CN106160940B

CN106160940B - A kind of data transmission method and equipment

Info

Publication number: CN106160940B
Application number: CN201510198181.8A
Authority: CN
Inventors: 高雪娟; 邢艳萍
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2015-04-23
Filing date: 2015-04-23
Publication date: 2019-11-19
Anticipated expiration: 2035-04-23
Also published as: WO2016169479A1; CN106160940A

Abstract

The invention discloses a kind of data transmission method and equipment, it include: when repeating to transmit same data over multiple subframes, it at least determines the resource unit for being used for transmission channel state information reference signals reserved in the multiple subframe, is keeping for the resource unit transmitting data other than channel state information reference signals.When receiving, when repeating to transmit same data over multiple subframes, it at least determines the resource unit for being used for transmission channel state information reference signals reserved in the multiple subframe, receives data on keeping for the resource unit other than channel state information reference signals.Using the present invention, it can guarantee the relevant merging that the data mapping resource size in each subframe is identical, when so as to support using the estimation of more sub-frame chan-nels.

Description

A kind of data transmission method and equipment

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of data transmission method and equipment.

Background technique

With the rise of Internet of Things, MTC is supported in LTE (Long Term Evolution, long term evolution) system (Machine Type Communication, machine type communication) is increasingly taken seriously.It sets up the project in 3GPP Release 13 Enhance project for the physical layer of MTC.One MTC device (MTC terminal) may have a variety of M2M (Machine to Machine, machine and machine) part of properties among communication characteristic, such as Hypomobility, transmitted data amount it is small, to communication delay It is insensitive, require the features such as extremely low power dissipation.

The deficiencies in the prior art are: in existing network, the terminal to work under some scenes, for example work in underground Room, market or the terminal for building corner, since wireless signal is seriously blocked, signal is by very big decaying, above-mentioned terminal It can not be communicated with network.

Summary of the invention

The present invention provides a kind of data transmission method and devices, to enhance covering gain by repeat transmission system When, reduce number of repetition.

A kind of data transmission method is provided in the embodiment of the present invention, comprising:

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission The resource unit RE of channel state information reference signals CSI-RS is keeping for the RE transmitting data other than CSI-RS.

Preferably, all in the CSI-RS subframe of all possible configurations in determining the multiple subframe may be by CSI-RS The RE of occupancy is the RE for being used for transmission CSI-RS reserved in the multiple subframe, each subframe in the multiple subframe In, when carrying out rate-matched and physical resource to physical down channel and mapping, removes and described reserved be used for transmission CSI-RS's RE；

Or, determining the CSI-RS subframe of the configuration in every X subframe with X subframe in the multiple subframe for one group The middle RE occupied by CSI-RS is the RE for being used for transmission CSI-RS reserved in the X subframe, wherein X is natural number, In In each subframe in the X subframe, when carrying out rate-matched and physical resource mapping to physical down channel, described in removal The reserved RE for being used for transmission CSI-RS.

Preferably, including Multicast Broadcast Single Frequency Network MBSFN sub-frame and/or non-MBSFN sub-frame in the multiple subframe；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

Preferably, including non-MBSFN sub-frame and MBSFN sub-frame in the multiple subframe, or, including in every X subframe When non-MBSFN sub-frame and MBSFN sub-frame, further comprise:

The region MBSFN in the MBSFN subframe is according to occupied by the cell own reference signal CRS in non-MBSFN sub-frame RE reserve CRS RE, in the MBSFN subframe, when carrying out rate-matched and physical resource to physical down channel and mapping, removal The reserved CRS RE；

And/or in each subframe, it is assumed that control area size is that the control area of the MBSFN sub-frame of system configuration is big The maximum value of small and non-MBSFN sub-frame control area size, carries out rate-matched to physical down channel and physical resource reflects When penetrating, the RE of the corresponding control area of the maximum value is removed；

And/or in MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when transmitting data.

Preferably, identical transmission plan is used when transmitting data in MBSFN sub-frame and non-MBSFN sub-frame, it is specific to wrap It includes:

All in accordance with the first son in the multiple subframe or in the X subframe in MBSFN sub-frame and non-MBSFN sub-frame Transmission plan used in frame is transmitted；Alternatively,

It is transmitted in MBSFN sub-frame and non-MBSFN sub-frame all in accordance with scheduled transmission plan.

Preferably, first subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

Preferably, the scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on dedicated demodulation reference signal DMRS, or uses the P based on DMRS Antenna port random wave bundle figuration mode is transmitted, and P >=1；Alternatively, being adjusted for transmission mode 9 and transmission mode 10 according to using Transmission plan corresponding to the Downlink Control Information DCI format of multi-code word is spent, the DMRS antenna end indicated according to the DCI format Mouth number, part or all of the port in antenna port 7~14 carry out maximum 8 layers of spatial multiplexing transmission.

Preferably, further comprising keeping for the RE transmitting data other than CSI-RS: keeping for control area RE transmitting data in addition；And/or if there is CRS, keeping for the RE transmitting data other than CRS, wherein reserved RE to CRS is CRS RE corresponding to each antenna port where transmission；And/or it if there is DMRS, is keeping for RE transmitting data other than DMRS, wherein keep for the RE of DMRS right in each antenna port where transmission for DMRS The RE answered.

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission The RE of CSI-RS receives data on keeping for the RE other than CSI-RS.

Preferably, all in the CSI-RS subframe of all possible configurations in determining the multiple subframe may be by CSI-RS The RE of occupancy is the RE for being used for transmission CSI-RS reserved in the multiple subframe, each subframe in the multiple subframe In, when carrying out solution physical resource mapping reconciliation rate-matched to physical down channel, removes and described reserved be used for transmission CSI- The RE of RS；

Or, determining the CSI-RS subframe of the configuration in every X subframe with X subframe in the multiple subframe for one group The middle RE occupied by CSI-RS is the RE for being used for transmission CSI-RS reserved in the X subframe, wherein X is natural number, In In each subframe in the X subframe, when carrying out solution physical resource mapping reconciliation rate-matched to physical down channel, removal The reserved RE for being used for transmission CSI-RS.

Preferably, including non-MBSFN sub-frame and/or MBSFN sub-frame in the multiple subframe；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

CRS RE, In are reserved according to the occupied RE of CRS in non-MBSFN sub-frame in the region MBSFN in the MBSFN subframe In MBSFN sub-frame, when carrying out solution physical resource mapping reconciliation rate-matched to physical down channel, the reserved CRS is removed RE；

And/or in each subframe, it is assumed that control area size is that the control area of the MBSFN sub-frame of system configuration is big The maximum value of small and non-MBSFN sub-frame control area size carries out solution physical resource mapping reconciliation speed to physical down channel When rate matches, the RE of the corresponding control area of the maximum value is removed；

And/or in MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when receiving data.

Preferably, identical transmission plan is used when receiving data in MBSFN sub-frame and non-MBSFN sub-frame, it is specific to wrap It includes:

All in accordance with the first son in the multiple subframe or in the X subframe in MBSFN sub-frame and non-MBSFN sub-frame Transmission plan used in frame is received；Alternatively,

It is received in MBSFN sub-frame and non-MBSFN sub-frame all in accordance with scheduled transmission plan.

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

Preferably, the scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on DMRS, or uses the P antenna port random wave bundle based on DMRS Figuration mode is transmitted, and P >=1；Alternatively, for transmission mode 9 and transmission mode 10, according to the DCI format for using scheduling multi-code word Corresponding transmission plan, the part according to the DMRS antenna port number that the DCI format indicates, in antenna port 7~14 Or all of the port carries out maximum 8 layers of spatial multiplexing transmission.

Preferably, receiving data on keeping for the RE other than CSI-RS, further comprise: keep for control area with Data are received on outer RE；And/or if there is CRS, data are received on keeping for the RE other than CRS, wherein keep for The RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or it if there is DMRS, is keeping for Data are received on RE other than DMRS, wherein keep for the RE of DMRS right in each antenna port where transmission for DMRS The RE answered.

A kind of data transmission set is provided in the embodiment of the present invention, comprising:

Determining module when for repeating to transmit same data over multiple subframes, at least determines in the multiple subframe The reserved RE for being used for transmission CSI-RS；

Transmission module, for keeping for the RE transmitting data other than CSI-RS.

Preferably, determining module is further used for:

Determine in the CSI-RS subframe of all possible configurations in the multiple subframe it is all may by CSI-RS occupy RE is right in each subframe in the multiple subframe for the reserved RE for being used for transmission CSI-RS in the multiple subframe When physical down channel carries out rate-matched and physical resource mapping, the reserved RE for being used for transmission CSI-RS is removed；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

Preferably, determining module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, Or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

CRS RE, In are reserved according to the occupied RE of CRS in non-MBSFN sub-frame in the region MBSFN in the MBSFN subframe In MBSFN sub-frame, when carrying out rate-matched and physical resource mapping to physical down channel, the reserved CRS RE is removed；

And/or transmission module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, Or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

In MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when transmitting data.

Preferably, transmission module is further used in MBSFN sub-frame and non-MBSFN sub-frame, phase is used when transmitting data With transmission plan when:

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

Preferably, transmission module is further used for when being transmitted by the scheduled transmission plan:

Preferably, transmission module is further used for: keeping for the RE transmitting data other than control area；And/or such as There are CRS for fruit, are keeping for the RE transmitting data other than CRS, wherein the RE for keeping for CRS is CRS every where transmission RE corresponding to a antenna port；And/or if there is DMRS, keeping for the RE transmitting data other than DMRS, wherein Keeping for the RE of DMRS is DMRS RE corresponding to each antenna port where transmission.

Receiving module, for receiving data on keeping for the RE other than CSI-RS.

Preferably, determining module is further used for:

Determine in the CSI-RS subframe of all possible configurations in the multiple subframe it is all may by CSI-RS occupy RE is right in each subframe in the multiple subframe for the reserved RE for being used for transmission CSI-RS in the multiple subframe When physical down channel carries out solution physical resource mapping reconciliation rate-matched, removes and described reserved be used for transmission CSI-RS's RE；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

And/or receiving module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, Or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

In MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when receiving data.

Preferably, receiving module is further used in MBSFN sub-frame and non-MBSFN sub-frame, phase is used when receiving data With transmission plan when:

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

Preferably, when receiving module is further used for being received by the scheduled transmission plan:

Preferably, receiving module is further used for: receiving data on keeping for the RE other than control area；And/or such as There are CRS for fruit, receive data on keeping for the RE other than CRS, wherein the RE for keeping for CRS is CRS every where transmission RE corresponding to a antenna port；And/or if there is DMRS, data are received on keeping for the RE other than DMRS, wherein Keeping for the RE of DMRS is DMRS RE corresponding to each antenna port where transmission.

The present invention has the beneficial effect that:

In technical solution provided in an embodiment of the present invention, increase obtaining a degree of covering using repeat transmission system When beneficial, since resource impact of multiple subframes in transmission and rate-matched have assumed that identical CSI-RS resource is reserved, In When keeping for the resource unit transmitting data other than CSI-RS, guarantee to participate in every in multiple subframes of cross-subframe channel estimation The data transmission resources number of a subframe is identical；In addition, when there are MBSFN sub-frame and non-MBSFN sub-frame, to MBSFN Subframe and non-MBSFN sub-frame also assume that identical control area resource reservation, assumes identical CRS resource reservation and identical DMRS resource reservation (if there is DMRS), i.e. data are transmitted when transmitting on keeping for the resource unit other than above-mentioned resource, It is further ensured that it is identical for participating in the MBSFN sub-frame of cross-subframe channel estimation and the data transmission resources number of non-MBSFN sub-frame 's.In this way, when reducing iterative transfer times using cross-subframe channel estimation, it can be to avoid because including in different downlink subframes CSI-RS, control area size, CRS situation are different, cause available RE number of the data transmission when carrying out resource impact different, make At the target code bit number different problems of data channel coding and rate-matched, it can guarantee that the data in each subframe are reflected Penetrate the relevant merging that resource size is identical, when so as to support using the estimation of more sub-frame chan-nels.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is data transmission method implementation process diagram in the embodiment of the present invention；

Fig. 2 is the PDSCH resource allocation schematic diagram of mode one in the embodiment of the present invention；

Fig. 3 is that PDSCH can use RE schematic diagram in a PRB of mode one in the embodiment of the present invention；

Fig. 4 is the PDSCH resource allocation schematic diagram of mode two in the embodiment of the present invention；

Fig. 5 is the available RE signal of each subframe in the subframe group comprising CSI-RS of mode two in the embodiment of the present invention Figure；

Fig. 6 is the available RE signal of each subframe in the subframe group not comprising CSI-RS of mode two in the embodiment of the present invention Figure；

Fig. 7 is the reception implementation process diagram of data transmission method in the embodiment of the present invention；

Fig. 8 is data transmission set structural schematic diagram in the embodiment of the present invention；

Fig. 9 is data transmission set receiving portion structural schematic diagram in the embodiment of the present invention；

Figure 10 is architecture of base station schematic diagram in the embodiment of the present invention；

Figure 11 is UE structural schematic diagram in the embodiment of the present invention.

Specific embodiment

Description of specific embodiments of the present invention with reference to the accompanying drawing.

Inventor is during invention it is noted that in existing network, and the terminal to work under some scenes is due to wireless Signal is seriously blocked, and signal is by very big decaying, so that terminal can not be communicated with network, if being directed to these scenes Under terminal using carry out network depth cover, then can greatly increase the networking cost of network, and benefit might not be significant.

Solve the problems, such as this, it is necessary to which a degree of enhancing is carried out to existing covering.And realize coverage enhancement, it is a kind of compared with It is for feasible scheme, it, can be several by being carried out to existing physical channel to existing channel using transmission or similar techniques are repeated Ten times to several hundred times repetition transmission obtain a degree of covering gain.

When using repeating to transmit, in order to reduce the number of repetition transmission, need to use cross-subframe channel estimation technique, and Due to CSI-RS's (channel state information reference signal, channel state information reference signals) Reason is first below illustrated CSI-RS so that can not use the technology well in the prior art.

In LTE system, CSI-RS is sent on 1,2,4 or 8 antenna port, respectively corresponds antenna port p=15, p= 15,16, p=15 ..., 18 and p=15 ..., 22.CSI-RS only gives a definition in Δ f=15kHz configuration.

Multiple CSI-RS can be configured in one given cell:

Terminal assumes 0 or 1 non-zero power CSI-RS；Terminal assumes 0 or multiple zero energy CSI-RS；When high level is believed Certain positions in 16 bits are enabled in ZeroPowerCSI-RS (zero energy CSI-RS, abbreviation ZP CSI-RS) to be set as 1, terminal is false If the corresponding 4 port position CSI-RS is zero energy, unless the non-zero power that these resource elements and high-level signaling configure CSI-RS (abbreviation NZP XSI-RS) overlapping.Wherein, bit and 4 port CSI-RS configuration number correspond, the left side first A bit corresponds to the minimum call number of CSI-RS.

CSI-RS is occurred over just: descending time slot, and conventional CP (Cyclic Prefix, cyclic prefix) and extension CP are full respectively Condition shown in sufficient table 15.5-1 and 15.5-2；And in the sub-frame configuration cycle T according to CSI-RS_CSI-RSAnd sub-frame offset Δ_CSI-RSIt is transmitted in determining downlink subframe, as enumerated in table 15.5-3.I.e. the subframe comprising CSI-RS will meet:Table can be respectively configured in non-zero power CSI-RS and zero energy CSI-RS Configuration indexing parameter I in 15.5-3_CSI-RS。

Terminal assumes that CSI-RS is not sent in the following cases: the special subframe of 2 subframe structure of type, CSI-RS with it is synchronous Signal, PBCH (Physical broadcast channel, Physical Broadcast Channel) and SIB-1 The subframe that (SystemInformationBlockType1, system information block 1) clashes；It is configured with paging (paging) letter The subframe of breath.

Table 15.5-1:Mapping from CSI reference signal configuration to (k', l') for (under conventional CP, CSI-RS configuration indexes money of the corresponding CSI-RS under different antennae port to normal cyclic prefix Source mapping position (k', l')).

Table 15.5-2:Mapping from CSI reference signal configuration to (k', l') for (under extension CP, CSI-RS configuration indexes corresponding CSI-RS under different antennae port to extended cyclic prefix Resource mapping position (k', l')).

Table 15.5-3:CSI reference signal subframe configuration (CSI-RS sub-frame configuration)

Below again to MBSFN (Multicast Broadcast Single Frequency Network, multicast and broadcast list Frequency network) subframe is illustrated.

In LTE system, MBSFN sub-frame is defined；In a radio frame, for other than subframe 0 and subframe 5 Other subframes, can be configured to MBSFN sub-frame in principle.MBSFN sub-frame is divided two regions, the region MBSFN and non- The region MBSFN.In the region MBSFN, there is no CRS (Cell-specific Reference Signal, cell own reference letters Number or public reference signal), in the non-region MBSFN, there are CRS.PMCH (Physical Multicast Channel, physics Multicast Channel) only transmitted in the region MBSFN of MBSFN sub-frame using extension CP, i.e. meet OFDM in first time slot (Orthogonal Frequency Division Multiplex, orthogonal frequency division multiplexing) symbol number is l >=l_PMCHStart's Sign-on transmission, wherein l_PMCHStartFor the length in the non-region MBSFN in the MBSFN sub-frame of high-level signaling configuration.In The non-region MBSFN in MBSFN sub-frame, as control area can transmit PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), using with the consistent CP type transfers of subframe 0, for dispatching PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) or PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).Non- MBSFN zone length in MBSFN sub-frame is configurable, can be 0,1,2, for The MBSFN sub-frame for only transmitting PMCH, is configurable to 0, for supporting the MBSFN sub-frame of PDSCH transmission to can be configured to 1 or 2, depending on Depending on the port number of system CRS, when CRS is configured to 4 antenna port, 2 are configured to, i.e., reserved 2 OFDM symbols are used for transmission PDCCH.For non-MBSFN sub-frame, the size of control area can be 1,2,3, as shown in table 6.7-1.

Table 6.7-1:Number of OFDM symbols used for PDCCH (the occupied OFDM symbol of PDCCH Number (i.e. control area size)).

PDSCH can be transmitted in the MBSFN sub-frame other than following situation MBSFN sub-frame: 1) high-rise notice needs When receiving the MBSFN sub-frame of PMCH；2) PRS (Positioning reference signals, positioning are configured to transfer Reference signal) and PRS be only configured to transmit in the MBSFN subframe and when subframe 0 is using routine CP.Wherein PDSCH can be transmitted The PDSCH that transmits in the MBSFN subframe of MBSFN sub-frame only support using based on DMRS (Dedicate at present DeModulation Reference Signal, dedicated demodulation reference signal) transmission transmission mode 9 and mode 10, such as following table It is shown.

Inventors have found that if necessary to obtain a degree of covering gain by repeating transmission, then in order to as far as possible Number of repetition is reduced, cross-subframe channel estimation is a kind of effective means.So-called cross-subframe channel estimation refers to and utilizes multiple sons Reference signal in frame carries out joint channel estimation, a kind of typical processing mode be the result of estimating multiple sub-frame chan-nels into Row weighted average.In order to fight transmitting terminal and receiving end frequency departure that may be present, correspondingly, the data portion of multiple subframes It can carry out re-demodulation after relevant merge.Relevant combined premise is that the transmission signal in the multiple subframes for being used to merge is phase With.

But due to CSI-RS in the prior art according to the period of configuration in specific RE (Resource Element, money Source unit) resource transmission, the CSI-RS situation for including in different downlink subframes is different, and data transmission is caused to carry out resource impact When available RE number it is different, cause data channel coding different with the target code bit number of rate-matched, data are in more subframes It repeats not can be carried out relevant merging when transmitting.In addition, it is existing between MBSFN sub-frame and non-MBSFN sub-frame such as whether in the presence of CRS, it control area size, whether there is the difference such as DMRS, transmission plan difference, also result in data transmission and reflected in progress resource Available RE number when penetrating is different.A kind of Data duplication transmission plan is provided based on this, in the embodiment of the present invention, it is every to guarantee Data mapping resource size in a subframe is identical, to be able to relevant merging when supporting using the estimation of more sub-frame chan-nels.Under Implementation in face of this programme is illustrated.

Fig. 1 is data transmission method implementation process diagram, as shown, may include steps of:

Step 101 when repeating to transmit same data over multiple subframes, is at least determined and to be reserved in the multiple subframe It is used for transmission the RE of CSI-RS；

Step 102 is keeping for the RE transmitting data other than CSI-RS.

For the ease of stating and understanding, multiple subframes are also known as sub-frame set below.

In implementation, CSI-RS includes zero energy CSI-RS and/or non-zero power CSI-RS.

In implementation, further also need to receive data on keeping for the RE other than control area；And/or if there is CRS receives data on keeping for the RE other than CRS, wherein the RE for keeping for CRS is CRS in each antenna where transmission RE corresponding to port；And/or if there is DMRS, data are received on keeping for the RE other than DMRS, wherein keep for The RE of DMRS is DMRS RE corresponding to each antenna port where transmission；I.e. in addition to keeping for the RE of CSI-RS that cannot use It transmits other than data, it keeps for the RE of control area that can not be used to transmit data, if there is CRS, then keep for CRS RE can not be used to transmit data, if there is DMRS, then keep for DMRS RE can not be used to transmit data；I.e..

In implementation, which can data coherency between the more subframes of progress when receiving end is estimated using more sub-frame chan-nels Merge.

In implementation, which can demodulate based on CRS or based on DMRS, but in one estimated using more sub-frame chan-nels In each subframe in subframe group, it is based on same demodulation reference signal.

In implementation, transmitting terminal first determines that some physical channel time domain repeats the sub-frame set of transmission, then in the subframe collection In each subframe in conjunction, data resource mapping configures the RE that may be occupied without using any CSI-RS；Alternatively, in the subframe collection In every X subframe in conjunction, for each subframe in the X subframe, data resource mapping is without using in the X subframe CSI-RS configures the RE that may be occupied.That is, configuring resource reservation according to the maximum CSI-RS in system when data resource maps CSI-RS resource, or with X subframe for one group, provided in each subframe according to the maximum CSI-RS that subframe in the group is configured in organizing CSI-RS resource is reserved in source, the data resource in each subframe in same group of subframe to guarantee to participate in more sub-frame chan-nel estimations Number is identical.

In specific implementation, there can be following two mode:

In mode one, each subframe in multiple subframes, keeping for the resource unit of CSI-RS is all according in system Maximum CSI-RS configuration resource reservation the resource unit for being used for transmission CSI-RS.

Mode two, the resource unit that CSI-RS is kept in multiple subframes, be by multiple subframes with X subframe be one When group, use the resource unit of transmission CSI-RS as every height in the subframe group configuration in X subframe in each subframe The resource unit for keeping for CSI-RS of frame, wherein X is natural number.

It include non-MBSFN sub-frame and/or MBSFN sub-frame in the multiple subframe in implementation；Or, including in every X subframe Non-MBSFN sub-frame and/or MBSFN sub-frame.

Specifically, can only include non-MBSFN sub-frame in the sub-frame set being made of multiple subframes, can also only include MBSFN sub-frame can also include MBSFN sub-frame and non-MBSFN sub-frame simultaneously；

Correspondingly, in every group of subframe, can only include when being divided into one group in the sub-frame set with every X subframe Non-MBSFN sub-frame can also only include MBSFN sub-frame, can also simultaneously include MBSFN sub-frame and non-MBSFN sub-frame；

It include non-MBSFN sub-frame and MBSFN sub-frame in the sub-frame set of multiple subframes composition in implementation, or, when described It include non-MBSFN sub-frame and MBSFN in X subframe in every group of subframe when being divided into one group in sub-frame set with every X subframe When subframe:

The resource that can be used for data transmission in unified MBSFN sub-frame and non-MBSFN sub-frame is also needed, that is, needs unification To the reserved of the resources such as CRS, DMRS, control area other than CSI-RS in MBSFN sub-frame；Additionally need unification Data transmission scheme used in MBSFN sub-frame and non-MBSFN sub-frame.

Specifically, for mode one, when including simultaneously MBSFN sub-frame and non-MBSFN sub-frame in sub-frame set, alternatively, For mode two, in every X subframe in the sub-frame set, when in the X subframe simultaneously comprising MBSFN sub-frame and non- When MBSFN sub-frame, it may further include:

1) CRS money is reserved according to the CRS resource mapping method in non-MBSFN sub-frame in the region MBSFN in the MBSFN subframe Without using these reserved CRS resources when source, data carry out resource impact in the MBSFN subframe；

And/or 2) in each subframe, when data resource maps, it is assumed that the control area size in the subframe is system The maximum value of the control area size of the control area size and non-MBSFN sub-frame of the MBSFN sub-frame of configuration, that is, be not mapped to institute It states before maximum value indicates in several OFDM symbols；

And/or 3) data transmission in MBSFN sub-frame and non-MBSFN sub-frame use identical transmission plan；Such as based on Identical reference signal is demodulated, and transmission port number is identical, using identical precoding mode (such as all be single-ended oral instructions It is defeated, it is perhaps all to send diversity transmission to be perhaps all random wave bundle figuration (RBF) transmission or be all identical port number and layer Several spatial multiplexing transmissions, the antenna port used are identical).

In implementation, to be to reach to use identical transmission side in MBSFN sub-frame and non-MBSFN sub-frame for data transmission Case specifically may be defined that

Data transmission is all based on CRS or is all based on DMRS demodulation.

In implementation, to be to reach to use identical transmission side in MBSFN sub-frame and non-MBSFN sub-frame for data transmission Case can also arrange, in data transmission, all in accordance with certain in the sub-frame set in MBSFN sub-frame and non-MBSFN sub-frame Transmission plan used in a specific sub-frame is transmitted:

A) it is always transmitted according to the transmission plan in first subframe；For example, first in the sub-frame set It is scheduled in subframe and uses transmission mode 9, and dispatch uses DCI format (Downlink Control Information format, descending control signaling format) 1A, and the subframe is non-MBSFN sub-frame, then, in the subframe collection In all subframes in conjunction, all in accordance with transmission mode 9DCI format 1A transmission mode of the scheduling in non-MBSFN sub-frame into Row transmits, that is, is based on CRS, if the antenna port number of PBCH is 1, single antenna port transmission is used, otherwise using transmission point Collection transmission；Transmission mode 9 is used in another example being scheduled in first subframe in the sub-frame set, and dispatch uses DCI format 1A, and the subframe is MBSFN sub-frame, then, in all subframes in the sub-frame set, all in accordance with transmission The transmission mode of mode 9DCI format 1A scheduling in the MBSFN subframe is transmitted, that is, DMRS is based on, in antenna port 7 Use single antenna port transmission；Transmission mode 9 is used in another example being scheduled in first subframe in the sub-frame set, and Dispatch uses DCI format 2C, then in all subframes in the sub-frame set, all in accordance with transmission mode 9DCI The antenna port number notified in format 2C dispatch is transmitted, that is, is based on DMRS, the portion in antenna port 7~14 Divide or all of the port carries out maximum 8 layers of spatial multiplexing transmission；

Alternatively, b) always being transmitted according to the transmission plan in MBSFN sub-frame；Such as the single antenna port based on DMRS 7 transmission.

In implementation, to be to reach to use identical transmission side in MBSFN sub-frame and non-MBSFN sub-frame for data transmission Case can also about be scheduled in MBSFN sub-frame and non-MBSFN sub-frame and be transmitted all in accordance with certain scheduled transmission plan；For example, Tentation data repeats transmission and the single antenna port 7 or 8 based on DMRS is always used to transmit, or always uses the P based on DMRS Antenna port random wave bundle figuration mode is transmitted；Or for transmission mode 9 always according to use DCI format 2C dispatch Mode is transmitted, and transmission mode 10 is always transmitted in the way of using DCI format 2D to dispatch, i.e. basis The DMRS antenna port number of dispatch instruction, part or all of the port in antenna port 7~14 carry out maximum 8 layers Spatial multiplexing transmission.

The implementation in a manner of above two is illustrated by example below.

To carry DL-SCH (Down-link Shared Channel, DSCH Downlink Shared Channel) TB (Transport Block, transmission block) PDSCH (Physical Downlink Shared CHannel, Physical Downlink Shared Channel) for. Transmission data are repeated in the N=100 subframe on PDSCH, it is assumed that CSI-RS is configured to 1 port and configures 0 (i.e. table 15.5-1 In CSI reference signal configuration be 0, transmission port be the port CSI-RS 15), the son of CSI-RS Frame configures cycle T_CSI-RS=10ms and sub-frame offset Δ_CSI-RS=4 (i.e. CSI-RS-SubframeConfig in table 15.5-3 I_CSI-RS=9), then there is following embodiment.

Mode one

The present embodiment is each of multiple subframes to the resource unit for illustrating to keep for CSI-RS in multiple subframes The all reserved embodiment of the resource of possible configuration transmission CSI-RS in subframe.

In embodiment, Fig. 2 is that the PDSCH of mode one repeats the resource allocation schematic diagram transmitted, and Fig. 3 is one of mode one PDSCH can use RE schematic diagram in PRB, be illustrated below with reference to Fig. 2,3.

In each subframe in N=100 subframe, for the RE of control area, the RE for carrying CRS, carrying DMRS The RE of RE (if it does, i.e. PDSCH is demodulated based on DMRS) and all possible carrying CSI-RS are not used in PDSCH transmission.

Further, if CRS port number is that RE corresponding to the port 1, CRS 0 is not used, if CRS port number is 2, RE corresponding to the port CRS 0 and 1 is not used；If CRS port number is that RE corresponding to the port 4, CRS 0~3 is not used.

Further, DMRS and DMRS port number are 1 or 2 if it exists, then RE corresponding to DMRS port 7/8 is not used, DMRS and DMRS port number are greater than 2 if it exists, then RE corresponding to DMRS port 7~10 without using (wherein DMRS port 11~ 14 resource is with port 7~10).Further, the size of control area can be 0~4 symbol；Which can support X Estimate for more sub-frame chan-nels of any value.

Specifically with FDD (Frequency Division Duplex, frequency division duplex) for, it is assumed that from radio frames #M time slot # The resource for continuous 100 subframes that 8 (i.e. subframe #4) start is transmitted several times for identical DL-SCH TB's, as shown in Fig. 2, Its available RE in a PRB (Physical Resource Block, Physical Resource Block) is as shown in figure 3, to can in system The resource that can be configured as CSI-RS is all done reserved, and wherein PDSCH transmission maximum can occupy 6 PRB transmission.It needs to illustrate That the port DMRS of the CRS of 4 ports, 4 or 8 is given in Fig. 3, the mapping resource of middle port 11~14 with port 7~10, By taking 3 Signed Domination regions as an example, these parameters can change according to the actual situation；

Further, when in 100 subframes there are when MBSFN sub-frame, for example, the only subframe 0 and subframe 5 in each radio frames For non-MBSFN sub-frame, when other subframes are all MBSFN sub-frame, and assume that the control area of MBSFN sub-frame is configured to 2 symbols, The control area of non-MBSFN sub-frame is configured as 3, then is 3 all in accordance with control area in MBSFN sub-frame and non-MBSFN sub-frame A OFDM symbol reserves resource, i.e., data are not mapped in preceding 3 OFDM symbols in each subframe, such as MBSFN The subframe #5 of frame, the control area size of actual disposition are only 2 OFDM symbols, but in order to consistent with MBSFN, need to vacate Preceding 3 OFDM symbols do not transmit data；It is provided in the region MBSFN in the MBSFN subframe according to the CRS in non-MBSFN sub-frame Source mapping mode reserves CRS resource, i.e. other subframes other than subframe #5 equally reserve all in accordance with CRS present in subframe #5 The position RE of CRS is mapped without data, then the data transmission in all subframes can be all as described in Figure 3 with RE number；The biography used Transmission scheme is consistent in each subframe, and foregoing manner specifically can be used and determine.

Data in each subframe for repeating transmission, the available RE number determined in the manner described above carry out channel coding and Rate-matched.

Mode two:

The present embodiment is in multiple subframes with X to the resource unit for illustrating to keep for CSI-RS in multiple subframes When subframe is one group, in CSI-RS subframe of each subframe in every X subframe according to institute's actual disposition in the X subframe CSI-RS resource carries out reserved embodiment.

In embodiment, Fig. 4 is the PDSCH resource allocation schematic diagram of mode two, and Fig. 5 is the son comprising CSI-RS of mode two The available RE schematic diagram of each subframe in frame group, Fig. 6 be mode two the subframe group not comprising CSI-RS in each subframe can With RE schematic diagram, it is illustrated below with reference to Fig. 4,5,6.

In N=100 subframe, with X subframe be one group, in X=4, every 4 subframes in, for control area Match in RE, the RE for carrying CRS, the RE (if it does, i.e. PDSCH is demodulated based on DMRS) of carrying DMRS and the X=4 subframe The RE of the carrying CSI-RS set is not used in PDSCH transmission.

Further, DMRS and DMRS port number are 1 or 2 if it exists, then RE corresponding to DMRS port 7/8 is not used, DMRS and DMRS port number are greater than 2 if it exists, then RE corresponding to DMRS port 7~10 is not used.

It should be noted that the CRS of 4 ports is given in embodiment, in Fig. 4, and 4 or 8 port DMRS, middle port 11 ~14 mapping resource is with port 7~10, and by taking 2 Signed Domination regions as an example, but these parameters can be according to the actual situation It changes.

Specifically by taking FDD as an example, it is assumed that the resource of continuous 100 subframes since radio frames #M time slot #8 (i.e. subframe #4) For being transmitted several times for identical DL-SCH TB, and the more sub-frame chan-nel estimations of every 4 subframes, one group of carry out, as shown in Figure 4 not Synteny is the estimation grouping of more sub-frame chan-nels, and the available RE in every 4 subframes is as shown in Figure 5,6, only to being matched in 4 subframes The resource for being set to CSI-RS is done reserved, i.e., is configured according to CSI-RS, and only the subframe 4 in each radio frames exists and passes CSI-RS It is defeated, and transmitted for single port 15, then first subframe group includes the subframe #4 to subframe #7 in radio frames #M, wherein in subframe #4 Comprising CSI-RS, without CSI-RS in other subframes, in order to which the PDSCH in this unified 4 subframes can use RE number, to this 4 sons Frame carries out resource impact all in accordance with Fig. 5, i.e., there is no subframe #5,6,7 of CSI-RS transmission to be also required to according in subframe #4 CSI-RS configuration reserves resource to CSI-RS；Second subframe group includes subframe #8,9 and radio frames #M+1 in radio frames #M In subframe #0,1, all there is no CSI-RS to configure in this 4 subframes, does not need transmission CSI-RS, then all presses to this 4 subframes Resource impact is carried out according to Fig. 6, i.e., does not reserve CSI-RS resource；And so on.

Further, when in X=4 subframe there are when MBSFN sub-frame, for example, the only subframe 0 and subframe in each radio frames 5 be non-MBSFN sub-frame, when other subframes are all MBSFN sub-frame, and assumes that the control area of MBSFN sub-frame is configured to 2 symbols Number, the control area of non-MBSFN sub-frame is configured as 1, then all in accordance with control area in MBSFN sub-frame and non-MBSFN sub-frame Resource is reserved for 2 OFDM symbols, i.e., for first subframe group, data are not mapped to preceding 2 OFDM symbol in each subframe On number, such as subframe #4, #6, #7 of non-MBSFN sub-frame, the control area size of actual disposition is only 1 OFDM symbol Number, but in order to consistent with MBSFN, it needs to vacate preceding 2 OFDM symbols and does not transmit data；The area MBSFN in the MBSFN subframe CRS resource is reserved according to the CRS resource mapping method in non-MBSFN sub-frame in domain, i.e. subframe #4, #6, #7 will be according to subframe # CRS present in 5 equally reserves the position RE of CRS, maps without data, then in 4 subframes in first subframe group Data transmission can be all as shown in Figure 5 with RE number；The transmission plan used is consistent in each subframe, and aforementioned side specifically can be used Formula determines.For second subframe group, control area size and CRS resource are determined also according to aforesaid way, it can be with RE number such as Shown in Fig. 6.The transmission plan used is consistent in each subframe, and foregoing manner specifically can be used and determine.

Data in each subframe for repeating transmission, the available RE number determined in the manner described above carry out channel coding and When rate-matched.

Correspondingly, be directed to the transmission plan of network side, a kind of data transmission method is additionally provided in the embodiment of the present invention Reception scheme.It is illustrated below.

Fig. 7 is the reception implementation process diagram of data transmission method, as shown, may include steps of:

Step 701 when repeating to transmit same data over multiple subframes, is at least determined and to be reserved in the multiple subframe It is used for transmission the RE of CSI-RS；

Step 702 receives data on keeping for the RE other than CSI-RS.

In implementation, determine it is all in the CSI-RS subframe of all possible configurations in the multiple subframe may be by CSI-RS The RE of occupancy is the RE for being used for transmission CSI-RS reserved in the multiple subframe, each subframe in the multiple subframe In, when carrying out solution physical resource mapping reconciliation rate-matched to physical down channel, removes and described reserved be used for transmission CSI- The RE of RS；

It include non-MBSFN sub-frame and/or MBSFN sub-frame in multiple subframes in implementation；Or, comprising non-in every X subframe MBSFN sub-frame and/or MBSFN sub-frame.

It include non-MBSFN sub-frame and MBSFN sub-frame in the multiple subframe, or, including in every X subframe in implementation When non-MBSFN sub-frame and MBSFN sub-frame, it may further include:

In implementation, in MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when receiving data, it is specific to wrap It includes:

In implementation, first subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

In implementation, scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on DMRS, or uses the P antenna port random wave bundle based on DMRS Figuration mode is transmitted, and P >=1；Alternatively, for transmission mode 9 and transmission mode 10, according to the DCI format for using scheduling multi-code word Corresponding transmission plan, according to the DMRS antenna port number that dispatch indicates, part in antenna port 7~14 or All of the port carries out maximum 8 layers of spatial multiplexing transmission.

In implementation, receive data on keeping for the RE other than CSI-RS, further comprise: keep for control area with Data are received on outer RE；And/or if there is CRS, data are received on keeping for the RE other than CRS, wherein keep for The RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or it if there is DMRS, is keeping for Data are received on RE other than DMRS, wherein keep for the RE of DMRS right in each antenna port where transmission for DMRS The RE answered.

Based on the same inventive concept, a kind of data transmission set is additionally provided in the embodiment of the present invention, due to the equipment solution Certainly the principle of problem is similar to a kind of data transmission method, therefore the implementation of the equipment may refer to the implementation of method, repetition Place repeats no more.

Fig. 8 is data transmission set structural schematic diagram, as shown, may include: in equipment

Determining module 801 when for repeating to transmit same data over multiple subframes, is at least determined in the multiple subframe In reserve the resource unit RE for being used for transmission CSI-RS；

Transmission module 802, for keeping for the RE transmitting data other than CSI-RS.

In implementation, determining module is further used for:

Or, determining the son of the CSI-RS of the configuration in every X subframe with X subframe in the multiple subframe for one group The RE occupied in frame by CSI-RS is the RE for being used for transmission CSI-RS reserved in the X subframe, wherein X is natural number, In each subframe in the X subframe, when carrying out rate-matched and physical resource mapping to physical down channel, institute is removed State the reserved RE for being used for transmission CSI-RS.

It include non-MBSFN sub-frame and/or MBSFN sub-frame in the multiple subframe in implementation；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

In implementation, determining module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, Or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

And/or transmission block is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, or, When in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

In implementation, transmission module is further used in MBSFN sub-frame and non-MBSFN sub-frame, uses phase when transmitting data With transmission plan when:

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

In implementation, transmission module is further used for when by scheduled transmission plan:

In implementation, transmission module is further used for: keeping for the RE transmitting data other than control area；And/or such as There are CRS for fruit, are keeping for the RE transmitting data other than CRS, wherein the RE for keeping for CRS is CRS every where transmission RE corresponding to a antenna port；And/or if there is DMRS, keeping for the RE transmitting data other than DMRS, wherein Keeping for the RE of DMRS is DMRS RE corresponding to each antenna port where transmission.

Fig. 9 is data transmission set receiving portion structural schematic diagram, as shown, may include: in equipment

Determining module 901 when for repeating to transmit same data over multiple subframes, is at least determined in the multiple subframe In reserve the resource unit RE for being used for transmission CSI-RS；

Receiving module 902, for receiving data on keeping for the RE other than CSI-RS.

In implementation, determining module is further used for:

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

In implementation, receiving module is further used in MBSFN sub-frame and non-MBSFN sub-frame, uses phase when receiving data With transmission plan when:

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

In implementation, receiving module is further used for by scheduled transmission plan:

In implementation, receiving module is further used for: receiving data on keeping for the RE other than control area；And/or such as There are CRS for fruit, receive data on keeping for the RE other than CRS, wherein the RE for keeping for CRS is CRS every where transmission RE corresponding to a antenna port；And/or if there is DMRS, data are received on keeping for the RE other than DMRS, wherein Keeping for the RE of DMRS is DMRS RE corresponding to each antenna port where transmission.

For convenience of description, each section of apparatus described above is divided into various modules with function or unit describes respectively. Certainly, each module or the function of unit can be realized in same or multiple softwares or hardware in carrying out the present invention.

When implementing technical solution provided in an embodiment of the present invention, can implement as follows.

Figure 10 is architecture of base station schematic diagram, as shown, including: in base station

Processor 1000 executes following process for reading the program in memory 1020:

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission The resource unit of channel state information reference signals CSI-RS；

Transceiver 1010 executes following process for sending data under the control of processor 1000:

Keeping for the RE transmitting data other than CSI-RS.

In implementation, determine it is all in the CSI-RS subframe of all possible configurations in the multiple subframe may be by CSI-RS The RE of occupancy is the RE for being used for transmission CSI-RS reserved in the multiple subframe, each subframe in the multiple subframe In, when carrying out rate-matched and physical resource to physical down channel and mapping, removes and described reserved be used for transmission CSI-RS's RE；

In implementation, method according to claim 1 or 2 includes non-multicast broadcast single frequency network in the multiple subframe Network MBSFN sub-frame and/or MBSFN sub-frame；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

It include non-MBSFN sub-frame and MBSFN sub-frame in the multiple subframe, or, including in every X subframe in implementation When non-MBSFN sub-frame and MBSFN sub-frame, further comprise:

CRS RE, In are reserved according to the occupied RE of CRS in non-MBSFN sub-frame in the region MBSFN in the MBSFN subframe In MBSFN sub-frame, when carrying out rate-matched and physical resource mapping to physical down channel, the reserved exclusive ginseng of cell is removed Examine signal CRS RE；

In implementation, in MBSFN sub-frame and non-MBSFN sub-frame, identical transmission plan is used when transmitting data, it is specific to wrap It includes:

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

In implementation, scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on dedicated demodulation reference signal DMRS, or uses the P based on DMRS Antenna port random wave bundle figuration mode is transmitted, and P >=1；Alternatively, being adjusted for transmission mode 9 and transmission mode 10 according to using Transmission plan corresponding to the DCI format of multi-code word is spent, according to the DMRS antenna port number that dispatch indicates, in antenna port Part or all of the port in 7~14 carry out maximum 8 layers of spatial multiplexing transmission.

In implementation, when transmitting the data over multiple subframes, the RE transmitting data other than CSI-RS is being kept for, into one Step includes: to keep for the RE transmitting data other than control area；And/or it if there is CRS, is keeping for other than CRS RE transmitting data, wherein keeping for the RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or If there is DMRS, the RE transmitting data other than DMRS is being kept for, wherein keeping for the RE of DMRS is DMRS in transmission institute Each antenna port corresponding to RE.

Wherein, in Figure 10, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1000 one or more processors represented and memory 1020 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1010 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1000 is responsible for management bus architecture and common processing, memory 1020 can store processor 1000 The used data when executing operation.

Figure 11 is UE structural schematic diagram, as shown, user equipment includes:

Processor 1100 executes following process for reading the program in memory 1120:

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission The resource unit of CSI-RS；

Transceiver 1110 executes following process for sending data under the control of processor 1100:

Data are received on keeping for the RE other than CSI-RS.

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

In implementation, scheduled transmission plan, specifically:

In implementation, when transmitting the data over multiple subframes, data are received on keeping for the RE other than CSI-RS, into one Step includes: to receive data on keeping for the RE other than control area；And/or it if there is CRS, is keeping for other than CRS Data are received on RE, wherein keeping for the RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or If there is DMRS, data are received on keeping for the RE other than DMRS, wherein keeping for the RE of DMRS is DMRS in transmission institute Each antenna port corresponding to RE.

Wherein, in Figure 11, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1100 one or more processors represented and memory 1120 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1110 can be multiple element, that is, include transmitter and receiver, provide for logical with various other devices over a transmission medium The unit of letter.For different user equipmenies, user interface 1130, which can also be, the interface for needing equipment external is inscribed, even The equipment connect includes but is not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 1100, which is responsible for management bus architecture and common processing, memory 1120, can store processor 1100 and exists Execute used data when operation.

In conclusion obtaining certain journey using repeat transmission system in technical solution provided in an embodiment of the present invention When the covering gain of degree, since resource impact of multiple subframes in transmission and rate-matched have assumed that identical CSI-RS money Source is reserved, when keeping for the resource unit transmitting data other than CSI-RS, guarantees to participate in the multiple of cross-subframe channel estimation The data transmission resources number of each subframe in subframe is identical；In addition, when there are MBSFN sub-frames and non-MBSFN sub-frame When, identical control area resource reservation is also assumed that MBSFN sub-frame and non-MBSFN sub-frame, assumes identical CRS resource reservation And the resource unit other than above-mentioned resource is being kept in identical DMRS resource reservation (if there is DMRS), i.e. data transmission When upper transmission, it is further ensured that the data transmission resources of the MBSFN sub-frame and non-MBSFN sub-frame that participate in cross-subframe channel estimation Number is identical.In this way, when reducing iterative transfer times using cross-subframe channel estimation, it can be to avoid because of different downlink subframes In the CSI-RS that includes, control area size, CRS situation it is different, cause data to transmit the available RE when carrying out resource impact Number is different, causes the target code bit number different problems of data channel coding and rate-matched, can guarantee each subframe In data mapping resource size it is identical, so as to support using more sub-frame chan-nels estimation when relevant merging.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Claims

1. a kind of data transmission method characterized by comprising

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission channel The resource unit RE of state information reference signals CSI-RS is keeping for the RE transmitting data other than CSI-RS；

Determine in the CSI-RS subframe of all possible configurations in the multiple subframe it is all may by CSI-RS occupy RE be The RE for being used for transmission CSI-RS reserved in the multiple subframe, in each subframe in the multiple subframe, to physics When down channel carries out rate-matched and physical resource mapping, the reserved RE for being used for transmission CSI-RS is removed；

Or, determining quilt in the CSI-RS subframe of the configuration in every X subframe with X subframe in the multiple subframe for one group The RE that CSI-RS is occupied is the RE for being used for transmission CSI-RS reserved in the X subframe, wherein X is natural number, described In each subframe in X subframe, when carrying out rate-matched and physical resource mapping to physical down channel, remove described reserved The RE for being used for transmission CSI-RS.

2. the method according to claim 1, wherein including Multicast Broadcast Single Frequency Network in the multiple subframe MBSFN sub-frame and/or non-MBSFN sub-frame；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

3. according to the method described in claim 2, it is characterized in that, in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, or, further comprising when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

And/or in each subframe, it is assumed that control area size be system configuration MBSFN sub-frame control area size and The maximum value of the control area size of non-MBSFN sub-frame, when carrying out rate-matched and physical resource mapping to physical down channel, Remove the RE of the corresponding control area of the maximum value；

4. according to the method described in claim 3, it is characterized in that, transmitting data in MBSFN sub-frame and non-MBSFN sub-frame When use identical transmission plan, specifically include:

All in accordance in the first subframe in the multiple subframe or in the X subframe in MBSFN sub-frame and non-MBSFN sub-frame The transmission plan used is transmitted；Alternatively,

5. according to the method described in claim 4, it is characterized by:

First subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

6. according to the method described in claim 4, it is characterized in that, the scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on DMRS, or uses the P antenna port random wave bundle figuration based on DMRS Mode is transmitted, and P >=1；Alternatively, for transmission mode 9 and transmission mode 10, according to the downlink control letter for using scheduling multi-code word Transmission plan corresponding to DCI format is ceased, according to the DMRS antenna port number that the DCI format indicates, in antenna port 7~14 In part or all of the port carry out maximum 8 layers of spatial multiplexing transmission.

7. method according to any one of claims 1 to 6, which is characterized in that transmitted on keeping for the RE other than CSI-RS Data further comprise: keeping for the RE transmitting data other than control area；And/or it if there is CRS, is keeping for RE transmitting data other than CRS, wherein the RE for keeping for CRS is CRS corresponding to each antenna port where transmission RE；And/or if there is DMRS, keeping for the RE transmitting data other than DMRS, wherein keep for the RE of DMRS to be DMRS RE corresponding to each antenna port where transmission.

8. a kind of data transmission method characterized by comprising

When repeating to transmit same data over multiple subframes, at least determine that reserves in the multiple subframe is used for transmission CSI- The RE of RS receives data on keeping for the RE other than CSI-RS；

Determine in the subframe of all possible configuration CSI-RS in the multiple subframe it is all may by CSI-RS occupy RE be The RE for being used for transmission CSI-RS reserved in the multiple subframe, in each subframe in the multiple subframe, to physics When down channel carries out solution physical resource mapping reconciliation rate-matched, the reserved RE for being used for transmission CSI-RS is removed；

Or, determining quilt in the CSI-RS subframe of the configuration in every X subframe with X subframe in the multiple subframe for one group The RE that CSI-RS is occupied is the RE for being used for transmission CSI-RS reserved in the X subframe, wherein X is natural number, described In each subframe in X subframe, when carrying out solution physical resource mapping reconciliation rate-matched to physical down channel, described in removal The reserved RE for being used for transmission CSI-RS.

9. according to the method described in claim 8, it is characterized in that, in the multiple subframe comprising non-MBSFN sub-frame and/or MBSFN sub-frame；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

10. according to the method described in claim 9, it is characterized in that, in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, or, further comprising when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

And/or in each subframe, it is assumed that control area size be system configuration MBSFN sub-frame control area size and The maximum value of the control area size of non-MBSFN sub-frame carries out solution physical resource mapping reconciliation rate to physical down channel Timing removes the RE of the corresponding control area of the maximum value；

11. according to the method described in claim 10, it is characterized in that, receiving number in MBSFN sub-frame and non-MBSFN sub-frame According to when use identical transmission plan, specifically include:

All in accordance in the first subframe in the multiple subframe or in the X subframe in MBSFN sub-frame and non-MBSFN sub-frame The transmission plan used is received；Alternatively,

12. according to the method for claim 11, it is characterised in that:

First subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

13. according to the method for claim 11, which is characterized in that the scheduled transmission plan, specifically:

It is transmitted using the single antenna port 7 or 8 based on DMRS, or uses the P antenna port random wave bundle figuration based on DMRS Mode is transmitted, and P >=1；Alternatively, for transmission mode 9 and transmission mode 10, according to using the DCI format institute of scheduling multi-code word right The transmission plan answered, according to the DMRS antenna port number that the DCI format indicates, part in antenna port 7~14 or All of the port carries out maximum 8 layers of spatial multiplexing transmission.

14. according to any method of claim 8 to 13, which is characterized in that connect on keeping for the RE other than CSI-RS Data are received, further comprises: receiving data on keeping for the RE other than control area；And/or if there is CRS, reserved To receiving data on the RE other than CRS, wherein the RE for keeping for CRS is CRS corresponding to each antenna port where transmission RE；And/or if there is DMRS, data are received on keeping for the RE other than DMRS, wherein keep for the RE of DMRS to be DMRS RE corresponding to each antenna port where transmission.

15. a kind of data transmission set characterized by comprising

Determining module when for repeating to transmit same data over multiple subframes, at least being determined and being reserved in the multiple subframe The RE for being used for transmission CSI-RS；

Transmission module, for keeping for the RE transmitting data other than CSI-RS；

Determining module is further used for:

16. equipment according to claim 15, which is characterized in that in the multiple subframe comprising non-MBSFN sub-frame and/or MBSFN sub-frame；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

17. equipment according to claim 16, which is characterized in that determining module is further used in the multiple subframe Comprising non-MBSFN sub-frame and MBSFN sub-frame, or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

And/or transmission module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, or, every X When in a subframe including non-MBSFN sub-frame and MBSFN sub-frame:

18. equipment according to claim 17, which is characterized in that transmission module is further used in MBSFN sub-frame and non- In MBSFN sub-frame, when using identical transmission plan when transmitting data:

19. equipment according to claim 18, it is characterised in that:

First subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

20. equipment according to claim 19, which is characterized in that transmission module is further used for by the scheduled biography When transmission scheme is transmitted:

21. 5 to 20 any equipment according to claim 1, which is characterized in that transmission module is further used for: reserved To the RE transmitting data other than control area；And/or if there is CRS, the RE transmitting data other than CRS is being kept for, Wherein, keeping for the RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or if there is DMRS, Keeping for the RE transmitting data other than DMRS, wherein the RE for keeping for DMRS is DMRS in each antenna where transmission RE corresponding to port.

22. a kind of data transmission set characterized by comprising

Receiving module, for receiving data on keeping for the RE other than CSI-RS；

Determining module is further used for:

Determine in the CSI-RS subframe of all possible configurations in the multiple subframe it is all may by CSI-RS occupy RE be The RE for being used for transmission CSI-RS reserved in the multiple subframe, in each subframe in the multiple subframe, to physics When down channel carries out solution physical resource mapping reconciliation rate-matched, the reserved RE for being used for transmission CSI-RS is removed；

23. equipment according to claim 22, which is characterized in that in the multiple subframe comprising non-MBSFN sub-frame and/or MBSFN sub-frame；

Or, including non-MBSFN sub-frame and/or MBSFN sub-frame in every X subframe.

24. equipment according to claim 23, which is characterized in that determining module is further used in the multiple subframe Comprising non-MBSFN sub-frame and MBSFN sub-frame, or, when in every X subframe including non-MBSFN sub-frame and MBSFN sub-frame:

And/or receiving module is further used in the multiple subframe comprising non-MBSFN sub-frame and MBSFN sub-frame, or, every X When in a subframe including non-MBSFN sub-frame and MBSFN sub-frame:

25. equipment according to claim 24, which is characterized in that receiving module is further used in MBSFN sub-frame and non- In MBSFN sub-frame, when using identical transmission plan when receiving data:

26. equipment according to claim 25, it is characterised in that:

First subframe is first subframe in the multiple subframe or the X subframe；

Alternatively, first subframe is MBSFN sub-frame；

Alternatively, first subframe is non-MBSFN sub-frame.

27. equipment according to claim 25, which is characterized in that receiving module is further used for by the scheduled transmission When scheme is received:

28. according to any equipment of claim 22 to 27, which is characterized in that receiving module is further used for: reserved To receiving data on the RE other than control area；And/or if there is CRS, data are received on keeping for the RE other than CRS, Wherein, keeping for the RE of CRS is CRS RE corresponding to each antenna port where transmission；And/or if there is DMRS, Data are received on keeping for the RE other than DMRS, wherein the RE for keeping for DMRS is DMRS in each antenna where transmission RE corresponding to port.