WO2014183472A1

WO2014183472A1 - Transmission method and device of ephich

Info

Publication number: WO2014183472A1
Application number: PCT/CN2014/000492
Authority: WO
Inventors: 弓宇宏; 孙云锋; 郭森宝; 黄宗伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-05-17
Filing date: 2014-05-12
Publication date: 2014-11-20
Also published as: CN104168092B; CN104168092A

Abstract

A transmission method and device of an enhanced Physical Hybrid ARQ Indicator Channel (ePHICH). The method is applied to a network side, comprising: configuring one ePHICH time frequency resource group in ePHICH transmission candidate time frequency resources and/or orthogonal sequence information and indicating the configured resources/information to a terminal, the ePHICH transmission candidate time frequency resources comprising one or more ePHICH time frequency resource groups, and each ePHICH time frequency resource group comprising one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource being multiplexed by one orthogonal sequence and mapped in the corresponding ePHICH time frequency resource group; and different ePHICH transmission candidate resources in the same ePHICH time frequency resource group using orthogonal sequences that are orthogonal to each other. A network side device comprises a configuration module and an indication module. The embodiments of the present invention can improve the capacity in transmission of downlink HARQ information, and enhance anti-interference performance.

Description

Method and device for transmitting enhanced physical hybrid automatic repeat request indication channel

Technical field

The present invention relates to the field of communications, and in particular to a method and apparatus for transmitting a Enhanced Physical Hybrid ARQ Indicator Channel (abbreviated as ePHICH).

Background technique

The Long Term Evolution (LTE) system is an important project of the 3rd Generation Partnership Project (3GPP). When the LTE system uses a conventional Cyclic Prefix (CP), one slot contains 7 lengths of uplink/downlink symbols; when the LTE system uses an extended CP, one slot contains 6 lengths/ Downstream symbol.

The following physical channels are defined in the LTE system:

Physical Broadcast Channel (PBCH for short): The information carried by the channel includes: a frame number of the system, a downlink bandwidth of the system, a period of the physical hybrid retransmission channel, and a channel for determining a physical hybrid automatic repeat request indication channel. (Physical Hybrid ARQ Indicator Channel, abbreviated as PHICH) The parameter of the number of channel groups N _g e {1/6, 1/2, 1, 2};

Physical Multicast Channel (PMCH): It is mainly used to support the Multicast Broadcast over Single Frequency Network (MBSFN) service, and broadcast multimedia time-frequency information to multiple users. PMCH can only be transmitted in MBSFN subframes and MBSFN areas;

Physical Downlink Shared Channel (PDSCH): used to carry downlink transmission data; Physical Downlink Control Channel (PDCCH): used to carry uplink and downlink scheduling information, and uplink power control information. The PDCCHs in LTE R8, R9, and R10 are mainly distributed in the first 1, 2, 3, or 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols of a subframe. The cloth needs to be configured according to the number of ports of different subframe types and common reference signals (Common Reference Signal or Cell-specific Reference Signal, CRS for short). As shown in Table 1, the number of downlink resource blocks configured according to the number of different subframe types and the number of ports of the CRS ( ) is greater than 10 and the number of OFDM symbols occupied by the PDCCH not greater than 10;

Number of OFDM symbols occupied by the PDCCH

Physical Control Format Indicator Channel (PCFICH for short): The information of the bearer is used to indicate the number of OFDM symbols that transmit the PDCCH in one subframe, and is transmitted on the first OFDM symbol of the subframe. The location is determined by the system downlink bandwidth and the cell identity (ID, referred to as ID); The number of the PHICH and the time-frequency position may be determined by a system message and a cell ID in a Physical Broadcast Channel (PBCH) of the downlink carrier where the PHICH is located; A Physical Uplink Shared Channel (PUSCH) is used to carry uplink transmission data.

The transmission of the PHICH channel of the LTE physical layer is organized in the form of a PHICH group, and multiple PHICH channels in one PHICH group occupy the same time-frequency domain physical resources, and the multiplexing mode of the orthogonal spreading sequence is used. In the case of the Normal Cyclic Prefix (Normal CP), the spread spectrum factor is 4 combined with I/Q (In-phase/Quadrature) two-way BPSK (Binary Phase Shift Keying). Phase shift keying) Modulation multiplexing mode, one PHICH group includes 12 modulation symbols, occupies 3 resource element groups (Resource Element Group, referred to as REG), and multiplexes 8 PHICH channels. In the Extended Cyclic Prefix (Extended Cyclic Prefix), for the wireless channel with strong frequency selectivity, the spreading factor is 2 combined with the I/Q two-way BPSK modulation multiplexing method, one PHICH group There are 6 modulation symbols, and 4 PHICH channels are multiplexed. At this time, 2 PHICH groups jointly occupy 3 REG physical resources.

In the frequency domain, the three REGs corresponding to one PHICH group use a distributed mapping method to obtain diversity gain. In terms of time, PHICH duration has both regular and extended resource mapping methods. In the normal mode, the PHICH is mapped on the first OFDM symbol of the subframe; and when the length of the Physical Downlink Control Channel (PDCCH) is 3 (or the MBSFN subframe or time of the hybrid carrier) In the special sub-frame of the Time Division Duplex (TDD), when the PDCCH length is 2, the PHICH can be configured in an extended manner. At this time, the PHICH will be distributed on multiple OFDM symbols occupied by the PDCCH.

In LTE, the measurement and demodulation of pilots are performed using the Reference Reference Signals (CRS), that is, all users use CRS for channel estimation. When using this CRS, the transmitting end needs to additionally notify the specific preprocessing method used by the data transmitted by the receiving end, and the overhead of the pilot is large. In addition, in Multi-user Multi-input Multi-output (MU-MIMO), since multiple terminals use the same CRS, pilot orthogonality cannot be achieved, and therefore interference cannot be estimated. In LTE-A, in order to reduce the pilot overhead, two types of reference signals are respectively defined: a Demodulation Reference Signal (DMRS) and a Channel State Information Reference Signal (CSI-referred to as CSI-). RS ) , where DMRS is used for demodulation of the PDSCH. For channel status The CSI-RS measured by the Channel State Information (CSI) is mainly used for the Channel Quality Indicator (CQI) and the precoding matrix indication.

(Precoding Matrix Indicator, abbreviated as PMI), Rank Indicator (referred to as RI) and other information. The CSI-RS also includes a special type of CSI-RS signal called Zero Power Channel State Information Reference Signal (ZP-CSI-RS), which is determined to be used for ZP-CSI. - no reference signal sequence or data is sent on the resources of the RS, otherwise it is called a non-zero power channel state information reference signal

(Non-Zero Power Channel State Information Reference Signal, abbreviated as NZP-CSI-RS) signal. The role of ZP-CSI-RS is mainly to more accurately measure neighbor interference.

FIG. 1 is a schematic diagram of a physical resource block (RB) of an LTE system. As shown in FIG. 1, one resource element (RE element) is one subcarrier in one OFDM symbol, and one downlink RB is composed of 12 consecutive subcarriers and 7 consecutive (expanded cyclic prefix is 6) ) OFDM symbol composition. A resource block is 180 kHz in the frequency domain and is the length of time of one slot in the time domain. When resource allocation is performed, two resource blocks (also called physical resource block pairs) on one subframe (corresponding to two time slots) are allocated as a basic unit. 2 is a schematic diagram of physical resource block pairs in an LTE system, and FIG. 2 also shows resource locations of corresponding PDCCHs, CRSs, and DMRSs.

In the LTE-A heterogeneous network, due to the strong interference between different types of base stations, considering the macro base station (Macro base station) interference to the micro base station (Pico), a resource silencing method is proposed to solve different types. The mutual interference problem between base stations, the specific resource silence method can be divided into: a sub-frame based muting method (such as an Almost Blank Subframe (abbreviated as ABS) method) and a resource element based muting method ( For example, the CRS silent method). Existing methods for utilizing resource silencing to solve mutual interference problems between different types of base stations not only increase the waste of resources, but also impose great limitations on scheduling, especially when considering the ABS configuration of the Macro eNodeB. If there are many Pico distributions, the Macro eNodeB configures more ABSs, which has a greater impact on the Macro eNodeB, increasing the scheduling delay while increasing the waste of resources. Moreover, although the control channel can be reduced under the ABS Controlling the interference of channel data resources, but it cannot solve the interference problem of CRS resources and data resources. The method of silent CRS cannot solve the interference between data resources. In addition, the backward compatibility of the method is not good, increase At the same time as the access delay, more standardization efforts may be required.

In the LTE R11 phase, more users may be introduced to transmit on the MBSFN subframe, which will result in insufficient capacity of the downlink control channel that the MBSFN can configure for 2 OFDM symbols, in order to ensure the back of the R8/R9/R10 users. To compatibility, a new resource for transmission control information needs to be opened on the PDSCH resource, and a Coordinated Multiple Point Transmission and Reception (CoMP) technology is introduced in the R1 phase. This technology can pass the air separation. The solution solves the interference problem between different types of cells, and saves resource overhead, avoids waste of resources caused by silence, and reduces restrictions on scheduling. However, according to the traditional time domain control channel, it is impossible to solve this problem by means of space division.

In the LTE R11 phase, the PDCCH is enhanced, that is, the enhanced physical downlink control channel (ePDCCH) is transmitted by dividing a part of the resources in the original PDSCH region, so that the capacity of the PDCCH and the simultaneous scheduling can be improved. The number of user equipments, where the ePDCCH is composed of an enhanced control channel element (eCCE), and each eCCE is composed of a plurality of enhanced resource element groups (eREGs). The composition of the physical resource block is allocated to the 16 eREGs. For example, the eREG division in each PB (Pyhsical Resource Block) pair in the normal CP is as shown in FIG. 3 .

In the LTE R12, the traditional downlink carrier control channel region is excluded due to the introduction of the new carrier type (NCT) and the small cell (small cell), and the physical downlink control signaling is transmitted based on the ePDCCH. This leads to the inability of the relevant PHICH design to be applied to the new frame structure. In addition, in the Low cost MTC, the small bandwidth receiving technology needs to be supported. However, since the traditional time domain downlink control channel method discretely distributes the control channel information over the full bandwidth, small bandwidth reception cannot be well supported.

Therefore, for the capacity problem, the interference problem, and the problems that cannot be applied in the NCT and Low cost MTC scenarios, the enhanced physical downlink HARQ indicator channel needs to be considered. At present, no effective solution has been proposed for the design problem of the enhanced physical downlink HARQ indicator channel. Summary of the invention

It is an object of the present invention to provide a method and apparatus for transmitting ePHICH to overcome the capacity problems, interference problems, and unsuitable problems in the NCT and Low cost MTC scenarios.

To solve the above problem, the present invention provides an enhanced physical hybrid retransmission request indication channel.

The (ePHICH) transmission method is applied to the network side, and includes: configuring and indicating to the terminal a set of ePHICH time-frequency resources and/or orthogonal sequence information in the ePHICH transmission candidate time-frequency resources;

The ePHICH transmission candidate time-frequency resource includes one or more ePHICH time-frequency resources, and each group of ePHICH time-frequency resources includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed by an orthogonal sequence. Mapping in the corresponding ePHICH time-frequency resource group; orthogonal sequences used by different ePHICH transmission candidate resources in the same group of ePHICH time-frequency resources are orthogonal to each other;

The ePHICH transmission candidate time-frequency resources include: a physical resource block (PRB) resource usable for ePHICH transmission, an enhanced physical control channel element (eCCE) resource, an enhanced resource element group (eREG) resource, and a zero-power channel state indication reference signal ( ZP-CSI-RS) At least one of a resource, non-zero power channel state indication reference signal (NZP-CSI-RS) resource.

Preferably, the method further includes:

The network side pre-passes at least one of signaling for indicating a Physical Hybrid Repeat Request Indication Channel (PHICH) duration, signaling for indicating a PHICH group number related parameter Ng, Ng, and a bitmap. The terminal side indicates the ePHICH transmission candidate time-frequency resource.

Preferably, the PRB resource available for ePHICH transmission is a PRB resource that can be used for enhanced physical downlink control channel (ePDCCH) transmission or can be used for ePDCCH blind detection.

Preferably, only one of the fixed ones of the PRB resources available for ePHICH transmission is eCCE, eREG, ZP-CSI-RS or NZP-CSI-RS resources are available for ePHICH transmission.

Preferably, in each of the PRB resources available for ePHICH transmission, the eREG whose eREG index satisfies w mod = i is preferentially used for ePHICH transmission;

- at least one of them, n

Indicates the eREG index. Then take the value,

The eREG index satisfies the eREG of mod2 = for ePHICH transmission until the demand for the ePHICH resource is satisfied; where Γ is a natural number.

Preferably, in each of the PRB resources available for ePHICH transmission, the eREG index eREG is preferentially used for ePHICH transmission; wherein: ρ' is greater than 1 and less than 16

The integer, _ / is at least one of {Ο, Ι, ., ., ρ' - 1}, "represents an eREG index. Preferably, the network side determines that the demand for the ePHICH resource exceeds

Q'

In the range of 0~Q'-1, starting from the smallest integer smaller than the value of the ·, as the value of ', the eREG satisfying the eREG index is used for ePHICH transmission until the ePHICH is satisfied.

The demand for resources; where, 'is a natural number.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the eREG, and each of the ePHICH time-frequency resources is composed of REs in the eREGs that are peer-to-peer from more than one PRB. .

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the eREG, and each set of ePHICH time-frequency resources is composed of an equivalent eREG.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the eREG, and each set of ePHICH time-frequency resources is composed of one eREG.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is NZP-CSI-based from more than one PRB. RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from an NZP that is in a non-identical position from more than one PRB. CSI-RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources transmits one or more NZP-CSIs in a candidate resource by a single ePHICH. - RS resource composition. Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is ZP-CSI-based from more than one PRB. RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the ZP-CSI-RS resource, and each group of ePHICH time-frequency resources is from a ZP- in a non-identical position from more than one PRB. CSI-RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is transmitted by one e-CHICH to one or more ZP-CSIs in candidate resources. - RS resource composition.

Preferably, the orthogonal sequence is an orthogonal mask sequence, and the orthogonal mask sequence has a length of 2 or 4 or equal to the number of REs included in each PRB of each group of ePHICH time-frequency resources.

Preferably, each of the two groups of ePHICH time-frequency resources is multiplexed with one orthogonal mask sequence 歹 |J, and the length of the orthogonal mask sequence is equal to 2; or

Each of the four groups of ePHICH time-frequency resources is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to 4; or

The REs on each PRB of each group of ePHICH time-frequency resources are multiplexed with an orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to the REs included in each PRB of each group of ePHICH time-frequency resources. number.

Preferably, the network side indicates the ePHICH time-frequency resource group information and/or orthogonal sequence information to the terminal by using at least one of the following manners:

The high-level signaling, the corresponding physical uplink data sharing channel (PUSCH) lowest PRB index, and the 3-layer control signaling used to indicate the PUSCH demodulation reference signal (DMRS) cyclic shift value in the physical layer downlink control signaling At least one; or,

At least one of high-level 3-bit signaling for indicating a corresponding PUSCH DMRS, the PUSCH lowest PRB index, and 3-bit control signaling for indicating a PUSCH DMRS cyclic shift value in physical layer downlink control signaling.

In addition, a method for transmitting an enhanced physical hybrid retransmission request indication channel (ePHICH) is applied to the terminal side, and includes: the receiving network side is configured to be the terminal in the ePHICH transmission candidate time-frequency resource. Setting a set of ePHICH time-frequency resources and/or orthogonal sequence indication information, and detecting and/or receiving an ePHICH according to the indication information;

Each ePHICH time-frequency resource includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed by one orthogonal sequence and mapped in a corresponding ePHICH time-frequency resource group; and the same group of ePHICH time-frequency resources The orthogonal sequences used by different ePHICH transmission candidate resources are orthogonal to each other;

The ePHICH transmission candidate time-frequency resources include a physical resource block (PRB) resource usable for ePHICH transmission, an enhanced physical control channel element (eCCE) resource, an enhanced resource element group (eREG) resource, and a zero-power channel state indication reference signal (ZP). - CSI-RS) Resource, at least one of a non-zero power channel state indication reference signal (NZP-CSI-RS) resource.

Preferably, the method further includes:

The terminal side receiving network side passes at least one of signaling for indicating PHICH duration, signaling for indicating PHICH group number related parameter Ng, parameter for indicating PHICH group number correlation, and bitmap (bitmap) The ePHICH transmission candidate time-frequency resource is indicated to the terminal side.

Preferably, the terminal side determines a PRB resource that can be used for ePHICH transmission by receiving signaling of a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection by the receiving network side; wherein the PRB resource that can be used for ePHICH transmission It is a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection.

Preferably, in each of the ePHICH transmission candidate resources, an eREG whose eREG index satisfies wm ₀ d = is preferentially used for ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, and w represents an eREG index.

Preferably, if the terminal side determines that the demand for the ePHICH resource exceeds, the terminal side starts from a minimum integer smaller than the value of the z in the range of 0 -1, as the value of the Γ,

Q"

The eREG index satisfies the mod 2 = eREG for ePHICH transmission until the demand for the ePHICH resource is satisfied; where Γ is a natural number. n Preferably, in each of the ePHICH transmission candidate resources, the eREG index is satisfied, ^ eREG is preferentially used for ePHICH transmission; wherein: ρ' is an integer greater than 1 and less than 16, _/e [o,l,.. ., g-1], "represents the eREG index. Preferably, if the terminal side determines that the demand for the ePHICH resource exceeds, then

L Q'"

In the range of 0~Q'-1, starting from the smallest integer smaller than the value of ?, as the value of ', will be n

The eREG index satisfies the eREG for ePHICH transmission until the ePHICH is satisfied

Q

The demand for resources; where, 'is a natural number.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources transmits one or more NZP-CSIs in a candidate resource by a single ePHICH. - RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is ZP-CSI-based from more than one PRB. RS resource composition.

Preferably, the ePHICH transmission candidate time-frequency resource is divided into three parts based on ZP-CSI-RS resources. For more than one group, each group of ePHICH time-frequency resources is composed of ZP-CSI-RS resources from non-identical locations on more than one PRB.

Preferably, the orthogonal sequence is an orthogonal mask sequence, and the length of the orthogonal mask sequence is 2 or 4 or 8 or the number of REs included in each ePHICH time-frequency resource group on a single PRB.

Preferably, each of the two REs in the ePHICH time-frequency resource group is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to 2; or

Each of the four REs in the ePHICH time-frequency resource group is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to 4; or

Each RE of the ePHICH time-frequency resource group is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to the ePHICH time-frequency resource group distributed on the PRB. The number of REs.

Preferably, the terminal side determines an ePHICH time-frequency resource group and/or orthogonal sequence information allocated to it by the network side in one of the following manners:

Receiving at least one of high-level signaling, a corresponding PUSCH lowest PRB index, and 3-bit control signaling for indicating the PUSCH DMRS cyclic shift value in the physical layer downlink control signaling; or

And receiving at least one of high-level 3-bit signaling for indicating a corresponding PUSCH DMRS, the PUSCH lowest PRB index, and 3-bit control signaling for indicating a PUSCH DMRS cyclic shift value in physical layer downlink control signaling.

Correspondingly, the present invention provides a network side device, including:

The configuration module is configured to: configure a set of ePHICH time-frequency resources and/or orthogonal sequence information in the enhanced physical hybrid retransmission request indication channel (ePHICH) transmission candidate time-frequency resource to the terminal; the indication module is set to: The set of ePHICH time-frequency resources and/or orthogonal sequence information configured by the configuration module for the terminal is indicated to the terminal;

The ePHICH transmission candidate time-frequency resource includes a group of ePHICH time and frequency resources. Source, each group of ePHICH time-frequency resources includes more than one ePHICH transmission candidate resource; each ePHICH transmission candidate resource is multiplexed by one orthogonal sequence and mapped in the corresponding ePHICH time-frequency resource group; in the same group of ePHICH time-frequency resources The orthogonal sequences used by different ePHICH transmission candidate resources are orthogonal to each other;

Preferably, the indication module is further configured to: pass signaling for indicating a Physical Hybrid Repeat Request Indication Channel (PHICH) duration, signaling, a Ng and a bitmap for indicating a PHICH group number related parameter Ng ( At least one of the bitmaps indicates the ePHICH transmission candidate time-frequency resource to the terminal side.

Preferably, the configuration module is configured to: in each of the PRB resources available for ePHICH transmission, the eREG index satisfies the "mod = eREG priority with ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, At least one of ο, ι, n

Represents an eREG index.

Preferably, the configuration module is further configured to: if it is determined that the demand for the ePHICH resource exceeds, starting from a minimum integer smaller than the value of the ,·

The value of Γ, the eREG index satisfies the mod 2 = eREG for ePHICH transmission until the demand for the ePHICH resource is satisfied; where z ' is a natural number.

Preferably, the configuration module is configured to: each of the PRBs available for ePHICH transmission

n

In the resource, the eREG with the eREG index satisfying = j is preferentially used for the ePHICH transmission;

— β'”

ρ' is an integer greater than 1 and less than 16, and is at least one of {0, 1, ..., 2' - 1}, "represents an eREG index. Preferably, the configuration module is further configured to: if it is determined that the demand for the ePHICH resource exceeds, in a range of 0~Q'-1, starting from a minimum integer smaller than the value of the

n

The value of the eREG index satisfies the eREG for the ePHICH transmission until it is satisfied

Q

The demand for ePHICH resources; where ' is a natural number.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an eREG, where each group of ePHICH time-frequency resources are peer-to-peer from more than one PRB The RE is located in the eREG.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each set of ePHICH time-frequency resources is composed of an equivalent eREG.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each set of ePHICH time-frequency resources is composed of one eREG.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource resources into one or more groups based on the NZP-CSI-RS, where each group of ePHICH time-frequency resources is from more than one PRB Position-equal NZP-CSI-RS resource composition.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB The NZP-CSI-RS resource is in a non-identical position.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource. One or more NZP-CSI-RS resources within.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB Positionally equivalent ZP-CSI-RS resources.

Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB The ZP-CSI-RS resources are in a non-identical position. Preferably, the configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each set of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource One or more ZP-CSI-RS resources within.

Preferably, the indication module is configured to: indicate, by the at least one of the following, the set of ePHICH time-frequency resources and/or orthogonal sequence information configured by the configuration module for the terminal to the terminal:

Correspondingly, the present invention also provides a terminal, including:

The receiving module is configured to: receive, by the receiving network, a set of ePHICH time-frequency resources and/or orthogonal sequence indication information configured for the terminal in the enhanced physical hybrid retransmission request indication channel (ePHICH) transmission candidate time-frequency resource;

The processing device is configured to: detect and/or receive an ePHICH according to the indication information received by the receiving module;

Wherein each group of ePHICH time-frequency resources includes more than one ePHICH transmission candidate resource; Each ePHICH transmission candidate resource is multiplexed by one orthogonal sequence and mapped in a corresponding ePHICH time-frequency resource group; orthogonal sequences used by different ePHICH transmission candidate resources in the same group of ePHICH time-frequency resource groups are orthogonal to each other;

Preferably, the receiving module is further configured to: receive, by the network side, signaling for indicating PHICH duration, signaling for indicating PHICH group number related parameter Ng, parameter for indicating PHICH group number correlation, bit At least one of the bitmaps transmits the candidate time-frequency resource to the ePHICH indicated by the terminal.

Preferably, the receiving module is further configured to: determine a PRB resource that can be used for ePHICH transmission by receiving signaling that is used by the network side to indicate a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection; wherein the ePRICH is applicable to ePHICH The transmitted PRB resource is a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection.

Preferably, the processing module is configured to: in each of the ePHICH transmission candidate resources, use an eREG with an eREG index satisfying wm ₀ dg = for an ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, n Indicates the eREG index

The value, the eREG index satisfies the mod 2 = eREG for the ePHICH transmission until the demand for the ePHICH resource is satisfied; where Γ is a natural number.

Preferably, the processing module is configured to: at each of said candidate ePHICH transmission resource, to satisfy the eREG eREG priority index for transmission ePHICH _c

Where: ρ' is an integer greater than 1 and less than 16, · Ε [0,ΐ,...,β' - 1] , "is an eREG index Preferably, the processing module is configured to: if it is determined that the demand for the ePHICH resource exceeds, in a range of 0~Q'-1, starting from a minimum integer smaller than the value of the

n

Q

The demand for ePHICH resources; where ' is a natural number.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an eREG, where each group of ePHICH time-frequency resources is an eREG that is peer-to-peer from more than one PRB. The inner position is equivalent to the RE.

Preferably ,

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resources into more than one group based on the eREG, where each set of ePHICH time-frequency resources is composed of an equivalent eREG.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resources into one or more groups based on the eREG, where each set of ePHICH time-frequency resources is composed of one eREG.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resources into one or more groups based on NZP-CSI-RS resources, where each group of ePHICH time-frequency resources is from more than one location on the PRB Peer-to-peer NZP-CSI-RS resource composition.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB The NZP-CSI-RS resource is in a non-identical location.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups according to an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource One or more NZP-CSI-RS resources are formed.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one location on the PRB Peer-to-peer ZP-CSI-RS resource composition.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is derived from More than one ZP-CSI-RS resource in a non-identical position on the PRB.

Preferably, the processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource One or more ZP-CSI-RS resources are constructed.

Preferably, the receiving module is configured to: determine, by one of the following methods, an ePHICH time-frequency resource group and/or orthogonal sequence information allocated to the network side:

At least one of three-bit control signaling for indicating the PUSCH DMRS cyclic shift value in the higher layer signaling, the corresponding PUSCH lowest PRB index, and the physical layer downlink control signaling; or

For at least one of receiving high-level 3-bit signaling for indicating a corresponding PUSCH DMRS, the PUSCH lowest PRB index, and 3-bit control signaling for indicating a PUSCH DMRS cyclic shift value in physical layer downlink control signaling One.

After the embodiment of the present invention is used, the downlink HARQ information transmission capacity can be improved, the anti-interference performance of the downlink HARQ information transmission can be enhanced, and the downlink HARQ information can be effectively transmitted in the NCT and Low cost MTC scenarios. BRIEF abstract

1 is a schematic diagram of a physical resource block in the related art; 2 is a schematic diagram of a physical resource block pair in the related art;

3 is a schematic diagram of eREG partitioning of physical resource block pairs in a conventional CP in the related art; FIG. 4 (a) and FIG. 4 (b) are schematic diagrams of ZP-CSI-RS resource structures in the case of using a conventional CP in the related art;

Figure 5 (a) and Figure 5 (b) are schematic diagrams of ZP-CSI-RS resources in the case of using the extended CP in the related art;

6 is a schematic diagram of ePHICH resources in application examples 2 to 5 of the present invention;

7(a) to 7(d) are schematic diagrams showing the division of the ePHICH time-frequency resource group in the second application example of the present invention;

8(a) to 8(p) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in the application example 2 of the present invention;

9(a) to 9(d) are schematic illustrations of the division of the ePHICH time-frequency resource group in the third application example of the present invention;

10(a) to 10(d) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in the application example 3 of the present invention;

11(a)-11(d) are schematic diagrams showing the division of the ePHICH time-frequency resource group in the application example 4 of the present invention;

12(a) to 12(p) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in the application example 4 of the present invention;

13(a) to 13(d) are schematic diagrams showing the division of the ePHICH time-frequency resource group in the fifth application example of the present invention;

14(a) to 14(p) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in Application Example 5 of the present invention;

15(a) and 15(b) are schematic diagrams showing the division of the ePHICH time-frequency resource group in the seventh embodiment of the present invention;

16(a) to 16(p) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in Embodiment 7 of the present invention; 17(a) and 17(b) are schematic diagrams showing the division of the ePHICH time-frequency resource group in the eighth embodiment of the present invention;

18( a ) to 18 ( p ) are schematic diagrams showing multiplexing and mapping of multiple orthogonal mask sequences by multiple users in Embodiment 8 of the present invention;

FIG. 19 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

FIG. 20 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

In this embodiment, a method for transmitting a enhanced physical hybrid retransmission request indication channel includes: configuring, by the network side, a set of ePHICH time-frequency resources and/or orthogonal sequences in the ePHICH transmission candidate time-frequency resources and indicating to the terminal The terminal receives the corresponding ePHICH according to the indication.

The ePHICH transmission candidate time-frequency resource includes one or more ePHICH time-frequency resources, and each group of ePHICH time-frequency resources includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed and mapped by an orthogonal sequence. In the corresponding ePHICH time-frequency resource group, orthogonal sequences used by different ePHICH transmission candidate resources in the same group of ePHICH time-frequency resources are orthogonal to each other;

It should be noted that the ePHICH transmission candidate time-frequency resource includes: at least one of a PRB resource, an eCCE resource, an eREG resource, a ZP-CSI-RS resource, and an NZP-CSI-RS resource that can be used for ePHICH transmission.

The eCCE and the eREG are the same as the existing eCCE and the eREG. The existing eCCE and eREG division, mapping mode, indexing mode, and the like can be applied in this embodiment, but are not limited to being configured only. Can be used in PRBs for ePDCCH transmission or PRBs for ePDCCH blind detection.

Specifically, the method includes the following steps:

Step 1: The network side determines time-frequency resources (ie, ePHICH transmission candidate time-frequency resources) that can be used for ePHICH transmission, and specifically includes at least one of the following situations: Step 1: The network side determines a PRB resource (hereinafter referred to as an ePHICH PRB resource) that can be used for ePHICH transmission, and specifically includes at least one of the following methods:

method one:

The network side determines the PRB resources that can be used for the ePHICH transmission in the downlink system bandwidth, and notifies the ePHICH PRB resource to the terminal side by reusing the existing signaling or parameters, for example, by using signaling in the prior art for indicating the PHICH duration. And signaling for indicating a parameter N _g related to the number of PHICH groups and any one or any combination of parameters Ng for indicating the number of PHICH groups.

Method 2:

The network side determines the PRB resources available for ePHICH transmission in the downlink system bandwidth, and indicates to the terminal side which PRBs in the downlink system bandwidth resources are available for ePHICH transmission in the form of a bitmap. The size of the bitmap can be configured according to the maximum downlink system bandwidth. For example, the maximum downlink system bandwidth in LTE is 20M, correspondingly 110 PRBs. The size of the bitmap is set to 110 bits, which are used to indicate the 110 PRBs. Whether it can be used for ePHICH transmission. If a PRB can be used to transmit the ePHICH, the value of the bit corresponding to the PRB is 1 in the bitmap, otherwise 0 (of course, in a specific implementation, when a PRB can be used to transmit the ePHICH, In the bitmap, the value of the bit corresponding to the PRB is 0, otherwise it is 1, as long as the network side and the terminal side unify whether the PRB indicated by the specific bit value can be used to transmit the ePHICH. The size of the bitmap can also be configured according to the actual system downlink bandwidth. For example, if the actual downlink system bandwidth is 10 PRBs, it can be indicated by a bitmap with a size of 10 bits, where the bit value in the bitmap is 1 The PRB can be used to transmit the ePHICH, and vice versa is not available for ePHICH transmission. For example, 0001000110 indicates that the 4th, 8th, and 9th PRBs in the downlink system bandwidth can be used for ePHICH transmission.

Method three:

The network side determines the PRB resources that can be used for the ePHICH transmission in the downlink system bandwidth, and indicates to the terminal side, by system signaling or higher layer signaling, the number of time-frequency resources of the ePHICH transmission candidate in the downlink system bandwidth resource, N _PRB , and then extracts the combined combination. The mode determines that ^^ PRBs can be used for ePHICH transmission.

Assuming that the number of PRBs available for ePHICH transmission is N _PRB by the above indication, the network side indicates the corresponding PRB location index β" ^-1 by using the combined index r to the terminal side, where The downlink system bandwidth size (measured in PRB).

Method 4:

All PRB resources that can be used to transmit the ePDCCH can be used for ePHICH transmission, so the network side does not need to use additional signaling to notify the ePHICH transmission candidate time-frequency resources.

Preferably, some of the PRB resources available for transmitting the ePDCCH are available for ePHICH transmission. In this case, it is necessary to inform the terminal which of these PRB resources (e.g., which eCCE or eREG, etc.) are available for ePHICH transmission.

Method 5:

When the full-band PRB resources of the entire downlink system are available for ePHICH transmission, the entire downlink system full bandwidth is divided into Np groups based on the PRB, and the terminal side uses one of the PRBs to transmit its ePHICH, and multiple users share a group of PRB resources. The ePHICH time-frequency resource group can be further divided into each group of PRB resources, as described in step 2 below.

The network side can notify the terminal side which PRB group the ePHICH transmission candidate resource belongs to by the higher layer signaling and/or physical layer signaling.

Step 2: Determine the eCCE resource that can be used to transmit the ePHICH in the ePHICH PRB resource, including at least one of the following methods:

method one:

The network side determines the eCCE resource in the ePHICH PRB resource that can be used to transmit the ePHICH, and notifies the determined eCCE resource to the terminal side through the high layer signaling or reusing the existing signaling or parameters in the prior art, for example, by using the prior art. Signaling for indicating PHICH duration, signaling for indicating the number of PHICH group related parameters, and for indicating Any one or any combination of the parameters Ng related to the number of PHICH groups.

Preferably, the network side simultaneously indicates the eCCE resource occupied by the ePHICH to the terminal side by using parameters or signaling indicating the PHICH duration in the prior art. The signaling indicating the PHICH duration in the prior art is 1-bit system signaling, which can be used for notification of eCCE resources available for ePHICH transmission in each ePHICH PRB resource, as shown in Table 2:

Table 2 The value of the PHICH duration signaling is available in the ePHICH PRB resource.

Correspondence of eCCE resources transmitted by ePHICH

The remaining eCCE resources may be used to transmit the ePDCCH or the PDSCH, if there are remaining eCCE resources in the ePHICH PRB resource in addition to the eCCE resources available for ePHICH transmission.

Method 2:

Only one or more pre-agreed eCCE resources in each ePHICH PRB resource can be used for ePHICH transmission, and the pre-agreed means that the network side and the terminal side are defaulted or do not need to be notified by the signaling.

Preferably, the one or more pre-agreed eCCE resources are the first eCCE or the first two eCCEs or the last eCCE or the last two eCCEs in each ePHICH PRB resource, or all eCCEs in the ePHICH PRB resource.

In addition to the eCCE resources that can be used for ePHICH transmission, if there are remaining eCCE resources, the remaining eCCE resources can be used to transmit ePDCCH or PDSCH.

Step 3: Determine the eREG resource that can be used to transmit the ePHICH in the ePHICH PRB resource, including at least one of the following methods:

method one: The network side determines the eREG resources that can be used to transmit the ePHICH in all the ePHICH PRB resources, and notifies the determined eREG resources to the terminal side through high layer signaling or reusing existing signaling or parameters in the prior art, for example, by using the prior art. At least one of signaling for indicating PHICH duration, signaling for indicating PHICH group number related parameter Ng, and parameter Ng for indicating PHICH group number correlation to notify the terminal side which eREG resources are available for ePHICH transmission .

Preferably, the network side indicates the eREG resource occupied by the ePHICH to the terminal side through the parameter Ng in the prior art or the signaling used to indicate the Ng. For example, in the prior art, Ng has four values, and the value of the parameter can be used to indicate to the terminal side the eREG resources available for ePHICH transmission in each ePHICH PRB resource, as shown in Table 3.

Correspondence between the value of Table 3^ and eREG resources available for ePHICH transmission

The remaining eREG resources may be used to transmit the ePDCCH or the PDSCH in addition to the eREG resources available for the ePHICH transmission in the ePHICH PRB resource.

Method 2:

Only one or more pre-agreed eREG resources in each ePHICH PRB resource can be used for ePHICH transmission, and the pre-agreed means that the network side and the terminal side are defaulted or do not need to be notified by the signaling.

In addition to the eREG resources available for ePHICH transmission, the remaining eREG resources may be used to transmit ePDCCH or PDSCH. Method three:

In each ePHICH PRB resource, the eREG index w is preferentially selected. The eREG resource of mod2 = is used for ePHICH transmission, where ρ is an integer greater than 1 and less than 16,

16

0, 1, preferably, Q = 1 or 4 or 8. For example, in the case of β=4, the first priority of the eREG resource whose eREG index is {0, 4, 8, 12} is selected for ePHICH transmission, and the second priority occupation eREG index is {1, 5, 9, 13} The eREG resource, the third priority occupies the eREG resource whose eREG index is {2, 6, 10, 14}, and the fourth priority occupies the eREG resource whose eREG index is {3, 7, 11, 15}.

Also preferentially, each meets wm. In the eREG resource of d2 =, the priority of the eREG resource decreases in descending order of the eREG index n. That is, in all eREGs satisfying the condition of wm _O d = 0, the priority of eREG 0 is the highest, followed by eREG Q, followed by eREG 2Q, and so on.

The network side determines the demand for ePHICH resources according to the amount of users, the amount of uplink data, or system parameters, and then configures which eREG resources in each ePHICH PRB resource are available for ePHICH transmission according to the foregoing priority. For example, in the case of β=4, if the network side determines that the ePHICH resource requirement is about one eREG per ePHICH PRB resource, the network side configures each ePHICH PRB resource to have only eREG. 0 can be used for ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 2 eREGs per ePHICH PRB resource, the network side configures each ePHICH transmission candidate resource to have only eREG 0 and eREG 4 can be used for ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 3 eREGs per ePHICH PRB resource, the network side configures each ePHICH PRB resource to have only eREG 0, eREG 4 and eREG 8 can be used for ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 4 eREGs per ePHICH PRB resource, the network side will configure each ePHICH PRB resource to have only one eREG 0, eREG 4, eREG 8 and eREG 12 can be used for ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 5 eREGs per ePHICH PRB resource, the network side will configure each ePHICH P. Among the RB resources, only eREG 0, eREG 4, eREG 8, eREG 12, and eREG 1 can be used for ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 6 eREGs per ePHICH PRB resource is enough. , the network side will configure each ePHICH PRB resource to have only eREG 0, eREG 4, eREG 8, eREG 12, eREG 1 And eREG 5 can be used for ePHICH transmission; and so on.

In addition to the eREG resources that can be used for ePHICH transmission, if there are remaining eREG resources, the remaining eREG resources can be used to transmit ePDCCH or PDSCH.

Manner 4: In the ePHICH PRB resource, the eREG index "eRACE" is preferentially used for ePHICH transmission, where: ρ' is an integer greater than 1 and less than 16, je [0X..., Q' - l] ,

I" means rounding down. Preferably, ρ' = 2 or 4 or 8. For example, in the case of ρ' = 4, the first priority of the eREG resource whose eREG index is {0, 1, 2, 3} is selected for ePHICH transmission, and the second priority occupation eREG index is {4, 5, 6, 7 The eREG resource of the }, the third priority occupies the eREG resource whose eREG index is {8, 9, 10, 11 }, and the fourth priority occupies the eREG resource whose eREG index is {12, 13, 14, 15}.

n

In addition, priority is given to the priority of the eREG resource among all eREG resources that satisfy i.

Q

n

According to the eREG index, the order of decreasing from small to large is reduced. For example, in the satisfaction

Q

In all eREGs, eREG 0 has the highest priority, followed by eREG 1 , followed by eREG

2 (Q>2), and so on.

The network side determines the demand for ePHICH resources according to the amount of users, the amount of uplink data, or system parameters, and then configures which eREG resources in the ePHICH PRB resources are available for ePHICH transmission according to the foregoing priorities. For example, in the case of β=4, if the network side determines that the ePHICH resource requirement is about one eREG in the ePHICH PRB resource, the network side configures that each ePHICH PRB resource has only eREG 0 available. If the network side determines that the ePHICH resource requirement is about 2 eREGs per ePHICH PRB resource, the network side configures each ePHICH PRB resource and only eREG 0 and eREG1 are available. ePHICH transmission; if the network side determines that the ePHICH resource requirement is about 3 eREGs per ePHICH PRB resource, the network side configures each ePHICH PRB resource to have only eREG 0, eREG1, and eREG2 available. If the network side determines that the ePHICH resource requirement is about 4 eREGs per ePHICH PRB resource, the network side configures each ePHICH PRB resource with only eREG 0, eREG1, and eREG2. And eREG3 can be used for ePHICH transmission; if the network side determines the demand for ePHICH resources is about It is sufficient to occupy 5 eREGs in each ePHICH PRB resource. The network side will configure each ePHICH PRB resource to have only eREG 0, eREG1, eREG2, eREG3 and eREG4 for ePHICH transmission; if the network side determines ePHICH resources The requirement is about 6 eREGs per EPHICH PRB resource. The network side will configure each ePHICH PRB resource with only eREG 0, eREG1, eREG2, eREG3, eREG4 and eREG5 for ePHICH transmission. And so on.

Step one, case four, to determine that all ePHICH PRB resources are available for transmission of ePHICH

The ZP-CSI-RS resource includes at least one of the following methods:

method one:

The network side determines a ZP-CSI-RS resource in the ePHICH PRB resource that can be used to transmit the ePHICH, and notifies the determined ZP-CSI-RS resource to the terminal by using high layer signaling, or reusing existing signaling or existing parameters. Side, for example, by using signaling in the prior art for indicating PHICH duration, signaling for indicating PHICH group number related parameter N _g , and any one or any parameter Ng indicating PHICH group number correlation combination.

Method 2:

Only one or more pre-agreed ZP-CSI-RS resources in each ePHICH PRB resource can be used for ePHICH transmission. The pre-agreed means that the network side and the terminal side have default or no signaling notification.

Method three:

In the related art, there are 16 ZP-CSI-RS resources in each PRB, and the ZP-CSI-RS resource index is 0-15. For example, the corresponding resource positions of the conventional CP in the related art are as shown in FIG. 4(a) and FIG. (b), Figure 5 (a) and Figure 5 (b), where each resource location contains 4 REs. Figure 4 (a) is a schematic diagram of the resource structure of a conventional CP in an FDD/TDD scenario; Figure 4 (b) is a schematic diagram of a resource structure of a conventional CP in a TDD scenario; Figure 5 (a) is an FDD/TDD scenario A schematic diagram of the resource structure of the extended CP is used; Figure 4 (b) shows the extended CP in the TDD scenario. Schematic diagram of resource structure, the number in the ZP-CSI-RS resource block indicates the ZP-CSI-RS resource index. In view of this, preferably, the network side can notify the terminal side through the 4-bit high-layer signaling whether which of the ePHICH PRB resources of the ePHICH PRB resource is available for the ePHICH transmission on the terminal side, as shown in Table 4:

Table 4 Correspondence between high-level signaling values and ZP-CSI-RS resource indexes that can be used for ePHICH transmission

Method 4:

In the related art, there are 16 ZP-CSI-RS resources in each PRB, and the ZP-CSI-RS resource index is 0-15. For example, in the prior art, the corresponding resource location in the conventional CP is as shown in FIG. 4(a) and FIG. 4 (b), Figure 5 (a) and Figure 5 (b), where each resource location contains 4 REs. In view of this, preferably, the network side may notify the terminal side by means of a 16-bit bitmap which one or more of the ePHICH PRB resources of the ePHICH PRB resources are available for terminal-side ePHICH transmission. For example: The bitmap is 0000 0010 0010 0000, indicating that the 7th and 11th ZP-CSI-RS resources are available for terminal-side ePHICH transmission.

Step 5: Determine the NZP-CSI-RS resources in the ePHICH PRB resource that can be used to transmit the ePHICH, including at least one of the following methods:

method one:

The network side determines the NZP-CSI-RS resource (1 port or 2 port or 4 port or 8 port) in the ePHICH PRB resource that can be used to transmit the ePHICH, and determines the determined NZP through high layer signaling or reuse of existing signaling or parameters. - CSI-RS resource notification to the terminal side, for example, by existing signaling for indicating PHICH duration, signaling for indicating PHICH group number related parameter Ng, and parameter Ng for indicating PHICH group number correlation Any one or any combination.

Method 2:

Only one or more NZP-CSI-RS resources pre-agreed in each ePHICH PRB resource

(1 port or 2 port or 4 port or 8 port) can be used for ePHICH transmission, which means that the network side and the terminal side are default or do not need to be signaled.

Method three:

In the related art, there are 32 NZP-CSI-RS resources (1 port or 2 ports) in each PRB, and it is assumed that the NZP-CSI-RS resource index is 0~31, and each resource location includes 2 REs.

In view of this, preferably, the network side can notify the terminal side through the 5-bit high-layer signaling whether which NZP-CSI-RS resource of its ePHICH PRB resource is available for the terminal-side ePHICH transmission.

Method 4:

In view of this, preferably, the network side may notify the terminal side of which one or more NZP-CSI-RS resources of its ePHICH PRB resources are available for terminal-side ePHICH transmission by means of a 32-bit bitmap. For example: High-level signaling is 0000 0010 0010 0000 0000 0000 0000 0000 means 7th And the eleventh NZP-CSI-RS resource can be used for ePHICH transmission on the terminal side.

Step 2: The time-frequency resources (ie, ePHICH transmission candidate time-frequency resources) that are determined to be used in the ePHICH transmission determined in the first step are divided into N groups, where N is a positive integer.

Specifically, the ePHICH transmission candidate time-frequency resources in the downlink system bandwidth determined in step 1 are divided into N groups; or, in order to achieve equal division, the ePHICH transmission candidate time-frequency resources in the downlink system bandwidth determined in step one are The part is divided into N groups. For example, considering the different eREGs may be different in different situations, the eREG determined to be the ePHICH transmission candidate resource may also take only a fixed number of REs as valid ePHICH transmission candidate resources.

When all or part of the ePHICH transmission candidate time-frequency resources are divided into N groups, the division may be performed in units of eCCEs or in units of eREGs or in units of arbitrary W REs; where W is a positive integer Preferably, W is equal to 8 or 16, and the physical layer is uplinked by 4 times for each ACK/NACK original bit.

In the centralized ePHCIH transmission mode, each group of ePHICH time-frequency resources is composed of RE resources on the same PRB. In the distributed ePHICH transmission mode, each group of ePHICH time-frequency resources is composed of RE resources from multiple PRBs. At this time, in order to obtain a maximized diversity gain, it is preferable to discretize these PRBs and REs in the frequency domain and/or the time domain as much as possible.

Specifically, step two includes at least one of the following methods:

method one:

The ePHICH transmission candidate time-frequency resources are divided into one or more groups based on eREG. Preferably, the REs within the eREGs that are peer-to-peer in position on the plurality of PRBs constitute a set of ePHICH time-frequency resources.

E.g:

The pl~p2 REs in the eREG ml in the PRB nl, the pl~p2 REs in the eREG ml in the PRB n2, and the pl~p2 REs in the eREG ml in the PRB nn constitute a set of ePHICH time-frequency resources;

The p2+1~p3 REs in eREG ml in PRB nl, the p2+1~p3 REs in eREG ml in PRB n2, and the p2+l~p3 RE constructs in eREG ml in PRB nn Form a set of ePHICH time-frequency resources;

The px+l~pp REs in eREG ml in PRB nl, the px+l~pp REs in eREG ml in PRB n2, and the px+l~pp REs in eREG ml in PRB nn constitute one Group ePHICH time-frequency resources;

The pl~p2 REs in the eREG m2 in the PRB nl, the pl~p2 REs in the eREG m2 in the PRB n2, and the pl~p2 REs in the eREG m2 in the PRB nn constitute a set of ePHICH time-frequency resources;

The p2+1~p3 REs in eREG m2 in PRB nl, the p2+1~p3 REs in eREG m2 in PRB n2, and the p2+l~p3 REs in eREG m2 in PRB nn constitute one Group ePHICH time-frequency resources;

The px+l~pp RE in eREG ml in PRB nl, the px+l~pp RE in eREG ml in PRB n2, and the px+l~pp RE in eREG ml in PRB nn constitute one Group ePHICH time-frequency resources;

And so on;

The pl~p2 REs in the eREG mm in the PRB nl, the pl~p2 REs in the eREG mm in the PRB n2, and the pl~p2 REs in the eREG mm in the PRB nn constitute a set of ePHICH time-frequency resources;

The p2+1~p3 REs in eREG mm in PRB nl, the p2+1~p3 REs in eREG mm in PRB n2, and the p2+l~p3 REs in eREG mm in PRB nn constitute one Group ePHICH time-frequency resources;

The px+l~pp REs in eREG mm in PRB nl, the px+l~pp REs in eREG mm in PRB n2, and the px+l~pp REs in eREG mm in PRB nn constitute one Group ePHICH time-frequency resources.

Other PRB partitioning methods that can be used for ePHICH transmission are analogous. Where nl, n2 nn denote PRB index, 1 η2 ...... < nn, all integers greater than or equal to 0; ml, m2 mm denotes the eREG index in the PRB, ml m2 ...

< mm, are integers greater than or equal to 0; pl, p2 represent RE logical indexes in eREG, and pl p2 ... pp are integers greater than or equal to 0.

Method 2:

The ePHICH transmission candidate time-frequency resource is divided into one or more groups in units of eREG. Preferably, an RE on multiple PRBs constitutes an equivalent eREG, and the equivalent eREG constitutes an ePHICH time-frequency resource group. The equivalent eREG means that all REs constituting the eREG have the same index position in the PRB as the prior art eREG, but these REs come from a plurality of different PRBs.

E.g:

In the PRB nl, the pl~p2 REs in the eREG ml, the p2+1~p3 REs in the eREG ml in the PRB n2, and the px+l~pp REs in the eREG ml in the PRB nn constitute a group of ePHICH Time-frequency resources;

In the PRB nl, the pl~p2 REs in the eREG m2, the p2+1~p3 REs in the eREG m2 in the PRB n2, and the px+l~pp REs in the eREG ml in the PRB nn constitute a group of ePHICH Time-frequency resources;

And so on;

In the PRB nl, the pl~p2 REs in the eREG mm, the p2+1~p3 REs in the eREG mm in the PRB n2, and the px+l~pp REs in the eREG mm in the PRB nn constitute a group of ePHICH Time-frequency resources.

Other PRB resource partitioning methods that can be used for ePHICH transmission are similar.

Where nl, n2 nn denote PRB index, 1 η2 ...... < nn, all integers greater than or equal to 0; ml, m2 mm denotes the eREG index in the PRB, ml m2 ... ... < mm, are greater than or An integer equal to 0; pl, p2 p represents the RE logical index within the eREG, and pl p2 ... < pp, are integers greater than or equal to zero.

Method three:

The ePHICH transmission candidate time-frequency resource is divided into one or more groups in units of eREG. Excellent Optionally, one eREG in each ePHICH PRB resource constitutes an ePHICH time-frequency resource group. The eREG is an eREG resource configured to be available for ePHICH transmission.

E.g:

The eREG ml in the PRB nl constitutes a set of ePHICH time-frequency resources;

The eREG m2 in PRB nl constitutes a set of ePHICH time-frequency resources;

The eREG mm in PRB nl constitutes a set of ePHICH time-frequency resources;

The eREG ml in PRB n2 constitutes a set of ePHICH time-frequency resources;

The eREG m2 in the PRB n2 constitutes a set of ePHICH time-frequency resources;

The eREG mm in PRB n2 constitutes a set of ePHICH time-frequency resources;

And so on;

The eREG ml in PRB nn constitutes a set of ePHICH time-frequency resources;

The eREG m2 in the PRB nn constitutes a set of ePHICH time-frequency resources;

The eREG mm in PRB nn constitutes a set of ePHICH time-frequency resources;

Where: nl, n2 nn denote PRB index, nl n2 ... < nn, all integers greater than or equal to 0; ml, m2 mm denotes the eREG index within the PRB, ml m2

< ... < < mm, are all integers greater than or equal to 0.

Method 4:

The ePHICH transmission candidate time-frequency resources are divided into one or more groups based on ZP-CSI-RS/NZP-CSI-RS resources. Preferably, the set of ePHICH time-frequency resources is formed by a positionally equivalent ZP-CSI-RS/NZP-CSI-RS resource on a plurality of PRBs. The ZP-CSI-RS/NZP-CSI-RS resource is a ZP-CSI-RS/NZP-CSI-RS resource configured for ePHICH transmission.

E.g:

Will be in the PRB nl ZP-CSI-RS/NZP-CSI-RS resource ml, PRB n2 The ZP-CSI-RS/NZP-CSI-RS resource ml and the ZP-CSI-RS/NZP-CSI-RS resource ml in the PRBnn constitute a set of ePHICH time-frequency resources;

Will be in the PRB nl ZP-CSI-RS/NZP-CSI-RS resource m2, PRB n2

ZP-CSI-RS/NZP-CSI-RS resources m2 and PRBnn ZP-CSI-RS/NZP-CSI-RS resources m2 constitutes a group of ePHICH time-frequency resources;

So on and so forth;

Will be in the PRB nl ZP-CSI-RS/NZP-CSI-RS resource mm, PRB n2

ZP-CSI-RS/NZP-CSI-RS resources mm and PRBnn ZP-CSI-RS/ NZP-CSI-RS resources mm constitutes a set of ePHICH time-frequency resources;

Other PRB resource partitioning methods that can be used for ePHICH and so on.

Where: nl, n2 nn represents the PRB index, nl n2 ... < nn, are integers greater than or equal to 0; ml, ml mm corresponding representation within the PRB

ZP-CSI-RS/NZP-CSI-RS index, ml < m2 < ... < mm, are integers greater than or equal to 0.

Method 5:

The ePHICH transmission candidate time-frequency resources are divided into one or more groups based on ZP-CSI-RS/NZP-CSI-RS resources. Preferably, a set of ePHICH time-frequency resources is formed by ZP-CSI-RS/NZP-CSI-RS resources at different locations (i.e., at non-identical locations) on multiple PRBs. The ZP-CSI-RS/NZP-CSI-RS resource is configured as a ZP-CSI-RS/NZP-CSI-RS resource that can be used for ePHICH transmission.

E.g:

Will be in the PRB nl ZP-CSI-RS/NZP-CSI-RS resource ml, PRB n2

ZP-CSI-RS/NZP-CSI-RS resources m2 and PRB nn ZP-CSI-RS/NZP-CSI-RS resources mm constitutes a group of ePHICH time-frequency resources;

Will be in the PRB nl ZP-CSI-RS/NZP-CSI-RS resource m2, PRB n2

ZP-CSI-RS/NZP-CSI-RS resources m3 and PRB nn ZP-CSI-RS/NZP-CSI-RS resources ml constitutes a group of ePHICH time-frequency resources;

In the PRB nl ZP-CSI-RS/NZP-CSI-RS resources m3, PRB n2 ZP-CSI-RS/NZP-CSI-RS resource m4 and PRB nn ZP-CSI-RS/NZP-CSI-RS resource m2 constitutes a set of ePHICH time-frequency resources;

ZP-CSI-RS/NZP-CSI-RS resource mm in PRB nl, ZP-CSI-RS/NZP-CSI-RS resource ml in PRB n2 and ZP-CSI-RS/NZP-CSI-RS resource in PRB nn m(ml) constitutes a set of ePHICH time-frequency resources;

Other PRB resources and/or ZP-CSI-RS/NZP-CSI-RS resources that can be used for ePHICH transmission are delineated.

Where nl, n2 nn denote PRB index, nl n2 ... < nn, all integers greater than or equal to 0; ml, ml m(m-l), mm denote PRB

ZP-CSI-RS/NZP-CSI-RS index, ml m2 ... < m(m-l) mm, are integers greater than or equal to 0.

the way

The ePHICH transmission candidate time-frequency resources are divided into one or more groups based on ZP-CSI-RS/NZP-CSI-RS resources. Preferably, more than one ZP-CSI-RS/NZP-CSI-RS resource in each ePHICH PRB resource constitutes a set of ePHICH time-frequency resources. The ZP-CSI-RS/NZP-CSI-RS resource is configured as a ZP-CSI-RS/NZP-CSI-RS resource that can be used for ePHICH transmission.

E.g:

The PRP nl in the ZP-CSI-RS/NZP-CSI-RS resource ml, PRB nl

ZP-CSI-RS/CSI-RS resources m2 and PRB nl ZP-CSI-RS/NZP-CSI-RS resources m constitute a group of ePHICH time-frequency resources;

The PRP nl in the ZP-CSI-RS/NZP-CSI-RS resource m(p+l), PRB nl

ZP-CSI-RS/CSI-RS resources m(p+2) and PRB nl ZP-CSI-RS/NZP-CSI-RS resources m(p+m) constitute a set of ePHICH time-frequency resources;

The ZP-CSI-RS/NZP-CSI-RS resource m(q+l) in PRB nl, ZP-CSI-RS/NZP-CSI-RS resource m(q+2) and PRB nl in PRB nl The ZP-CSI-RS/NZP-CSI-RS resource mm constitutes a set of ePHICH time-frequency resources; the PRP n2 is in the ZP-CSI-RS/NZP-CSI-RS resource ml, PRB n2

ZP-CSI-RS/NZP-CSI-RS resources m2 and PRB n2 ZP-CSI-RS/NZP-CSI-RS resources mp constitutes a set of ePHICH time-frequency resources;

The PRP n2 in the ZP-CSI-RS/NZP-CSI-RS resource m(p+l), PRB n2

ZP-CSI-RS/NZP-CSI-RS resources m(p+2) and PRB n2

The ZP-CSI-RS/NZP-CSI-RS resource m(p+m) constitutes a group of ePHICH time-frequency resources;

The ZP-CSI-RS/NZP-CSI-RS resource m(q+l) in PRB n2, the ZP-CSI-RS/NZP-CSI-RS resource m(q+2) and PRB n2 in PRB n2

ZP-CSI-RS/NZP-CSI-RS resource mm constitutes a set of ePHICH time-frequency resources;

And so on;

Will PRB nn in the ZP-CSI-RS/NZP-CSI-RS resource ml, PRB nn

ZP-CSI-RS/NZP-CSI-RS resources m2 and PRB nn ZP-CSI-RS/ NZP-CSI-RS resources mp constitutes a group of ePHICH time-frequency resources;

The PRP nn in the ZP-CSI-RS/NZP-CSI-RS resource m(p+l), PRB nn

ZP-CSI-RS/ NZP-CSI-RS resources m(p+2) and PRB nn

The PRP nn in the ZP-CSI-RS/NZP-CSI-RS resource m(q+l), PRB nn

ZP-CSI-RS/NZP-CSI-RS resources m(q+2) and PRB nn

Where: nl, n2 nn denote PRB index, nl n2 ...... < nn, all integers greater than or equal to 0; ml, ml mm correspondingly represent the ZP-CSI-RS/NZP-CSI-RS index in the PRB, ml m2 ... < mp < m(p+l) < m(p+2) < ... ...

< mq < m(q+l) < m(q+2) < mm, are integers greater than or equal to 0, and p and q are integers greater than or equal to 1.

Step 3: Map one or more ePHICH transmission candidate resources to the same by orthogonal sequence The same group of ePHICH time-frequency resources. Preferably, the orthogonal sequence is an orthogonal mask sequence.

Wherein, an ACK/NACK bit is spread over an orthogonal mask sequence of length W and mapped to W REs that can be used for ePHICH transmission. The W REs may be from the same eREG or the same ZP-CSI-RS resource or the same NZP-CSI-RS resource, or may be from different eREG or different ZP-CSI-RS resources or different NZP-CSI The -RS resource may be a consecutive W REs or W non-contiguous REs. However, usually, these W REs come from the same PRB. The length of the orthogonal sequence may be fixedly equal to 2, 4 or 8, or fixed equal to the number of RE resources of each group of ePHICH time-frequency resources on each PRB, or according to the intra-group ePHICH transmission candidate resources in each PRB. The RE number is a variable length.

Specifically, the following methods are used:

method one:

An orthogonal mask (OCC) sequence is multiplexed every 2 REs in the ePHICH time-frequency resource group, and the length of the OCC is equal to 2. Preferably, the OCC has the following orthogonal values:

The first value: [+1, +1];

The second value: [+1, -1];

The third value: [+J, +J];

The fourth value: [+J, -J].

Method 2:

An orthogonal mask (OCC) sequence is multiplexed every 4 REs in the ePHICH time-frequency resource group, and the length of the OCC is equal to 4. Preferably, the OCC has the following orthogonal values:

The first value: [+1, +1, +1, +1]

The second value: [+1, -1, +1, -i]

The third value: [+1, +1, -1, -i]

The fourth value: [+1, -1, -1, +1]

The fifth value: [+j, +j. +j. +j]

The sixth value: [+j, -j, +j. -J]

The seventh value: [+j, +j. -j, -J] The eighth value: -j , -j , +j]

Method three:

All REs in a PRB in the time-frequency resource group of the ePHICH are multiplexed with one OCC. On the OCC, the REs in the ePHICH time-frequency resource group are equal, and the length of the OCC is fixed. Otherwise, the length of the OCC is variable.

Step 4: Allocating an ePHICH time-frequency resource group and/or an orthogonal sequence to a specific terminal, and indicating to the specific terminal side, specifically including at least one of the following methods:

method one:

The network side configures its ePHICH time-frequency resource group and/or orthogonal sequence information for a specific terminal side, and notifies the terminal side through high layer signaling and/or physical layer signaling.

The terminal side detects and receives its ePHICH information on its ePHICH resource based on the received indication information.

Method 2:

The network side configures its ePHICH time-frequency resource group and/or orthogonal sequence information for a specific terminal side, and uses the high-level signaling, the PUSCH minimum PRB index, and the physical layer downlink control signaling to indicate the PUSCH DMRS cyclic shift value. At least one of the bit control signaling is indicated to the particular terminal side. The PUSCH corresponds to the ePHICH, that is, the ePHICH is feedback of the PUSCH ACK/NACK information.

The terminal side detects and receives its ePHICH information on its ePHICH resource based on the indication information. Method three:

The network side configures its ePHICH time-frequency resource group and/or orthogonal sequence information for a specific terminal side, and is used for indicating by high-level 3-bit signaling, PUSCH minimum PRB index, and physical layer downlink control signaling for indicating PUSCH DMRS. At least one of the 3-bit control signaling of the PUSCH DMRS cyclic shift value is indicated to the specific terminal side. The PUSCH corresponds to the ePHICH, that is, the ePHICH is feedback of the PUSCH ACK/NACK information.

The terminal side detects and receives its ePHICH information on its ePHICH resource based on the indication information. The invention is further illustrated by several application examples below:

Application example one

Only the first eCCE (ie eCCE 0) can be used for ePHICH transmission in each PRB resource (hereinafter referred to as ePHICH PRB resource) that can be used for ePHICH transmission.

All eCCE 0 resources available for ePHICH transmission are divided into one or more groups, and preferably all eCCE resources are divided in units of eREG. When each eCCE contains 4 eREGs, all transmission candidate eCCE resources in the ^^ ePHICH PRB are divided into 4N _PRB groups, where each group consists of a single eREG or equivalent eREG resource; when each eCCE contains 8 For each eREG, all the transmission candidate eCCE resources in the ^^ ePHICH PRB can be divided into 8N _PRB groups, where each group consists of a single eREG resource or equivalent eREG resource. In the centralized ePHCIH transmission mode, each group of ePHICH time-frequency resources is composed of eREGs on one PRB. In the distributed ePHICH transmission mode, each group of ePHICH time-frequency resources is composed of eREG resources on multiple PRBs, such as The first set of ePHICH time-frequency resources consists of the first half RE of the eREG O on the PRB 0 and the corresponding second half of the eREG 1 on the PRBLN _PRB /2", and the second set of ePHICH time-frequency resources is the eREG 0 on the PRB 0 The remaining second half RE and the corresponding first half RE of PRB 1 are formed, and so on.

In the N-group ePHICH time-frequency resources, each orthogonal set of ePHICH time-frequency resources can be mapped with multiple orthogonal mask sequences. These orthogonal mask sequences are orthogonal and mapped to each group by the same mapping method. ePHICH time-frequency resources. The length of the orthogonal mask sequence may be fixed to be equal to 2 or 4 or a variable length, and may be in each PRB for every 2 REs, every 4 REs, or each set of ePHICH time-frequency resources in each eREG. The RE resources are mapped for units. Each orthogonal mask can be used to bind one terminal, that is, each group of ePHICH time-frequency resources can simultaneously multiplex multiple terminals.

The network side indicates the PRB resource, the eCCE resource, the allocated ePHICH time-frequency resource group and the orthogonal mask sequence related information that can be used for the ePHICH transmission to the terminal side, and the terminal side receives its own ePHICH according to the above information.

The remaining eCCE resources in the PRB that can be used for ePHICH transmission except for the eCCE for ePHICH transmission can be used for ePDCCH or PDSCH transmission. Terminal side passes blind detection or rate The manner of matching receives ePDCCH or PDSCH on these PRBs.

Application example two

The network side determines that the ePHICH PRB resource is 4 and the index is PRB 0-3, and only the eREG resource in each ePHICH PRB resource is {0, 4, 8, 12}, which can be used for ePHICH transmission, as shown in Figure 3. Show. Assume that only the first 8 REs in each eREG (in the order of the first frequency domain, the frequency domain from low to high, and the time domain from front to back) can be used for ePHICH transmission, as shown in Figure 6.

The network side divides all resources available for ePHICH transmission into 16 groups in units of eREG. Each ePHICH time-frequency resource group is composed of 8 REs. Each of the 8 REs is from the corresponding eREG in the same PRB. Corresponding RE position, as shown in Figure 7 (a) ~ 7 (d): ePHICH time-frequency resource group 0 is from the first and second REs of eREG 0 in PRB 0, respectively.

In the third and fourth REs of eREG 0 in PRB 1, the 5th and 6th REs of eREG 0 and the 7th and 8th REs of eREG 0 in PRB 3;

ePHICH time-frequency resource group 1 is from the 3rd and 4th REs of eREG 0 in PRB 0, the 5th and 6th REs of eREG 0 in PRB 1, and the 7th and 8th REs of eREG 0 in PRB 2 And the first and second REs of eREG O in PRB 3;

ePHICH time-frequency resource group 2 consists of the 5th and 6th REs of eREG 0 in PRB 0, the 7th and 8th REs of eREG 0 in PRB 1, and the 1st and 2nd RE of eREG 0 in PRB 2 And the third and fourth REs of eREG 0 in PRB 3;

The ePHICH time-frequency resource group 3 consists of the 7th and 8th REs from eREG 0 in PRB 0, the 1st and 2nd REs of eREG 0 in PRB 1 , and the 3rd and 4th REs of eREG 0 in PRB 2 And the 5th and 6th REs of eREG 0 in PRB 3;

The ePHICH time-frequency resource group 4 is derived from the first and second REs of eREG 4 in PRB 0 and the 5th and 6th REs of eREG 4 in the 3rd and 4th REs, PRB 2 of eREG 4 in PRB 1 , the 7th and 8th RE of eREG 4 in PRB 3;

And so on.

The ACK/NACK information of multiple terminals may be simultaneously mapped on a set of ePHICH time-frequency resource elements after spreading with different orthogonal mask sequences of length 2. The orthogonal mask sequence of length 2 is repeatedly mapped in units of two REs in each PRB in the ePHICH time-frequency resource group (false Let users 1~4 share the ePHICH time-frequency resource group 0):

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1], as shown in Figure 8(a) ~8(d);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1], as shown in Fig. 8(e) ~8(h);

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j], as shown in Fig. 8(i) ~8(1);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+j , -j] as shown in Figure 8 ( m ) ~ 8 ( ).

The network side indicates the PRB resource, the eCCE resource, the allocated ePHICH time-frequency resource group and the orthogonal mask sequence related information that can be used for ePHICH transmission to the terminal, and the terminal receives its own ePHICH according to the above information.

The remaining eCCE resources other than the eCCE used for ePHICH transmission in the PRB that can be used for ePHICH transmission can be used for ePDCCH or PDSCH transmission. The terminal side receives the ePDCCH or PDSCH on these PRBs by means of blind detection or rate matching.

Application example three

The network side divides all resources available for ePHICH transmission into 16 groups in units of eREG, as shown in Figure 9 (a) ~ 9 (d). Each ePHICH time-frequency resource group is composed of 8 REs, and each of the 8 REs is from the corresponding RE position of the corresponding eREG in the same PRB, such as:

ePHICH time-frequency resource group 0 is derived from PRB 0, PRB 1, PRB 2 and PRB 3 respectively eREG

The first two REs of 0 constitute;

The ePHICH time-frequency resource group 1 is composed of the 3rd and 4th REs from eREG 0 of PRB 0, PRB 1, PRB 2 and PRB 3 respectively; The ePHICH time-frequency resource group 2 is composed of 5th and 6th REs from eREG O in PRB 0, PRB 1, PRB 2 and PRB 3 respectively;

The ePHICH time-frequency resource group 3 is composed of the 7th and 8th REs from eREG O in PRB 0, PRB 1, PRB 2 and PRB 3 respectively;

The ePHICH time-frequency resource group 4 is composed of the first two REs from eREG 4 in PRB 0, PRB 1, PRB 2 and PRB 3 respectively;

And so on.

The ACK/NACK information of multiple terminals can be simultaneously mapped on a set of ePHICH time-frequency resource elements by spreading with different orthogonal mask sequences of length 2. The orthogonal mask sequence of length 2 is repeatedly mapped in units of every two REs in the ePHICH time-frequency resource group (assuming that the ePHICHs of users 1~4 are transmitted on the ePHICH time-frequency resource group 0):

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1], as shown in Figure 10 (a);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1], as shown in Figure 10(b);

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j], as shown in Figure 10(c);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j], as shown in Figure 10(d).

The network side indicates the PRB resource, the eCCE resource, the allocated ePHICH time-frequency resource group resource and the orthogonal mask sequence related information that can be used for the ePHICH transmission to the terminal, and the terminal receives its own ePHICH according to the above information.

Application example four

The network side determines that the ePHICH PRB resource is 4 and the index is PRB 0-3, and only the eREG resource in each ePHICH PRB resource is {0, 4, 8, 12} can be used for ePHICH transmission. Lose, as shown in Figure 3. Assume that only the first 8 REs in each eREG (in the order of the first frequency domain, the frequency domain from low to high, and the time domain from front to back) can be used for ePHICH transmission, as shown in Figure 6.

The network side divides all resources available for ePHICH transmission into 16 groups in units of eREG, as shown in Figure 11 (a) ~ 11 (d). Each ePHICH time-frequency resource group consists of 8 REs, and each of the 8 REs comes from the corresponding RE location of the corresponding eREG in the same PRB, such as:

The ePHICH time-frequency resource group 0 is composed of the first to fourth REs of eREG 0 in PRB 0 and the fifth to eighth REs of eREG 0 in PRB 2;

The ePHICH time-frequency resource group 1 is composed of the 5th to 8th REs of eREG 0 in PRB 0 and the 1st to 4th REs of eREG O in PRB 2;

The ePHICH time-frequency resource group 2 is composed of the first to fourth REs of eREG 4 in PRB 0 and the fifth to eighth REs of eREG 0 of PRB 2;

The ePHICH time-frequency resource group 3 is composed of the 5th to 8th REs of eREG 4 in PRB 0 and the 1st to 4th REs of eREG 0 in PRB 2;

The ePHICH time-frequency resource group 4 is derived from the first to fourth REs of eREG 8 in PRB 0 and

The fifth to eighth REs of eREG 0 in PRB 2;

The ePHICH time-frequency resource group 5 is composed of the 5th to 8th REs of eREG 8 in PRB 0 and the 1st to 4th REs of eREG 0 in PRB 2;

The ePHICH time-frequency resource group 6 is composed of the first to fourth REs of eREG 12 in PRB 0 and the fifth to eighth REs of eREG O in PRB 2;

The ePHICH time-frequency resource group 7 is composed of the 5th to 8th REs of eREG 12 in PRB 0 and the 1st to 4th REs of eREG 0 in PRB 2;

The ePHICH time-frequency resource group 8 is composed of the first to fourth REs of eREG 0 in PRB 1 and the fifth to eighth REs of eREG 0 of PRB 3;

The ePHICH time-frequency resource group 9 is derived from the 5th to 8th REs of eREG 0 in PRB 1 and

The first to fourth REs of eREG 0 in PRB 3;

And so on. The ACK/NACK information of multiple terminals may be simultaneously mapped on a set of ePHICH time-frequency resource elements after spreading with different orthogonal mask sequences of length 4. The orthogonal mask sequence of length 4 is repeatedly mapped in units of every two REs in the ePHICH time-frequency resource group (assuming that the ePHICHs of users 1-8 are transmitted on the ePHICH time-frequency resource group 0):

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, +1, +1], as shown in Figure 12 (a) and Figure 12 (b);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, +1, -1], as shown in Figure 12 (c) and Figure 12 (d);

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, -1, -1], as shown in Figure 12 (e) and Figure 12 (f);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, -1, +1], as shown in Figure 12 (g) and Figure 12 (h);

User 5's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, +j, +j], as shown in Figure 12 (i) and Figure 12 (j);

User 6's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, +j, -j], as shown in Figure 12 (k) and Figure 12 (1);

User 7's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, -j, -j], as shown in Figure 12 (m) and Figure 12 (n);

User 8's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, -j, +j], as shown in Figure 12 (0) and Figure 12 (p).

Application example five

The network side determines that the ePHICH PRB resource is 4 and the index is PRB 0-3, respectively, and Only eREG resources in each ePHICH PRB resource are {0, 4, 8, 12} available for ePHICH transmission, as shown in Figure 3. Assume that only the first 8 REs in each eREG (in the order of the first frequency domain, the frequency domain from low to high, and the time domain from front to back) can be used for ePHICH transmission, as shown in Figure 6.

The network side divides all resources available for ePHICH transmission into 16 groups in units of eREG, as shown in Figure 13 (a) ~ Figure 13 (d). Each ePHICH time-frequency resource group consists of 8 REs, and each of the 8 REs comes from the corresponding RE location of the corresponding eREG in the same PRB, such as:

The ePHICH time-frequency resource group 0 is composed of the first four REs from eREG 0 in PRB 0 and PRB 2 respectively;

The ePHICH time-frequency resource group 1 is derived from the last four of eREG 0 in PRB 0 and PRB 2 respectively.

RE composition;

The ePHICH time-frequency resource group 2 consists of the first four REs from eREG 1 in PRB 0 and PRB 2 respectively;

The ePHICH time-frequency resource group 3 is composed of the last four REs of eREG 1 from PRB 0 and PRB 2 respectively;

The ePHICH time-frequency resource group 4 is composed of the first four REs from eREG 2 in PRB 0 and PRB 2, respectively;

The ePHICH time-frequency resource group 5 is composed of the last four REs of eREG 2 from PRB 0 and PRB 2 respectively;

The ePHICH time-frequency resource group 6 is derived from the first four of eREG 2 in PRB 0 and PRB 2 respectively.

RE composition;

The ePHICH time-frequency resource group 7 is composed of the last four REs from eREG 2 in PRB 0 and PRB 2 respectively;

The ePHICH time-frequency resource group 8 is composed of the first four REs from eREG 2 in PRB 1 and PRB 3 respectively;

And so on.

The ACK/NACK information of multiple terminals may be simultaneously mapped on a set of ePHICH time-frequency resource elements after spreading with different orthogonal mask sequences of length 4. Orthogonal mask order of length 4 The column is repeatedly mapped in units of every two REs in the ePHICH time-frequency resource group (assuming that users 1~8 share the ePHICH time-frequency resource group 0 resources):

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, +1, +1], as shown in Figures 14(a) and 14(b);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, +1, -1], as shown in Figures 14(c) and 14(d);

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, -1, -1], as shown in Figures 14(e) and 14(f);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, -1, +1], as shown in Figures 14(g) and 14(h);

User 5's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, +j, +j], as shown in Figures 14(i) and 14(j);

User 6's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, +j, -j], as shown in Figures 14(k) and 14(1);

User 7's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, -j, -j], as shown in Figures 14 (m) and 14 (n);

User 8's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, -j, +j], as shown in Figures 14 (0) and 14 (p).

Application example six

The network side determines that the ePHICH PRB resource is 2 and the index is PRB 0-1, and only the ZP-CSI-RS resources 0~3 in each ePHICH PRB resource can be used for ePHICH transmission. Then all these ZP-CSI-RS resources available for ePHICH transmission are divided into N according to the following manner. (N=4) groups (a group of ePHICH time-frequency resources are from the same PRB, and the corresponding ePHICH transmission mode is centralized transmission):

The ZP-CSI-RS resource {0, 1} on PRB 0 constitutes the first group of ePHICH time-frequency resources;

The ZP-CSI-RS resources {2, 3} on PRB 0 constitute a second group of ePHICH time-frequency resources; the ZP-CSI-RS resources {0, 1} on PRB 1 constitute a third group of ePHICH time-frequency resources;

The ZP-CSI-RS resources {2, 3} on PRB 1 constitute the fourth group of ePHICH time-frequency resources.

The ACK/NACK information of multiple terminals can be simultaneously mapped on a set of ePHICH time-frequency resource elements after spreading with different orthogonal mask sequences of length 4. The orthogonal mask sequence of length 4 is remapped in units of each set of ZP-CSI-RS resources (four REs) in the ePHICH time-frequency resource group:

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, +1, +1];

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, +1, -1];

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, -1, -1];

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, -1, +1];

User 5's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, +j, +j];

User 6's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, +j, -j];

User 7's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, -j, -j];

User 8's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, -j, +j].

The network side uses the above PRB resources, eCCE resources, and allocated for ePHICH transmission. The ePHICH time-frequency resource group and the orthogonal mask sequence related information are indicated to the terminal, and the terminal receives its own ePHICH according to the above information.

Application example seven

The network side determines that the ePHICH PRB resource is two and the index is PRB 0-1, and only the ZP-CSI-RS resource 0~3 in each ePHICH PRB resource can be used for ePHICH transmission. Then all the ZP-CSI-RS resources available for ePHICH transmission are divided into N (N=4) groups according to the following manner (a group of ePHICH time-frequency resources are from multiple PRBs, and corresponding ePHICH transmission mode is distributed transmission) ), as shown in Figure 15 (a) and Figure 15 (b) (taking the regular CP as an example): ePHICH time-frequency resource group 0 consists of ZP-CSI-RS resource {0} on PRB 0 and ZP on PRB 1 - CSI-RS resource {1 } constitutes;

The ePHICH time-frequency resource group 1 is composed of ZP-CSI-RS resource {1 } on PRB 0 and ZP-CSI-RS resource {0} on PRB 1;

The ePHICH time-frequency resource group 2 is composed of a ZP-CSI-RS resource {2} on PRB 0 and a ZP-CSI-RS resource {3} on PRB 1;

The ePHICH time-frequency resource group 3 is composed of ZP-CSI-RS resource {3} on PRB 0 and ZP-CSI-RS resource {2} on PRB 1.

The ACK/NACK information of multiple terminals can be simultaneously mapped on a set of ePHICH time-frequency resource elements after spreading with different orthogonal mask sequences of length 4. The orthogonal mask sequence of length 4 is repeatedly mapped in units of ZP-CSI-RS resources (four REs) in each PRB in the ePHICH time-frequency resource group (assuming that users 1~8 jointly occupy the ePHICH time-frequency resource group) 0) :

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, +1, +1], as shown in Figures 16(a) and 16(b);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, +1, -1], as shown in Figures 16(c) and 16(d);

User 3's ACK/NACK information is performed using the orthogonal mask sequence [+1, +1, -1, -1] Spread spectrum, as shown in Figures 16 (e) and 16 (f);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, -1, +1], as shown in Figures 16(g) and 16(h);

User 5's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, +j, +j], as shown in Figures 16(i) and 16(j);

User 6's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, +j, -j], as shown in Figures 16(k) and 16(1);

User 7's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, -j, -j], as shown in Figures 16 (m) and 16 (n);

User 8's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, -j, +j], as shown in Figures 16 (0) and 16 (p).

Application example eight

The network side determines that the ePHICH PRB resource is two and the index is PRB 0-1, and only the ZP-CSI-RS resource 0~3 in each ePHICH PRB resource can be used for ePHICH transmission. Then all the ZP-CSI-RS resources available for ePHICH transmission are divided into N (N=4) groups according to the following manner (a group of ePHICH time-frequency resources are from multiple PRBs, and corresponding ePHICH transmission mode is distributed transmission) ), as shown in Figure 17 (a) and Figure 17 (b) (taking the regular CP as an example): ePHICH time-frequency resource group 0 consists of ZP-CSI-RS resource {0} on PRB 0 and ZP on PRB 1 - CSI-RS resource {0} constitutes;

The ePHICH time-frequency resource group 1 is composed of ZP-CSI-RS resource {1} on PRB 0 and ZP-CSI-RS resource {1} on PRB 1;

ePHICH time-frequency resource group 2 is composed of ZP-CSI-RS resources {2} and PRB 1 on PRB 0 ZP-CSI-RS resource {2} constitutes;

The ePHICH time-frequency resource group 3 is composed of ZP-CSI-RS resource {3} on PRB 0 and ZP-CSI-RS resource {3} on PRB 1.

User 1's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, +1, +1], as shown in Figures 18(a) and 18(b);

User 2's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, +1, -1], as shown in Figures 18(c) and 18(d);

User 3's ACK/NACK information is spread using the orthogonal mask sequence [+1, +1, -1, -1], as shown in Figures 18(e) and 18(f);

User 4's ACK/NACK information is spread using the orthogonal mask sequence [+1, -1, -1, +1], as shown in Figures 18(g) and 18(h);

User 5's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, +j, +j], as shown in Figures 18(i) and 18(j);

User 6's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, +j, -j], as shown in Figures 18(k) and 18(1);

User 7's ACK/NACK information is spread using the orthogonal mask sequence [+j, +j, -j, -j] as shown in Figures 18(m) and 18(n);

User 8's ACK/NACK information is spread using the orthogonal mask sequence [+j, -j, -j, +j] as shown in Figures 18 (0) and 18 (p).

Application example nine

All PRBs in the downlink system bandwidth can be used for ePHICH transmission. The downlink system bandwidth is divided into 8 groups, and each group of PRBs can be divided into ePHICH time-frequency resource groups according to the manners described in the foregoing application examples 1 to 8, wherein each group of ePHICH time-frequency resources can be passed by multiple terminal sides. Orthogonal sequence sharing.

The network side may indicate to the terminal side of the PRB group by the 3-bit high-layer signaling or the 3-bit high-layer signaling used to indicate the corresponding PUSCH DMRS in the prior art; and simultaneously indicate the lowest PRB index and the physical layer downlink control signal to the terminal side. The 3-bit control signaling used to indicate the PUSCH DMRS cyclic shift value in the command indicates to the terminal side the ePHICH time-frequency resource group and/or the orthogonal sequence information in the PRB in which it is located.

The receiving side determines the high-level 3-bit signaling used to indicate the corresponding PUSCH DMRS, the PUSCH lowest PRB index, and the 3-bit control signaling used to indicate the PUSCH DMRS cyclic shift value in the physical layer downlink control signaling. ePHICH resources and receive ePHICH.

It should be noted that most of the above application examples are based on the case of conventional CP regular subframes.

In addition, in this embodiment, a network side device, as shown in FIG. 19, includes: a configuration module, configured to: when an enhanced physical hybrid retransmission request indication channel (ePHICH) transmits a set of ePHICHs in candidate time-frequency resources Frequency resources and/or orthogonal sequence information are configured to the terminal;

An indication module, configured to indicate, to the terminal, the set of ePHICH time-frequency resources and/or orthogonal sequence information configured by the configuration module for the terminal;

The ePHICH transmission candidate time-frequency resource includes one or more ePHICH time-frequency resources, and each group of ePHICH time-frequency resources includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed by an orthogonal sequence. Mapping in the corresponding ePHICH time-frequency resource group; using different ePHICH transmission candidate resources in the same group of ePHICH time-frequency resources The orthogonal sequences are orthogonal to each other;

Preferably, the indication module is further configured to pass, in advance, signaling for indicating a physical hybrid retransmission request indication channel (PHICH) duration, signaling, a Ng and a bitmap for indicating a PHICH group number related parameter Ng ( At least one of the bitmaps indicates the ePHICH transmission candidate time-frequency resource to the terminal side.

Preferably, the PRB resource that can be used for ePHICH transmission is a PRB resource that can be used for enhanced physical downlink control channel (ePDCCH) transmission or can be used for ePDCCH blind detection.

Preferably, each of the PRB resources that can be used for ePHICH transmission has only one fixed eCCE, eREG, ZP-CSI-RS or NZP-CSI-RS resource available for ePHICH transmission.

Preferably, in each of the PRB resources available for ePHICH transmission, the configuration module is configured to use an eREG with an eREG index satisfying wmod = i for ePHICH transmission;

- at least one of them, n

Represents an eREG index.

Preferably, the value is

The eREG index satisfies the mod 2 = eREG for ePHICH transmission until the demand for the ePHICH resource is satisfied; where Γ is a natural number.

Preferably,

In each of the PRB resources available for ePHICH transmission, the configuration module is used to

The eREG index satisfies the =j eREG priority for ePHICH transmission;

Q

Where: ρ' is an integer greater than 1 and less than 16, · is at least one of {0, 1, ..., 2' - 1}, "table Show eREG index.

Preferably, the configuration module is further configured to: if it is determined that the demand for the ePHICH resource exceeds,

L Q'"

The eREG index satisfies y's eREG for ePHICH transmission until the ePHICH is satisfied

Q

The demand for resources; where, 'is a natural number.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each group of ePHICH time-frequency resources are peer-to-peer from more than one PRB. The RE is located in the eREG.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each group of ePHICH time-frequency resources is composed of an equivalent eREG.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each set of ePHICH time-frequency resources is composed of one eREG.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource resources into one or more groups based on the NZP-CSI-RS, where each group of ePHICH time-frequency resources is from more than one PRB. Position-equal NZP-CSI-RS resource composition.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB. The NZP-CSI-RS resource is in a non-identical position.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the NZP-CSI-RS resource, where each set of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource. One or more NZP-CSI-RS resources within.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB. Positionally equivalent ZP-CSI-RS resources.

Preferably, the configuration module is further configured to transmit the ePHICH based on a ZP-CSI-RS resource. The candidate time-frequency resources are divided into one or more groups, and each group of ePHICH time-frequency resources is composed of ZP-CSI-RS resources from different ones of the PRBs at different locations.

Preferably, the configuration module is further configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource. One or more ZP-CSI-RS resources within.

Preferably, the orthogonal sequence is an orthogonal mask sequence, and the length of the orthogonal mask sequence is 2 or 4 or equal to the number of REs included in each PRB of each group of ePHICH time-frequency resources.

Preferably, each of the groups of ePHICH time-frequency resources is multiplexed with an orthogonal mask sequence 歹 |J, and the length of the orthogonal mask sequence is equal to 2; or

Preferably, the indication module is configured to: indicate, by the at least one of the following, the set of ePHICH time-frequency resources and/or orthogonal sequence information configured by the configuration module for the terminal to the terminal: And a corresponding physical uplink data sharing channel (PUSCH) lowest PRB index, and at least one of three-bit control signaling used to indicate the PUSCH demodulation reference signal (DMRS) cyclic shift value in the physical layer downlink control signaling; Or,

Correspondingly, in this embodiment, a terminal, as shown in FIG. 20, includes:

a receiving module, configured to receive, by the network side, a set of ePHICH time-frequency resources and/or orthogonal sequence indication information configured for the terminal in the enhanced physical hybrid retransmission request indication channel (ePHICH) transmission candidate time-frequency resource;

Processing device, configured to detect and/or receive according to the indication information received by the receiving module ePHICH;

Each ePHICH time-frequency resource includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed by one orthogonal sequence and mapped in a corresponding ePHICH time-frequency resource group; and the same group of ePHICH time-frequency resource groups Orthogonal sequences used by different ePHICH transmission candidate resources are orthogonal to each other;

Preferably,

The receiving module is further configured to receive, by the network side, signaling for indicating a PHICH duration, signaling for indicating a PHICH group number related parameter Ng, a parameter N _g for indicating a PHICH group number correlation, and a bitmap (bitmap) At least one of the at least one of the ePHICH transmission candidate time-frequency resources indicated to the terminal.

Preferably, the receiving module is further configured to determine a PRB resource that can be used for ePHICH transmission by receiving signaling on the network side for indicating PRB resources that are available for ePDCCH transmission or available for ePDCCH blind detection;

The PRB resource that can be used for ePHICH transmission is a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection.

Preferably, each of the PRB resources available for ePHICH transmission has only one fixed eCCE, eREG, ZP-CSI-RS or NZP-CSI-RS resource available for ePHICH transmission.

Preferably,

The processing module is configured to: in each of the ePHICH transmission candidate resources, eREG that satisfies w mod = eREG index is used for ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, e, η represents an eREG cable

Preferably, the processing module is configured to: if it is determined that the demand for the ePHICH resource exceeds In the range of 0 -1, starting from the smallest integer smaller than the value of z, as the value of Γ, the eREG index satisfies the eREG of mod2 = for ePHICH transmission until the demand for the ePHICH resource is satisfied. ; Among them, Γ is a natural number.

Preferably,

The processing module is configured to: in each of the ePHICH transmission candidate resources, an eREG index

: j's eREG is preferred for ePHICH transmission.

Where: ρ' is an integer greater than 1 and less than 16, · Ε [0, ΐ, ..., β' - 1], "representing the eREG index. Preferably, the processing module is used to determine ePHICH resources. If the demand exceeds, then it is 0~Q'-1

Q'

Within the range of less than the smallest integer of the values, as the value of 'eREG, the eREG that satisfies the eREG index is used for ePHICH transmission until the ePHICH resource is satisfied.

Demand; where, is a natural number.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an eREG, where each group of ePHICH time-frequency resources is an eREG that is peer-to-peer from more than one PRB. The inner position is equivalent to the RE.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resources into one or more groups based on the eREG, where each group of ePHICH time-frequency resources is composed of an equivalent eREG.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resources into one or more groups based on the eREG, where each set of ePHICH time-frequency resources is composed of one eREG.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one location on the PRB. Peer-to-peer NZP-CSI-RS resource composition.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB. The NZP-CSI-RS resource is in a non-identical location.

Preferably, the processing module is configured to transmit the ePHICH based on an NZP-CSI-RS resource. The candidate time-frequency resources are divided into one or more groups, and each group of ePHICH time-frequency resources is composed of one or more NZP-CSI-RS resources in a single ePHICH transmission candidate resource.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one location on the PRB Peer-to-peer ZP-CSI-RS resource composition.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from more than one PRB. The ZP-CSI-RS resources are in different locations.

Preferably, the processing module is configured to divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource. One or more ZP-CSI-RS resources are constructed.

Preferably, the orthogonal sequence is an orthogonal mask sequence, and the length of the orthogonal mask sequence is 2 or 4 or 8 or the number of REs included in each ePHICH time-frequency resource group on a single PRB. .

Preferably, the receiving module is configured to determine, by one of the following methods, an ePHICH time-frequency resource group and/or orthogonal sequence information allocated to the network side:

For at least one of receiving high-level 3-bit signaling for indicating a corresponding PUSCH DMRS, the PUSCH lowest PRB index, and 3-bit control signaling for indicating a PUSCH DMRS cyclic shift value in physical layer downlink control signaling One. One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. In view of the present invention, various other modifications, equivalents, improvements, etc., should be made without departing from the spirit and scope of the invention. It is included in the scope of protection of the present invention.

Industrial applicability

After the embodiment of the present invention is used, the downlink HARQ information transmission capacity can be improved, the anti-interference performance of the downlink HARQ information transmission can be enhanced, and the downlink HARQ information can be effectively transmitted in the NCT and Low cost MTC scenarios.

Claims

Claim

A method for transmitting an enhanced physical hybrid retransmission request indication channel (ePHICH), which is applied to the network side, and includes:

Configuring and indicating a set of ePHICH time-frequency resources and/or orthogonal sequence information in the ePHICH transmission candidate time-frequency resource to the terminal;

2. The method according to claim 1, further comprising:

3. The method of claim 1, wherein

The PRB resource that can be used for ePHICH transmission is a physical downlink control channel that can be used for enhancement

(ePDCCH) transmission or PRB resource available for ePDCCH blind detection.

4. The method according to claim 1 or 3, wherein

Each of the PRB resources available for ePHICH transmission has only one fixed eCCE, eREG, ZP-CSI-RS or NZP-CSI-RS resource available for ePHICH transmission.

5. The method of claim 1, wherein

In each of the PRB resources available for ePHICH transmission, the eREG whose eREG index satisfies n mod Q = i is preferentially used for ePHICH transmission; Where: ρ is an integer greater than 1 and less than 16, and is at least one of |ο,ι,..., -, where n is the eREG index.

6. The method according to claim 5, wherein the network side determines the ePHICH resource

Within the range, starting from the smallest integer smaller than the value of z, as the value of Γ, the eREG index satisfies the "mod2 = eREG for ePHICH transmission until the demand for the ePHICH resource is satisfied; wherein, For natural numbers.

7. The method of claim 1, wherein

The eREG index is satisfied in each of the PRB resources available for ePHICH transmission

: j's eREG is preferentially used for ePHICH transmission; where: ρ' is an integer greater than 1 and less than 16, and · is at least one of {0,1,...,2'-1}," indicating the eREG index.

8. The method according to claim 7, wherein, if the network side determines that the demand for ePHICH resources exceeds, the range of 0~Q'-1 is

Q'

Within the range, starting from the smallest integer smaller than the value, as the value of 'eREG, the eREG that satisfies the eREG index is used for ePHICH transmission until the ePHICH resource is satisfied.

Find; where, 'is a natural number.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on eREG, and each set of ePHICH time-frequency resources is from a position pair from more than one PRB. The equi-eRE in the eREG is equal to the RE.

10. The method of claim 1, wherein

The ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the eREG, and each set of ePHICH time-frequency resources is composed of an equivalent eREG.

11. The method of claim 1, wherein

The ePHICH transmission candidate time-frequency resource is divided into one or more groups based on the eREG, and each of the ePHICH time-frequency resources is composed of one eREG.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one The position of the equivalent NZP-CSI-RS resource on the PRB.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one. The NZP-CSI-RS resources in non-identical locations on the PRB.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is transmitted by a single ePHICH. One or more NZP-CSI-RS resources within a candidate resource.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one The positional equivalent ZP-CSI-RS resource on the PRB.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one. The ZP-CSI-RS resources in non-identical locations on the PRB.

The method according to claim 1, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is transmitted by a single ePHICH. One or more ZP-CSI-RS resources within a candidate resource.

18. The method of claim 1, wherein

The orthogonal sequence is an orthogonal mask sequence, and the orthogonal mask sequence has a length of 2 or 4 or equal to the number of REs included in each PRB of each group of ePHICH time-frequency resources.

19. The method of claim 1 or 18, wherein

Each of the two groups of ePHICH time-frequency resources is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to 2; or

The REs on each PRB of each group of ePHICH time-frequency resources are multiplexed with an orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to each PRB of each group of ePHICH time-frequency resources. The number of REs contained on it.

20. The method of claim 1, wherein

The network side indicates the ePHICH time-frequency resource group information and/or orthogonal sequence information to the terminal by using at least one of the following manners:

A transmission method for enhancing a physical hybrid retransmission request indication channel (ePHICH), which is applied to a terminal side, and includes:

Receiving, by the network side, a set of ePHICH time-frequency resources and/or orthogonal sequence indication information configured for the terminal in the ePHICH transmission candidate time-frequency resource, and detecting and/or receiving the ePHICH according to the indication information;

The ePHICH transmission candidate time-frequency resource includes a physical resource block that can be used for ePHICH transmission.

(PRB) resource, enhanced physical control channel element (eCCE) resource, enhanced resource element group (eREG) resource, zero power channel state indication reference signal (ZP-CSI-RS) resource, non-zero power channel state indication reference signal (NZP) -CSI-RS) At least one of the resources.

22. The method of claim 21, further comprising:

The terminal side receiving network side passes signaling for indicating PHICH duration, for indicating

The signalling of the PHICH group number related parameter Ng, the parameter indicating the number of PHICH groups, and at least one of the bitmaps indicate the ePHICH transmission candidate time-frequency resource to the terminal side.

23. The method of claim 21, wherein The terminal side determines a PRB resource that can be used for ePHICH transmission by using signaling at the receiving network side to indicate a PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection; wherein the PRB resource that can be used for ePHICH transmission is available for ePDCCH transmission or PRB resources that can be used for ePDCCH blind detection.

24. The method of claim 21 or 23, wherein

25. The method of claim 21, wherein

In each of the ePHICH transmission candidate resources, the eREG index satisfies the eREG priority of "m ₀ dg = for ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, and ο, ι, n represents an eREG index.

The method according to claim 25, wherein the terminal side determines the ePHICH resource

Within the range, starting from the smallest integer smaller than the value of z, as the value of Γ, the eREG index satisfies the "mod 2 = eREG for ePHICH transmission until the demand for the ePHICH resource is satisfied; It is a natural number.

The method according to claim 21, wherein, in each of the ePHICH transmission candidate resources, the eREG index satisfies: eREG

Priority for ePHICH transmission;

Where: ρ' is an integer greater than 1 and less than 16, _/ e [o,l,...,g - 1] , "express eREG

The method according to claim 27, wherein, if the terminal side determines that the demand for the ePHICH resource exceeds, the terminal is in the range of 0~Q'-1.

Q'

Within the range, starting from the smallest integer smaller than the value, as the value of ', the eREG index satisfies: the eREG is used for ePHICH transmission until the ePHICH resource is satisfied.

Find; where, 'is a natural number.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on eREG, and each set of ePHICH time-frequency resources is from a position pair from more than one PRB. The equi-eRE in the eREG is equal to the RE.

30. The method of claim 21, wherein

31. The method of claim 21, wherein

The ePHICH transmission candidate time-frequency resources are divided into one or more groups based on the eREG, and each set of ePHICH time-frequency resources is composed of one eREG.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one The position of the equivalent NZP-CSI-RS resource on the PRB.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one. The NZP-CSI-RS resources in non-identical locations on the PRB.

The method of claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on NZP-CSI-RS resources, and each group of ePHICH time-frequency resources is transmitted by a single ePHICH. One or more NZP-CSI-RS resources within a candidate resource.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one The positional equivalent ZP-CSI-RS resource on the PRB.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is from more than one. The ZP-CSI-RS resources in non-identical locations on the PRB.

The method according to claim 21, wherein the ePHICH transmission candidate time-frequency resource is divided into one or more groups based on ZP-CSI-RS resources, and each group of ePHICH time-frequency resources is transmitted by a single ePHICH. One or more ZP-CSI-RS resources within a candidate resource.

38. The method of claim 21, wherein The orthogonal sequence is an orthogonal mask sequence, and the length of the orthogonal mask sequence is 2 or 4 or 8 or the number of REs included in each ePHICH time-frequency resource group on a single PRB.

39. The method of claim 38, wherein

Each of the two REs in the ePHICH time-frequency resource group is multiplexed with one orthogonal mask sequence, and the length of the orthogonal mask sequence is equal to 2; or

The method according to claim 21, wherein the terminal side determines an ePHICH time-frequency resource group and/or orthogonal sequence information allocated to it by the network side in one of the following manners:

41. A network side device, comprising:

The ePHICH transmission candidate time-frequency resource includes one or more ePHICH time-frequency resources, and each group of ePHICH time-frequency resources includes one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource is multiplexed by an orthogonal sequence. Mapping in the corresponding ePHICH time-frequency resource group; orthogonal sequences used by different ePHICH transmission candidate resources in the same group of ePHICH time-frequency resources are orthogonal to each other; The ePHICH transmission candidate time-frequency resources include: a physical resource block (PRB) resource usable for ePHICH transmission, an enhanced physical control channel element (eCCE) resource, an enhanced resource element group (eREG) resource, and a zero-power channel state indication reference signal ( ZP-CSI-RS) At least one of a resource, non-zero power channel state indication reference signal (NZP-CSI-RS) resource.

The device according to claim 41, wherein the indication module is further configured to: indicate, by using, signaling indicating a duration of a physical hybrid retransmission request indication channel (PHICH), for indicating a PHICH group number related parameter. Ng signaling, N _g and a bitmap (bitmap) indicating at least one of the frequency resource to the terminal ePHICH candidate transmission side.

43. The apparatus of claim 41, wherein

The PRB resource that can be used for ePHICH transmission is a PRB resource that can be used for enhanced physical downlink control channel (ePDCCH) transmission or can be used for ePDCCH blind detection.

44. The apparatus according to claim 41 or 43, wherein

45. The apparatus of claim 41, wherein the configuration module is configured to:

In each of the PRB resources available for ePHICH transmission, the eREG whose eREG index satisfies n mod Q = i is preferentially used for ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, at least one of n

Represents an eREG index.

The device according to claim 45, wherein the configuration module is further configured to: if the ePHICH resource is determined

16

In the range of 0, .1, starting from the smallest integer smaller than the value of I, as the value of z ',

Q"

47. The apparatus of claim 41, wherein the configuration module is configured to:

The eREG index is satisfied in each of the PRB resources available for ePHICH transmission : j's eREG is preferred for ePHICH transmission;

Where: ρ' is an integer greater than 1 and less than 16, and · is at least one of {0,1,...,2'-1}," indicating the eREG index.

The device according to claim 47, wherein the configuration module is further configured to: if it is determined that the demand for the ePHICH resource exceeds,

L Q'" is in the range of 0~Q'-1, starting from the smallest integer smaller than the value of , as the value of ', n

The eREG whose eREG index satisfies y is used for ePHICH transmission until the demand for the ePHICH resource is satisfied; where ' is a natural number.

49. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each group of ePHICH time-frequency resources are in an eREG internal location from one or more PRBs in a peer-to-peer position The equivalent RE constitutes.

50. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each group of ePHICH time-frequency resources is composed of an equivalent eREG.

51. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on the eREG, where each group of ePHICH time-frequency resources is composed of one eREG.

52. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource resources into one or more groups according to the NZP-CSI-RS, where each group of ePHICH time-frequency resources is peer-to-peer from more than one PRB The composition of the NZP-CSI-RS resources.

53. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups according to an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from a non-PRB from a non-PRB The NZP-CSI-RS resource in the same location.

54. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups according to an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH candidate resource. The above NZP-CSI-RS resources are composed.

55. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is peer-to-peer from more than one PRB The composition of the ZP-CSI-RS resources.

56. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is from a non-PRB from a non-PRB The ZP-CSI-RS resource of the same location is formed.

57. The apparatus of claim 41, wherein

The configuration module is further configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by a single ePHICH The above ZP-CSI-RS resources are composed.

58. The apparatus of claim 41, wherein

59. The apparatus of claim 41 or 58, wherein

60. The apparatus of claim 41, wherein

The indication module is configured to: indicate, by the at least one of the following, the set of ePHICH time-frequency resources and/or orthogonal sequence information configured by the configuration module for the terminal to the terminal:

61. A terminal, comprising:

The terminal according to claim 61, wherein the receiving module is further configured to: receive, by the network side, signaling for indicating a PHICH duration, and indicating a PHICH group number related parameter.

The signaling of N, the parameter indicating the number of PHICH groups, and at least one of the bitmaps, the ePHICH transmission candidate time-frequency resource indicated by the terminal.

63. The terminal according to claim 61, wherein the receiving module is further configured to: The receiving network side is used to indicate that the PRB resource that can be used for ePDCCH transmission or can be used for ePDCCH blind detection determines the PRB resource that can be used for the ePHICH transmission;

64. The terminal according to claim 61 or 63, wherein

65. The terminal of claim 61, wherein

The processing module is configured to: in each of the ePHICH transmission candidate resources, use an eREG with an eREG index satisfying wmodg = i for ePHICH transmission; wherein: ρ is an integer greater than 1 and less than 16, and n represents an eREG cable

Lead

66. The terminal of claim 65, wherein

, then the value,

67. The terminal of claim 61, wherein

The processing module is configured to: in each of the ePHICH transmission candidate resources, use an eREG that is satisfied by the eREG index to be used for ePHICH transmission;

Where: ρ' is an integer greater than 1 and less than 16, · Ε [0,ΐ,...,β' - 1] , "is an eREG index

The terminal according to claim 67, wherein the processing module is configured to: if it is determined that the demand for the ePHICH resource exceeds,

Q'

The demand for resources; where, 'is a natural number.

69. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resources into one or more groups based on the eREG, where each group of ePHICH time-frequency resources are in an eREG intra-location position pair from more than one PRB The composition of RE is equal.

70. The terminal of claim 61, wherein

71. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resources into more than one group based on the eREG, where each group of ePHICH time-frequency resources is composed of one eREG.

72. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups according to an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is peer-to-peer from more than one PRB NZP-CSI-RS resource composition.

73. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources are different from one or more PRBs The location of the NZP-CSI-RS resource composition.

74. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on an NZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by one or more candidates in a single ePHICH The composition of the NZP-CSI-RS resources.

75. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is peer-to-peer from more than one PRB ZP-CSI-RS resource composition.

76. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources are different from one or more PRBs. The location of the ZP-CSI-RS resources constitutes.

77. The terminal of claim 61, wherein

The processing module is configured to: divide the ePHICH transmission candidate time-frequency resource into one or more groups based on a ZP-CSI-RS resource, where each group of ePHICH time-frequency resources is transmitted by one or more candidates in a single ePHICH The composition of the ZP-CSI-RS resources.

78. The terminal of claim 61, wherein

The orthogonal sequence is an orthogonal mask sequence, and the length of the orthogonal mask sequence is 2 or 4 or 8 or the number of REs included in each ePHICH time-frequency resource group on a single PRB.

79. The terminal according to claim 61 or 78, wherein

The terminal according to claim 61, wherein the receiving module is configured to: determine, by one of the following manners, an ePHICH time-frequency resource group and/or orthogonal sequence information allocated to the network side: by receiving high-layer signaling And a minimum PUB index of the corresponding PUSCH and at least one of the 3-bit control signaling used to indicate the cyclic shift value of the PUSCH DMRS in the physical layer downlink control signaling; or