WO2012163165A1

WO2012163165A1 - Method, system and apparatus for sending and receiving uplink feedback information

Info

Publication number: WO2012163165A1
Application number: PCT/CN2012/073217
Authority: WO
Inventors: 林亚男; 沈祖康; 赵锐; 潘学明
Original assignee: 电信科学技术研究院
Priority date: 2011-06-01
Filing date: 2012-03-29
Publication date: 2012-12-06
Also published as: CN102215094A; CN102215094B

Abstract

The present invention relates to the technical field of wireless communications. Disclosed are a method, a system and an apparatus for sending and receiving uplink feedback information, which are used to solve the problem of how a terminal transmits uplink feedback information corresponding to an enhanced physical downlink control channel (PDCCH). In the present invention, a terminal receives an enhanced PDCCH on a downlink subframe, the enhanced PDCCH being located in a data area of the downlink subframe; the terminal determines, according to a preset mapping rule, a resource location of a corresponding physical uplink control channel (PUCCH) in an uplink subframe of the enhanced PDCCH; and the terminal sends, at the resource location of the PUCCH in the uplink subframe, uplink feedback information corresponding to the enhanced PDCCH to a base station. With the present invention, the terminal can transmit uplink feedback information corresponding to an enhanced PDCCH.

Description

Method, system and device for transmitting and receiving uplink feedback information The present application claims Chinese patent application filed on June 1, 2011, the Chinese Patent Office, the application number is 201110146641.4, and the invention name is the uplink feedback information transmitting and receiving method, system and device. The present invention relates to the field of wireless communications, and in particular, to a method, system and device for transmitting and receiving uplink feedback information. BACKGROUND OF THE INVENTION In Long Term Evolution, In the LTE system, the physical downlink control channel (PDCCH) is transmitted in the control region of the radio subframe, and the physical downlink shared channel (PDSCH) is transmitted in the data region of the radio subframe. The multiplexing relationship of Time Division Multiplexing (TDM) is formed with the PDSCH, as shown in Figure 1. The PDCCH is transmitted through the first N orthogonal frequency division multiplexing (OFDM) symbols of one downlink subframe. , where N is possible 1, 2, 3 or 4, and N=4 is only allowed in systems with a system bandwidth of 1.4MHz.

The Long Term Evolution (LTE-Advanced) system is undergoing evolutionary research into Coordinated Multiple Point (COMP) and enhanced multi-user multiple input and output (Mudi-User-MIMO, MU-MIMO) transmission schemes. A possible scenario of the COMP is that a macro base station and a plurality of distributed remote radio nodes (RRHs) logically form a cell, and the coverage of the cell and the number of users accessed are larger than the original one. The LTE system has greatly increased. At the same time, the increased use of enhanced MU-MIMO has led to a significant increase in the number of users serving in the area. Therefore, higher requirements are placed on the capacity of the PDCCH, and the existing LTE PDCCH design cannot meet the requirements.

To solve the problem of PDCCH resource limitation and insufficient capacity as mentioned above, one solution is to transmit an enhanced PDCCH (Enhanced PDCCH) in units of physical resource blocks (PRBs) in a PDSCH region in one downlink subframe, such as As shown in FIG. 2, the conventional PDCCH is called a legacy PDCCH.

Currently, for the enhanced PDCCH structure, there is a search space design scheme based on an Enhanced PDCCH cluster, that is, multiple consecutive PRB pairs are classified as an Enhanced PDCCH cluster, as shown in FIG. 3 and FIG. A PDCCH of a terminal (UE) can only be transmitted in one Enhanced PDCCH cluster. An PDCCH of one UE may be transmitted in one Enhanced PDCCH cluster, and a PDCCH of multiple UEs may also be transmitted. The UE transmits the PRB position occupied by the PDCCH in an Enhanced PDCCH cluster. The level of aggregation is related.

For the downlink dynamic scheduling (DL grant) in the LTE system, the physical uplink control channel (PUCCH) resource used by the corresponding acknowledgement/negative acknowledgement (ACK/NACK) feedback information is based on the resource number and high-level configuration occupied by the PDCCH. The parameters are determined. In this way, the reserved PUCCH resources in the system can be effectively reduced, that is, the maximum number of reserved dynamic PUCCH resources is equal to the maximum number of downlink PDCCHs, and does not need to be reserved for the maximum number of users in the cell, usually PDCCH. The maximum number is much smaller than the number of users in the cell.

In the process of implementing the present invention, the inventors have found that the following technical problems exist in the prior art:

In the prior art, in the case of using the enhanced PDCCH for downlink dynamic scheduling, how does the UE determine the PUCCH resource used for transmitting the ACK/NACK feedback information corresponding to the downlink dynamic scheduling, and currently there is no specific implementation scheme, and thus the UE is further implemented. The ACK/NACK feedback information corresponding to the enhanced PDCCH cannot be transmitted. SUMMARY OF THE INVENTION The embodiments of the present invention provide a method and a device for transmitting uplink feedback information, which are used to solve the problem of how a terminal transmits uplink feedback information corresponding to an enhanced PDCCH.

An uplink feedback information sending method, the method comprising:

The terminal receives an enhanced physical downlink control channel PDCCH in a downlink subframe, where the enhanced PDCCH is located in a data region of the downlink subframe;

Determining, by the terminal, the corresponding physical uplink control channel PUCCH resource location of the enhanced PDCCH in the uplink subframe according to a preset mapping rule;

The terminal sends the uplink feedback information corresponding to the enhanced PDCCH to the base station at the PUCCH resource location in the uplink subframe.

An uplink feedback information sending device, the device comprising:

a downlink receiving unit, configured to receive an enhanced physical downlink control channel PDCCH in a downlink subframe, where the enhanced PDCCH is located in a data region of the downlink subframe;

a location determining unit, configured to determine, according to a preset mapping rule, a physical uplink control channel PUCCH resource location of the enhanced PDCCH in an uplink subframe;

And an uplink feedback unit, configured to send uplink feedback information corresponding to the enhanced PDCCH to the base station at the PUCCH resource location in the uplink subframe.

In this solution, the terminal receives the enhanced PDCCH in the downlink subframe, where the enhanced PDCCH is located in the data region of the downlink subframe, and determines the corresponding PUCCH resource location in the uplink subframe according to the preset mapping rule. And transmitting the uplink feedback information corresponding to the enhanced PDCCH to the base station at the location of the PUCCH resource in the uplink subframe. It can be seen that, by using the solution, the terminal can determine that the enhanced PDCCH corresponds in the uplink subframe. The PUCCH resource location may further send the uplink feedback information corresponding to the enhanced PDCCH to the base station at the location of the PUCCH resource, and solve the problem of how the terminal transmits the uplink feedback information corresponding to the enhanced PDCCH.

The embodiment of the invention further provides a method, a system and a device for receiving an uplink feedback information, which are used to solve the problem of how the terminal transmits the uplink feedback information corresponding to the enhanced PDCCH.

A method for receiving uplink feedback information, the method comprising:

Determining, by the base station, the enhanced physical downlink control channel PDCCH in the downlink subframe, corresponding to the physical uplink control channel PUCCH resource location in the uplink subframe, according to a preset mapping rule;

The base station receives the uplink feedback information sent by the terminal at the PUCCH resource location in the uplink subframe.

An uplink feedback information receiving device, the device comprising:

a location determining unit, configured to determine, according to a preset mapping rule, an enhanced physical downlink control channel PDCCH in a downlink subframe, a corresponding physical uplink control channel PUCCH resource location in the uplink subframe;

And a feedback receiving unit, configured to receive uplink feedback information sent by the terminal at the PUCCH resource location in the uplink subframe.

A wireless communication system, the system comprising:

The terminal is configured to receive, in a downlink subframe, an enhanced physical downlink control channel PDCCH, where the enhanced PDCCH is located in a data region of the downlink subframe, and determine, according to a preset mapping rule, that the enhanced PDCCH is corresponding in the uplink subframe. a physical uplink control channel (PUCCH) resource location; the uplink feedback information corresponding to the enhanced PDCCH is sent to the base station at the PUCCH resource location in the uplink subframe;

a base station, configured to determine, according to a preset mapping rule, an enhanced PDCCH in a downlink subframe, where a corresponding PUCCH resource location is in an uplink subframe, and receive, in the uplink subframe, an uplink feedback sent by the terminal. information.

In this solution, the base station determines, according to a preset mapping rule, the corresponding PUCCH resource location in the uplink subframe of the enhanced PDCCH in the downlink subframe, and receives the uplink feedback information sent by the terminal at the PUCCH resource location. It can be seen that, by using the solution, the base station can determine the location of the corresponding PUCCH resource in the uplink subframe of the enhanced PDCCH, and can further receive the uplink feedback information sent by the terminal at the location of the PUCCH resource, and solve how the base station receives the enhanced PDCCH corresponding to the PDCCH. The problem of upstream feedback information.

The embodiment of the present invention further provides a resource reservation method and device, which are used to solve the problem of how to reserve the PUCCH resource corresponding to the enhanced PDCCH.

A resource reservation method, the method comprising:

Determining, by the base station, the number of PUCCH resources included in the PUCCH resource area of the physical uplink control channel corresponding to the PDCCH;

The base station reserves, in the uplink subframe, the PUCCH resource corresponding to the enhanced PDCCH in the downlink subframe according to the determination result. A resource reservation device, the device includes:

a determining unit, configured to determine an amount of PUCCH resources included in a physical uplink control channel PUCCH resource region corresponding to an enhanced physical downlink control channel PDCCH;

And a reserved unit, configured to reserve, in the uplink subframe, the PUCCH resource corresponding to the enhanced PDCCH in the downlink subframe according to the determining result.

In this solution, the base station reserves the PUCCH resource corresponding to the enhanced PDCCH for the downlink subframe in the uplink subframe according to the number of the PUCCH resources included in the PUCCH resource region corresponding to the enhanced PDCCH, thereby solving the problem of how to reserve the enhanced PDCCH. The problem with the corresponding PUCCH resource. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a multiplexing relationship between a control region and a data region in a downlink subframe in the prior art; FIG. 2 is a schematic diagram of an enhanced PDCCH structure in the prior art;

3 is a schematic diagram of a search space of an enhanced PDCCH in the prior art;

4 is a schematic diagram of resource clusters for enhancing a PDCCH in the prior art;

FIG. 5 is a schematic flowchart of a method according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of another method according to an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart of still another method according to an embodiment of the present disclosure;

8A is a schematic diagram of resource mapping in an embodiment of the present invention;

FIG. 8B is a schematic diagram of a resource mapping effect according to an embodiment of the present invention; FIG.

FIG. 8C is a schematic diagram of another resource mapping effect according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of a system according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a device according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another device according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of another apparatus according to an embodiment of the present invention. detailed description

In order to solve the problem of how the terminal transmits the uplink feedback information corresponding to the enhanced PDCCH, the embodiment of the present invention provides an uplink feedback information sending method. In this method, after receiving the enhanced PDCCH in the downlink subframe, the terminal follows the preset mapping. The rule determines the corresponding PUCCH resource location of the enhanced PDCCH in the uplink subframe, and sends the uplink feedback information corresponding to the enhanced PDCCH to the base station at the PUCCH resource location.

Referring to FIG. 5, an uplink feedback information sending method provided by an embodiment of the present invention includes the following steps:

Step 50: The terminal receives an enhanced PDCCH in a downlink subframe, where the enhanced PDCCH is located in a downlink subframe. According to the region;

Step 51: The terminal determines, according to a preset mapping rule, the corresponding PUCCH resource location in the uplink subframe of the enhanced PDCCH;

Step 52: The terminal sends the uplink feedback information corresponding to the enhanced PDCCH to the base station by using the resource at the PUCCH resource location in the uplink subframe.

The number of the downlink subframe may be n-ki, the number of the uplink subframe is n, for a frequency division duplex (FDD) system, i=0, ki=4; for a time division duplex (TDD) system, i and The value of 13⁄4 is determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213;

In step 51, the terminal determines, according to a preset mapping rule, the location of the PUCCH resource corresponding to the enhanced PDCCH in the uplink subframe, which may be:

Determining, by the terminal, the enhanced PDCCH in an uplink subframe according to a physical resource block (PRB) number or a resource cluster number in an enhanced PDCCH resource cluster occupied by downlink scheduling signaling actually received in the downlink subframe η-13⁄4 The corresponding PUCCH resource number in n. The specific implementation is illustrated below:

example 1 :

For the FDD system, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, the PUCCH resource number corresponding to the enhanced PDCCH in the uplink subframe n is determined according to the following formula: “^^^: — n ^(r> = Y + N ^(r> · where X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received by the terminal in the downlink subframe n-lq, _p ^ ^ from the network side The device (eg base station) is obtained or calculated according to the following formula:

The first physical resource block in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe η-13⁄4 that can be used to transmit the enhanced PDCCH, this parameter It can be configured by the high-layer signaling; the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system, the parameter can be configured by the high-layer signaling; the brain is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, which can be Order configuration.

Example 2:

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, press Determining the corresponding PUCCH resource number in the uplink subframe n of the enhanced PDCCH according to the following formula 2 or formula 3

(1)

■PUCCH

/\^一·^ ¹ — V ^ γ ΛΓ ) ·

厶, I. "ePUCCH - AA _ePDCCH τη τι v _ePUC CH ,

/ ^ : · — _n Y Λ/Ό) ·

" , - " ePUCCH ~ ⁿ _offset ¹ ePDCCH ^τ ^ ePDCCH ^ ^I ePUCCH,

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and _{Χρη π is} obtained from the network side device (for example, the base station) or calculated according to the following formula. : γ W e • PPDDCCCCHH ,, RRBB― N ^{1 v} _t ePDCCH , offset

ePUCCH

"^min cluster

Is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe n-l3⁄4;

-DL, grant

It is obtained from the network side device or calculated according to the following formula:

^ mm cluster nePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe η-13⁄4 that can be used to transmit the enhanced PDCCH, this parameter may be configured by higher layer signaling; ^N cluster minimum bandwidth resources within the system to enhance the spirit of the PDCCH, the parameters may be configured by higher layer signaling; starting position for the system corresponding to the PDCCH enhanced PUCCH resource region, it may be made of high Signaling configuration; is the offset value of the terminal in the resource cluster of the enhanced PDCCH, " = 0, 1, ..., Κ _ 1 ;

^7Vrb is the downlink total bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe η- ^13⁄4 ; Κ is an integer greater than 1.

Example 3:

For a TDD system, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, press

(1) Determine the corresponding PUCCH resource number of the enhanced PDCCH in the uplink subframe n as follows: ^^ff : Equation 4: n _CCH = (M - i - ψ Y _ePDCCH + ePDCCH

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula: γ ⁿ ePDCCH , RB ~ ^ ePDCCH , offset

ePUCCH

^mi cluster

Y _e is the total number of PDCCH resource clusters occupied by the PDCCH enhanced in the downlink subframe n-l3⁄4, Y _e DL, grant

Is obtained from the network side device or calculated according to the following formula,

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePDccH t is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used to transmit the enhanced PDCCH, and the parameter can be configured by higher layer signaling; The minimum bandwidth of the resource cluster of the enhanced PDCCH, the parameter may be configured by the high layer signaling; the ^{N CCH} is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, and may be configured by higher layer signaling; ^V «« is the downlink The sub-frame η-13⁄4 can be used to transmit the total downlink bandwidth of the downlink dynamic scheduling signaling, and the parameter can be configured by the high layer signaling; 0 ≤ ζ ≤ Μ _ 1.

Example 4:

For the TDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, the corresponding PUCCH resource number of the enhanced PDCCH in the uplink subframe n is determined according to the following formula 5 or formula 6.

K (1)

■PUCCH

,(1)

■PUCCH = (M—-1) * Y _ePDCCH + K * X _ePDCCH + n _offset + N ■(i)

ePUCCH

n -e(PUCCH , i ~ ( ^ - ί — Υ ) * Κ + n _o jf _set ) * Y _e PDCCH + X ePDCCH + ^ ePUCCH '

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _emrrr† is obtained from the network side device or calculated according to the following formula: l ePDCCH , offset

Y _pnrrH is the total number of PDCCH resource clusters occupied by the PDCCH enhanced in the downlink subframe n-l3, I ePUCCH

DL, grant

N,

It is obtained from the network side device or calculated according to the following formula: ePUCCH

Cluster

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePoccH t is available for transmission enhancement in the downlink subframe n-ki The number of the starting PRB in the resource region of the PDCCH, which may be configured by higher layer signaling; the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system, the parameter may be configured by higher layer signaling; ^{N CCH} is enhanced in the system The starting position of the PUCCH resource region corresponding to the PDCCH may be configured by higher layer signaling; ^V «« is the downlink total bandwidth that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe η-13⁄4, and ^η is enhanced by the terminal. The offset value in the resource cluster of the PDCCH, " = 0, 1, . · ·, _ _ 1 ; Κ is an integer greater than 1, which can be configured by higher layer signaling;

0 ≤ ζ ≤ Μ _ 1.

Correspondingly, in step 52, the terminal sends the uplink feedback information corresponding to the enhanced PDCCH to the base station in the PUCCH resource corresponding to the determined PUCCH resource number in the uplink subframe η.

In order to solve the problem of how the base station receives the uplink feedback information corresponding to the enhanced PDCCH, the embodiment of the present invention provides an uplink feedback information receiving method. In the method, the base station determines, according to a preset mapping rule, the enhanced in the downlink subframe. The PDCCH is in the uplink subframe corresponding to the PUCCH resource location, and receives the uplink feedback information sent by the terminal at the PUCCH resource location.

Referring to FIG. 6, the uplink feedback information receiving method provided by the embodiment of the present invention includes the following steps:

Step 60: The base station determines, according to a preset mapping rule, that the enhanced PDCCH in the downlink subframe is in a corresponding PUCCH resource position in the uplink subframe.

Step 61: The base station receives the uplink feedback information sent by the terminal at the PUCCH resource location in the uplink subframe.

The number of the downlink subframe may be n-ki, the number of the uplink subframe is n, and for the FDD system, i=0, ki=4; for the TDD system, the values of i and 13⁄4 are according to the LTE system communication protocol. Table 10.1.3.1-1 of TS36.213 is determined; in step 60, the base station determines, according to a preset mapping rule, an PDCCH resource location corresponding to the enhanced PDCCH in the uplink subframe in the downlink subframe, and the specific implementation may be as follows: :

Determining, by the base station, the enhanced PDCCH in the downlink subframe η-13⁄4 in the uplink subframe according to the PRB number or the resource cluster number in the enhanced PDCCH resource cluster occupied by the downlink scheduling signaling actually transmitted in the downlink subframe η-13⁄4 The corresponding PUCCH resource number in n. The following is an example of a specific implementation:

example 1 :

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most one downlink scheduling signaling, the base station determines the corresponding PUCCH resource in the uplink subframe n of the enhanced PDCCH in the downlink subframe n-ki according to the following formula 1. Number "^^^ _:

— — — _ _μ N ^V) · The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _emrrr† is obtained from the network side device or calculated according to the following formula:

The nePDCCH is the first physical resource block in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe η-13⁄4 that can be used to transmit the enhanced PDCCH, The parameter can be configured by the high layer signaling; the ^N is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system, and the parameter can be configured by the high layer signaling; the brain is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, Configured by high layer signaling.

Example 2:

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, the base station determines, according to the following formula 2 or formula 3, that the enhanced PDCCH in the downlink subframe n-ki corresponds in the uplink subframe n. of

PUCCH resource number

/ ^"一.. _n ^y > — * γ ι _η ΛΓΟ) ·

A, a _ A Trt _ePUC cH ,

/ ^ "=. -N * Y A- Y 4- · wherein, X _ePUCCH in downlink subframe n-l¾ actually received the downlink scheduling signaling PDCCH resource occupied by cluster resource cluster _number, Χ. Ρη _π is obtained from the network side device or calculated according to the following formula:

Is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe n-l3⁄4; Γ is obtained from the network side device or calculated according to the following formula,

nePDccn is the first physical resource block in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe η-13⁄4 that can be used to transmit the enhanced PDCCH, The parameters can be configured by higher layer signaling; -a is the minimum bandwidth of the resource cluster of the enhanced PDCCH within the system, which can be determined by a high layer letter Let the configuration be the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, which may be configured by higher layer signaling; for the offset value of the terminal in the resource cluster of the enhanced PDCCH, " = 0, 1, . ..,Κ _ 1 ;

^7Vrb is the downlink total bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe η- ^13⁄4 ; Κ is an integer greater than 1, and can be configured by higher layer signaling.

Example 3:

For the TDD system, if the resource cluster of each enhanced PDCCH carries at most one downlink scheduling signaling, the base station determines the corresponding PUCCH resource number in the uplink subframe n of the enhanced PDCCH in the downlink subframe n-ki according to the following formula 4: "^^^ _:

Formula IV. ― 0^ - - 1) * Y + X

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula:

Is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe n-l3⁄4; Γ is obtained from the network side device or calculated according to the following formula:

Example 4:

For a TDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, the base station determines, according to Equation 5 or Equation 6 below, that the enhanced PDCCH in the downlink subframe n-ki corresponds in the uplink subframe n. PUCCH resource number n _CCH : Equation 5: r ^l ePUCCH,i \ ^{1V1 L} J 丄ePDCCH τ 1 , ^ ePDCCH ^τ "offset ^ ^l ePUCCH '

Formula 6:

nePUCCH,i ~ (^—ί—Υ)*Κ + n _o jf _set ) * Y _e PDCCH + X ePDCCH + ^ ePUCCH '

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and Χ _{ρη π} is obtained from the network side device or calculated according to the following formula: γ ^ e 'PPDDCCCCHH ,,RRBB ― ^{1 v} ePDCCH , offset

ePUCCH

Cluster

-DL, grant

^ mm cluster M is the total number of downlink subframes for ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actual downlink scheduling signaling, or the actual transmission The number of the first PRB occupied by the downlink scheduling signaling; ^N 2 is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used for transmitting the enhanced PDCCH, and the parameter can be configured by higher layer signaling; For the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system, the parameter may be configured by higher layer signaling; ^{N CCH} is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, and may be configured by higher layer signaling; ^V «» The downlink total bandwidth that can be used for transmitting the downlink dynamic scheduling signaling in the downlink subframe η-13⁄4; and the offset value of the terminal in the resource cluster of the enhanced PDCCH, "=0, 1, .... Χ_1; Κ is an integer greater than 1, which can be signaled by high-level signaling 0 ≤ ≤ _1.

Correspondingly, in step 61, the base station receives the uplink feedback information sent by the terminal on the PUCCH resource corresponding to the determined PUCCH resource number in the uplink subframe n.

In the present invention, 0 ≤ n _{ePDCCH RB} ≤ ◦ γ 2 - Kl

value.

Referring to FIG. 7, an embodiment of the present invention further provides a resource reservation method, including the following steps:

Step 70: The base station determines the number of PUCCH resources included in the PUCCH resource region corresponding to the enhanced PDCCH.

Step 71: The base station reserves, in the uplink subframe, the enhanced PDCCH corresponding to the downlink subframe according to the determination result. PUCCH resources.

The number of the downlink subframe may be n-ki, the number of the uplink subframe is n, and for the FDD system, i=0, ki=4; for the TDD system, the values of i and 13⁄4 are according to the LTE system communication protocol. Table 10.1.3.1-1 of TS36.213 is determined.

Preferably, the PUCCH resources reserved for one downlink subframe η-13⁄4 in the uplink subframe n are consecutively arranged.

Preferably, the number of PUCCH resources reserved for one downlink subframe η-13⁄4 in the uplink subframe n is at least

Where K is a positive integer, indicating the maximum number of downlink scheduling signaling carried in the resource cluster of each enhanced PDCCH; ^Vrb is the downlink total bandwidth that can be used for transmitting downlink scheduling signaling in the downlink subframe η-13⁄4; The minimum bandwidth of a resource cluster within an enhanced PDCCH.

Preferably, for the TDD system, the PUCCH resources reserved for the plurality of downlink subframes η-13⁄4 in the uplink subframe n are consecutively arranged. As shown in the embodiment of FIG. 8A, the ACK/NACK feedback of the downlink subframe is transmitted in the uplink subframe, = 0 1 2, · · · For the _FDD system, i = ₀ , for the TDD system, i and The value is related to the uplink and downlink configuration and the specific location of the uplink subframe n. For details, refer to Table 10.1.3.1-1 of TS36.213. The system presets a mapping rule, so that each resource cluster corresponds to K PUCCH resources and different resource clusters. The corresponding PUCCH resources are different, where K is the maximum number of DL grants that can be carried in a cluster, and K > 1 , the number of PUCCH resources corresponding to each downlink subframe

K - ,

The amount is not greater than. V«« is the total downlink bandwidth that can be used to transmit the DL grant in the corresponding downlink subframe, and the unit is RB, which is the downlink bandwidth, and the unit is RB.

^N Spirit - is the minimum bandwidth of the enhanced PDCCH resource cluster in the system, and the unit is RB. If the system supports multiple cluster sizes, each cluster size can be an integer multiple.

The method for determining the PUCCH resource number according to the above formula 2 and formula 5 may be considered as dividing the entire PUCCH resource into '"" blocks, each block containing K PUCCH resources, as shown in FIG. 8B; determining according to formula 3 and formula 6 above. The PUCCH resource numbering method can be considered as dividing the entire PUCCH resource into K blocks, and each block contains ^ puccH resources, as shown in FIG. 8C. ePDCCH refers to enhanced PDCCH in each figure Referring to FIG. 9, an embodiment of the present invention further provides a wireless communication system, where the system includes:

The terminal 90 is configured to receive an enhanced PDCCH in a downlink subframe n-ki, where the enhanced PDCCH is located in a data region of a downlink subframe n-ki; for an FDD system, i=0, k _; =4; for a TDD system, i And the value of the OFDM system is determined according to the table 10.1.3.1-1 of the LTE system communication protocol TS36.213. The physical uplink control channel PUCCH resource corresponding to the enhanced PDCCH in the uplink subframe n is determined according to a preset mapping rule. The uplink feedback information corresponding to the enhanced PDCCH is sent to the base station at the location of the PUCCH resource in the uplink subframe n;

The base station 91 is configured to determine, according to a preset mapping rule, that the enhanced PDCCH in the downlink subframe n-13 is in a corresponding PUCCH resource position in the uplink subframe n; in the PUCCH resource location in the uplink subframe n Receive uplink feedback information sent by the terminal.

Referring to FIG. 10, an embodiment of the present invention further provides an uplink feedback information sending device, where the device includes: a downlink receiving unit 101, configured to receive an enhanced PDCCH in a downlink subframe n-ki, where the enhanced PDCCH is located in a downlink subframe n -ki data area; for FDD systems, i=0, k _; =4; For TDD systems, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213;

The location determining unit 102 is configured to determine, according to a preset mapping rule, a physical uplink control channel PUCCH resource location of the enhanced PDCCH in the uplink subframe n;

The uplink feedback unit 103 is configured to send the uplink feedback information corresponding to the enhanced PDCCH to the base station at the PUCCH resource location in the uplink subframe n.

Further, the location determining unit 102 is configured to:

Determining the corresponding PUCCH resource in the uplink subframe n of the enhanced PDCCH according to the physical resource block PRB number or the resource cluster number in the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe η-13⁄4 Numbering.

Further, the location determining unit 102 is configured to:

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most one downlink scheduling signaling, determine the corresponding PUCCH resource number of the enhanced PDCCH in the uplink subframe n according to the following formula: “^^^: — n ^(r> = Y + N ^(r> ·

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _emrrr† is obtained from the network side device or calculated according to the following formula:

The first physical resource block in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission A first number of PRB PRB number, or actual transmission of downlink scheduling signaling occupied; ^N ePoccH, a downlink subframe n-ki may be used in the transmission resource region starting PRB enhanced number of PDCCH; ^N The ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system is configured by higher layer signaling.

Further, the location determining unit 102 is configured to: for an FDD system, if each enhanced

The resource cluster of the PDCCH carries at most K downlink scheduling signaling, and the corresponding PUCCH resource number of the enhanced PDCCH in the uplink subframe n is determined according to the following formula 2 or formula 3 (1)

■PUCCH

/厶,一一·. ^ ¹ — ^ γ Λ ) ·

"ePUCCH — AA _ePDCCH τη τι v _ePUC CH ,

/ : · — _n Y Λ/Ό) ·

" , - " ePUCCH ~ ⁿ _offset ¹ ePDCCH ^τ ^ ePDCCH ^ ^I ePUCCH,

The X _ePUCCH is a resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, Χ. _{Ρη π} is obtained from the network side device or calculated according to the following formula: γ W e • PPDDCCCCHH ,, RRBB― N ^{1 v} _t ePDCCH , offset

ePUCCH

"^min cluster

-DL, grant

A first number of PRB PRB number, or actual transmission of downlink scheduling signaling occupied; ^N ePoccH, a downlink subframe n-ki may be used in the transmission resource region starting PRB enhanced number of PDCCH; ^N The ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system is configured by higher layer signaling; and the terminal is within the resource cluster of the enhanced PDCCH. The offset value, n _offset = 0, 1, ..., ^ - 1 ; ^V «« is the downlink total bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe η-13⁄4; Κ is an integer greater than 1.

Further, the location determining unit 102 is configured to:

For a TDD system, if each enhanced PDCCH resource cluster carries at most one downlink scheduling

Signaling, determining the corresponding PUCCH resource in the uplink subframe n of the enhanced PDCCH according to the following formula 4

(1) .

'PUCCH. Formula IV. ^ePUCCH ― - - 1) * Y _e pDCCH + X ePDCCH + ^ePUCCH ,

ePUCCH

^mi cluster

Y _e ePUCCH is the total number of PDCCH resource clusters occupied by the strong PDCCH in the downlink subframe n-l3⁄4, I ± ePUCCH

. TDL, grant

It is obtained from the network side device or calculated according to the following formula: Y _ePUCCH

Cluster

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePDccH t is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used to transmit the enhanced PDCCH; ^N - ^duster is the resource of the enhanced PDCCH in the system The minimum bandwidth of the cluster; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, configured by higher layer signaling; ^V «« is the downlink total bandwidth that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe η-13⁄4 .

Further, the location determining unit 102 is configured to:

"ePUCCH .

Formula 5:

''ePUCCH , i \ ^{1 V1} ePDCCH ^ ePDCCH ^τ "offset ^ ^l ePUCCH '

Formula 6:

n ePUCCH ~ ( ^ - ί — Υ ) * Κ + n _o jf _set ) * Y _e PDCCH + X ePDCCH + PUCCH '

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula: γ ^ePDCCH , RB ~ ^ ePDCCH , offset

ePUCCH

^mi cluster

Y _e is the total number of PDCCH resource clusters occupied by the PDCCH enhanced in the downlink subframe n-l3⁄4, Y _e It is obtained from the network side device or calculated according to the following formula: ^{1 V d}

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePDccH t is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used to transmit the enhanced PDCCH; ^N - ^duster is the resource of the enhanced PDCCH in the system The minimum bandwidth of the cluster; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system is configured by the high layer signaling; ^ is the downlink total bandwidth that can be used for transmitting the downlink dynamic scheduling signaling in the downlink subframe η-13⁄4, The offset value of the terminal in the resource cluster of the enhanced PDCCH, " = 0, 1, ..., Κ _ 1 ; Κ is an integer greater than 1.

Further, the uplink feedback unit 103 is configured to:

The uplink feedback information corresponding to the enhanced PDCCH is transmitted to the base station on the PUCCH resource corresponding to the PUCCH resource number in the uplink subframe η.

Referring to FIG. 11, an embodiment of the present invention further provides an uplink feedback information receiving device, where the device includes: a location determining unit 111, configured to determine, according to a preset mapping rule, an enhanced PDCCH in a downlink subframe η-13⁄4 The corresponding PUCCH resource position in the uplink subframe η; for the FDD system, i=0, k _; = 4; For the TDD system, the values of i and 13⁄4 are according to Table 10.1.3.1 of the Long Term Evolution (LTE) system communication protocol TS36.213- 1 determined;

The feedback receiving unit 112 is configured to receive uplink feedback information sent by the terminal at the PUCCH resource location in the uplink subframe n.

Further, the location determining unit 111 is configured to:

Determining the enhanced PDCCH in the downlink subframe η-13⁄4 in the uplink subframe according to the physical resource block PRB number or the resource cluster number in the PDCCH resource cluster occupied by the downlink scheduling signaling actually transmitted in the downlink subframe η-13⁄4 The corresponding PUCCH resource number.

Further, the location determining unit 111 is configured to:

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most one downlink scheduling signaling, determine the corresponding PUCCH resource number in the uplink subframe n of the enhanced PDCCH in the downlink subframe n-ki according to the following formula 1.

— n ^(r> = Y + N ^(r> ·

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula: Y ⁿ ePDCCH , RB ~ ^ ePDCCH , offset

ePUCCH

^mi cluster

"ePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe n-ki that can be used to transmit the enhanced PDCCH; ^N — ^{The duster} is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system is configured by higher layer signaling.

Further, the location determining unit 111 is configured to:

For the FDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, the corresponding PDCCH in the downlink subframe n-ki is determined in the uplink subframe n according to the following formula 2 or formula 3 PUCCH resource number n _CCH :

/ ^"一. y> — V * y , _η ΛΓΟ) ·

A, one. ''ePUCCH _ A Trt _ePUC cH ,

/ ^" = . —n *Y A- Y

^Λ "ePUCCH ~ ⁿ _oJfitt ¹ ePDCCH ^T ^ ePDCCH ^T -' ^v ePUCCH '

ePUCCH

^mm cluster

Y _e ePUCCH is the total number of 4 PDCCH resource clusters occupied by the strong PDCCH in the downlink subframe n n-l3⁄4, I ± ePUCCH

. TDL, grant

"^min_cluster nePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe n-ki that can be used to transmit the enhanced PDCCH; ^N — ^{The duster} is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, configured by the high layer signaling; is the bias of the terminal in the resource cluster of the enhanced PDCCH The value of shift, n _offset = 0, 1, ..., ^ - 1 ; ^V «« is the total downlink bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe η-13⁄4; Κ is an integer greater than one. Further, the location determining unit 111 is configured to:

For the TDD system, if the resource cluster of each enhanced PDCCH carries at most one downlink scheduling signaling, the enhanced PDCCH in the downlink subframe n-ki is determined according to the following formula 4: the corresponding PUCCH resource in the uplink subframe ⁿ e ^< PUCCH '·

Formula IV. ⁿ _e pucCH ,i _ - - 1) * Y _e pDCCH + X ePDCCH + ^ ePUCCH '

ePUCCH

^mi cluster

Y _e ePUCCH is the total number of 4 PDCCH resource clusters occupied by the strong PDCCH in the downlink subframe n-l3⁄4, I ± ePUCCH

. TDL, grant

Cluster

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePDccH t is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used to transmit the enhanced PDCCH; ^N - ^duster is the resource of the enhanced PDCCH in the system The minimum bandwidth of the cluster; ^^^^ is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, configured by higher layer signaling; ^V «« is used for downlink downlink scheduling signaling in the downlink subframe η-13⁄4 The total downlink bandwidth.

Further, the location determining unit 111 is configured to:

For the TDD system, if the resource cluster of each enhanced PDCCH carries at most K downlink scheduling signaling, the corresponding enhanced PDCCH in the downlink subframe n-ki is determined in the uplink subframe n according to the following formula 5 or formula 6 PUCCH resource number n _CCH :

Formula 5:

''ePUCCH , i \ ^{1 V1 L} J ePDCCH τ 1 ^ ePDCCH ^τ "offset ^ ^l ePUCCH '

Formula 6:

The X _ePUCCH is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe n-l3⁄4, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula: γ

A

Y _e is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe n-l3⁄4, and I is obtained from the network side device or calculated according to the following formula: Y _ePUCCH

"^min—

M is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe n; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the downlink schedule of the actual transmission The number of the first PRB occupied by the signaling; ^N ePDccH t is the number of the starting PRB in the resource region of the downlink subframe _n - _ki that can be used to transmit the enhanced PDCCH; ^N - ^duster is the resource of the enhanced PDCCH in the system The minimum bandwidth of the cluster; the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system, configured by higher layer signaling; ^ is the downlink total bandwidth that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe η-13⁄4; The offset value of the terminal in the resource cluster of the enhanced PDCCH, " = 0, 1, ..., Κ _ 1 ; Κ is an integer greater than 1.

Further, the feedback receiving unit 112 is configured to:

The uplink feedback information sent by the terminal is received on the PUCCH resource corresponding to the PUCCH resource number in the uplink subframe η.

Referring to FIG. 12, an embodiment of the present invention provides a resource reservation device, where the device includes:

The quantity quantity determining unit 121 is configured to determine the number of PUCCH resources included in the physical uplink control channel PUCCH resource area corresponding to the enhanced physical downlink control channel PDCCH;

The resource reservation unit 122 is configured to reserve, in the uplink subframe n, the PUCCH resource corresponding to the enhanced PDCCH in the downlink subframe η-13⁄4 according to the determination result; for the frequency division duplex FDD system, i=0, k _; =4; For time division duplex TDD systems, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the Long Term Evolution (LTE) system communication protocol TS36.213.

Further, the resource reservation unit 122 continuously arranges PUCCH resources reserved for one downlink subframe η-13⁄4 in the uplink subframe n.

Further, the number of PUCCH resources reserved by the resource reservation unit 122 for one downlink subframe η-13⁄4 in the uplink subframe n is at least K · ——;

Min

Wherein, K is a positive integer representing the number of downlink scheduling signaling resources each enhanced cluster up to the PDCCH carried; ^Vrb downlink frame η-1¾ total bandwidth available for transmission of downlink signaling for scheduling downlink subframe; ^V ™ N_^ _teI "is the minimum bandwidth of a resource cluster of an enhanced PDCCH within the system. Further, for the TDD system, the resource reservation unit 122 continuously arranges PUCCH resources reserved for the plurality of downlink subframes n-ki in the uplink subframe n.

In summary, the beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, the terminal receives the enhanced PDCCH in the downlink subframe η-13⁄4, where the enhanced PDCCH is located in the data region of the downlink subframe η-13⁄4; determining the enhanced according to a preset mapping rule. The PDCCH is in the uplink subframe n corresponding to the PUCCH resource location, and the uplink feedback information corresponding to the enhanced PDCCH is sent to the base station at the PUCCH resource location in the uplink subframe n. It can be seen that, by using the solution, the terminal can determine the location of the corresponding PUCCH resource in the uplink subframe of the enhanced PDCCH, and can further send the uplink feedback information corresponding to the enhanced PDCCH to the base station at the location of the PUCCH resource, thereby solving how the terminal transmits the enhanced information. The problem of the uplink feedback information corresponding to the PDCCH.

In the solution provided by the embodiment of the present invention, the base station determines, according to a preset mapping rule, that the enhanced PDCCH in the downlink subframe n-13 is in a corresponding PUCCH resource position in the uplink subframe n, and receives the PUCCH resource location in the uplink subframe n. The uplink feedback information sent by the terminal. It can be seen that, by using the solution, the base station can determine the location of the corresponding PUCCH resource in the uplink subframe of the enhanced PDCCH, and can further receive the uplink feedback information sent by the terminal at the location of the PUCCH resource, and solve how the base station receives the enhanced PDCCH corresponding to the PDCCH. The problem of upstream feedback information.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although a preferred embodiment of the present invention has been described, one of ordinary skill in the art will be aware of the basic inventive Additional changes and modifications may be made to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, it is intended that the present invention cover the modifications and modifications of the inventions

Claims

Rights request

A method for transmitting uplink feedback information, the method comprising:

And transmitting, by the terminal, the uplink feedback information corresponding to the enhanced PDCCH to the base station at the PUCCH resource location in the uplink subframe.

The method according to claim 1, wherein the terminal determines, according to a preset mapping rule, that the enhanced PDCCH corresponds to a PUCCH resource location in an uplink subframe:

Determining, by the terminal, the corresponding PUCCH resource in the uplink subframe according to the physical resource block PRB number or the resource cluster number in the enhanced PDCCH resource cluster that is occupied by the downlink scheduling signaling that is actually received in the downlink subframe. Numbering.

The method according to claim 2, wherein, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, determining, according to the following formula 1, the enhanced PDCCH corresponding in the uplink subframe PUCCH resource number "^^^ _:

— — — Y 丁 N ^V) · where is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and X is obtained from the network side device or calculated according to the following formula:

NePDccn is the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actual downlink scheduling signaling, or the number of the first PRB occupied by the actually transmitted downlink scheduling signaling; ^N ePoccH, which is the downlink The number of the starting PRB in the resource region that can be used to transmit the enhanced PDCCH in the subframe; ^N - ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; ^N ^uccH is the PUCCH resource region corresponding to the enhanced PDCCH in the system starting point.

The method according to claim 2, wherein, if each enhanced PDCCH resource cluster carries at most K downlink scheduling signaling, determining the enhanced PDCCH in an uplink subframe according to the following formula 2 or formula 3 Right The expected PUCCH resource number, 0) Equation 2: „ _CCH = K * X _t ePDCCH

Equation 3: n , 0) _CCH = n. _Ff JY e _e PDCCH + X, ePDCCH T ePUCCH

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _emrrr† is obtained from the network side device or calculated according to the following formula:

Y _ePurrR is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, Υ. eP _ρτ U _ΐ CCH _Τ is

N, DL, grant

Obtained from the network side device or calculated according to the following formula: ePUCCH

The cluster nePDCCH^RB is the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling, or the number of the first PRB occupied by the actually transmitted downlink scheduling signaling; ^N ePoccH And being the number of the starting PRB in the resource region of the downlink subframe that can be used for transmitting the enhanced PDCCH; ^N — ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; ^N ^uccH is the PUCCH corresponding to the enhanced PDCCH in the system The starting position of the resource region; the offset value of the terminal in the resource cluster of the enhanced PDCCH; ^V «s is the downlink total bandwidth that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe; K is greater than 1. Integer.

The method according to claim 2, wherein, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, determining, according to the following formula 4, that the enhanced PDCCH corresponds in the uplink subframe

PUCCH resource number (1)

■PUCCH

Equation 4: n _CCHj = (M -i - \y Y _ePDCCH + x _ePDCCH + (1)

ePUCCH

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCTJ is obtained from the network side device or calculated according to the following formula: n PDCCH , RB ~ ^ ePDCCH

X ePUCCH

Cluster

Y _ePurrH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, which is obtained by the network side device or calculated according to the following formula: 丄^ grant

From the net

Μ is the total number of downlink subframes for performing ACK/NACK feedback using the uplink subframe; the number of the uplink subframe is η, The number of the downlink subframe is n-ki, and the value of the sum is determined according to the table 10.1.3.1-1 of the LTE system communication protocol TS36.213; and is the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission. The number of the first physical resource block PRB, or the number of the first PRB occupied by the actually transmitted downlink scheduling signaling; ^N ePoccH, which is the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH. No.; ^N - ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system; ^ is the downlink that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe Total bandwidth.

6. The method according to claim 2, wherein if each enhanced PDCCH resource cluster carries the maximum bearer

For the K downlink scheduling signaling, the corresponding PUCCH resource number n _CCH in the uplink subframe is determined according to the following formula 5 or formula 6:

Formula 5: 丄,

Formula 6:

( ^— ί—Υ) * Κ + n ) * Y + X

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula:

Y _ePUCCH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, and I is obtained from the network side device or calculated according to the following formula: Y _ePUCCH

M is the total number of downlink subframes for performing ACK/NACK feedback using an uplink subframe, the number of the uplink subframe is n, the number of the downlink subframe is n-ki, and the value of the sum is according to the LTE system communication protocol TS36. Table 10.1.3.1-1 of .213 determines; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission, or the first occupied by the downlink transmission signaling actually transmitted The number of the PRBs; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N — ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; The starting position of the PUCCH resource region corresponding to the PDCCH; ^ is the total downlink bandwidth that can be used for transmitting downlink dynamic scheduling signaling in the downlink subframe, ^{Let n} be the offset value of the terminal in the resource cluster of the enhanced PDCCH; K is an integer greater than 1.

The method according to any one of claims 2-6, wherein the terminal sends the uplink feedback information corresponding to the enhanced PDCCH to the base station at the location of the PUCCH resource in the uplink subframe. Includes:

And transmitting, by the terminal, the uplink feedback information corresponding to the enhanced PDCCH to the base station, on the PUCCH resource corresponding to the PUCCH resource number in the uplink subframe.

The method according to any one of claims 1 to 4, wherein the number of the downlink subframe is n-ki, and the number of the uplink subframe is n, i=0, ki=4; Alternatively, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213.

9. An uplink feedback information receiving method, the method comprising:

The method according to claim 9, wherein the base station determines, according to a preset mapping rule, that the enhanced PDCCH in the downlink subframe corresponds to the PDCCH resource location in the uplink subframe, and includes:

Determining, by the base station, the enhanced PDCCH in the downlink subframe corresponding to the physical resource block PRB number or the resource cluster number in the enhanced PDCCH resource cluster occupied by the downlink scheduling signaling actually transmitted in the downlink subframe PUCCH resource number.

The method according to claim 10, wherein, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, the base station determines, according to the following formula 1, that the enhanced PDCCH in the downlink subframe is in the uplink subframe. Corresponding PUCCH resource number n _{CCH in the} frame:

— n ^(r> = Y + 丁 N ^(r> · where is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and X is obtained from the network side device or according to Calculated as follows:

The nePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N — ^duster is The minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; ^N ^uccH is the PUCCH resource region corresponding to the enhanced PDCCH in the system The starting position of the domain.

The method according to claim 10, wherein, if each enhanced PDCCH resource cluster carries at most K downlink scheduling signaling, the base station determines an enhanced PDCCH in the downlink subframe according to the following formula 2 or formula 3 Corresponding PUCCH resource number n _CCH in the uplink subframe:

/ ^"

A, one by one.. y> — V * y , _η ΛΓΟ)

''ePUCCH _ A Trt _ePUC cH ,

/ ^" = . —n *Y A- Y 4- ·

^Λ "ePUCCH ~ ⁿ _oJfitt ¹ ePDCCH ^T ^ ePDCCH ^T -' ^v ePUCCH '

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _emrrr† is obtained from the network side device or calculated according to the following formula: γ ⁿ e 'PPDDCCCCHH , , RRBB ― ^T ePDCCH , offset

ePUCCH

^mi cluster

Y _e e _P P _U U _C C _C C _H H is the total ι of the PDCCH resource cluster in the H-low I line - J sub J frame I increase 'strong' PDCCH / ' | occupied / '-' PDCCH resource cluster ^数-^^ quantity, t I丄_e pjJCCH i jDL, grant

Obtained from the network side device or calculated according to the following formula: Y _ePUCCH

Min cluster nePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N — ^duster is The minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; ^N ^uccH is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system; is the offset value of the terminal in the resource cluster of the enhanced PDCCH; ^V « s is the total downlink bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe; K is an integer greater than 1.

The method according to claim 10, wherein, if each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, the base station determines, according to the following formula 4, that the enhanced PDCCH in the downlink subframe is in an uplink subframe. Corresponding PUCCH resource number (1)

'PUCCH

Equation 4: n _CCH = (M - i - ψ Y _ePDCCH + ePDCCH

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula: γ ⁿ ePDCCH , RB ~ ^ ePDCCH , offset

ePUCCH

^mi cluster

Y _ePUCCH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, and Y _ePUCCH is

. TDL, grant

Obtained from the network side device or calculated according to the following formula: ^{1 V d}

^mi cluster

M is the total number of downlink subframes for performing ACK/NACK feedback using an uplink subframe, the number of the uplink subframe is n, the number of the downlink subframe is n-ki, and the value of the sum is according to the LTE system communication protocol TS36. Table 10.1.3.1-1 of .213 determines; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission, or the first occupied by the downlink transmission signaling actually transmitted Number of the PRBs; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N - ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; is the enhanced PDCCH in the system The starting position of the corresponding PUCCH resource region; ^ is the total downlink bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe.

The method according to claim 10, wherein, if each enhanced PDCCH resource cluster carries at most K downlink scheduling signaling, the base station determines an enhanced PDCCH in the downlink subframe according to the following formula 5 or formula 6 Corresponding PUCCH resource number n _CCH in the uplink subframe:

Equation 5: r ^l ePUCCH , i \ ^{1 V1 L} J 丄ePDCCH τ 1 , ^ ePDCCH ^τ "offset ^ ^l ePUCCH '

Formula 6:

nePUCCH , i ~ ( ^ - ί — Υ ) * Κ + n _o jf _set ) * Y _e PDCCH + X ePDCCH + ^ ePUCCH '

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, where _{Χρη π} is obtained from the network side device or calculated according to the following formula: γ ^e 'PPDDCCCCHH , , RRBB ― ^{1 v} ePDCCH , offset

ePUCCH

Cluster

Y _ePurrH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, which is grant

Obtained from the network side device or calculated according to the following formula:

^ m cluster

M is the total number of downlink subframes for performing ACK/NACK feedback using an uplink subframe, the number of the uplink subframe is n, the number of the downlink subframe is n-ki, and the value of the sum is according to the LTE system communication protocol TS36. Table 10.1.3.1-1 of .213 determines; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission, or the first occupied by the downlink transmission signaling actually transmitted Number of the PRBs; ^N ePoccH is the number of the starting PRB in the resource area of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N — ^duster is the system Resource cluster minimum bandwidth is increased PDCCH; enhanced brain system start position corresponding to the PDCCH PUCCH resource region; ^ may be a downlink subframe for transmitting a downlink dynamic scheduling signaling downlink total bandwidth; ^{n et} is the The offset value of the terminal in the resource cluster of the enhanced PDCCH; K is an integer greater than 1.

The method according to any one of claims 10 to 14, wherein the receiving, by the base station, the uplink feedback information sent by the terminal at the PUCCH resource location in the uplink subframe includes:

The base station receives the uplink feedback information sent by the terminal on the PUCCH resource corresponding to the PUCCH resource number in the uplink subframe.

The method according to any one of claims 9 to 12, wherein the number of the downlink subframe is n-ki, and the number of the uplink subframe is n, i=0, ki=4; Alternatively, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213.

17. A resource reservation method, the method comprising:

The base station reserves, in the uplink subframe, the PUCCH resource corresponding to the enhanced PDCCH in the downlink subframe according to the determination result.

The method according to claim 17, wherein the PUCCH resources reserved for one downlink subframe in the uplink subframe are consecutively arranged.

The method according to claim 17, wherein the uplink subframe is reserved for one downlink subframe.

The number of PUCCH resources is at least ———— where K is a positive integer, indicating the maximum number of downlink scheduling signaling carried in the resource cluster of each enhanced PDCCH; ^V «« is used for downlink scheduling in the downlink subframe. The total downlink bandwidth of signaling; the minimum bandwidth of a resource cluster of an enhanced PDCCH within the system.

The method according to claim 17, wherein the PUCCH resources reserved for the plurality of downlink subframes in the uplink subframe are consecutively arranged.

The method according to any one of claims 17 to 20, wherein the number of the downlink subframe is n-ki, and the number of the uplink subframe is n, i=0, ki=4; Alternatively, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213.

22. A resource reservation device, the device comprising:

a determining unit, configured to determine a physical uplink control channel corresponding to the enhanced physical downlink control channel PDCCH The number of PUCCH resources included in the PUCCH resource region;

The device according to claim 22, wherein the reserved unit reserves the PUCCH resources reserved for one downlink subframe in the uplink subframe.

The device according to claim 22, wherein the reserved unit reserves at least one PUCCH resource for one downlink subframe in the uplink subframe.

Where K is a positive integer, indicating the maximum number of downlink scheduling signaling carried in the resource cluster of each enhanced PDCCH; ^V «« is the total downlink bandwidth that can be used for transmitting downlink scheduling signaling in the downlink subframe; ^V TMn_d "W is the minimum bandwidth of a resource cluster of an enhanced PDCCH within the system.

The device according to claim 22, wherein the reserved unit continuously arranges PUCCH resources reserved for a plurality of downlink subframes in an uplink subframe.

26. An uplink feedback information sending device, the device comprising:

The device according to claim 26, wherein the location determining unit is configured to:

Determining, according to the physical resource block PRB number or the resource cluster number in the enhanced PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, the corresponding PUCCH resource number in the uplink subframe .

The device according to claim 27, wherein the location determining unit is configured to:

If each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, determine the corresponding PUCCH resource number n _CCH in the uplink subframe according to the following formula 1:

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCTJ is obtained from the network side device or calculated according to the following formula: ⁿ ePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling

The number of the PRB, or the number of the first PRB occupied by the downlink scheduling signaling actually transmitted; ^N ePoccH, which is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N — ^duster is The minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; ^N ^uccH is the starting position of the PUCCH resource region corresponding to the enhanced PDCCH in the system.

The device according to claim 27, wherein the location determining unit is configured to: if each enhanced PDCCH resource cluster carries at most K downlink scheduling signaling, determine the method according to the following formula 2 or formula 3 The enhanced PDCCH in the uplink subframe corresponds to the PUCCH resource number ¹ ^ U _CC H:

I. Λ/^ ¹ ) ·

v

/ ^, : · Y Λ / Ό) · where is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, Χ. _{Ηη π} is obtained from the network side device or calculated according to the following formula:

W ― N _t

Y _ePurrH is the total number of PDCCH resource clusters occupied by the PDCCH enhanced in the downlink subframe obtained from the network side device or calculated according to the following formula:

If each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, determine the location according to the following formula The enhanced PDCCH corresponds to the PUCCH resource number ⁿ ePuccH in the uplink subframe:

Formula IV. ― 0^ - - 1) * Y + X

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _{ePUCCH is} obtained from the network side device or calculated according to the following formula:

Y _ePUCCH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, and I _e pjJCCH is obtained from the network side device or calculated according to the following formula: Y _ePUCCH

If each enhanced PDCCH resource cluster carries at most K downlink scheduling signaling, determine the corresponding PUCCH resource number in the uplink subframe according to Equation 5 or Equation 6 below: ^^^:

Formula 5: 丄,

Formula 6:

( ^— ί—Υ) * Κ + n ) * Y + X

The X _ePUCCH is a resource cluster number of a PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCH is obtained from the network side device or calculated according to the following formula:

^ is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, Obtained from the network side device or calculated according to the following formula: Y _ePUCCH = ^——

M is the total number of downlink subframes for performing ACK/NACK feedback using an uplink subframe, the number of the uplink subframe is n, the number of the downlink subframe is n-ki, and the value of the sum is according to the LTE system communication protocol TS36. Table 10.1.3.1-1 of .213 determines; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission, or the first occupied by the downlink transmission signaling actually transmitted Number of the PRBs; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N - ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; is the enhanced PDCCH in the system starting position of the corresponding PUCCH resource region; ^ may be a downlink subframe used for downlink total transmission bandwidth of the downlink dynamic scheduling signaling, ^{n et} offset value for the terminal within the resources of the cluster enhanced PDCCH; K is An integer greater than one.

The device according to any one of claims 26 to 29, wherein the number of the downlink subframe is n-ki, and the number of the uplink subframe is n, i=0, ki=4; Alternatively, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213.

33. An uplink feedback information receiving device, where the device includes:

34. The device according to claim 33, wherein the location determining unit is configured to:

Determining, according to the physical resource block PRB number or the resource cluster number in the enhanced PDCCH resource cluster occupied by the downlink scheduling signaling actually transmitted in the downlink subframe, the enhanced PDCCH in the downlink subframe corresponds to the PUCCH in the uplink subframe Resource number.

35. The device according to claim 34, wherein the location determining unit is configured to:

If each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, determine the corresponding PUCCH resource number n _CCH in the uplink subframe of the enhanced PDCCH in the downlink subframe according to the following formula 1:

— n ^(r> = Y + N ^(r> · where is the resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and X _emrrr† is obtained from the network side device or Calculated according to the following formula: Y nePDCCH^RB is the first physical resource block in the resource cluster of the PDCCH occupied by the actually transmitted downlink scheduling signaling.

36. The device according to claim 34, wherein the location determining unit is configured to:

If each enhanced PDCCH resource cluster carries a maximum of K downlink scheduling signaling, the corresponding PUCCH resource number n _CCH in the uplink subframe is determined according to the following formula 2 or formula 3:

〃

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _{emrrr† is} obtained from the network side device or calculated according to the following formula:

Y _ePurrH is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, which is obtained from the network side device or calculated according to the following formula:

37. The device according to claim 34, wherein the location determining unit is configured to:

If each enhanced PDCCH resource cluster carries at most one downlink scheduling signaling, it is determined according to the following formula 4 The enhanced PDCCH in the row subframe is the corresponding PUCCH resource number in the uplink subframe.

Equation 4: _UCCHJ = (M -i -\yY _ePDCCH + x _ePDCCH +

The resource cluster number of the PDCCH resource cluster occupied by the downlink scheduling signaling actually received in the downlink subframe, and the X _ePUCCTJ is obtained from the network side device or calculated according to the following formula:

38. The device according to claim 34, wherein the location determining unit is configured to:

If each enhanced PDCCH resource cluster carries a maximum of K downlink scheduling signaling, the enhanced PUCCH resource number n _CCH in the uplink subframe is determined according to the following formula 5 or formula 6:

Formula 5:

丄 ,

Formula 6:

( ^— ί—Υ) * Κ + n ) * Y + X

Y _e is the total number of PDCCH resource clusters occupied by the enhanced PDCCH in the downlink subframe, and Y _e is Obtained from the network side device or calculated according to the following formula: ^{1 V d}

M is the total number of downlink subframes for performing ACK/NACK feedback using an uplink subframe, the number of the uplink subframe is n, the number of the downlink subframe is n-ki, and the value of the sum is according to the LTE system communication protocol TS36. Table 10.1.3.1-1 of .213 determines; the number of the first physical resource block PRB in the resource cluster of the PDCCH occupied by the downlink scheduling signaling of the actual transmission, or the first occupied by the downlink transmission signaling actually transmitted Number of the PRBs; ^N ePoccH is the number of the starting PRB in the resource region of the downlink subframe that can be used to transmit the enhanced PDCCH; ^N - ^duster is the minimum bandwidth of the resource cluster of the enhanced PDCCH in the system; is the enhanced PDCCH in the system The starting position of the corresponding PUCCH resource region; ^ is the downlink total bandwidth that can be used to transmit downlink dynamic scheduling signaling in the downlink subframe; ^{n et} is the offset value of the terminal in the resource cluster of the enhanced PDCCH; K is An integer greater than one.

The device according to any one of claims 33 to 36, wherein the number of the downlink subframe is η-13⁄4, and the number of the uplink subframe is n, i=0, ki=4; Alternatively, the values of i and 13⁄4 are determined according to Table 10.1.3.1-1 of the LTE system communication protocol TS36.213.

40. A wireless communication system, characterized in that the system comprises:

The terminal is configured to receive an enhanced physical downlink control channel PDCCH in a downlink subframe, where the enhanced PDCCH is located in a data region of the downlink subframe, and determine, according to a preset mapping rule, that the enhanced PDCCH is corresponding in the uplink subframe. a physical uplink control channel (PUCCH) resource location; the uplink feedback information corresponding to the enhanced PDCCH is sent to the base station at the PUCCH resource location in the uplink subframe;