate the first SRS parameter by physical downlink control channel PDCCH to the first network equipment, further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

Second network equipment is that the first network device configuration carries out the period that SRS is sent when short TTI transmission, or second network equipment sends to the first network equipment and is used to indicate the second indication information for sending SRS, and second chronomere that the DMRS and frequency domain resource have overlapping SRS with the DMRS is sent in order to which the first network equipment is determining.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, the first time unit is a TTI, a time slot or a subframe.

In conjunction with any of fourth aspect or its above-mentioned corresponding implementation, in another implementation of fourth aspect, second chronomere is a TTI, a time slot or a subframe.

5th aspect, provides a kind of first network equipment, comprising:

Sending module, for sending demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with the 5th aspect, in a kind of implementation of the 5th aspect, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another implementation in, the first network equipment further include:

First determining module, for before the sending module sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, determine the first SRS parameter, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, the first SRS parameter be it is a set of in more set SRS parameters, the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another kind In implementation, the first network equipment further include:

Second determining module, for before the sending module sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, determining that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS.

Receiving module, the first instruction information sent for receiving second network equipment, the first instruction information are used to indicate the first SRS parameter；

First determining module is specifically used for:

According to the first instruction information, the first SRS parameter is determined.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another implementation in, the receiving module is specifically used for:

The first instruction information that second network equipment is sent by physical downlink control channel PDCCH is received, further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of the 5th aspect or its above-mentioned corresponding implementation, in another implementation of the 5th aspect, in the first network equipment configured with it is described cover SRS parameters,

First determining module is specifically used for:

According to second network equipment be the first network equipment scheduled in PUSCH frequency domain, select the first SRS parameter from more set SRS parameters.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another implementation in, second determining module is specifically used for:

According to the period for the transmission SRS that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine the chronomere, and scheduling has a PUSCH in the corresponding time-domain resource of the chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another implementation in, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with the 5th aspect or its above-mentioned corresponding implementation it is any, the 5th aspect another kind In implementation, the chronomere is a TTI, a time slot or a subframe.

6th aspect, provides a kind of first network equipment, comprising:

Sending module, for the period according to the additional demodulated reference signal DMRS of transmission that second network equipment is the first network device configuration, or the first network equipment indicates information according to the third that second network equipment is sent, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit.

In conjunction with the 6th aspect, in a kind of implementation of the 6th aspect, the third instruction information is that the first network equipment is received from second network equipment by physical downlink control channel PDCCH, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of the 6th aspect or its above-mentioned corresponding implementation, in another implementation of the 6th aspect, there is no the detection reference signal SRS of second network equipments configuration to send in the corresponding time-domain resource of the first time unit.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, the sending module is also used to:

DMRS and SRS is sent in second chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, in another implementation of the 6th aspect, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of second chronomere, sending on the PUSCH has a DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, the first network equipment further include:

First determining module, for before the first network equipment sends DMRS and SRS in the second chronomere, determine the first SRS parameter, wherein, the first SRS parameter is for indicating that the first network equipment sends used parameter in the second chronomere, the first SRS parameter be it is a set of in more set SRS parameters, the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

Second determining module, for before the first network equipment sends DMRS and SRS in the second chronomere, determining that sending DMRS and frequency domain resource has second chronomere of overlapping SRS with the DMRS.

First determining module is specifically used for:

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, the receiving module is specifically used for:

In conjunction with any of the 6th aspect or its above-mentioned corresponding implementation, in another implementation of the 6th aspect, in the first network equipment configured with it is described cover SRS parameters,

First determining module is specifically used for:

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, second determining module is specifically used for:

According to the period for the transmission SRS that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine second chronomere, and scheduling has a PUSCH in the corresponding time-domain resource of second chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, the first time unit be a TTI, a time slot or a subframe.

In conjunction with the 6th aspect or its above-mentioned corresponding implementation it is any, the 6th aspect another implementation in, second chronomere be a TTI, a time slot or a subframe.

7th aspect provides a kind of second network equipment, comprising:

Receiving module, for receiving demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with the 7th aspect, in a kind of implementation of the 7th aspect, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

In conjunction with the 7th aspect or its above-mentioned corresponding implementation it is any, the 7th aspect another implementation in, second network equipment further include:

Sending module, for before second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the the first instruction information for being used to indicate the first SRS parameter is sent to first network equipment, wherein, the first SRS parameter is for indicating that the first network equipment sends used parameter in the chronomere, the first SRS parameter is one in more set SRS parameters, the frequency domain that more set SRS parameter is covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

Channel estimation module, for according to the DMRS and the SRS, carrying out channel estimation to the chronomere after the receiving module receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere.

In conjunction with the 7th aspect or its above-mentioned corresponding implementation it is any, the 7th aspect another implementation in, the sending module is specifically used for:

The the first instruction information for being used to indicate the first SRS parameter is sent to the first network equipment by physical downlink control channel PDCCH, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with the 7th aspect or its above-mentioned corresponding implementation it is any, the 7th aspect another implementation in, further includes:

Configuration module, for carrying out the period for sending SRS when short TTI transmission for the first network device configuration,

Or the sending module is also used to send to be used to indicate to the first network equipment and sends SRS Second indication information,

The chronomere that the DMRS and frequency domain resource have overlapping SRS with the DMRS is sent in order to which the first network equipment is determining.

In conjunction with the 7th aspect or its above-mentioned corresponding implementation it is any, the 7th aspect another implementation in, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with the 7th aspect or its above-mentioned corresponding implementation it is any, the 7th aspect another implementation in, the chronomere be a TTI, a time slot or a subframe.

Eighth aspect provides a kind of second network equipment, comprising:

Processing module, for sending the period of additional demodulated reference signal DMRS for first network device configuration, or second network equipment sends third to the first network equipment and indicates information, in order to which the first network equipment indicates information according to the period or the third, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit；

Receiving module, the additional DMRS sent in the first time unit for receiving the first network equipment；

Channel estimation module, for carrying out channel estimation to the first time unit according to another DMRS present on the additional DMRS and the first time unit.

In conjunction with eighth aspect, in a kind of implementation of eighth aspect, the third instruction information is that second network equipment is sent by physical downlink control channel PDCCH to the first network equipment, further includes the information that second network equipment is Physical Uplink Shared Channel PUSCH scheduled in the first network equipment in the PDCCH.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, there is no the detection reference signal SRS of second network equipments configuration to send in the corresponding time-domain resource of the first time unit.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, the receiving module is also used to:

DMRS and SRS is received in the second chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in the another kind of eighth aspect In implementation, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of second chronomere, and sending on the PUSCH has DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of second chronomere.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, further includes:

Sending module, for before second network equipment receives DMRS and SRS in the second chronomere, the the first instruction information for being used to indicate the first SRS parameter is sent to the first network equipment, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the second chronomere, the first SRS parameter is one in more set SRS parameters, and the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, the channel estimation module is also used to:

After the receiving module receives DMRS and SRS in the second chronomere, according to the DMRS and SRS in second chronomere, channel estimation is carried out to second chronomere.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, the sending module is specifically used for:

The the first instruction information for being used to indicate the first SRS parameter is sent to the first network equipment by physical downlink control channel PDCCH, further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

Or the sending module is also used to send to the first network equipment and is used to indicate the second indication information for sending SRS,

Second chronomere that the DMRS and frequency domain resource have overlapping SRS with the DMRS is sent in order to which the first network equipment is determining.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, the first time unit is a TTI, a time slot or a subframe.

In conjunction with any of eighth aspect or its above-mentioned corresponding implementation, in another implementation of eighth aspect, second chronomere is a TTI, a time slot or a subframe.

9th aspect, provides a kind of network equipment, including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is used to complete the method as described in any one of first aspect or the corresponding implementation of first aspect.

Tenth aspect, provides a kind of network equipment, including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is used to complete the method as described in any one of second aspect or the corresponding implementation of second aspect.

On the one hand tenth, provides a kind of network equipment, including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is used to complete the method as described in any one of the third aspect or the corresponding implementation of the third aspect.

12nd aspect, provides a kind of network equipment, including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is used to complete the method as described in any one of fourth aspect or the corresponding implementation of fourth aspect.

Based on the above-mentioned technical proposal, communication means and the network equipment provided in an embodiment of the present invention, first network equipment had not only sent DMRS in chronomere but also had sent SRS, and the frequency domain resource of DMRS and the frequency domain resource of SRS are overlapped, allow second network equipment according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and the offset estimation in the chronomere may be implemented.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to embodiment or existing skill Attached drawing needed in art description is briefly described, it should be evident that drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, other attached drawings be can also be obtained according to these attached drawings.

Fig. 1 is the schematic architectural diagram using a kind of communication system of the embodiment of the present invention.

Fig. 2 is the schematic flow chart of the communication means of one embodiment of the invention.

Fig. 3 is the schematic flow chart of the communication means of another embodiment of the present invention.

Fig. 4 is the schematic flow chart of the communication means of another embodiment of the invention.

Fig. 5 is the schematic flow chart of the communication means of another embodiment of the invention.

Fig. 6 is the schematic flow chart of the communication means of another embodiment of the invention.

Fig. 7 is the schematic block diagram of first network equipment according to an embodiment of the present invention.

Fig. 8 is another schematic block diagram of first network equipment according to an embodiment of the present invention.

Fig. 9 is the schematic block diagram of second network equipment according to an embodiment of the present invention.

Figure 10 is another schematic block diagram of second network equipment according to an embodiment of the present invention.

Figure 11 is the schematic block diagram of the first network equipment of another embodiment according to the present invention.

Figure 12 is the schematic block diagram of the first network equipment of another embodiment according to the present invention.

Figure 13 is the schematic block diagram of second network equipment of another embodiment according to the present invention.

Figure 14 is the schematic block diagram of second network equipment of another embodiment according to the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art's all other embodiment obtained without creative labor, shall fall within the protection scope of the present invention.

The term " component " that uses in the present specification, " module ", " system " etc. are for indicating computer-related entity, hardware, firmware, the combination of hardware and software, software or software in execution.For example, component can be but not limited to, process, processor, object, executable file, execution thread, program and/or the computer run on a processor.By diagram, the application and calculating equipment run on the computing device can be component.One or more components can reside in process and/or execution thread, and component can be located on a computer and/or be distributed between 2 or more computers.In addition, these components can be executed from the various computer-readable mediums for being stored with various data structures above.Component can for example according to have one or more data groupings (such as from local system, distributed system and/or internetwork another One component interaction two components data, such as the internet by signal and other system interactions) signal communicated by locally and/or remotely process.

It should be understood that, 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, long term evolution (Long Term Evolution, referred to as " LTE ") system, LTE frequency division duplex (Frequency Divisi On 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 "), communication between devices (D2D), inter-machine communication (M2M) and the 5G communication system etc. in future.

The present invention combination network equipment describes each embodiment, and wherein the network equipment can be base station, be also possible to user equipment.

User equipment is referred to as terminal device, including access terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent or user apparatus.Access terminal can be cellular phone, wireless phone, SIP (Session Initiation Protocol, session initiation protocol) phone, WLL (Wireless Local Loop, wireless local loop) it stands, the user equipment in PDA (Personal Digital Assistant, personal digital assistant), the handheld device with wireless communication function, the other processing equipments for calculating equipment or being connected to radio modem, mobile unit, wearable device and future network (such as 5G network).

Base station is used for and mobile device communication, it can be GSM (Global System of Mobile communication, global system for mobile telecommunications) or CDMA (Code Division Multiple Access, CDMA) in BTS (Base Transceiver Station, base station), it is also possible to WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) in NB (NodeB, base station), it can also be the eNB or eNodeB (Evolutional Node B, evolved base station) in LTE Perhaps the network equipment in relay station or access point or mobile unit, wearable device and future network (such as 5G network).

In addition, method, apparatus or the product using standard program and/or engineering technology may be implemented into various aspects of the invention or feature.Term " product " used herein is covered can be from any computer-readable device, carrier or the computer program of medium access.For example, computer-readable medium may include, but be not limited to: magnetic memory device (for example, hard disk, floppy disk or tape etc.), CD is (for example, CD (Compact Disk, compact disk), DVD (Digital Versatile Disk, digital versatile disc) etc.), smart card and flush memory device (such as, EPROM (Erasable Programmable Read-Only Memory, Erarable Programmable Read only Memory), card, stick or Keyed actuator etc.).In addition, various storage media described herein can represent one or more equipment and/or other machine readable medias for storing information.Term " machine readable media " may include but be not limited to, wireless channel and the various other media that can be stored, include and/or carry instruction and/or data.

Fig. 1 shows a kind of schematic architectural diagram of communication system using the embodiment of the present invention.As shown in Figure 1, the communication system 100 may include that base station 102 and user equipment 104~114 (being referred to as UE in figure) pass through wireless connection or wired connection or other means connection.Fig. 1 is the rough schematic view illustrated, and can also include other network equipments in communication system 100, not drawn in Fig. 1.

In existing LTE system, the length of the TTI of PUSCH scheduling is 1ms.Wherein, 1ms TTI corresponds to a subframe, and subframe includes two time slots, fixed on a time slot to be reserved with 1 symbol (DMRS is not required to base station instruction UE for sending DMRS, but what system itself was set, UE sends the DMRS when dispatching PUSCH by base station automatically).The present embodiments relate to short TTI, short TTI's is shorter in length than 1ms, i.e., a shorter than existing subframe, and typical short TTI can be 0.5ms TTI, can also be the length cell including two or more symbols.In communication system 100 shown in Fig. 1, at a time and base station 102 communicate to connect user equipment 104~114 in, can a part be based on short TTI transmission UE, another part be based on long TTI transmit UE；It can also be all based on the UE of short TTI transmission, the embodiment of the present invention is not construed as limiting this.

The transmission flow of the existing detection reference signal (Sounding Reference Signal, SRS) in communication system is briefly described below.

SRS is for detecting the quality of up channel.The SRS sent by UE, base station can detect the uplink signal-channel quality of UE, thereby determine that the frequency location of the resource block of UE uplink scheduling distribution.SRS is sent in the last symbol of a subframe, and specific transmission process is as follows.

It can be used for sub-frame configuration period and sub-frame offset that uplink sends SRS in base station configuration cell.Cell configuration is as shown in table 1 below, wherein SRS-SubframeConfig is the serial number of sub-frame configuration, and Binary is the binary representation of serial number, T_SFCFor sub-frame configuration period (subframe configuration period),For sub-frame offset (subframe transmission offset).In practical application, the configuration of table 1, in UE, base station distributes the serial number (can notify the UE in a binary fashion) of a sub-frame configuration for a certain UE of its service, such as is assigned with the sub-frame configuration of serial number 0.Then the UE determines sub-frame configuration corresponding sub-frame configuration period 1 and sub-frame offset { 0 } according to table 1 and serial number 0, into And the subframe of SRS is sent when knowing its uplink.Wherein, the sub-frame configuration period 1 indicates using every 1 subframe as the period, and sub-frame offset { 0 } expression is started with 0 work song frame.

Table 1

SRS-SubframeConfig	Binary	T<sub>SFC</sub>	Δ<sub>SFC</sub>
SRS-SubframeConfig	Binary	T<sub>SFC</sub>	Δ<sub>SFC</sub>	0	0000	1	{0}
1	0001	2	{0}	0	0000	1	{0}
1	0001	2	{0}	2	0010	2	{1}
3	0011	5	{0}	2	0010	2	{1}
3	0011	5	{0}	4	0100	5	{1}
5	0101	5	{2}	4	0100	5	{1}
5	0101	5	{2}	6	0110	5	{3}
7	0111	5	{0,1}	6	0110	5	{3}
7	0111	5	{0,1}	8	1000	5	{2,3}
9	1001	10	{0}	8	1000	5	{2,3}
9	1001	10	{0}	10	1010	10	{1}
11	1011	10	{2}	10	1010	10	{1}
11	1011	10	{2}	12	1100	10	{3}
13	1101	10	{0,1,2,3,4,6,8}	12	1100	10	{3}
13	1101	10	{0,1,2,3,4,6,8}	14	1110	10	{0,1,2,3,4,5,6,8}
15	1111	reserved	reserved	14	1110	10	{0,1,2,3,4,5,6,8}

It should be understood that SRS transmission can be had by allowing for existing in the time domain a part of resource, and referred to as SRS sends subframe after base station configuration can send the subframe of SRS；Another part resource in time domain is that no SRS is sent, and referred to as non-SRS sends subframe.And subframe and TTI have certain corresponding relationship, therefore the SRS for having base station to configure in the corresponding time-domain resource of some TTI is sent, the SRS for not having base station to configure in the corresponding time-domain resource of other TTI is sent.

Base station configures the SRS bandwidth of cell and the SRS bandwidth of UE.For example, table 2 is when upstream bandwidth isWhen, the bandwidth configuration table of SRS.Wherein, C_SRSFor the SRS band width configuration (SRS bandwidth configuration) of cell, B_SRSFor the SRS band width configuration (SRS-Bandwidth) of UE, m_SRSFor the SRS transmission bandwidth of UE, N is frequency hopping relevant parameter, for determining frequency hopping bandwidth.

Table 2

Table 2 is also disposed in UE, and the SRS band width configuration an of cell and the SRS band width configuration of UE are being distributed for a certain UE of its service in base station.Such as base station is the SRS band width configuration for the cell that UE is assigned with serial number 0 and the SRS band width configuration B of UE_SRS=0.Then the UE is according to the SRS band width configuration and B of the corresponding cell of serial number 0_SRS=0 corresponding m_SRS,0It is 96, N₀It is 1, then the bandwidth that SRS is sent when can know its uplink is 96 RB.

Base station is the relevant parameter of the SRS of UE configuration, mainly may include SRS bandwidth, frequency domain initial position, comb teeth, cyclic shift, antenna port etc., relevant parameter is described as follows.

Subframe is sent for the SRS of cell configuration, the different UE in cell send SRS in the last symbol of the subframe.The interval SRS occupies subcarrier, therefore the subcarrier that SRS is occupied is in pectination on frequency domain.In order to guarantee that different UE transmission SRS are mutually orthogonal, in some identical SRS bandwidth, different UE can be configured such that with different cyclic shift or comb teeth.Wherein 8 different cyclic shifts, 2 kinds of different comb teeth can be used in the sequence of SRS, so sharing 16 resources that can be used to send SRS in identical SRS bandwidth, that is to say, that in this SRS transmission bandwidth, can at most send 16 SRS simultaneously.

Frequency domain bandwidth is configured using tree.Each SRS band width configuration (SRS bandwidth configuration) corresponds to a tree structure, the maximum SRS bandwidth of the corresponding SRS band width configuration of SRS bandwidth (SRS-Bandwidth) of top (or being first layer), or be SRS bandwidth range.The maximum bandwidth of SRS is 96 RB, and minimum bandwidth is 4 RB.

UE is indicated according to the signaling of base station, after the bandwidth of the SRS of itself is calculated, sends the frequency domain initial position of SRS further according to the top signaling that base station is sent to determine itself.Frequency domain initial position 5bit It indicates, range 0 ... 23 can indicate in 96 RB of maximum probe bandwidth using 4RB as 24 possible positions of minimum unit.

Relevant parameter of the base station in addition to that can configure periodicity SRS for UE by Tables 1 and 2, can also configure the relevant parameter of aperiodicity SRS for UE.Period SRS and aperiodic SRS respectively correspond trigger type 0 and trigger type 1.SRS configuration index is used to indicate SRS sending cycle and sub-frame offset, that is, determines the lower subframe for sending SRS of trigger type 0 and the lower subframe that can send SRS of trigger type 1.The subframe that can send SRS lower for trigger type 1, whether send SRS and signal (Physical Downlink Control Channel is controlled by physical down, PDCCH the Downlink Control Information (Downlink Control Information, DCI) in) is indicated.

UE sending cycle SRS, that is when the SRS of trigger type 0, index is configured according to the SRS of base station configuration, in the subframe for meeting SRS configuration index indicated sub-frame configuration period and sub-frame offset, using the transmission bandwidth of configuration, frequency hopping bandwidth, frequency domain initial position, comb teeth, cyclic shift and antenna port etc., SRS is sent.When UE sends aperiodic SRS, the i.e. SRS of trigger type 1, PDCCH is sent by base station and triggers UE transmission SRS.When UE subframe n receive triggering SRS PDCCH, UE can according to SRS configure index determine subframe n+k, wherein k >=4, use the SRS transmission bandwidth of configuration, frequency hopping bandwidth, frequency domain initial position, comb teeth, cyclic shift and antenna port etc., send SRS.

The communication means of the embodiment of the present invention is described in detail below, first network equipment can correspond to user equipment in embodiments of the present invention, and second network equipment can correspond to base station.It should be understood that first network equipment corresponds to user equipment, second network equipment corresponds to base station and is only for example rather than limits.First network equipment and second network equipment can be respectively other network equipments with user equipment or base station similar functions.

Fig. 2 shows the schematic flow charts of the communication means 200 of one embodiment of the invention.This method 200 may include:

S230, first network equipment send demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

Optionally, which is a Transmission Time Interval TTI.Optionally, TTI is short TTI.Optionally, the value of TTI is 0.5ms.

Optionally, which is a time slot.

Optionally, which is a subframe.

Before S230, this method can also include:

S210, the first network equipment determines the first SRS parameter, wherein, first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, for first SRS parameter to be a set of in more set SRS parameters, the frequency domain which is covered includes that second network equipment can carry out the frequency domain that the scheduled PUSCH of short TTI transmission is covered for the first network equipment；

In S230, SRS is sent according to the first SRS parameter identified in S210.

In this way, since the frequency domain of the DMRS sent in S230 is some or all of the frequency domain of PUSCH dispatched in the chronomere, so that the frequency domain resource of SRS and the frequency domain resource of the DMRS have overlapping.

In S230, scheduling has PUSCH in the corresponding time-domain resource of the chronomere, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

Before S230, can also include:

S220, the first network equipment determine that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS.

Communication means provided in an embodiment of the present invention, first network equipment had not only sent DMRS in chronomere but also had sent SRS, and the frequency domain resource of DMRS and the frequency domain resource of SRS are overlapped, allow second network equipment according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and the offset estimation in the chronomere may be implemented.When scene applied to short TTI, the offset estimation in the case of short TTI may be implemented.

It is described so that the chronomere is short TTI as an example below.

Specifically, be UE with first network equipment, for second network equipment is base station, the method 200 of the embodiment of the present invention is described.Short TTI transmission is carried out, i.e., the first SRS parameter is determined by the UE that short TTI transmits data, wherein the first SRS parameter is specific a set of in more set SRS parameters.The frequency domain that more set SRS parameters are covered includes that second network equipment can carry out the frequency domain that the scheduled PUSCH of short TTI transmission is covered for the first network equipment.First SRS parameter, when carrying out short TTI transmission, determines for UE and sends parameter used in SRS on short TTI.The corresponding frequency domain resource of first SRS parameter, with base station be UE carry out the scheduled PUSCH of short TTI transmission frequency domain have it is overlapping.In this way, UE can not only send SRS on suitable short TTI using the first SRS parameter but also send DMRS, in order to which base station carries out channel estimation to short TTI according to SRS and DMRS, offset estimation is especially carried out.

Wherein, the first SRS parameter can be system (such as base station) specially from the more set frequency domain resources (more set SRS parameter) for sending SRS on short TTI reserved in the frequency domain resource being used for transmission It is a set of.System in the more set SRS parameter of configuration, can be according to base station UE carry out PUSCH scheduled in short TTI transmission can covered frequency domain configure.System configuration covers SRS parameter more so that mostly the frequency domain that is covered of set SRS parameter include base station be UE carry out PUSCH scheduled in short TTI transmission can covered frequency domain.No matter base station, which is UE, in this way carries out short which type of PUSCH of TTI transmitting and scheduling, and base station or UE can select a set of SRS parameter from more set SRS parameters according to the frequency domain of PUSCH, so that the frequency domain of the frequency domain and PUSCH that send SRS has overlapping.

It should be understood that in the embodiment of the present invention, it is preferable that when the frequency domain of multiple PUSCHs of the system in setting for carrying out short TTI transmission and more set SRS parameters, wherein multiple PUSCH should be made corresponding with more set SRS parameters.For example, two PUSCH for carrying out short TTI transmission are arranged in system, each PUSCH occupies 5 RB, and two PUSCH occupy continuous 10 RB altogether；Meanwhile two sets of SRS parameters are arranged in system (or base station), wherein the frequency domain initial position of first set SRS parameter can be one in preceding 5 RB in 10 RB, and the frequency domain initial position of second set of SRS parameter can be one in rear 5 RB in 10 RB.In this way, UE can be used first set SRS parameter and send SRS when base station is that UE carries out first PUSCH of scheduling when short TTI transmission；When base station is that UE carries out second PUSCH of scheduling when short TTI transmission, UE can be used second set of SRS parameter and send SRS, so that the frequency domain that the frequency domain and UE of the PUSCH of UE send SRS has overlapping, base station can not only receive SRS on a short TTI but also receive DMRS, to carry out channel estimation, offset estimation is especially carried out.

It should also be understood that UE determines the instruction that the first SRS parameter can be sent according to base station to UE in the embodiment of the present invention, it can also voluntarily be determined by UE according to related content, be developed in details in the specific embodiment of both schemes below.

S210 is described in detail above, the frequency domain resource for sending SRS can be determined in S210, S220 is described in detail below.

Specifically, in S220, which meets following two condition, and first condition is that scheduling has PUSCH in the corresponding time-domain resource of the chronomere, and second condition is that the SRS for having base station to configure in the corresponding time-domain resource of the chronomere is sent.Wherein, the time-domain resource that the SRS for having base station to configure is sent, it can be understood as the SRS being outlined above sends the latter time slot of subframe.Meet first condition and make have DMRS transmission in the chronomere, meets the SRS that second condition makes the chronomere fall in base station configuration and send in subframe, data will not be sent when sending SRS in the chronomere, so as to avoid the interference to data.

Optional, the embodiment of the present invention can be applied to the scene of short TTI.Then UE can determined at which Before sending DMRS and frequency domain resource in a chronomere and having overlapping SRS with the frequency domain resource of the DMRS, can first determine whether corresponding chronomere is a time slot in the scene of short TTI, such as in short TTI scene.

It is exemplary, the time slot that existing SRS is sent is the latter time slot of a subframe, since each time slot is 0.5ms, a corresponding 0.5msTTI, so in the time slot, if there is PUSCH is dispatched, and there is DMRS transmission, then the time slot sends frequency domain resource used in SRS can be overlapped with the frequency domain resource of PUSCH.Specifically, send parameter used in SRS can be a set of in pre-configured more set SRS parameters, cover the frequency domain that SRS parameters are covered include base station be UE carry out PUSCH scheduled in short TTI transmission can covered frequency domain.In this way, the network equipment can carry out channel estimation to the TTI according to the DMRS and SRS on the corresponding time slot of the TTI, to improve the quality of channel estimation, especially can according on the corresponding time slot of the TTI DMRS and SRS offset estimation is made to TTI.

It should be understood that, channel estimation and offset estimation in the embodiment of the present invention can use conventional means in the prior art, for example, by calculating the phase difference between SRS the and DMRS signal for occupying same sub-carrier, phase difference is converted into frequency offset, to carry out the offset estimation of system.Its detailed process is no longer repeated in the embodiment of the present invention.

Optionally, as one embodiment, S210 first network equipment determines the first SRS parameter, may include:

The first network equipment receives the first instruction information of second network equipment transmission, which is used to indicate the first SRS parameter；

Specifically, the first SRS parameter can be determined by base station, and notified by the first instruction information to UE by base station.Base station can be to carry out the UE of the short TTI transmission specific frequency domain resource of reserved part from the frequency domain resource being used for transmission, and to configure for SRS, the UE for carrying out short TTI transmission sends SRS and uses.The reserved specific frequency domain resource can be divided into more set SRS parameters.The frequency domains for covering the PUSCH that the frequency domain that the corresponding frequency domain resource of SRS parameter is covered includes UE scheduling of the base station by the short TTI transmission of carry out and covering more.In this way, can find has overlapping a set of SRS parameter with the frequency domain position of PUSCH when base station is the PUSCH of UE scheduling for specifically carrying out short TTI transmission.Preferably, the frequency domain that mostly set SRS parameter is covered can cover the whole bandwidth of system.

Base station be the more set SRS parameters for the UE configuration for carrying out short TTI transmission and base station be carry out the frequency domain resource that the UE of non-short TTI transmission is configured can be it is nonoverlapping.Therefore, short TTI can be allowed to carry out The frequency domain for the UE transmission SRS that the UE of transmission sends the frequency domain of SRS and the non-short TTI of progress is transmitted is entirely different and will not generate interference between each other.In addition, base station can distribute different SRS parameters to carry out the different UE of short TTI transmission, so that the SRS for sending different UE is also mutually non-interfering.In addition, base station can also configure different time-domain resources for different UE, in addition to distributing different SRS parameters for each UE to support more UE not interfere with each other in transmission SRS phase.

Optionally, in embodiments of the present invention, which receives the first instruction information of second network equipment transmission, comprising:

The first network equipment receives the first instruction information that second network equipment is sent by physical downlink control channel PDCCH, further includes the information that second network equipment carries out the scheduled PUSCH of short TTI transmission for the first network equipment in the PDCCH.

Specifically, base station after the PUSCH for being determined as carrying out the UE scheduling of short TTI transmission, can determine the first adaptable SRS parameter according to the frequency domain position of the PUSCH dispatched for the UE.Send the first instruction information of the first SRS parameter of instruction and the information of the PUSCH for UE scheduling simultaneously by the same PDCCH.UE determines the running time-frequency resource for sending PUSCH according to the PDCCH, and on the running time-frequency resource for sending PUSCH, what can be fixed sends DMRS on some symbols.UE sends SRS according to the first SRS parameter on PDCCH, so that the frequency domain of SRS and the frequency domain of PUSCH at least partially overlap.

It should be understood that optionally, in embodiments of the present invention, system can be the every set SRS parameters establishment indexes covered in SRS parameters more, it will cover SRS parameter more by way of can notifying or be pre-configured base station and its corresponding relationship of index be stored in advance in UE.In the corresponding PDCCH of base station scheduling PUSCH, the SRS parameter selected for the UE can be indicated to UE by the first instruction information.Wherein, the first instruction information can be the index of the SRS parameter, and UE determines the first SRS parameter according to the index received and the corresponding relationship of more set SRS parameters and its index.Alternatively, in UE can not storing multiple sets SRS parameter related content, base station directly pass through the first instruction information to UE indicate the first SRS parameter particular content.For example, the first SRS parameter may include transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position etc., the embodiment of the present invention is not construed as limiting this.

Optionally, as one embodiment, S220 first network equipment determines that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS, comprising:

The period of SRS is sent when the first network equipment is according to the progress short TTI transmission that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine the chronomere, and the chronomere is corresponding Scheduling has PUSCH in time-domain resource, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

Specifically, chronomere can be short TTI.The second indication information that the instruction that UE can be sent according to base station sends SRS determines the TTI for sending SRS.Wherein, which can implicitly indicate to send the TTI of SRS, such as UE is counted in the TTI for receiving the second indication information, send SRS in the TTI for being separated by certain amount.The second indication information can also explicitly indicate to send the TTI of SRS, such as be used to indicate the field or mark of TTI including one in second indication information, in order to which UE sends SRS on the TTI.It should be understood that, the first instruction information of the second indication information and above method 100 can be merged into an instruction information, such as, the field that first SRS parameter and instruction send SRS can be merged in an instruction information, or only send the first SRS parameter, the TTI of transmission SRS is implicitly indicated by the first SRS parameter, the present invention is not construed as limiting concrete implementation mode.

In addition, the progress short TTI that UE can also be UE configuration according to base station sends the period of SRS when transmitting to determine the TTI for sending SRS.The period for send when short TTI transmission SRS can be understood as on the PUSCH for carrying out short TTI transmission, and a SRS is sent per certain number of TTI, which is the period for sending SRS.For example, determining a TTI at interval of 2 TTI, i.e., using 3 TTI as the period, determine the TTI for sending SRS.The period for sending SRS is also understood that send a SRS when meeting or exceeding preset time interval threshold value on the PUSCH for carrying out short TTI transmission.For example, preset time interval threshold value is 10ms, the timing since sending after a upper SRS, when reaching 10ms, and when being dispatched at this time there is also PUSCH, by this time can corresponding TTI be determined as the TTI of transmission SRS；When PUSCH scheduling is not present at this time, then after waiting next PUSCH scheduling to start, first TTI that will exceed 10ms is determined as sending the TTI of SRS.Determine TTI mode can also there are many, the embodiment of the present invention no longer repeats one by one.

Optionally, as one embodiment, which includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

For example, when system bandwidth isWhen, the SRS parameter for carrying out the UE determination of short TTI transmission includes: the transmission bandwidth of SRS (can be configuration shown in similar hereinbefore table 2), such as specially transmission bandwidth B_SRS=0；Frequency domain initial position is 0；Comb teeth TransmissionComb=0；Cyclic shift is cs0；Etc., so that it is determined that the UE for going out the short TTI transmission of the carry out sends the specific frequency domain position of SRS.The antenna port for sending SRS and using is determined by the antenna port in SRS parameter.When allowing frequency hopping frequency hopping can also be carried out for example, by frequency hopping bandwidth is hbw0.More than it should be understood that The description of SRS parameter is only for example rather than the limitation to the embodiment of the present invention.

Therefore, communication means provided in an embodiment of the present invention, it include more set SRS parameters that first network equipment carries out the frequency domain that the scheduled PUSCH of short TTI transmission is covered by the way that frequency domain is arranged, enable first network equipment not only to send DMRS on short TTI but also sends SRS, second network equipment is according to the DMRS and SRS on the short TTI, channel estimation can be carried out to short TTI, and the offset estimation in the case of short TTI may be implemented.

Above embodiments are the SRS that network equipment instruction carries out the UE transmission of short TTI transmission and the frequency domain of the PUSCH of UE is adapted.Further, it is also possible to which the transmission of the SRS for the UE for carrying out short TTI transmission is kept not change compared with the existing technology, the frequency domain of the PUSCH dispatched for the UE is adjusted by base station, so that the frequency domain of PUSCH is adapted to SRS.That is, the scheduling to base station limits, allows to carry out frequency domain of the frequency domain of the PUSCH of the UE of short TTI transmission at least with the UE SRS sent in this TTI and overlap.

Fig. 3 shows the schematic flow chart of the communication means 300 of another embodiment of the present invention.This method 300 may include:

S310, first network equipment is the period of the transmission demodulated reference signal DMRS of the first network device configuration according to second network equipment, or first network equipment indicates information according to the third that second network equipment is sent, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the chronomere.

Optionally, which can be the first TTI.Wherein, the first TTI can be short TTI.Optionally, which can be 0.5ms, identical as the length of a time slot.

Optionally, which may be the first time slot.

Optionally, which may be the first subframe.

Optionally, the embodiment of the present invention can be applied to the scene of short TTI communication.

Communication means provided in an embodiment of the present invention, instruction information that first network equipment is sent according to second network equipment or according to the period, additional DMRS is sent in specific chronomere, in order to which base station is according to DMRS and the additional DMRS fixed in the chronomere, channel estimation is carried out to the chronomere, realizes the offset estimation of the chronomere.When being applied to the scene of short TTI, the offset estimation in the case of short TTI may be implemented.

It is described so that chronomere is short TTI as an example below.

Specifically, for the UE for carrying out PUSCH transmission using short TTI (for example, 0.5ms TTI), The DMRS that only one in a TTI is fixed in the prior art, the effect of single DMRS channel estimation is poor, and cannot achieve offset estimation.And in the embodiment of the present invention, UE is that the TTI period that the UE is configured or the third that base station is sent indicate information according to base station, determines the short TTI for sending two DMRS (i.e. for sending additional DMRS).Therefore, which sends two DMRS on specific first TTI, in order to which base station is according to two DMRS, carries out channel estimation to the first TTI, especially progress offset estimation.Wherein, which can send additional DMRS, i.e. the first DMRS on the first symbol of the first TTI；Fixed DMRS, i.e. the 2nd DMRS are sent on the second symbol of the first TTI.

In general, fixed DMRS, i.e. the 2nd DMRS are sent on the 4th symbol (intermediate symbol) of the corresponding time slot of 0.5ms TTI in the prior art.The additional DMRS of the embodiment of the present invention, i.e. the first DMRS can be sent on any one other symbol in addition to the 4th symbol.Preferably, additional DMRS, i.e. the first DMRS can be sent in the last symbol of the corresponding time slot of the first TTI.

Base station is that UE configuration carries out the specific implementation that the TTI period of additional DMRS is sent when short TTI transmission, can be logically similar for the specific implementation in the period of UE device configuration transmission SRS with base station in methods as described herein above 200, details are not described herein again.

Existing some conventional methods are referred to according to the specific implementation that two reference signals carry out offset estimation in the embodiment of the present invention.For example, phase difference is converted into frequency offset, to carry out the offset estimation of system by calculating the phase difference between the DMRS signal that two occupy same sub-carrier.

Optionally, in embodiments of the present invention, the third instruction information can be the first network equipment by physical downlink control channel PDCCH it is received from second network equipment, in the PDCCH can also include second network equipment be the first network equipment scheduled in PUSCH information.

Specifically, base station can send the information of third instruction information and the PUSCH for UE scheduling after the PUSCH for being determined as carrying out the UE scheduling of short TTI transmission by the same PDCCH.Wherein, third instruction information can be carried in Downlink Control Information (Downlink Control Information, DCI), for example, carrying third instruction information by one or several bits in DCI.In addition, base station, which can also send third to UE by high-level signaling, indicates information.Third instruction information can indicate that UE sends additional DMRS on some specific TTI, it is also possible to the transmission frequency for notifying UE to send additional DMRS, such as the uplink of every scheduling two TTI of UE, a TTI sends two DMRS to UE needs wherein, and the embodiment of the present invention is not construed as limiting the concrete form of third instruction information.

In a specific example, UE can send two DMRS according to base station for the period of its configuration, that is, send additional DMRS.Such as, it is specified that the TTI of the uplink scheduling of UE needs to send primary additional DMRS when meeting is more than that continuous N number of TTI does not dispatch the uplink of UE.

It should be understood that the embodiment of the present invention can not limit the SRS transmission for whether having base station to configure in the corresponding time-domain resource of the first TTI.

Preferably, the detection reference signal SRS of second network equipments configuration is not had to send in the corresponding time-domain resource of the first TTI.In other words, with the division mode of existing subframe and time slot.The corresponding time slot of first TTI is the previous time slot of subframe or the latter time slot of non-detection reference signal SRS transmission subframe.

As shown in figure 4, method 400 includes: in a specific example method 400 of method 300

S410, first network equipment is the period of the additional demodulated reference signal DMRS of transmission of the first network device configuration according to second network equipment, or first network equipment indicates information according to the third that second network equipment is sent, additional DMRS is sent in first time unit, wherein, there is no the detection reference signal SRS of second network equipments configuration to send in the corresponding time-domain resource of first time unit, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, there are another DMRS in the first time unit；

Method 400 can also include:

S440, the first network equipment send DMRS and SRS in second chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

Wherein, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the second chronomere, and sending on the PUSCH has the DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the second chronomere.

Optionally, before sending DMRS and SRS in the second chronomere in S440 first network equipment, the method 400 can also include:

S420, the first network equipment determines the first SRS parameter, wherein, first SRS parameter is for indicating that the first network equipment sends the frequency domain resource of SRS in the second chronomere, for first SRS parameter to be a set of in more set SRS parameters, the frequency domain which is covered includes the frequency domain that second network equipment can be covered for PUSCH scheduled in the first network equipment.

S430, it is overlapping which determines that transmission DMRS and frequency domain resource have with the DMRS SRS second chronomere.

Optionally, the second chronomere is a TTI.Optionally, TTI is short TTI.Optionally, the value of TTI is 0.5ms.

Optionally, the second chronomere is a time slot.

Optionally, the second chronomere is a subframe.

Specifically, in the prior art, for base station is the subframe of UE scheduling, a DMRS can be sent in the previous time slot of subframe (SRS including the configuration of non-cell sends subframe and the SRS of cell configuration sends subframe), in order to which base station carries out data demodulation according to DMRS.It is sent in subframe in the SRS of non-cell configuration, a DMRS is also only sent in the latter time slot.The method 400 of the embodiment of the present invention retransmits an additional DMRS in above-mentioned time slot (first time unit), in order to which base station carries out offset estimation according to two DMRS in a chronomere.

For the second chronomere that the SRS for having base station to configure in time-domain resource is sent, i.e. for the SRS of cell configuration sends the latter time slot of subframe, in the prior art, the UE in cell can send SRS in the last symbol of the time slot.However, the frequency domain where the PUSCH of scheduling may be not Chong Die with the frequency domain that SRS is sent for any one UE, i.e., there is no SRS transmission on the time slot of the frequency domain where PUSCH.The method 400 of the embodiment of the present invention sends SRS in the second chronomere when scheduling has PUSCH in the corresponding time-domain resource of the second chronomere.In this way, UE sends SRS in the last symbol of the second chronomere, UE can also send fixed DMRS on the 4th symbol of the second chronomere.Base station can carry out channel estimation to second chronomere according to the DMRS and SRS on the symbol of second chronomere as a result, especially progress offset estimation.

Optionally, in embodiments of the present invention, S420 first network equipment determines the first SRS parameter, comprising:

Optionally, in embodiments of the present invention, more set SRS parameters are configured in the first network equipment,

S420 first network equipment determines the first SRS parameter, comprising:

Optionally, in embodiments of the present invention, S430 first network equipment determines that sending DMRS and frequency domain resource has second chronomere of overlapping SRS with the DMRS, comprising:

The first network equipment is the period of the transmission SRS of the first network device configuration according to second network equipment, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine second chronomere, and scheduling has PUSCH in the corresponding time-domain resource of the second chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the second chronomere.

Optionally, in embodiments of the present invention, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

It should be understood that the specific implementation of the method 400 of the embodiment of the present invention is corresponding with the specific implementation of method 200 and method 300, details are not described herein.

It combines Fig. 2 to Fig. 4 that the communication means of the embodiment of the present invention is described in detail from the angle of first network equipment UE above, the communication means of the embodiment of the present invention is described from the angle of the second network equipment base station below.

Fig. 5 shows the schematic flow chart of the communication means 500 of another embodiment of the invention.Method 500 is executed by second network equipment, and second network equipment can be base station, corresponding with the base station in method 200.Method 500 includes:

S520, second network equipment receive demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

Optionally, which is a time slot.

Optionally, which is a subframe.

Optionally, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

Before S520, this method 500 can also include:

S510, second network equipment sends the instruction information for being used to indicate the first SRS parameter to first network equipment, wherein, first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, first SRS parameter is one in more set SRS parameters, and the frequency domain which is covered includes the frequency domain that second network equipment can be covered for PUSCH scheduled in the first network equipment.

After S520, this method 500 can also include:

S530, second network equipment carry out channel estimation according to the DMRS and the SRS, to the chronomere.

Communication means provided in an embodiment of the present invention, it include more set SRS parameters that first network equipment carries out the frequency domain that the scheduled PUSCH of short TTI transmission is covered by the way that frequency domain is arranged, enable first network equipment not only to send DMRS in chronomere but also sends SRS, second network equipment is according to the DMRS and SRS in the chronomere, channel estimation can be carried out to chronomere, and the offset estimation in chronomere may be implemented.

It should be understood that second network equipment of the embodiment of the present invention, it can be corresponding with second network equipment in method 200, execution and corresponding operation and/or function in method 200, to realize the corresponding process of the method for Fig. 2 and Fig. 5, for sake of simplicity, details are not described herein.

Fig. 6 shows the schematic flow chart of the communication means 600 of another embodiment of the invention.Method 600 is executed by second network equipment, and second network equipment can be base station, corresponding with the base station in method 300.Method 600 includes:

S610, second network equipment is the period that first network device configuration sends additional demodulated reference signal DMRS, or second network equipment sends third to the first network equipment and indicates information, in order to which the first network equipment indicates information according to the period or the third, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit；

S620, second network equipment receives the first additional DMRS that the first network equipment is sent in the first time unit, second network equipment carries out channel estimation according to the 2nd DMRS present on the first DMRS and the first TTI, to the first time unit.

Communication means provided in an embodiment of the present invention, instruction information that first network equipment is sent according to second network equipment or according to the period, additional DMRS is sent in specific chronomere, second network equipment is according to DMRS and the additional DMRS fixed in the chronomere, channel estimation is carried out to the chronomere, realizes the offset estimation of the chronomere.When being applied to the scene of short TTI, Ke Yishi Offset estimation in the case of existing short TTI.

It should be understood that second network equipment of the embodiment of the present invention, it can be corresponding with second network equipment in method 300 or method 400, it executes and corresponding operation and/or function in method 300 or method 400, to realize the corresponding process of the method for Fig. 3,4 and 6, for sake of simplicity, details are not described herein.

First network equipment according to an embodiment of the present invention is described in detail below in conjunction with Fig. 7.As shown in fig. 7, the first network equipment 700 includes:

Sending module 730, for sending demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

Scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

First network equipment 700 can also include:

First determining module 710, for before the sending module sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, determine the first SRS parameter, wherein, first SRS parameter is for indicating that the first network equipment sends the frequency domain resource of SRS in the chronomere, for first SRS parameter to be a set of in more set SRS parameters, the frequency domain which is covered includes the frequency domain that second network equipment can be covered for PUSCH scheduled in the first network equipment.

Optionally, first network equipment 700 can also include:

Second determining module 720 has the chronomere of overlapping SRS for determining transmission DMRS and frequency domain resource with the DMRS.

First network equipment provided in an embodiment of the present invention, SRS is sent by not only sending DMRS in chronomere, and the frequency domain resource overlapping of the DMRS and SRS, allow second network equipment according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and the offset estimation in the chronomere may be implemented.

In embodiments of the present invention, optionally, the first network equipment 700 further include:

Receiving module, for receiving the first instruction information of second network equipment transmission, which is used to indicate the first SRS parameter；

First determining module 710 is specifically used for:

In embodiments of the present invention, optionally, which is specifically used for:

Receive first instruction that second network equipment is sent by physical downlink control channel PDCCH Information further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

In embodiments of the present invention, optionally, more set SRS parameters are configured in the first network equipment 700,

First determining module 710 is specifically used for:

According to the period for the transmission SRS that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine the chronomere, and scheduling has PUSCH in the corresponding time-domain resource of the chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.

In embodiments of the present invention, optionally, which includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

It should be understood that, first network equipment 700 according to an embodiment of the present invention can correspond to execute the communication means 200 in the embodiment of the present invention, and above and other operation and/or function of the modules in first network equipment 700 is respectively in order to realize the corresponding process of each method in Fig. 2 and Fig. 5, for sake of simplicity, details are not described herein.

First network equipment provided in an embodiment of the present invention, first network equipment had not only sent DMRS in chronomere but also had sent SRS, and the frequency domain resource of DMRS and the frequency domain resource of SRS are overlapped, allow second network equipment according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and the offset estimation in the chronomere may be implemented.

First network equipment 800 according to another embodiment of the present invention is described in detail below in conjunction with Fig. 8.As shown in figure 8, the first network equipment 800 includes:

Sending module 810, for the period according to the additional demodulated reference signal DMRS of transmission that second network equipment is the first network device configuration, or the first network equipment indicates information according to the third that second network equipment is sent, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit.

First network equipment provided in an embodiment of the present invention, instruction information that first network equipment is sent according to second network equipment or according to the period send additional DMRS in specific chronomere, in order to Base station carries out channel estimation according to DMRS and the additional DMRS fixed in the chronomere, to the chronomere, realizes the offset estimation of the chronomere.When being applied to the scene of short TTI, the offset estimation in the case of short TTI may be implemented.

In embodiments of the present invention, optionally, third instruction information is that the first network equipment is received from second network equipment by physical downlink control channel PDCCH, further includes the information that second network equipment is PUSCH scheduled in the first network equipment in the PDCCH.

In embodiments of the present invention, optionally, the detection reference signal SRS of second network equipments configuration is not had to send in the corresponding time-domain resource of first time unit.

In embodiments of the present invention, optionally, as shown in figure 8, the sending module 810 is also used to:

In embodiments of the present invention, optionally, as shown in figure 8, the first network equipment 800 further include:

First determining module 820, for before the first network equipment sends DMRS and SRS in the second chronomere, determine the first SRS parameter, wherein, first SRS parameter is for indicating that the first network equipment sends used parameter in the second chronomere, for first SRS parameter to be a set of in more set SRS parameters, the frequency domain which is covered includes the frequency domain that second network equipment can be covered for PUSCH scheduled in the first network equipment.

Second determining module 830, for before the first network equipment sends DMRS and SRS in the second chronomere, determining that sending DMRS and frequency domain resource has second chronomere of overlapping SRS with the DMRS.

In embodiments of the present invention, optionally, the first network equipment 800 further include:

First determining module 820 is specifically used for:

According to the second indication information, the first SRS parameter is determined.

In embodiments of the present invention, optionally, more set SRS are configured in the first network equipment 800 Parameter,

First determining module 820 is specifically used for:

According to the period for the transmission SRS that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine second chronomere, and scheduling has PUSCH in the corresponding time-domain resource of the second chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the second chronomere.

In embodiments of the present invention, optionally, the first SRS parameter includes transmission bandwidth, antenna port, cyclic shift, comb teeth and frequency domain initial position.

It should be understood that, first network equipment 800 according to an embodiment of the present invention can correspond to execute the communication means 300 and 400 in the embodiment of the present invention, and above and other operation and/or function of the modules in first network equipment 800 is respectively in order to realize Fig. 3, the corresponding process of each method in Fig. 4 and Fig. 6, for sake of simplicity, details are not described herein.

First network equipment provided in an embodiment of the present invention, instruction information that UE is sent according to base station or according to the period, additional DMRS is sent in specific chronomere, in order to which base station is according to DMRS and the additional DMRS fixed in the chronomere, channel estimation is carried out to the chronomere, realizes the offset estimation of the chronomere.When being applied to the scene of short TTI, the offset estimation in the case of short TTI may be implemented.

Second network equipment 900 according to an embodiment of the present invention is described in detail below in conjunction with Fig. 9.As shown in figure 9, second network equipment 900 includes:

Receiving module 920, for receiving demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.

Second network equipment provided in an embodiment of the present invention can carry out channel estimation to the chronomere, and the offset estimation in the chronomere may be implemented according to the DMRS and SRS in chronomere.

Optionally, in embodiments of the present invention, second network equipment 900 further include:

Sending module 910, for before second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the the first instruction information for being used to indicate the first SRS parameter is sent to first network equipment, wherein, for first SRS parameter for indicating that the first network equipment sends used parameter in the chronomere, the first SRS parameter is in more set SRS parameters One, the frequency domain which is covered includes the frequency domain that second network equipment can be covered for PUSCH scheduled in the first network equipment.

Channel estimation module 930, for according to the DMRS and the SRS, carrying out channel estimation to the chronomere after the receiving module 910 receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere.

Second network equipment provided in an embodiment of the present invention, DMRS had not only been sent in chronomere by first network equipment but also has sent SRS, and the frequency domain resource of DMRS and the frequency domain resource of SRS are overlapped, second network equipment can be according to the DMRS and SRS in the chronomere, channel estimation is carried out to the chronomere, and the offset estimation in the chronomere may be implemented.

It should be understood that, second network equipment 900 according to an embodiment of the present invention can correspond to execute the communication means 500 in the embodiment of the present invention, and above and other operation and/or function of the modules in second network equipment 900 is respectively in order to realize the corresponding process of each method in Fig. 2 and Fig. 5, for sake of simplicity, details are not described herein.

Second network equipment 1000 according to another embodiment of the present invention is described in detail below in conjunction with Figure 10.As shown in Figure 10, which includes:

Processing module 1010, for sending the period of additional demodulated reference signal DMRS for first network device configuration, or second network equipment sends third to the first network equipment and indicates information, in order to which the first network equipment indicates information according to the period or the third, additional DMRS is sent in first time unit, wherein, third instruction information is used to indicate the first network equipment and sends additional DMRS in the first time unit, and there are another DMRS in the first time unit；

Receiving module 1020, the additional DMRS sent in the first time unit for receiving the first network equipment；

Channel estimation module 1030, for, according to another DMRS present on the additional DMRS and the first time unit, carrying out channel estimation to the first time unit according to this.

Second network equipment provided in an embodiment of the present invention, instruction information that first network equipment is sent according to second network equipment or according to the period, additional DMRS is sent in specific chronomere, second network equipment is according to DMRS and the additional DMRS fixed in the chronomere, channel estimation is carried out to the chronomere, realizes the offset estimation of the chronomere.When being applied to the scene of short TTI, the offset estimation in the case of short TTI may be implemented.

It should be understood that second network equipment 1000 according to an embodiment of the present invention can correspond to execute the present invention Communication means 600 in embodiment, and above and other operation and/or function of the modules in second network equipment 1000 is respectively in order to realize the corresponding process of each method in Fig. 3 and Fig. 6, for sake of simplicity, details are not described herein.

The method provided according to embodiments of the present invention, as shown in figure 11, the embodiment of the present invention also provides a kind of communication device, which can be the network equipment 1100, the first network equipment in the corresponding above-mentioned communication means 200,300,400,500 of the network equipment 1100 or method 600.First network equipment can be UE, or micro-base station or small base station not limit herein.

The network equipment 1100 includes processor 1110, memory 1120, bus system 1130, receiver 1140 and transmitter 1150.Wherein, processor 1110, memory 1120, receiver 1140 and transmitter 1150 are connected by bus system 1130, the memory 1120 is for storing instruction, the processor 1110 is used to execute the instruction of the memory 1120 storage, signal is received to control and receive device 1140, and control transmitter 1150 and send signal, complete the step in above-mentioned radio switch-in method.Wherein, receiver 1140 and transmitter 1150 can be same or different physical entity.When for identical physical entity, transceiver may be collectively referred to as.

Specific steps can refer to the description of the above various embodiments, and it will not be described here.

As a kind of implementation, the function of receiver 1140 and transmitter 1150 be can be considered through transmission circuit or the realization of the special chip of transmitting-receiving.Processor 1110 by dedicated processes chip, processing circuit, processor or general-purpose chip it is contemplated that realized.

As another implementation, it may be considered that realize radio reception device provided in an embodiment of the present invention using the mode of general purpose computer.It will realize processor 1110, in memory, general processor realizes processor 1110, the function of receiver 1140 and transmitter 1150 by executing the code in memory for the program code storage of 1150 function of receiver 1140 and transmitter.

Concept relevant to technical solution provided in an embodiment of the present invention involved in the network equipment is explained and is described in detail and other steps refer to the description as described in these contents in preceding method or other embodiments, is not repeated herein.

The method provided according to embodiments of the present invention, as shown in figure 13, the embodiment of the present invention also provide one Kind communication device, the device can be the network equipment 1300, second network equipment in the corresponding above-mentioned communication means 200,300,400,500 or 600 of the network equipment 1300.Second network equipment can be base station, or other equipment not limit herein.

The network equipment 1300 includes processor 1310, memory 1320, bus system 1330, receiver 1340 and transmitter 1350.Wherein, processor 1310, memory 1320, receiver 1340 and transmitter 1350 are connected by bus system 1330, the memory 1320 is for storing instruction, the processor 1310 is used to execute the instruction of the memory 1320 storage, signal is received to control and receive device 1340, and control transmitter 1350 and send signal, complete the step in above-mentioned radio switch-in method.Wherein, receiver 1340 and transmitter 1350 can be same or different physical entity.When for identical physical entity, transceiver may be collectively referred to as.

As a kind of implementation, the function of receiver 1340 and transmitter 1350 be can be considered through transmission circuit or the realization of the special chip of transmitting-receiving.Processor 1310 by dedicated processes chip, processing circuit, processor or general-purpose chip it is contemplated that realized.

As another implementation, it may be considered that realize radio reception device provided in an embodiment of the present invention using the mode of general purpose computer.It will realize processor 1310, in memory, general processor realizes processor 1310, the function of receiver 1340 and transmitter 1350 by executing the code in memory for the program code storage of 1350 function of receiver 1340 and transmitter.

It should be understood that, in embodiments of the present invention, processor 1110,1210,1310 or 1410 can be central processing unit (Central Processing Unit, referred to as " CPU "), which can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor etc..

The memory 1120,1220,1320 or 1420 may include read-only memory and random access memory, and provide instruction and data to processor processor 1110,1210,1310 or 1410.The a part of of memory can also include nonvolatile RAM.For example, memory can be with the information of storage device type.

The bus system 1130,1230,1330 or 1430 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system in figure.

During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor processor 1110,1210,1310 or 1410 or the instruction of software form.The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and execute completion, or in processor hardware and software module combination execute completion.Software module can be located at random access memory, flash memory, read-only memory, in the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory, and processor reads the information in memory, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.

It should also be understood that the differentiation that first, second, third and various digital numbers that are referred to herein only carry out for convenience of description, is not intended to limit the invention the range of embodiment.

It should be understood that the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

It should be understood that, in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, and the execution sequence of each process should be determined by its function and internal logic, and the implementation process of the embodiments of the invention shall not be constituted with any limitation.

Those of ordinary skill in the art may be aware that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods may be implemented in other ways.For example, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components may be combined or can be integrated into another System, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.

If the function is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), the various media that can store program code such as random access memory (Random Access Memory, RAM), magnetic or disk.

It is described above; only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and anyone skilled in the art is in the technical scope disclosed by the present invention; it can easily think of the change or the replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

A kind of communication means, which is characterized in that the described method includes:

First network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.
According to the method for claim 1, it is characterized in that, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of the second network equipments configuration to send in the corresponding time-domain resource of the chronomere.
Method according to claim 1 or 2, which is characterized in that before the first network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the method also includes:

The first network equipment determines the first SRS parameter, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, the first SRS parameter be it is a set of in more set SRS parameters, the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.
According to the method in any one of claims 1 to 3, which is characterized in that before the first network equipment sends demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the method also includes:

The first network equipment determines that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS.
According to the method described in claim 3, it is characterized in that, the first network equipment determines the first SRS parameter, comprising:

The first network equipment receives the first instruction information that second network equipment is sent, and the first instruction information is used to indicate the first SRS parameter；

The first network equipment determines the first SRS parameter according to the first instruction information.
According to the method described in claim 3, it is characterized in that, in the first network equipment configured with it is described cover SRS parameters,

The first network equipment determines the first SRS parameter, comprising:

The first network equipment according to second network equipment be the first network equipment scheduled in PUSCH frequency domain, select the first SRS parameter from more set SRS parameters.
According to the method described in claim 4, it is characterized in that, the first network equipment determines that sending the DMRS and frequency domain resource has the chronomere of overlapping SRS with the DMRS, Include:

The period of SRS is sent when the first network equipment is according to the progress short TTI transmission that second network equipment is the first network device configuration, or the first network equipment sends the second indication information of SRS according to the instruction that second network equipment is sent, determine the chronomere, and scheduling has a PUSCH in the corresponding time-domain resource of the chronomere, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.
Method according to any one of claim 1 to 7, which is characterized in that the chronomere is a TTI, a time slot or a subframe.
A kind of communication means, which is characterized in that the described method includes:

Second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, wherein the frequency domain resource of the SRS and the frequency domain resource of the DMRS have overlapping.
According to the method for claim 9, it is characterized in that, scheduling has Physical Uplink Shared Channel PUSCH in the corresponding time-domain resource of the chronomere, and sending on the PUSCH has DMRS, has the SRS of second network equipments configuration to send in the corresponding time-domain resource of the chronomere.
Method according to claim 9 or 10, which is characterized in that before second network equipment receives demodulated reference signal DMRS and detection reference signal SRS in a chronomere, the method also includes:

Second network equipment sends the first instruction information for being used to indicate the first SRS parameter to first network equipment, wherein, the first SRS parameter is for indicating that the first network equipment sends parameter used in SRS in the chronomere, the first SRS parameter is one in more set SRS parameters, and the frequency domain that more set SRS parameters are covered includes that second network equipment can the frequency domain that covers of the PUSCH scheduled in the first network equipment.
The method according to any one of claim 9 to 11, which is characterized in that the method also includes:

Second network equipment is that the first network device configuration carries out the period that SRS is sent when short TTI transmission, or second network equipment sends to the first network equipment and is used to indicate the second indication information for sending SRS, and the chronomere that the DMRS and frequency domain resource have overlapping SRS with the DMRS is sent in order to which the first network equipment is determining.
The method according to any one of claim 9 to 12, which is characterized in that the chronomere is a TTI, a time slot or a subframe.
A kind of network equipment, which is characterized in that including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is for completing such as method described in any item of the claim 1 to 8.
A kind of network equipment, which is characterized in that including processor, memory and transceiver,

The memory is for storing instruction, the processor is used to execute the instruction of the memory storage, sending and receiving for signal is carried out to control transceiver, when processor executes the instruction of the memory storage, the network equipment is used to complete the method as described in any one of claim 9 to 13.