CN107205275A

CN107205275A - A kind of information transferring method and device

Info

Publication number: CN107205275A
Application number: CN201610156926.9A
Authority: CN
Inventors: 张雯; 夏树强; 戴博; 石靖; 韩祥辉; 梁春丽; 张文峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-03-18
Filing date: 2016-03-18
Publication date: 2017-09-26
Also published as: WO2017157349A1

Abstract

This application discloses a kind of information transferring method and device, methods described includes：Position and/or the pattern of transfer resource are determined according to predetermined manner or the eNB mode notified, information is transmitted on the transfer resource, wherein, described information includes at least one of：Downlink Control Information, downlink data, upstream data, ascending control information.Such scheme, which can be alleviated, to be supported to transmit the influence caused to respective when short TTI UE and tradition UE is transmitted in same asset.

Description

Information transmission method and device

Technical Field

The present invention relates to the field of wireless communications, and in particular, to an information transmission method and apparatus.

Background

The rapid development of mobile internet and internet of things has led to explosive growth of data traffic and the widespread rise of diverse and differentiated services. 5G, a new generation of mobile communication technology, will support higher rate (Gbps), massive links (1M/Km) than 4G²) Ultra-low latency (1ms), higher reliability, hundreds of times energy efficiency increase, etc. to support new demand changes. The ultra-low time delay is used as a key index of the 5G technology, and directly influences the development of time delay limited services such as the Internet of vehicles, industrial automation, remote control, smart power grids and the like. A current series of standard studies on 5G latency reduction are advancing.

The reduction of Transmission Time Interval (TTI) is taken as an important research direction for reducing the current delay, and aims to reduce the TTI with the length of 1ms to the length of 0.5ms or even 1-2 OFDM symbols, reduce the minimum scheduling Time by times, and further reduce the single Transmission delay by times without changing the frame structure. Currently, the Third Generation Partnership Project (3 GPP) has already set aside a discussion of system design at short (short) TTIs in the RAN1 and RAN2 working groups.

When there are both User Equipment (UE) or terminal (UE) supporting short TTI and legacy (legacy) UE supporting 1ms TTI in the system, if the resources of the two are time-division, the time delay of the UE supporting short TTI will be increased. If the resources of both are frequency-divided, it is not flexible and there may be a waste of resources. One method for alleviating the disadvantages of the foregoing method is to transmit the short TTI-supporting UE and legacy UE on the same resource, but this method will have a certain impact on the transmission of both UEs.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide an information transmission method and apparatus, which can mitigate an influence on respective transmissions when a UE supporting a short TTI and a conventional UE transmit on the same resource.

The embodiment of the invention provides an information transmission method, which comprises the following steps:

determining the position and/or pattern of transmission resources according to a preset mode or a mode notified by an eNB;

transmitting information on the transmission resource, wherein the transmission resource is a broadcast resource,

wherein the information comprises at least one of: downlink control information, downlink data, uplink data, and uplink control information.

Optionally, when a resource corresponding to the transmission of the designated data overlaps with the transmission resource, the designated data is transmitted while avoiding the transmission resource.

Optionally, the step of avoiding the transmission resource for transmission of the designated data includes: and puncturing the designated data on the transmission resources, or performing rate matching on resources except the transmission resources by the designated data.

Optionally, the transmission resource is one of the following in a frequency domain:

resource Elements (REs) with a specified interval, wherein the interval is either preset or signaled by the eNB;

one or more continuous or discontinuous Physical Resource Blocks (PRBs);

mixing the above two.

Optionally, the transmission resource has a specified interval within one PRB or one Resource Block Group (RBG) or M PRBs, where M is a positive integer greater than 1, and M is preset or notified by the eNB.

Optionally, the determining the position and/or pattern of the transmission resource according to a preset manner or an eNB notification manner includes:

determining a location and/or pattern of the transmission resources based on at least one of a cell identity, a TTI where the information is transmitted, and a transmission mode.

Optionally, a part or all of the transmission resources belong to a resource corresponding to a channel state information reference signal (CSI-RS), or belong to a resource corresponding to a measurement reference signal (SRS).

Optionally, the TTI length for transmitting the information is less than 1 ms.

Optionally, the transmission resources avoid designated resources.

Optionally, transmitting information on transmission resources that avoid the specified resource comprises: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

Alternatively,

when the information is downlink information, the specified resource includes at least one of the following:

a resource corresponding to a physical hybrid automatic repeat request indicator channel (PHICH);

a resource corresponding to a Physical Control Format Indicator Channel (PCFICH);

a resource corresponding to a Physical Downlink Control Channel (PDCCH);

and resources corresponding to a downlink demodulation reference signal (DMRS).

Alternatively,

when the information is uplink information, the specified resource includes at least one of the following:

resources corresponding to the uplink DMRS;

and on a cell-specific measurement reference signal (SRS) subframe, resources corresponding to SRS bandwidth.

Alternatively,

the frequency domain range corresponding to the resource corresponding to the downlink DMRS is one of the following:

transmitting a frequency domain range of the information;

the eNB indicates a frequency domain range corresponding to information notified by Downlink Control Information (DCI) or Radio Resource Control (RRC) signaling.

Alternatively,

the port information corresponding to the downlink DMRS is preset, or is notified by the eNB through DCI or RRC signaling or a System Information Block (SIB).

Alternatively,

and the TTI for transmitting the uplink information consists of continuous N symbols except the appointed resource, wherein N is a positive integer.

The embodiment of the invention also provides an information transmission method, which is applied to the UE and comprises the following steps:

acquiring the position and/or pattern of the first resource according to the notification of the eNB;

transmit information avoiding the first resource.

Optionally, the avoiding of the first resource transmission information includes: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.

An embodiment of the present invention further provides an information transmission apparatus, including:

a determining module, configured to determine a location and/or a pattern of a transmission resource according to a preset manner or an eNB notification manner;

a first transmission module, configured to transmit information on the transmission resource;

Alternatively,

and when the resources corresponding to the transmission of the designated data are overlapped with the transmission resources, the designated data are transmitted by avoiding the transmission resources.

Alternatively,

the transmission resource is one of the following in the frequency domain:

REs with a specified interval, wherein the interval is preset or informed by the eNB;

one or more contiguous or non-contiguous PRBs;

mixing the above two.

Alternatively,

the transmission resources have a specified interval within one PRB or one RBG or M PRBs, where M is a positive integer greater than 1, and M is preset or notified by the eNB.

Optionally, the determining module is configured to: determining a location and/or pattern of the transmission resources based on at least one of a cell identity, a TTI where the information is transmitted, and a transmission mode.

Alternatively,

part or all of the transmission resources belong to resources corresponding to a channel state information reference signal (CSI-RS) or resources corresponding to a measurement reference signal (SRS).

Alternatively,

the TTI length for transmitting the information is less than 1 ms.

Alternatively,

the transmission resources avoid designated resources.

Optionally, the first transmission module enables transmission of information on transmission resources that avoid the specified resource by: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

Alternatively,

a resource corresponding to the PHICH;

resources corresponding to the PCFICH;

resources corresponding to the PDCCH;

and (4) downlink resources corresponding to the DMRS.

Alternatively,

resources corresponding to the uplink DMRS;

and on the special SRS subframe of the cell, the resource corresponding to the SRS bandwidth.

Alternatively,

transmitting a frequency domain range of the information;

and the eNB informs the corresponding frequency domain range of the information through DCI or RRC signaling.

Alternatively,

the port information corresponding to the downlink DMRS is preset, or is notified by the eNB through DCI or RRC signaling or SIB.

Alternatively,

The embodiment of the invention also provides an information transmission device, which is applied to the UE and comprises the following steps:

a processing module, configured to obtain a location and/or a pattern of the first resource according to the notification of the eNB;

and the second transmission module is used for avoiding the first resource transmission information.

Optionally, the second transmission module avoids the first resource transmission information by: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.

In addition, the embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method is implemented.

In the scheme provided by the application, the position and/or pattern of a transmission resource is determined according to a preset mode or a mode notified by an eNB, and information is transmitted on the transmission resource, wherein the information includes at least one of the following: downlink control information, downlink data, uplink data, and uplink control information. In this way, not only can the UE supporting the short TTI transmit on the same resource as the legacy UE, but also the impact on the respective transmissions when both transmit on the same resource can be mitigated.

Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

Fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention;

fig. 2 is another flowchart of an information transmission method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of information transmission according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of information transmission according to a second embodiment of the present invention;

fig. 5 is a schematic diagram of information transmission according to a third embodiment of the present invention;

fig. 6 is a first schematic diagram of information transmission according to a fourth embodiment of the present invention;

fig. 7 is a second schematic diagram of information transmission according to a fourth embodiment of the present invention;

fig. 8 is a third schematic diagram of information transmission according to a fourth embodiment of the present invention;

fig. 9 shows CSI resources corresponding to CSI configuration #0 in a conventional CP according to a sixth embodiment of the present invention;

fig. 10 is a diagram illustrating information transmission according to a seventh embodiment of the present invention;

fig. 11 is a schematic diagram of an information transmission apparatus according to an embodiment of the present invention;

fig. 12 is another schematic diagram of an information transmission apparatus according to an embodiment of the present invention.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings, and it should be understood that the embodiments described below are only for illustrating and explaining the present application and are not intended to limit the present application.

Fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention. As shown in fig. 1, the information transmission method provided in this embodiment includes the following steps:

step 101: determining the position and/or pattern of transmission resources according to a preset mode or a mode notified by a base station (eNB);

step 102: transmitting information on the transmission resources.

The method is applied to a terminal supporting a short TTI, for example. However, this is not limited in this application.

Optionally, when a resource corresponding to the transmission of the designated data overlaps with the transmission resource, the designated data is transmitted while avoiding the transmission resource. For example, the designated data is punctured on the transmission resource, or the designated data is rate-matched on a resource other than the transmission resource. Specifically, when the method is applied to a terminal supporting short TTI, when resources corresponding to data transmission of other terminals (such as other terminals supporting short TTI or legacy terminals) overlap with the transmission resources, puncturing data of the other terminals on the transmission resources, or performing rate matching on data of the other terminals on resources other than the transmission resources. In this way, when the UE supporting the short TTI and the legacy UE transmit on the same resource, the impact on the respective transmissions can be mitigated.

one or more continuous or discontinuous Physical Resource Blocks (PRBs);

mixing the above two.

The transmission Resource has a specified interval in one Physical Resource Block (PRB) or one Resource Block Group (RBG) or M PRBs, where M is a positive integer greater than 1, and M is preset or notified by the eNB.

Optionally, step 101 comprises:

Optionally, part or all of the transmission resources belong to resources corresponding to a Channel State Information Reference Signal (CSI-RS), or belong to resources corresponding to a measurement Reference Signal (SRS).

Optionally, the TTI length for transmitting the information is less than 1 ms.

Optionally, the transmission resources avoid designated resources.

Wherein transmitting information on transmission resources that avoid the specified resource comprises: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

Wherein, when the information is downlink information, the specified resource includes at least one of the following:

a resource corresponding to a Physical Hybrid ARQ Indicator Channel (PHICH);

a resource corresponding to a Physical Downlink Control Channel (PDCCH);

and resources corresponding to a downlink Demodulation Reference Signal (DMRS).

Wherein, the frequency domain range corresponding to the resource corresponding to the downlink DMRS is one of the following:

transmitting a frequency domain range of the information;

the eNB may determine a frequency domain range corresponding to Information notified by Downlink Control Information (DCI) or Radio Resource Control (RRC) signaling.

Wherein, when the information is uplink information, the specified resource includes at least one of:

resources corresponding to the uplink DMRS;

And the TTI for transmitting the uplink information consists of continuous N symbols except the specified resource, wherein N is a positive integer.

Fig. 2 is another flowchart of an information transmission method according to an embodiment of the present invention. As shown in fig. 2, the information transmission method provided in this embodiment is applied to a UE, and includes the following steps:

step 201: acquiring the position and/or pattern of the first resource according to the notification of the eNB;

step 202: transmit information avoiding the first resource.

Wherein the avoiding of the first resource transmission information comprises: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.

Here, the above method is applied to, for example, legacy UEs, such as UEs supporting a short TTI. At this time, the first resource is a resource corresponding to the other UE for transmitting data. The method is suitable for transmission of downlink information and also suitable for transmission of uplink information, which is not limited in the embodiment of the present invention.

The technical solution of the present application will be described below with reference to specific examples.

Example one

The present embodiment provides a method for sharing the same resource by multiple UEs, wherein the transmission resources of the multiple UEs partially overlap.

This embodiment is described by taking an example that a UE supporting a short (short) TTI transmits information on the same resource as a legacy (legacy) UE. The method can also be used for two UEs supporting short TTI to transmit information on the same resource, and the method can also be used for other types of UEs. The embodiment of the present invention is not limited thereto.

In this embodiment, a UE supporting Short TTI is taken as an example for explanation, which is abbreviated as S-UE, and the TTI for transmitting information by S-UE may have a length of 1, 2, 3, 4, 5, 6, or 7 symbols, and is not limited to S-UE in practical application. In this embodiment, a method for transmitting downlink information is provided. To avoid confusion, the channel of the S-UE is preceded by "S-". This embodiment includes one of the following: s-downlink control information, S-PDSCH, and S-PHICH.

When the TTI where the S-UE transmits information contains the symbol where the PDCCH is located, in the TTI, the S-UE transmits on symbols other than the symbol where the PDCCH is located. As shown in fig. 3, a subframe includes 7 TTIs, each TTI includes 2 symbols, the gray region in fig. 3 is the symbol where the PDCCH is located, and then the downlink signal in TTI #0 is transmitted only on the fourth symbol and the following symbols. Here, the benefits of avoiding PDCCH transmission symbols are: interference to the PDCCH is avoided. The transmission of the S-UE is transparent to the transmission of the legacy UE, the Downlink information of the S-UE is transmitted by puncturing on the resource of the Physical Downlink Shared Channel (PDSCH) of the legacy UE, and the eNB should appropriately reduce the code rate of the legacy UE in order to enable the legacy UE to correctly receive the Downlink information.

For a normal Cyclic Prefix (CP), one subframe contains 14 symbols, and the symbols in one subframe have indices of 0, 1, 2, … …, and 13 in time order. The symbol index that can be used for S-UE to transmit downlink signal is k, k +1, … …, 13, where k may be a preset value, such as 2, or, for example, the number of PRBs included in the downlink bandwidth isWhen k is 4, whenWhen k is 3 or k is determined by the number of symbols occupied by the PDCCH in the system, for example, the number of symbols occupied by the PDCCH is 2, then k is 2, that is, the 3 rd symbol and the following symbols in one subframe may be used to transmit downlink signals. The S-UE can obtain the number of symbols occupied by the PDCCH by receiving the PCFICH.

For extended CP, one subframe contains 12 symbols, and the symbols in one subframe have indices of 0, 1, 2, … …, and 11, respectively, in time order. Wherein, the symbol index available for the S-UE to transmit downlink signal is k, k +1, … …, 11, and like the above, k may be preset or determined by the number of symbols occupied by the PDCCH.

Example two

In this embodiment, a method for transmitting downlink information is provided. The embodiment takes S-UE as an example for illustration, and is not limited to S-UE in practical application. The downlink information includes downlink control information and/or downlink data.

If there are symbols of the PDCCH in the TTI where the S-UE transmits the downlink information, such as TTIs #0 and 1 in FIG. 3, the TTI #0 is not available to the S-UE if the downlink information of the S-UE is not allowed to be transmitted in the symbols including the PDCCH. Thus, the S-UE can defer at least until TTI #1 to transmit data, which can reduce the transmission delay of the S-UE, contrary to the requirement of the S-UE to reduce the delay. To solve this problem, the UE should be allowed to transmit in the symbols of the PDCCH, and the PDCCH should be punctured on the resource where the downlink information of the S-UE is located. As shown in fig. 4, the PDCCH is transmitted on the first three symbols, and in TTI #0, downlink information of the S-UE is punctured in the PDCCH region, i.e., in the hatched portion of fig. 4. For legacy UEs, the transmission of the S-UE is transparent, and the eNB should increase the aggregation level of the PSCCH of the legacy UE appropriately to ensure that the legacy UE can correctly receive the PDCCH. The TTI is taken as two symbols for illustration, but in practical application, the TTI length is not limited to this TTI length, and may be any one of 1 to 7 symbols.

The PCFICH is used to indicate the number of transmission symbols of the PDCCH, and the transmission symbols are transmitted on 16 REs, and if the downlink information of the S-UE occupies the resources of the PCFICH and discards the PCFICH information, the UE may not correctly receive Control Format Indicator (CFI) information, so that the PDCCH region is judged incorrectly, and a corresponding error is caused when the PDCCH and the PHICH are received. To avoid this, optionally, the downlink information of the S-UE should avoid the RE location where the PCFICH is located, i.e. be transmitted on REs other than the RE where the PCFICH is located. The downlink information of the S-UE may be mapped on the RE where the PCFICH is located, and then the PCFICH is used to drop the data of the S-UE for transmission, or rate matching may be performed on the REs other than the RE where the PCFICH is located.

In the existing LTE system, the index of the starting RE corresponding to the Resource Element Group (REG) occupied by the PCFICH is Wherein, the number of subcarriers included for one PRB, i.e. 12,in order to identify the physical cell,the number of PRBs corresponding to the bandwidth of the downlink system, for example for a 20MHz system,the REGs occupied by the PCFICH are the next 4 REs excluding the Cell Specific Reference Signal (CRS) position from the initial RE, and the CRS ports on the symbol where the PCFICH is located are port 0 and port 1, regardless of the actual CRS ports.

The PHICH carries a Hybrid Automatic Repeat reQuest (HARQ) acknowledgement/negative acknowledgement (ACK/NACK), which indicates whether the eNB correctly receives transmission of a Physical Uplink Shared Channel (PUSCH), and if downlink information of the S-UE occupies resources of the PHICH and discards the PHICH information, the UE may not correctly receive HARQ ACK/NACK information, and unnecessary retransmission may be caused or a data packet of the retransmission may not be retransmitted. To avoid this, optionally, the downlink information of the S-UE should be transmitted avoiding the RE location where the PHICH is located, i.e., on the REs other than the RE where the PHICH is located. And puncturing the downlink information of the S-UE on the RE where the PHICH is positioned, or performing rate matching on the downlink information of the S-UE on the REs except the RE where the PHICH is positioned.

Optionally, downlink information of the S-UE should avoid the PCFICH and the RE where the PHICH is located.

EXAMPLE III

In this embodiment, a method for transmitting downlink information is provided. The embodiment takes S-UE as an example for illustration, and is not limited to S-UE in practical application.

Optionally, the downlink information of the S-UE should avoid REs corresponding to the existing DMRSs, i.e., be transmitted on REs other than the existing DMRSs. And perforating the downlink information of the S-UE on the RE where the existing DMRS is located, or performing rate matching on the downlink information of the S-UE on the REs except the RE where the existing DMRS is located. Thus, if the eNB sends the DMRS to the legacy UE, the transmission of the S-UE does not affect the transmission of the legacy UE. As shown in fig. 5, the S-UEs transmit in the gray area. Optionally, the resource mapped by the downlink information of the S-UE should avoid the REs corresponding to the DMRSs of the ports 7/8/11/13 and 9/10/12/14, or the eNB may also notify the UE of which port to avoid the DMRS, for example, 1 bit (bit) indicates whether the RE corresponds to the DMRS of the port 7/8/11/13 or the RE corresponds to the DMRS of the port 9/10/12/14.

Optionally, the eNB may indicate to the S-UE whether the downlink information of the S-UE avoids REs corresponding to the existing DMRSs. Thus, when resources of the S-UE and a legacy UE based on CRS demodulation overlap, the eNB can inform the S-UE not to avoid REs corresponding to the existing DMRS, so that resources used by the S-UE for transmission can be increased. When resources of the S-UE and a legacy UE demodulated based on the DMRS are overlapped, the eNB can inform the S-UE to avoid the RE corresponding to the existing DMRS, so that the DMRS of the legacy UE can be normally transmitted. Alternatively, if the eNB indicates to the S-UE that the existing DMRSs need to be avoided, the resource mapped by the downlink information of the S-UE should avoid REs corresponding to the DMRSs of the ports 7/8/11/13 and 9/10/12/14, or the eNB may also inform the S-UE of which port' S DMRS is avoided. Such as through DCI notification or RRC signaling.

Optionally, the eNB may indicate to the S-UE on which PRBs the downlink information of the S-UE needs to avoid the DMRS, or on which PRBs the DMRS does not need to be avoided, for example, the eNB indicates these states to the S-UE with 2 bit: the existing DMRSs do not need to be avoided on all allocated resources, avoided on the lower frequency half resources, and avoided on the higher frequency half resources. Or, the eNB indicates, to the S-UE, a Resource Indication Value (RIV) corresponding to a PRB that needs to avoid the DMRS, that is, indicates the Resource Indication Value by using the downlink Resource allocation type 2, or may indicate the Resource Indication Value by using another Resource allocation type. Alternatively, if the eNB indicates to the S-UE a PRB that needs to avoid the existing DMRSs, on the PRB, the resource mapped by the downlink information of the S-UE should avoid REs corresponding to the DMRSs of the ports 7/8/11/13 and 9/10/12/14, or the eNB may also notify the S-UE of which port the DMRSs should avoid.

Example four

In this embodiment, a method for transmitting uplink information is provided. The embodiment takes S-UE as an example for illustration, and is not limited to S-UE in practical application. And the uplink information is uplink control information and/or uplink data.

On the cell-specific SRS subframe, the S-UE should avoid the REs corresponding to the SRS bandwidth on the last symbol, for example, the SRS bandwidth is 96 PRBs, and then the central 1152(96 × 12 ═ 1152) REs on the last symbol cannot be used for transmission by the S-UE.

If the TTI of the S-UE transmission information contains the symbols corresponding to the legacy DMRS, for example, for the normal CP, the legacy DMRS occupies the 4 th symbol of each slot, and for the extended CP, the legacy DMRS occupies the 3 rd symbol of each slot. On the symbol where legacy DMRS is located, the DMRS of the S-UE is also transmitted on the DMRS of the legacy UE. Alternatively, the DMRS of the S-UE and the DMRS of the legacy UE may be code-division transmitted on the same symbol. As shown in fig. 6, fig. 6 is an uplink subframe under the normal CP, and includes 14 symbols. The short TTI occupies 4 symbols, its DMRS is sent on the symbols of the existing DMRS, e.g. the grey symbols in the short TTI in fig. 6, and the PUSCH of the S-UE is sent on the other 3 symbols.

Or, if the TTI of the S-UE transmitting information includes a symbol corresponding to legacy DMRS, the uplink signal of the S-UE should avoid the existing DMRS symbol, as shown in fig. 7, where fig. 7 is an uplink subframe under a normal CP and includes 14 symbols. The DMRS of the S-UE is a symbol in a diagonal line portion in fig. 7, and the other two symbols are used for transmitting data, that is, a grid symbol. Thus, when the S-UE and the legacy UE occupy the same resource, the S-UE does not interfere with the DMRS of the legacy UE. Although there is some Interference between the data of the S-UE and the data of the legacy UE, the eNB may reduce or eliminate the Interference between the two by means of power control or Successive Interference Cancellation (SIC).

Or, the short TTI is divided to avoid the symbol where the DMRS is located, that is, the short TTI does not include the symbol of the DMRS. As shown in fig. 8, fig. 8 is an uplink subframe under the normal CP, and includes 14 symbols. Except for two symbols occupied by the DMRS, other symbols are divided into 4 TTIs, each TTI comprises 3 symbols, the DMRS of the S-UE is a symbol with a diagonal line part, and the PUSCH of the S-UE is a symbol with a grid part.

Optionally, on the cell-specific SRS subframe, the PUSCH of the S-UE should also avoid the REs corresponding to the SRS bandwidth. The REs corresponding to the SRS width may be avoided in one TTI in the above manner, or a TTI may be defined on a symbol other than the symbol where the DMRS and SRS are located, that is, a symbol that does not include the DMRS and SRS in a short TTI.

Optionally, the PUSCH of the S-UE should also avoid the REs where a Rank Indication (RI) or an ACK/NACK or a Channel Quality Indication (CQI) or a Precoding Matrix Indication (PMI) is located in the legacy PUSCH. The eNB may avoid the RE where the information in legacy PUSCH is located by scheduling, or the eNB may notify the S-UE of the location where the information of legacy UE is located, and the S-UE avoids the location of the information.

EXAMPLE five

And the S-UE transmits the uplink information on the resource corresponding to the SRS. For example, the eNB configures a cell-specific SRS subframe and SRS bandwidth, then the eNB may schedule the S-UE to transmit within the SRS bandwidth within the cell-specific SRS subframe. For FDD, i.e., transmission on the last symbol of the SRS subframe, the occupied frequency domain resource may be the entire SRS bandwidth or a part of the SRS bandwidth, such as preset, or indicated in DCI.

The eNB may avoid collision of the information of the S-UE with SRS of other UEs through scheduling, such as time division, or frequency division. The present application is not limited thereto.

Optionally, a part of the transmission resources for the S-UE to transmit the uplink information may be on the symbol corresponding to the SRS, and another part of the transmission resources may be on other symbols, for example, on symbols adjacent to the SRS.

EXAMPLE six

And the S-UE receives the downlink information on the resource corresponding to the CSI-RS, and the eNB sends the downlink information on the resource corresponding to the CSI-RS. For example, the eNB configures the CSI-RS for the UE, and then the eNB may schedule the S-UE to transmit on the resource corresponding to the CSI-RS. The S-UE receives downlink information according to CSI-RS configuration of the eNB. The frequency domain range of the S-UE transmission information may be the entire system bandwidth, or a preset frequency domain range, or indicated by the eNB, such as indicated in DCI. In fig. 9, the CSI resource corresponding to CSI configuration #0 under the conventional CP is shown.

In such a way, for legacy UE which does not support CSI-RS, the eNB punches the data of legacy UE on the resources corresponding to the CSI-RS, and the code rate should be properly reduced to reduce the influence. For legacy UE supporting CSI-RS, the eNB can bypass the data of the legacy UE from the CSI-RS for rate matching, and performance is improved.

Optionally, a part of the transmission resources of the downlink information may be on resources corresponding to the CSI-RS, and another part of the transmission resources may be on other resources.

Optionally, the downlink information may be demodulated by using a CRS, or may also be demodulated by using a DMRS, if the downlink information is demodulated by using a DMRS, the DMRS may be sent on a resource corresponding to the CSI-RS, for example, one RE in one PRB is used for transmitting the DMRS, and the method is not limited in practical application.

EXAMPLE seven

In this embodiment, a method for transmitting uplink/downlink information is provided. The embodiment takes S-UE as an example for illustration, and is not limited to S-UE in practical application.

The pattern and/or location of the transmission resources for the S-UE to transmit Information is either preset or signaled by the eNB, such as in a System Information Block (SIB) or RRC signaling.

Optionally, the pattern of the transmission resources is REs with a specified interval in a frequency domain, and the interval is preset or notified by the eNB. For example, there are discrete 4 REs equally spaced on each symbol, as shown by TTIs #3 and 5 in fig. 10. Alternatively, the density of the pattern of the transmission resources may be notified in DCI or RRC signaling. Alternatively, the eNB may inform the S-UE of the offset of the pattern, such as in fig. 10, the offset of TTI #3 is 2 and the offset of TTI #5 is 0. Optionally, the pattern of the transmission resources may be defined in one PRB or RBG or M PRBs in the frequency domain, where M is an integer greater than 1, and M is preset or notified by the eNB. E.g. equally spaced in one PRB, or unequally spaced, e.g. occupying subcarriers #2, 4, 9 in one PRB. The eNB may inform the UE in a related resource manner, such as allocating PRB #2, 3, 6, 9, and the transmission resource is several REs in these several PRBs in the frequency domain, where the REs in each PRB are as shown in fig. 10.

Alternatively, the specified interval may be uniform or non-uniform. Such as occupying subcarriers #0, 2, 10 in one PRB. Alternatively, the location of the transmission resource may be preset, or configured by the eNB, such as the transmission resource is transmitted over the full system bandwidth, or the transmission resource is transmitted over a partial PRB, which may be indicated by the related resource allocation type.

Optionally, the transmission resource may be one or more continuous or discontinuous PRBs. For example, assuming that the system bandwidth is 20MHz, the PRB indexes are 0 to 99, respectively, and the transmission resources may be PRB #0 to 11, or 0, 2, 3, 6, 9, and 19. The location of the transmission resource may be preset or eNB configured. For S-UE, the PRB occupies 12 subcarriers in the frequency domain, and the symbol number corresponding to TTI in the time domain.

Alternatively, the transmission resource may be partly RE with a specified interval and partly one or more continuous or discontinuous PRBs. In this way, the S-UE transmits only on a part of resources in one subframe, and the eNB may puncture data for transmitting other UEs only on the part of resources, which may reduce the impact on the transmission of other UEs. Optionally, the eNB notifies the other UEs of the dropped partial resource, for example, notifies the location and/or pattern of the dropped partial resource, which may be notified in RRC signaling or SIB or DCI. In this way, other UEs can know which resources on the REs are not their own, so that data at corresponding positions may not be combined during retransmission and combining, thereby reducing the impact of puncturing on performance.

Optionally, the pattern and/or the position of the transmission resource are determined by the cell identifier, the TTI and the transmission mode of the transmission information, as shown in fig. 10, the resource of the diagonal line portion is an RE of the S-UE transmission information, and for TTI #3, the pattern and/or the position of the transmission resource should avoid the position where the CRS is located; for TTI #5, the pattern and/or location of the transmission resources is independent of the location of the CRS. When the transmission mode is Space-Frequency Block coding (SFBC), the number of REs in the Frequency domain is a multiple of 2 or a multiple of 4. When the transmission mode is Space-Time Block Code (STBC), the number of REs in the Time domain is a multiple of 2 or a multiple of 4.

Alternatively, the pattern and/or location of transmission resources over all TTIs on a subframe may be determined according to the cell identity.

Optionally, the downlink information may be demodulated by using a CRS, or may also be demodulated by using a DMRS, if the downlink information is demodulated by using a DMRS, the DMRS may be sent on the part of the transmission resources, for example, all REs or part of REs on the first symbol in the TTI, and the practical application is not limited to the foregoing manner.

Alternatively, the transmission mode of the downlink information may be an existing transmission mode or a mixture of existing transmission modes, for example, assuming that the transmission resource is partially RE with a specified interval and partially is one or more continuous or discontinuous PRBs, one transmission mode is adopted on discrete RE and another transmission mode is adopted on one or more discontinuous PRBs. Alternatively, a new transmission mode, such as STBC, may be defined.

In addition, an embodiment of the present invention further provides an information transmission apparatus, as shown in fig. 11, the apparatus includes:

Here, the apparatus is provided to a terminal supporting a short TTI, for example. However, the embodiment of the present invention is not limited thereto.

Optionally, when a resource corresponding to the transmission of the designated data overlaps with the transmission resource, the designated data is transmitted while avoiding the transmission resource. For example, the designated data is punctured on the transmission resource, or the designated data is rate-matched on a resource other than the transmission resource. Specifically, when the apparatus is installed in a terminal supporting short TTI, for example, and when a resource corresponding to data transmission of another terminal (e.g., another terminal supporting short TTI or a legacy terminal) overlaps with the transmission resource, the apparatus punctures data of the other terminal on the transmission resource, or performs rate matching on data of the other terminal on a resource other than the transmission resource.

one or more contiguous or non-contiguous PRBs;

mixing the above two.

The transmission resource has a specified interval within one PRB or one RBG or M PRBs, where M is a positive integer greater than 1, and M is preset or notified by an eNB.

Optionally, part or all of the transmission resources belong to resources corresponding to CSI-RS, or belong to resources corresponding to SRS.

Optionally, a transmission time interval, TTI, length for transmitting the information is less than 1 ms.

Optionally, the transmission resources avoid designated resources.

Wherein the first transmission module enables transmission of information on transmission resources that avoid the specified resource by: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

Alternatively,

a resource corresponding to the PHICH;

resources corresponding to the PCFICH;

resources corresponding to the PDCCH;

and (4) downlink resources corresponding to the DMRS.

transmitting a frequency domain range of the information;

and the base station eNB informs the corresponding frequency domain range of the information through DCI or RRC signaling.

Alternatively,

resources corresponding to the uplink DMRS;

In addition, an embodiment of the present invention further provides an information transmission apparatus, which is applied to a UE, and as shown in fig. 12, the apparatus includes:

the processing module is used for acquiring the position and/or pattern of the first resource according to the notification of the base station eNB;

Wherein the second transmission module avoids the first resource transmission information by: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.

The UE is, for example, a legacy UE, and the other UE is, for example, a UE supporting a short TTI. At this time, the first resource is a resource corresponding to the other UE for transmitting data. However, the embodiment of the present invention does not limit the type of the UE.

In addition, an embodiment of the present invention further provides a terminal, including: a processor and a memory storing processor-executable instructions that, when executed by the processor, perform the steps in the module shown in fig. 11.

In addition, an embodiment of the present invention further provides a terminal, including: a processor and a memory storing processor-executable instructions that, when executed by the processor, perform the steps in the module shown in fig. 12.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method described in the embodiment corresponding to fig. 1 is implemented.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method described in the embodiment corresponding to fig. 2 is implemented.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing associated hardware (e.g., a processor) to perform the steps, and the program may be stored in a computer readable storage medium, such as a read only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, the modules/units in the above embodiments may be implemented in hardware, for example, by an integrated circuit, or may be implemented in software, for example, by a processor executing programs/instructions stored in a memory to implement the corresponding functions. The present application is not limited to any specific form of hardware or software combination.

The foregoing shows and describes the general principles and features of the present application, together with the advantages thereof. The present application is not limited to the above-described embodiments, which are described in the specification and drawings only to illustrate the principles of the application, but also to provide various changes and modifications within the spirit and scope of the application, which are within the scope of the claimed application.

Claims

1. An information transmission method, comprising:

determining the position and/or pattern of transmission resources according to a preset mode or a mode notified by a base station eNB;

2. The method of claim 1,

3. The method of claim 2, wherein the designating the data to be transmitted avoiding the transmission resource comprises: and puncturing the designated data on the transmission resources, or performing rate matching on resources except the transmission resources by the designated data.

4. The method of claim 1,

the transmission resource is one of the following in the frequency domain:

resource Elements (REs) with a specified interval, wherein the interval is preset or informed by an eNB;

one or more continuous or discontinuous physical resource blocks, PRBs;

mixing the above two.

5. The method of claim 4,

the transmission resource has a designated interval in one physical resource block PRB or one resource block group RBG or M PRBs, where M is a positive integer greater than 1, and M is preset or notified by an eNB.

6. The method according to claim 1 or 4, wherein the determining the position and/or pattern of the transmission resource according to a preset mode or a mode notified by the eNB comprises:

determining a location and/or pattern of the transmission resources based on at least one of a cell identity, a transmission time interval, TTI, at which the information is transmitted, and a transmission mode.

7. The method of claim 1,

and part or all of the transmission resources belong to resources corresponding to a channel state information reference signal (CSI-RS), or belong to resources corresponding to a Sounding Reference Signal (SRS).

8. The method of claim 1,

the transmission time interval TTI length for transmitting the information is less than 1 ms.

9. The method of claim 1,

the transmission resources avoid designated resources.

10. The method of claim 9, wherein transmitting information on transmission resources that avoid the specified resource comprises: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

11. The method of claim 9,

a resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH;

the physical control format indicates the resources corresponding to the PCFICH;

resources corresponding to a physical downlink control channel PDCCH;

and resources corresponding to the downlink demodulation reference signal DMRS.

12. The method of claim 9,

resources corresponding to an uplink demodulation reference signal (DMRS);

and on the SRS subframe of the special measurement reference signal of the cell, the resource corresponding to the SRS bandwidth.

13. The method of claim 11,

transmitting a frequency domain range of the information;

and the base station eNB controls the frequency domain range corresponding to the information notified by the RRC signaling through the downlink control information DCI or the radio resource control.

14. The method of claim 11,

the port information corresponding to the downlink DMRS is preset, or is notified by the eNB through downlink control information DCI or radio resource control RRC signaling or a system information block SIB.

15. The method of claim 12,

and the transmission time interval TTI for transmitting the uplink information consists of continuous N symbols except the specified resource, wherein N is a positive integer.

16. An information transmission method applied to a terminal UE is characterized by comprising the following steps:

acquiring the position and/or pattern of the first resource according to the notification of the base station eNB;

transmit information avoiding the first resource.

17. The method of claim 16, wherein avoiding the first resource from transmitting information comprises: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.

18. An information transmission apparatus, comprising:

a determining module, configured to determine a location and/or a pattern of a transmission resource according to a preset manner or a manner notified by a base station eNB;

19. The apparatus of claim 18,

20. The apparatus of claim 19, wherein the designating the data to be transmitted avoiding the transmission resource comprises: and puncturing the designated data on the transmission resources, or performing rate matching on resources except the transmission resources by the designated data.

21. The apparatus of claim 18,

the transmission resource is one of the following in the frequency domain:

one or more continuous or discontinuous physical resource blocks, PRBs;

mixing the above two.

22. The apparatus of claim 21,

23. The apparatus of claim 18 or 21, wherein the determining means is configured to: determining a location and/or pattern of the transmission resources based on at least one of a cell identity, a transmission time interval, TTI, at which the information is transmitted, and a transmission mode.

24. The apparatus of claim 18,

25. The apparatus of claim 18,

26. The apparatus of claim 18,

the transmission resources avoid designated resources.

27. The apparatus of claim 26, wherein the first transmission module enables transmission of information on transmission resources that avoid the specified resource by: and perforating the information on the specified resources, or performing rate matching on the information on resources except the specified resources.

28. The apparatus of claim 26,

resources corresponding to a physical downlink control channel PDCCH;

and resources corresponding to the downlink demodulation reference signal DMRS.

29. The apparatus of claim 26,

resources corresponding to an uplink demodulation reference signal (DMRS);

30. The apparatus of claim 28,

transmitting a frequency domain range of the information;

31. The apparatus of claim 28,

32. The apparatus of claim 29,

33. An information transmission apparatus applied to a terminal UE, comprising:

34. The apparatus of claim 33, wherein the second transmission module avoids the first resource to transmit information by: and perforating the information on the first resource, or performing rate matching on the information on resources except the first resource.