WO2015139322A1

WO2015139322A1 - Base station, user equipment, and control channel transmission and receiving method

Info

Publication number: WO2015139322A1
Application number: PCT/CN2014/073900
Authority: WO
Inventors: 余政; 程型清; 南方; 刘江华
Original assignee: 华为技术有限公司
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2015-09-24
Also published as: CN105122707B; CN105122707A

Abstract

Provided are a base station, user equipment (UE), and control channel transmission and receiving method, the transmission method comprising: determining a plurality of subframes for conducting enhanced transmission on a control channel; and conducting enhanced transmission on the control channel in the plurality of subframes, the enhanced transmission being at least one of repetitive transmission, spread-spectrum transmission, transmission time interval-bundling (TTI-bundling) transmission and power increasing transmission. The base station and the UE can conduct control information mapping and detection on the determined plurality of subframes using the method of the present invention, thus reducing scheduling complexity and detection complexity.

Description

Base station, user equipment, and control channel transmission and reception method

[Technical Field]

The present invention relates to the field of communications technologies, and in particular, to a method for transmitting and receiving a control channel, and to a base station and a user equipment.

【Background technique】

One of the important applications of MTC (machine type communication) is smart meters, which are typically installed in the basement of a home or are isolated by a metal enclosure. In this case, the MTC UE (User Equipment) will experience more serious path loss than the normal UE. For example, the path loss needs to be increased by 15dB or 20dB. Therefore, operators want to have additional enhancements when providing services to MTC user devices.

In the prior art, the method of coverage enhancement is generally to increase information resources, such as power, time, frequency, codeword and the like, so as to reliably perform information transmission. Specifically, for example, the information may be repeatedly transmitted multiple times, TTI-bundling (Transmission Time Interval-bundling), by increasing the number of retransmissions of information, using robust spreading coding, 釆Robust coding modulation (such as low-order modulation and low coding rate), and / or power control to improve the reliability of information transmission. The information may be control information, data information, reference signals or system information. Reliable transmission of control information is a prerequisite for normal communication.

In the LTE (Long Term Evolution) or LTE-evolved system, the downlink control information is called DCI (downlink control information), and the DCI is carried by the downlink control channel. For example, the downlink control channel may be a PDCCH (Physical Downlink Control Channel) or an enhanced PDCCH (enhanced PDCCH), and the PDCCH or the ePDCCH may be used for a public message, an uplink dedicated message, and a downlink dedicated channel. There are scheduling of information, etc. In view of the coverage enhancement of the control channel, the repeated transmission of the DCI or the repeated transmission of the downlink control channel is generally used in the prior art to improve the reliability of the control channel transmission.

The PDCCH or ePDCCH is transmitted on one or more CCE (Control Channel Element) or eCCE (enhanced-CCE, enhanced control channel element). The aggregation level aggregation level is usually used to indicate the number of CCEs used for PDCCH transmission or the number of eCCEs used for ePDCCH transmission. In the existing system, one PDCCH or ePDCCH can be mapped in only one subframe, and the base station determines the aggregation level of the PDCCH or ePDCCH according to the channel condition of the UE, and multiple PDCCHs in the search space corresponding to the aggregation level. Among the candidates, one PDCCH candidate is determined to perform mapping of the PDCCH or the ePDCCH.

When the control channel transmission needs to be enhanced, it may be necessary to perform enhanced transmission on the control channel, and the prior art does not solve how to enhance the transmission of the control channel. For example, when the control channel enhances transmission in multiple subframes, how to determine the resources used to transmit the control channel in each of the plurality of subframes.

[Summary of the Invention]

The present application mainly solves the problem of how to perform enhanced transmission on the control channel, thereby reducing scheduling complexity and UE blind detection complexity.

In view of this, the embodiments of the present application provide a method for transmitting and receiving a base station, a user equipment, and a control channel.

A first aspect of the present application provides a method for transmitting a control channel, where the method includes: determining a plurality of subframes for performing enhanced transmission on a control channel; performing enhanced transmission on the control channel in the multiple subframes, where The enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

With reference to the first aspect, in a first possible implementation, the performing enhanced transmission of the control channel in the multiple subframes includes: transmitting a control channel on each of the multiple subframes, and The first parameter used to transmit the control channel on each of the plurality of subframes is the same; wherein the first parameter is a number of a starting control channel element or a number of a control channel element.

With reference to the first possibility of the first aspect, in a second possible implementation, the method includes: the first parameter used for transmitting a control channel in each of the multiple subframes is pre-defined; or The first parameter used to transmit the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

In combination with the first or second possibility of the first aspect, in a third possible implementation manner, determining, according to a predetermined index, a number used for transmitting a control channel on each of the multiple subframes Or determining, according to two predetermined indexes, a first parameter used for transmitting a control channel on each of the plurality of subframes; or, according to a predetermined index and a predetermined total

The CCE number determines a first parameter used to transmit a control channel on each of the plurality of subframes.

With reference to the third possibility of the first aspect, in a fourth possible implementation, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes The qth subframe in the subframe, where q is a predetermined integer.

With reference to the third possibility of the first aspect, in a fifth possible implementation, the predetermined total number of CCEs is a total of the subframes having the smallest or largest total CCE number of the multiple subframes The number of CCEs.

With reference to the third possibility of the first aspect, in a sixth possible implementation, the index of the two predefined indexes is an index of a first predetermined one subframe, where the first advance The specified one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or And the qth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where q is a predetermined integer.

With reference to the sixth possibility of the first aspect, in a seventh possible implementation, the another index of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the wth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where w is a predetermined integer.

With reference to the first to seventh possibilities of the first aspect, in an eighth possible implementation, the first parameter used by the transmission control channel satisfies a certain range, so that the control channel for scheduling the dedicated data is occupied. The control channel element has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or the first parameter used by the transmission control channel satisfies a certain range, so that the control channel for scheduling the dedicated data is occupied. Control channel elements and control channels in a common search space Elements have no resource overlap.

With reference to the first aspect, in a ninth possible implementation, the enhanced transmission of the control channel in the multiple subframes, the antenna port of the common reference signal in each of the multiple subframes And the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indicates that the configuration of the channel is the same PHICH-Config; and/or, the frame structure The mi factors used to determine PHICH resources in Type 2 are the same; and/or, the cyclic prefixes used are the same; and/or PHICH-duration is normal.

With reference to the first aspect, in a tenth possible implementation, the enhanced transmission is performed on the control channel in the multiple subframes: each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or, each of the plurality of subframes is an MBSFN subframe; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

With reference to the first aspect, in an eleventh possible implementation manner, the enhanced transmission is performed on the control channel in the multiple subframes: the subframe index in the multiple subframes belongs to {0, 4, 5, There are CFI OFDM symbols in the subframe of 9 } for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} for control a channel; or, for frame structure type 2, a subframe in which the subframe index belongs to {0, 5} has CFI OFDM symbols for a control channel, and subframes in the multiple subframes There are two OFDM symbols in the subframe whose index does not belong to {0, 5} for the control channel; wherein the value of CFI is 3 or 4.

With reference to the first aspect, in a twelfth possible implementation, the enhanced transmission of the control channel in the multiple subframes: the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the first In the bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range, Each of the plurality of subframes has V OFDM symbols for a control channel or a data channel; wherein, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range And the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V.

A second aspect of the present application provides a base station, where the base station includes: a determining module, configured to determine a control And the transmitting module is configured to perform enhanced transmission on the control channel in the multiple subframes determined by the determining module, where the enhanced transmission is repeated transmission, spread spectrum transmission, and transmission. At least one of time interval bundling transmission and power boost transmission.

With reference to the second aspect, in a first possible implementation, the sending module is specifically configured to: transmit a control channel on each of the multiple subframes, and each of the multiple subframes The first parameters used to transmit the control channel on all subframes are the same; wherein the first parameter is the number of the starting control channel element or the number of the control channel element.

With reference to the first possibility of the second aspect, in a second possible implementation, the method includes: the first parameter used by the sending module to transmit a control channel in each of the multiple subframes is a predetermined Or the first parameter used by the sending module to transmit the control channel on each of the multiple subframes is determined according to a predetermined functional relationship.

With reference to the first or second possibility of the second aspect, in a third possible implementation, the processing module is configured to: determine, according to a predetermined index, transmission on each of the multiple subframes a first parameter used by the control channel; or determining, according to two predetermined indexes, a first parameter used for transmitting a control channel on each of the plurality of subframes; or, according to a predetermined index and a predetermined The total CCE number determines a first parameter used to transmit a control channel on each of the plurality of subframes.

With reference to the third possibility of the second aspect, in a fourth possible implementation, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes The qth subframe in the subframe, where q is a predetermined integer.

With reference to the third possibility of the second aspect, in a fifth possible implementation, the predetermined total number of CCEs is a total number of subframes of the plurality of subframes having a minimum or maximum total number of CCEs The number of CCEs.

In combination with the third possibility of the second aspect, in a sixth possible implementation manner, the predetermined One of the two indexes is an index of a first predetermined one subframe, wherein the first predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined Or an integer of a subframe of a subframe having a smallest total number of CCEs among the plurality of subframes; or a qth subframe of the subframes having the smallest total number of CCEs of the plurality of subframes, where q is a predetermined integer.

With reference to the sixth aspect of the second aspect, in a seventh possible implementation, the another one of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the wth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where w is a predetermined integer.

With reference to the first to seventh possibilities of the second aspect, in an eighth possible implementation, the first parameter used by the sending module to transmit the control channel satisfies a certain range, so as to control the scheduling of the dedicated data. The control channel element occupied by the channel has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or the first parameter used by the transmitting module to transmit the control channel satisfies a certain range, so that the dedicated data is scheduled. The control channel elements occupied by the control channel have no resource overlap with the control channel elements in the common search space.

With reference to the second aspect, in a ninth possible implementation manner, the sending module performs enhanced transmission on a control channel in the multiple subframes, and in each subframe of the multiple subframes: a common reference signal The number of antenna ports is the same; and/or the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or, The mi factor used to determine PHICH resources in frame structure type 2 is the same; and/or, the cyclic prefix used is the same; and/or PHICH-duration is normal.

With reference to the second aspect, in a tenth possible implementation manner, when the sending module performs enhanced transmission on the control channel in the multiple subframes, each of the multiple subframes is not a multimedia multicast Single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or for frame structure type 2, each of the multiple subframes is an MBSFN subframe, or a subframe 1, or a sub-frame Frame 6.

With reference to the second aspect, in an eleventh possible implementation manner, the sending module is in the multiple When the control channel is enhanced in the subframe, the subframe index of the plurality of subframes belongs to the {0, 4, 5, 9} subframe, and the CFI OFDM symbols are used for the control channel, and the plurality of sub-frames There are two OFDM symbols in the subframe in which the subframe index in the frame does not belong to {0, 4, 5, 9} is used for the control channel; or, for the frame structure type 2, the subframe index in the multiple subframes belongs to There are CFI OFDM symbols in the subframe of {0, 5} for the control channel, and two subframes in the subframes that do not belong to {0, 5} have two OFDM symbols for the control channel. Where CFI has a value of 3 or 4.

With reference to the second aspect, in a twelfth possible implementation, the sending module is specifically configured to: when the bandwidth of a carrier used for performing enhanced transmission on the control channel belongs to a first bandwidth range, the multiple There are u OFDM symbols in each subframe of the frame for the control channel or the data channel; each subframe of the multiple subframes when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range There are V OFDM symbols for a control channel or a data channel; wherein the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range are mutually Disjoint, u and V are natural numbers, and u is not equal to V.

A third aspect of the present application provides a method for receiving a control channel, where the receiving method includes: determining a plurality of subframes of a control channel enhanced transmission; receiving, in the plurality of subframes, a control channel for enhanced transmission, where the enhanced transmission It is at least one of repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission.

With reference to the third aspect, in a first possible implementation, the receiving, by the multiple subframes, the control channel for enhanced transmission, includes: receiving a control channel on each of the multiple subframes, and The first parameter used to receive the control channel on each of the plurality of subframes is the same; wherein the first parameter is a number of a starting control channel element or a number of a control channel element.

With reference to the first possibility of the third aspect, in a second possible implementation, the method includes: the first parameter used to receive the control channel in each of the multiple subframes is pre-defined; or The first parameter used to receive the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

In combination with the first or second possibility of the third aspect, in a third possible implementation: Determining an index to determine a first parameter used by each of the plurality of subframes to receive a control channel; or determining, according to two predetermined indexes, a control channel on each of the plurality of subframes The first parameter used; or, according to a predetermined index and a predetermined total

The CCE number determines a first parameter used to receive the control channel on each of the plurality of subframes.

With reference to the third possibility of the third aspect, in a fourth possible implementation manner, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes The qth subframe in the subframe, where q is a predetermined integer.

With reference to the third possibility of the third aspect, in a fifth possible implementation, the predetermined total number of CCEs is a total of the subframes that have the smallest or largest total number of CCEs in the multiple subframes. The number of CCEs.

With reference to the third possibility of the third aspect, in a sixth possible implementation, the one of the two predefined indexes is an index of a first predetermined one subframe, where the first advance The specified one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or And the qth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where q is a predetermined integer.

With reference to the sixth aspect of the third aspect, in a seventh possible implementation, the another index of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the wth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where w is a predetermined integer.

With reference to the first to seventh possibilities of the third aspect, in an eighth possible implementation, the control channel that receives the enhanced transmission in the multiple subframes: each of the multiple subframes The first parameter used by the receiving control channel in the frame satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data and the control channel element occupied by the control channel for scheduling the common data are not Or having a resource overlap; or, the first parameter used by the control channel in each of the plurality of subframes meets a determined range, so that the control channel element occupied by the control channel for scheduling the dedicated data and the common search Control channel elements in space have no resource overlap.

With reference to the third aspect, in a ninth possible implementation manner, the control channel that receives an enhanced transmission in the multiple subframes: an antenna of a common reference signal in each of the multiple subframes The number of ports is the same; and/or, the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indicates that the configuration of the channel is the same PHICH-Config; and/or, the frame The mi factors used to determine PHICH resources in Structure Type 2 are the same; and/or, the cyclic prefixes used are the same; and/or PHICH-duration is normal.

With reference to the third aspect, in a tenth possible implementation manner, in the control channel that receives the enhanced transmission in the multiple subframes, each of the multiple subframes is not a multimedia multicast single frequency. a network MBSFN subframe; or, each of the plurality of subframes is an MBSFN subframe; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6 .

With reference to the third aspect, in an eleventh possible implementation manner, in the control channel that receives the enhanced transmission in the multiple subframes, the subframe index in the multiple subframes belongs to {0, 4, 5 There are CFI OFDM symbols in the subframe of 9} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} a control channel; or, for frame structure type 2, a subframe in which the subframe index belongs to {0, 5} has CFI OFDM symbols for the control channel, and the sub-frames of the plurality of subframes There are two OFDM symbols in the subframe whose frame index does not belong to {0, 5} for the control channel; wherein the value of CFI is 3 or 4.

With reference to the third aspect, in a twelfth possible implementation manner, the receiving, by the multiple subframes, the control channel for enhancing transmission, further comprising: receiving an enhanced transmission on a carrier whose bandwidth belongs to the first bandwidth range In the control channel, there are u OFDM symbols in each subframe of the multiple subframes for a control channel or a data channel; when the control channel for enhanced transmission is received on a carrier whose bandwidth belongs to the second bandwidth range, Each of the plurality of subframes has V OFDM symbols for a control channel or a data channel, where the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, And the first bandwidth range and the second bandwidth range do not intersect each other, U and V are natural numbers, and U is not equal to.

A fourth aspect of the present application provides a user equipment, where the user equipment includes: a determining module, configured to determine a plurality of subframes of a control channel enhanced transmission; and a receiving module, configured to: the multiple subframes determined by the determining module Receiving a control channel for enhanced transmission, wherein the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

With reference to the fourth aspect, in a first possible implementation, the receiving module is specifically configured to: receive a control channel on each of the multiple subframes, and each of the multiple subframes The first parameters used to receive the control channel on all subframes are the same; wherein the first parameter is the number of the starting control channel element or the number of the control channel element.

With reference to the first possibility of the fourth aspect, in a second possible implementation manner, the method includes: the first parameter used by the receiving module to receive a control channel in each of the multiple subframes is a predetermined Or the first parameter used by the receiving module to receive the control channel in each of the multiple subframes is determined according to a predetermined functional relationship.

With reference to the first or second possibility of the fourth aspect, in a third possible implementation, the user equipment further includes a processing module, where the processing module is configured to: determine the multiple according to a predetermined index The first parameter used by the control channel is received on each of the sub-frames; or the first parameter used to receive the control channel in each of the plurality of sub-frames is determined according to two predetermined indexes; or A predetermined index and a predetermined total number of CCEs determine a first parameter used to receive the control channel on each of the plurality of subframes.

With reference to the third possibility of the fourth aspect, in a fourth possible implementation, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes The qth subframe in the subframe, where q is a predetermined integer.

In combination with the third possibility of the fourth aspect, in a fifth possible implementation manner, the predetermined The total number of CCEs is the total number of CCEs in the subframe having the smallest or largest total number of CCEs among the plurality of subframes.

With reference to the third possibility of the fourth aspect, in a sixth possible implementation, the one of the two predefined indexes is an index of a first predetermined one subframe, where the first advance The specified one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or And the qth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where q is a predetermined integer.

With reference to the sixth aspect of the fourth aspect, in a seventh possible implementation, the another index of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the wth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where w is a predetermined integer.

With reference to the first to seventh possibilities of the fourth aspect, in an eighth possible implementation, the receiving module is configured to receive, in the multiple subframes, an enhanced transmission control channel: The first parameter used by the receiving control channel in each subframe satisfies a certain range, so that the control channel element occupied by the control channel scheduling the dedicated data has no resource overlap with the control channel element occupied by the control channel scheduling the common data; Or the first parameter used by the control channel in each of the multiple subframes meets a certain range, so that the control channel element occupied by the control channel scheduling the dedicated data and the control channel in the common search space are Elements have no resource overlap.

With reference to the fourth aspect, in a ninth possible implementation manner, the receiving module, in a control channel that receives an enhanced transmission in the multiple subframes: in each subframe of the multiple subframes: a common reference signal The number of antenna ports is the same; and/or the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or The frame factor type 2 is used to determine that the PH factor of the PHICH resource is the same; and/or, the cyclic prefix used is the same; and/or, PHICH-duration is normal.

With reference to the fourth aspect, in a tenth possible implementation manner, the receiving module is in the multiple In the control channel for receiving the enhanced transmission in the frame: each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or For frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

With reference to the fourth aspect, in an eleventh possible implementation manner, the receiving module, in the control channel that receives the enhanced transmission in the multiple subframes, the sub-frame index in the multiple subframes belongs to {0, 4 There are CFI OFDM symbols in the subframe of 5,9} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} For the control channel; or, for the frame structure type 2, the subframe index of the plurality of subframes belongs to {0, 5}, and there are CFI OFDM symbols for the control channel, and the multiple subframes The subframe in which the subframe index does not belong to {0, 5} has two OFDM symbols for the control channel; wherein the value of CFI is 3 or 4.

With reference to the fourth aspect, in a twelfth possible implementation, the receiving module is specifically configured to: when receiving the control channel that is enhanced to be transmitted on a carrier whose bandwidth belongs to the first bandwidth, the multiple subframes There are u OFDM symbols in each subframe for a control channel or a data channel; when the control channel for enhanced transmission is received on a carrier whose bandwidth belongs to the second bandwidth range, there are V in each subframe of the multiple subframes The OFDM symbol is used for a control channel or a data channel; wherein, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V.

A fifth aspect of the present application provides a base station, where the base station includes: a processor, configured to determine a plurality of subframes for performing enhanced transmission on a control channel; and a transmitter, configured to be used in the multiple subframes determined by the processor The enhanced transmission is performed on the control channel, wherein the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

With reference to the fifth aspect, in a first possible implementation, the transmitter is specifically configured to: transmit a control channel on each of the multiple subframes, and each of the multiple subframes The first parameters used to transmit the control channel on all subframes are the same; wherein the first parameter is the number of the starting control channel element or the number of the control channel element.

In conjunction with the first possibility of the fifth aspect, in a second possible implementation manner, the transmitter is Determining, by a predetermined parameter, a first parameter used for transmitting a control channel on each of the plurality of subframes; or a first parameter used by the transmitter to transmit a control channel on each of the plurality of subframes It is determined according to a predetermined functional relationship.

With reference to the first or second possibility of the fifth aspect, in a third possible implementation, the processor is further configured to: determine, according to a predetermined index, each subframe of the multiple subframes a first parameter used for transmitting a control channel; or determining, according to two predetermined indexes, a first parameter used for transmitting a control channel on each of the plurality of subframes; or, according to a predetermined index and an advance The specified total number of CCEs determines a first parameter used to transmit a control channel on each of the plurality of subframes.

With reference to the third possibility of the fifth aspect, in a fourth possible implementation, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes The qth subframe in the subframe, where q is a predetermined integer.

With reference to the third possibility of the fifth aspect, in a fifth possible implementation manner, the predetermined total number of CCEs is a total number of subframes of the plurality of subframes having a minimum or maximum total number of CCEs The number of CCEs.

With reference to the third possibility of the fifth aspect, in a sixth possible implementation, the one of the two predefined indexes is an index of a first predetermined one subframe, where the first advance The specified one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or And the qth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where q is a predetermined integer.

With reference to the sixth aspect of the fifth aspect, in a seventh possible implementation, the another one of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the plurality of The wth subframe in the subframe having the smallest total number of CCEs in the subframe, where w is a predetermined integer. With reference to the first to seventh possibilities of the fifth aspect, in an eighth possible implementation manner, the first parameter used by the transmitter to transmit the control channel satisfies a certain range, so as to control the scheduling of the dedicated data. The control channel element occupied by the channel has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or the first parameter used by the transmitter to transmit the control channel satisfies a certain range, so that the dedicated data is scheduled. The control channel elements occupied by the control channel have no resource overlap with the control channel elements in the common search space.

With reference to the fifth aspect, in a ninth possible implementation manner, the transmitter performs enhanced transmission on a control channel in the multiple subframes, and in each subframe of the multiple subframes: a common reference signal The number of antenna ports is the same; and/or the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or, The mi factor used to determine PHICH resources in frame structure type 2 is the same; and/or, the cyclic prefix used is the same; and/or PHICH-duration is normal.

With reference to the fifth aspect, in a tenth possible implementation manner, when the transmitter performs enhanced transmission on the control channel in the multiple subframes, each of the multiple subframes is not a multimedia multicast Single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or for frame structure type 2, each of the multiple subframes is an MBSFN subframe, or a subframe 1, or a sub-frame Frame 6.

With reference to the fifth aspect, in an eleventh possible implementation manner, when the transmitter performs enhanced transmission on the control channel in the multiple subframes, the subframe index in the multiple subframes belongs to {0, 4 There are CFI OFDM symbols in the subframe of 5, 9} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} For the control channel; or, for the frame structure type 2, the subframe index of the plurality of subframes belongs to {0, 5}, and the CFI OFDM symbols are used for the control channel, and the multiple subframes The subframe in which the subframe index does not belong to {0, 5} has two OFDM symbols for the control channel; wherein the value of CFI is 3 or 4.

With reference to the fifth aspect, in a twelfth possible implementation, the transmitter is specifically configured to: when a bandwidth of a carrier used for performing enhanced transmission on the control channel belongs to a first bandwidth range, Each of the subframes has u OFDM symbols for a control channel or a data channel; when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range, each of the plurality of subframes There are V OFDM symbols in the frame for the control channel or the data channel; wherein the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range Do not intersect each other, u and V are natural numbers, and u is not equal to V.

A sixth aspect of the present application provides a user equipment, where the user equipment includes: a processor, configured to determine a plurality of subframes for controlling channel enhanced transmission; and a receiver, configured to determine, by the processor, the multiple subframes Receiving a control channel for enhanced transmission, wherein the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

With reference to the sixth aspect, in a first possible implementation, the receiver is specifically configured to: receive a control channel on each of the multiple subframes, and each of the multiple subframes The first parameters used to receive the control channel on all subframes are the same; wherein the first parameter is the number of the starting control channel element or the number of the control channel element.

With reference to the first possibility of the sixth aspect, in a second possible implementation manner, the first parameter used by the receiver to receive the control channel in each of the multiple subframes is predetermined; or The first parameter used by the receiver to receive the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

With reference to the first or second possibility of the sixth aspect, in a third possible implementation, the first parameter used for receiving the control channel in each of the multiple subframes is determined according to a predetermined index. Or determining, according to two predetermined indexes, a first parameter used by each of the plurality of subframes to receive a control channel; or determining, according to a predetermined index and a predetermined total number of CCEs. The first parameter used by the control channel is received on each of the sub-frames.

With reference to the third possibility of the sixth aspect, in a fourth possible implementation, the predetermined one index is an index of a predetermined one subframe, where the predetermined one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a minimum total number of CCEs among the plurality of subframes In the sub-frame The qth subframe, where q is a predetermined integer.

With reference to the third possibility of the sixth aspect, in a fifth possible implementation, the predetermined total number of CCEs is a total number of subframes of the plurality of subframes having a minimum or maximum total number of CCEs The number of CCEs.

With reference to the third possibility of the sixth aspect, in a sixth possible implementation, the one of the two predefined indexes is an index of a first predetermined one subframe, where the first advance The specified one subframe is: a p-th subframe of the plurality of subframes, where p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or And the qth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where q is a predetermined integer.

With reference to the sixth possibility of the sixth aspect, in a seventh possible implementation, the another index of the two predefined indexes is an index of a second predetermined one subframe, where the second The predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the multiple subframes; Or, the wth subframe in the subframe having the smallest total CCE number among the plurality of subframes, where w is a predetermined integer.

With reference to the first to seventh possibilities of the sixth aspect, in an eighth possible implementation, the receiver is configured to receive, in the multiple subframes, an enhanced transmission control channel: The first parameter used by the receiving control channel in each subframe satisfies a certain range, so that the control channel element occupied by the control channel scheduling the dedicated data has no resource overlap with the control channel element occupied by the control channel scheduling the common data; Or the first parameter used by the control channel in each of the multiple subframes meets a certain range, so that the control channel element occupied by the control channel scheduling the dedicated data and the control channel in the common search space are Elements have no resource overlap.

With reference to the sixth aspect, in a ninth possible implementation manner, the receiver, in the control channel that receives the enhanced transmission in the multiple subframes: in each of the multiple subframes: a common reference signal The number of antenna ports is the same; and/or the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or , the frame factor type 2 is used to determine the same mi factor of the PHICH resource; and/or, the loop used The prefix is the same; and/or PHICH-duration is normal.

With reference to the sixth aspect, in a tenth possible implementation, the receiver is configured to receive the enhanced transmission in the multiple subframes: each of the multiple subframes is not a multimedia multicast a frequency network MBSFN subframe; or, each of the plurality of subframes is an MBSFN subframe; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

With reference to the sixth aspect, in an eleventh possible implementation manner, the receiver, in the control channel that receives the enhanced transmission in the multiple subframes, the sub-frame index in the multiple subframes belongs to {0, 4 There are CFI OFDM symbols in the subframe of 5, 9} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} For the control channel; or, for the frame structure type 2, the subframe index of the plurality of subframes belongs to {0, 5}, and the CFI OFDM symbols are used for the control channel, and the multiple subframes The subframe in which the subframe index does not belong to {0, 5} has two OFDM symbols for the control channel; wherein the value of CFI is 3 or 4.

With reference to the sixth aspect, in a twelfth possible implementation, the receiver is specifically configured to: when receiving the control channel of the enhanced transmission on a carrier whose bandwidth belongs to the first bandwidth, the multiple subframes There are u OFDM symbols in each subframe for a control channel or a data channel; when the control channel for enhanced transmission is received on a carrier whose bandwidth belongs to the second bandwidth range, there are V in each subframe of the multiple subframes The OFDM symbol is used for a control channel or a data channel; wherein, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V.

The present invention facilitates the determined multiple subframes by predetermining a plurality of subframes, and performing enhanced transmission, such as repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission, on the control channel in the multiple subframes. The mapping and detection of control information are performed, which reduces the complexity of scheduling and the complexity of detection.

[Description of the Drawings]

1 is a flowchart of an embodiment of a method for transmitting a control channel of the present application; 2 is a block diagram of a block diagram of an embodiment of a base station of the present application;

3 is a block diagram of another embodiment of a base station of the present application;

4 is a flowchart of an embodiment of a method for receiving a control channel of the present application;

5 is a block diagram of a module of an embodiment of a user equipment of the present application;

6 is a block diagram of another embodiment of a user equipment of the present application.

【detailed description】

In the following description, for purposes of explanation and description, reference, However, a detailed description of well-known devices, circuits, and methods may be omitted to avoid obscuring the details of the application.

The techniques described herein can be used in a variety of communication systems, such as current 2G, 3G, 4G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA, Code). Division Multiple Access) system, Time Division Multiple Access (TDMA), Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Frequency Division Multiple Addressing (FDMA) system, OFDM (Orthogonal Frequency-Division Multiple Access) system, single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) Systems, and other systems in which such communication systems evolve or upgrade.

Various aspects are described herein in connection with user equipment and/or base stations and/or base station controllers.

The user equipment, which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal The computers, for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network. For example, Personal Communication Service (PCS), Cordless Phone, Session Initiation Protocol (SIP), Wireless Local Loop (WLL, Wireless Local Loop), personal digital assistant (PDA, Personal Digital Assistant) and other devices. A wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

A base station (e.g., an access point) can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface.

For example, the base station may be a Base Station Controller (BSC) in a 2G network, or a Radio Network Controller (RNC) in a 3G network, or an evolved Node B in an LTE network (evolved Node B) , eNodeB). For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.

The base station controller may be a base station controller (BSC) in GSM or CDMA, or a radio network controller (RNC) in WCDMA, which is not limited in this application.

In addition, the terms "system," and "network" are used interchangeably herein. The term "and/or" in this article is merely an association describing the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations. In addition, the character " /" in this article generally means that the contextual object is an "or" relationship, which represents the division in the formula operation.

In the present application, the control channel is a channel carrying control information. For example, the control channel is a physical downlink control channel PDCCH, or an enhanced physical downlink control channel ePDCCH. The enhanced transmission may be one or more combinations of repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission. The power boost can be either an increase in transmit power or an increase in power spectral density. The increase in power spectral density may be that signal transmission occupies a smaller frequency width or a single carrier transmission or a smaller scheduling granularity (e.g., 15 kHz) than a physical resource block. The control channel enhanced transmission or enhanced transmission control channel is an enhanced transmission of the control channel or an enhanced transmission of the control channel carried by the control channel. Control information can be down Control information DCI. The DCI may be control information for downlink data scheduling or control information for uplink data scheduling. Control channel enhanced transmission or enhanced transmission control channel refers to enhanced transmission of a control channel or a control channel in multiple subframes. The control channel element may be a control channel element CCE or an enhanced control channel element eCCE.

In the present application, the enhanced transmission is repeated transmission, the control channel element is CCE, and the control channel is PDCCH as an example to illustrate the solution of the present application. It should be noted that the solution of the present application is also applicable to: replacing the repeated transmission in the embodiment with a spread spectrum transmission, or a transmission time interval bundle transmission, or a power boost transmission; and/or, replacing the CCE in the embodiment with the eCCE And/or, the PDCCH in the embodiment is replaced with an ePDCCH. The method for implementing the different solutions described above may be the same as the method described in the following embodiments, and the present application is not described or limited.

In the present application, Ncc^ is a subframe with index A (ie, the total number of CCEs in the control region of the subframe, and the number of CCEs in the control region of the subframe is 0, 1, ..... N _ \ where can be derived from the slot number, such as k = floor(n _s /2), where _ 3⁄4or (^ is a round-down function. The number of ^NccE ' ^k is at least in subframe k The number of antenna ports of the common reference signal, the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel, the physical hybrid automatic repeat request indication channel configuration PHICH-Config, one of the mi factors determining the PHICH resource or A variety of related.

In the present application, a plurality of subframes refer to subframes used for control channel or control information to be repeatedly transmitted X times. In other words, if the number of repeated transmissions of the control channel is determined, it is equivalent to determining the number of subframes used for repeated transmission of the control channel, and vice versa. Correspondingly, on the UE side, when detecting the control channel, the UE may determine the value of the repetition number X according to a predetermined rule or signaling configuration. At this time, the UE does not need to perform blind detection on the number of repetitions of the control channel repeated transmission. Alternatively, the UE may try the possible value of the repetition number X when detecting the control channel. The UE needs to detect the control channel according to the available aggregation level and control channel candidates for the control channel transmission according to the number of possible repetitions of the control channel repeated transmission.

It should be noted that, in the present application, the number of repeated transmissions X of the repeated transmission of the control channel in multiple subframes includes the initial control channel transmission, that is, the control channel repeated transmission X times includes the initial primary control channel transmission and additional X-1 repetitions of transmission.

The control channel transmitted in the subframe A in the present application may be transmitted on a subframe of one radio frame, or may be transmitted on a subframe of multiple radio frames. In other words, the control channel may be repeatedly transmitted on one or more subframes whose subframe index is k, and one or more subframes whose subframe index is k is located at one Or multiple radio frames.

One or more embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to FIG. 1 , FIG. 1 is a flowchart of an implementation manner of a method for transmitting a control channel according to the present application. This embodiment is described by using an implementation process between a base station and a UE, and of course, a control channel may be performed between the UE and the UE. The transmission method is not limited herein. The transmission method of this embodiment includes but is not limited to the following steps.

5100. Determine a plurality of subframes for performing enhanced transmission on the control channel.

In S100, the multiple subframes may be multiple subframes in the same radio frame, or may be multiple subframes composed of at least one subframe in each of the plurality of radio frames, which is not limited herein.

5101. Perform enhanced transmission on a control channel in multiple subframes, where the enhanced transmission is at least one of repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission.

It is noted that, in S101, a control channel is transmitted on each of the plurality of subframes, and the first parameter used for transmitting the control channel in each of the plurality of subframes is the same; wherein, the first parameter Is the number of the starting control channel element or the number of the control channel element.

In a preferred embodiment, at the base station side: the first parameter used for transmitting the control channel on each of the plurality of subframes is predetermined; or, for transmitting the control channel on each of the plurality of subframes The first parameter is determined according to a predetermined functional relationship.

Optionally, on the base station side, the first parameter used for transmitting the control channel on each of the multiple subframes may be determined according to a predetermined index; or, the multiple indexes in the multiple subframes may be determined according to two predefined indexes. The first parameter used for transmitting the control channel on each subframe; or, the first parameter used for transmitting the control channel in each of the plurality of subframes may be determined according to a predetermined index and a predetermined total number of CCEs.

In the foregoing implementation process, a predetermined index is a predetermined index of one subframe, where a predetermined one subframe may be: a p-th subframe in multiple subframes, where p is a predetermined integer; or a subframe having a smallest total number of CCEs among the plurality of subframes; or a qth subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

Certainly, in a specific implementation, one of the two predefined indexes is an index of the first predetermined one subframe, where the first predetermined one subframe may be: the pth in the multiple subframes a subframe, where p is a predetermined integer; or, a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or a qth of the subframes having the smallest total number of CCEs among the plurality of subframes Subframes, where q is a predetermined integer. In addition, the other of the two predefined indexes is the second a predetermined index of one subframe, wherein the second predetermined one subframe may be: the rth subframe of the plurality of subframes, where r is a predetermined integer; or, the smallest total CCE among the plurality of subframes a subframe index of the number of subframes; or, the wth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes, where w is a predetermined integer.

It should be noted that, in the first embodiment, the first parameter used for transmitting the control channel in each of the plurality of subframes is determined according to a predetermined index and a predetermined total number of CCEs, and the predetermined total number of CCEs may be The total number of CCEs in a subframe having the smallest or largest total number of CCEs among the plurality of subframes.

The first parameter used for transmitting the control channel may also satisfy a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data does not overlap with the control channel element occupied by the control channel for scheduling the common data; or The first parameter used for transmitting the control channel may also satisfy a certain range such that the control channel elements occupied by the control channel scheduling the dedicated data have no resource overlap with the control channel elements in the common search space.

It is not difficult to see that the above process determines that the CCEs of the control channel in each subframe are the same when the enhanced transmission of the control channel is performed in multiple subframes, thereby reducing scheduling complexity and UE blind detection complexity.

In a specific manner, when the control channel is enhanced and transmitted in multiple subframes: each of the multiple subframes is not an MBSFN (Multicast Broadcast Single Frequency Network) subframe; or Each of the plurality of subframes is an MBSFN subframe; or for the frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

For example, when performing enhanced transmission on a control channel in multiple subframes: a subframe index in a plurality of subframes belongs to a subframe of {0, 4, 5, 9}, and CFI OFDM symbols are used for a control channel, and There are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} are used for the control channel; or, for the frame structure type 2, the subframe index in the plurality of subframes belongs to There are CFI OFDM symbols in the subframe of {0, 5} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 5} is used for the control channel. Among them, the value of CFI is 3 or 4.

For example, when the control channel is enhanced in multiple subframes: when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes. On the control channel or the data channel; when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel. The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges. And the first bandwidth range and the second bandwidth range do not intersect each other, U and V are natural numbers, and U is not equal to V. For example, the present application may also define multiple subframes used by the control channel for enhanced transmission in multiple subframes, thereby determining the use of the control channel in each subframe when performing enhanced transmission of the control channel in multiple subframes. The resources and/or resource locations are the same, and the specific implementation process is as follows.

The control channel is enhanced in a plurality of subframes, and the number of antenna ports of the common reference signal in each of the plurality of subframes may be the same; and/or OFDM for the control channel (Orthogonal Frequency Division Multiplex) The number of symbols may be the same; and/or PHICH (Physical Hybrid ARQ Indicator Channel) - Config may be the same; and/or frame structure type 2 The mi factors used to determine PHICH resources may be the same; and/or, the cyclic prefixes used may be the same; and/or, PHICH-duration is normal „

Through the limitation of the foregoing multiple subframes, it is determined that when the enhanced transmission of the control channel is performed in the multiple subframes, the used resources and/or resource locations of the control channel in each subframe are the same, which facilitates control channel allocation or mapping to the UE. It also facilitates the UE to perform control channel detection, etc., which reduces the complexity of system scheduling and the complexity of detection.

The application will be further described below by way of specific embodiments.

When the control channel is repeatedly transmitted in a plurality of subframes, the timing of the plurality of subframes needs to be determined. The time of the plurality of subframes may be predetermined by the system or determined according to the parameterized parameters of the signaling or the blind detection. The control channel performs repeated transmissions on each of the determined plurality of subframes.

In particular, the aggregation level used to transmit the control channel on each of the plurality of subframes is the same. That is, the aggregation level used to transmit the control channel on any two of the plurality of subframes is the same. The aggregation level used to transmit the control channel on each of the plurality of subframes is. Wherein the value of L is one or more fixed values set in advance. If fixed in advance = 8. For another example, ⁸ ) sets in advance. In particular, the control channel is a set of values of L at the time of the PDCCH, and is different from the set of values of L when the control channel is ePDCCH. For example, when the control channel is PDCCH = 8 or I ⁴ ' ⁸ ), and when the control channel is ePDCCH = 16 or { ¹⁶ , ³² }.

Specifically, the control channel candidate indexes used for transmitting the control channel in the search space corresponding to the aggregation level L in each of the plurality of subframes are the same. That is, the control channel candidate indices used for transmitting the control channel in the search space corresponding to the aggregation level L in any two of the plurality of subframes are the same. The control channel candidate index in the search space corresponding to the aggregation level is m, and then the control used to transmit the control channel in the search space corresponding to the aggregation level in each of the plurality of subframes The channel candidate indices are all m. Wherein, the value of m may be one or more fixed values preset, such as m=0, or pre-specified ^ {W} or ¹ , ² , ³ . In other embodiments, the set of values of m may be specified to be related to the aggregation level L, or the set of values of m may be specified regardless of the aggregation level L.

In particular, the number of antenna ports of the common reference signal in each of the plurality of subframes is the same. When the base station transmits the repeated control channel, each of the plurality of subframes is reserved for the resource elements used by the common reference signal according to the number of antenna ports. Alternatively, when the base station transmits the repeated control channel, each of the plurality of subframes is reserved for the resource elements used by the common reference signal according to the number of antenna ports. Similarly, on the UE side, when receiving the repeated control channel, the UE considers that each of the multiple subframes is reserved according to the number of antenna ports of 2 for the resource elements used by the common reference signal; or, the UE receives the repeated When the channel is controlled, it is considered that each of the plurality of subframes is reserved according to the resource element used for the common reference signal by 4 antenna ports.

Specifically, the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel in each of the plurality of subframes is the same. For example, there are 2 OFDM symbols in each of the plurality of subframes for the control channel; or, 3 OFDM symbols in each of the plurality of subframes are used for the control channel; or, each of the plurality of subframes There are 4 OFDM symbols in the subframe for the control channel.

In particular, the subframes of the plurality of subframes are composed of a plurality of subframe sets, and the number of OFDM symbols used for the control channel or the data channel in the subframes included in the different subframe sets is different. The set of multiple subframes may be predetermined. For example, a subframe in a plurality of subframes is composed of a set of 2 subframes, which are a first subframe set and a second subframe set, respectively, and the first subframe set and the second subframe set are different sets. Each of the first subframe set has u OFDM symbols for the control channel, and each of the second subframe set has V OFDM symbols for the control channel, where u, v are positive integers, and u is not equal to V.

For example, there are 3 OFDM symbols in each of the plurality of subframes for the control channel, and 2 of the OFDM symbols in each of the plurality of subframes are used for the control channel. For example, there are 4 OFDM symbols in each of the plurality of subframes for the control channel, and 2 of the OFDM symbols in each of the plurality of subframes are used for the control channel.

Optionally, for the frame structure type 1, the subframe index in the multiple subframes may belong to the {0, 4, 5, 9} subframe, and there are 3 or 4 OFDM symbols used for the control channel, and the multiple subframes There are 2 OFDM symbols in the subframe in which the subframe index does not belong to {0, 4, 5, 9} for the control channel. And for the frame structure type 2, three or four OFDM symbols in the subframe in which the subframe index in the plurality of subframes belongs to {0, 5} are used for the control channel, and the subframe index in the plurality of subframes does not belong to { There are 2 OFDM symbols in the subframe of 0, 5} for the control letter. Road. It should be noted that since the configuration of the MBSFN subframe is a base station configuration, the present embodiment can be applied to the case where the UE does not know the configuration of the MBSFN subframe, and receives the control channel. The control channel is: a control channel or a schedule for scheduling a system information block (such as SIB2, System Information Block-2, System Information Block 2) including an MBSFN subframe configuration, including a TDD (Time Division Duplex) configuration The control channel of a system information block (such as SIB1).

For example, there are 3 OFDM symbols in each non-MBSFN subframe for the control channel, and 2 OFDM symbols in each MBSFN subframe in the plurality of subframes are used for the control channel. For frame structure type 2, if subframe 1 and/or subframe 6 are also included in multiple subframes, then 2 subframes in each of subframes 1 and/or subframe 6 of the plurality of subframes are used for the control channel.

For example, when the bandwidth of the carrier belongs to the first bandwidth, there are u OFDM symbols in each of the multiple subframes for the control channel or the data channel, and when the bandwidth of the carrier belongs to the second bandwidth, There are V OFDM symbols in each of the sub-frames for the control channel or data channel. As described above, in the embodiment, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range are different bandwidth ranges, and u, v are natural numbers, and u Not equal to V.

For example, for a large bandwidth carrier, such as a carrier larger than 1.4 MHz ( Mega Hertz, megahertz), there are 3 OFDM symbols in each of the plurality of subframes for the control channel, and for the small bandwidth carrier, As less than a 1.4 MHz carrier, there are 4 OFDM symbols in each of the plurality of subframes for the control channel. Or, for a large bandwidth carrier, such as a carrier larger than 1.4 MHz, there are 2 OFDM symbols in each of the plurality of subframes for the control channel, and for the small bandwidth carrier, such as less than 1.4 MHz carrier, multiple subframes There are 3 OFDM symbols in each non-MBSFN subframe in the control channel. If the MBSFN subframe is further included in the plurality of subframes, there are 2 OFDM symbols in each of the plurality of subframes for the control channel.

In particular, the PHICH-Config of each of the plurality of subframes is the same. The PHICH-Config of the present embodiment includes an information element of a PHICH-continuous PHICH-Duration and an information element of a PHICH resource Resource. Usually, PHICH-Config is included in the MIB (Master Information Block). Therefore, in a plurality of subframes in which the control channel is repeatedly transmitted, the base station considers that the PHICH-Config included in the MIB does not change when transmitting the control channel; accordingly, in a plurality of subframes in which the control channel is repeatedly transmitted, the UE side is receiving the control channel. It is considered that the PHICH-Config included in the MIB does not change.

In particular, for frame structure type 2, the mi factors for determining PHICH resources in each of the plurality of subframes are the same. The size of mi can be determined according to advance regulations. As specified in the control letter The repeating transmission of the mi of the starting subframe in the plurality of subframes determines the mi of each of the plurality of subframes. If the UE determines that the control channel repeatedly transmits the mi of the starting subframe in the multiple subframes, determining that the control channel repeatedly transmits the multiple subframes according to the same mi factor for determining the PHICH resource in each of the multiple subframes. Mi in other subframes. Alternatively, the mi factor for determining the PHICH resource in each of the plurality of subframes may be configured by signaling. In particular, the value of the present embodiment mi is determined by the MIB notification configuration. In particular, when receiving the control channel of the system information block (such as SIB1) that includes the TDD configuration, the UE does not know the uplink and downlink configuration of the TDD, and therefore cannot determine the mi of the subframe that carries the control channel. To this end, the present embodiment may indicate in the MIB that the bearer of the control channel of the control channel including the system information block (such as SIB1) of the TDD configuration is scheduled. Correspondingly, on the UE side, after the UE detects the MIB, it may determine that mi of the subframe in which the control channel repeat transmission of the system information block (SIB1) of the TDD configuration is scheduled, so as to detect the control channel according to the determined mi. In addition, the UE can blindly detect the control channel by attempting a possible mi value. For example, if the control channel scheduling SIB1 is transmitted on subframe 5, since the value of mi may be 0, 1, 2 in subframe 5, the UE needs to try different mi values to detect the PDCCH.

In particular, the cyclic prefix of each of the subframes in which the plurality of control channels are repeatedly transmitted is the same. The cyclic prefix of each subframe in a subframe that is repeatedly transmitted as a plurality of control channels is a normal cyclic prefix. Alternatively, the cyclic prefix of each of the subframes in which the plurality of control channels are repeatedly transmitted is an extended cyclic prefix.

If the PHICH configuration in the MIB is unchanged, for the frame structure type 1, the PHICH configuration and the resource size of the subframes of different radio frames are the same. For frame structure type 2, if the PHICH configuration in the MIB is unchanged and the TDD uplink and downlink configuration is unchanged, the subframes of different radio frames have the same mi.

In order to determine the number of the control channel element, the present application can preferably be implemented by the following process. In this embodiment, the first parameters used for transmitting the control channel in each of the plurality of subframes are the same, that is, the first parameters used for transmitting the control channel in any two of the plurality of subframes are the same. . For example, the first parameter is the number of the initial control channel element, and the number of the initial control channel element used to transmit the control channel on each of the plurality of subframes is n. . Where n. It can be a pre-specified value, or n. It is determined according to a predetermined functional relationship. In particular, the embodiment may specify that the value of n ₀ satisfies a certain range, so that the CCE resource occupied by the PDCCH scheduling the dedicated data does not overlap or the CCE resource occupied by the PDCCH scheduling the public data, or the scheduling The CCE resources occupied by the PDCCH with data are not in the common search space. In particular, it is specified that n _{0 is} greater than 15.

Optionally, the first parameter is a number of a control channel element. This embodiment is in each of a plurality of subframes The number of the (aggregation level L) control channel elements used to transmit the control channel on each subframe is the same. That is, the number of aggregation level L control channel elements used to transmit the control channel on any two of the plurality of subframes is the same. The number of the control channel element used to transmit the control channel on each of the plurality of subframes is ηο, , . . . , η _ζ-1 , where the number of the L control channel elements is n ₀ , n _l5 ...... , η^ may be a predetermined value, or ηο, ι^, ..., η^ is determined according to a predetermined functional relationship.

In this embodiment, the first parameter used for transmitting the control channel in each of the plurality of subframes may be determined according to a predetermined index.

For example, defining a pre-specified index with a value of Α is pre-specified. For example, the rule ^ 0. Again, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, a predetermined one subframe is the pth subframe of the plurality of subframes, where p is a predetermined integer. For another example, a predetermined one subframe is a subframe having a minimum or maximum total number of CCEs among a plurality of subframes of the repeated transmission control channel. Therefore, the subframe index of the subframe having the smallest or largest total CCE number among the plurality of subframes of the transmission control channel is repeatedly transmitted. For another example, the predetermined one subframe is the qth subframe in the subframe having the smallest or largest total CCE number among the plurality of subframes of the repeated transmission control channel. q is a predetermined integer, such as q=l. Therefore, it is a subframe index of the qth subframe in the subframe having the smallest total C C E number among the plurality of subframes of the transmission control channel.

In this embodiment, the number n _Q of the initial control channel element used for control channel transmission in each of the plurality of subframes or the control channel element number no, . . . , n may be determined according to a predetermined index k. _{Il o}

Πι= Ζχ { (Y _k + m') mod [_N _CCE>k / ” }+ (Formula 1)

Where i is an integer 0,1..丄-1; is the number of the i+1th control channel element used for control channel transmission in each of the plurality of subframes; k is a predetermined index m is the control channel candidate index in the search space corresponding to the aggregation level L, and Μ = Ο · · · Μ ⁽ " - Ι , Μ ^(£) is the number of control channel candidates in the search space corresponding to the predetermined aggregation level L For public search space = for user equipment UE-specific search space and the UE is not configured with the carrier identification field = for

'UE ^{+ M} '"C/"c/ is the value of the carrier indication field when the UE is configured with the carrier identification field; mod is the modulo function; / ^ is rounded down to ^ccE; N _{cce k} is the total number of control channel elements of the subframe with index k; ί^ Ί^ο^ , ^ = 39827 , £) = 65537 , %NTI is the value of the wireless network temporary identifier RNTI. The number of the initial control channel element used to transmit the control channel on the subframe or the number of the aggregation level L control channel elements.

The two pre-specified indexes are A ^ fe7. The value of A is predetermined. For example, /^0. Or, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, one of the predetermined subframes is the p-th subframe of the plurality of subframes in which the control channel is repeatedly transmitted, and p is a predetermined integer. Such as p = l. Therefore, the subframe index of the pth subframe in the plurality of subframes of the transmission control channel is repeatedly transmitted.

The value of another pre-specified index ^ is pre-specified. For example, /^=0. Alternatively, the value of ^ is determined according to pre-rules. For example, it is a sub-frame index of a predetermined subframe. One of the predetermined subframes is a subframe having the smallest or largest total number of CCEs among the plurality of subframes of the repeated transmission control channel. Therefore / ^ is the subframe index of the subframe having the smallest or largest total number of CCEs among the plurality of subframes of the repeated transmission control channel. For another example, a predetermined one subframe is a qth subframe in a subframe having a minimum or maximum total number of CCEs among a plurality of subframes of the repeated transmission control channel, and q is a predetermined integer. Such as q = l. Therefore, ka is a subframe index of the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes of the transmission control channel.

According to the pre-specified index of two subframes and ^ can determine n _Q or ηο, , ..., n _{il o} such as, n, = x { (Y _k + m') mod L^ _{CCE) ifl} / }+ (Formula 2)

The parameters in Equation 2 are interpreted as Equation 1, and are not described here.

Certainly, the embodiment may further determine, according to a predetermined index and a predetermined total number of CCEs, a number of the initial control channel element used for transmitting the control channel in each of the multiple subframes or an aggregation level L control channel elements. The number.

Specifically, it is predetermined that the value of a predetermined index is ^ A. For example, specify 0. Or, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, one of the predetermined subframes is the p-th subframe of the plurality of subframes in which the control channel is repeatedly transmitted. p is a predetermined integer. For example, p=l. Therefore, the subframe index of the p-th subframe in the plurality of subframes of the transmission control channel is repeatedly transmitted. The pre-specified total number of CCEs is Wc _CE . The WCCE may be equal to the total number of CCEs in the subframes having the smallest or largest total CCE number among the multiple subframes. For example, suppose there are R subframes for control channel transmission, and Wcc _E = _m i _n { Wc _CE , , where r = o, l, , R-1. Min ( ) is the minimum function, which is the r+1th subframe in the R subframes used for control channel repeated transmission. The total number of CCEs. Or, W _CCE = _MIN { W _CCE ' }, where F ₀山₅ R_i _o ^ is a subframe index of the r+1th subframe in the R subframes used for control channel repetition transmission.

According to a predetermined subframe index and WCCE of one subframe, n _Q or ηο, ι^, ..., n _{il o} can be determined.

^口, ni= x { (Y _k + m') mod LW _CCE / ” }+ (Formula 3)

The parameters in Equation 3 are explained as Equation 1, and are not described herein.

It should be noted that, on the UE side, the UE may try to detect the control channel by using a possible aggregation level and possible control channel candidates under the aggregation level. Further, if the UE does not know the number of the multiple subframes or the number of repetitions for controlling the channel enhanced transmission when detecting the control channel, the UE also needs to try to detect the control channel according to the number of possible multiple subframes or the number of repetitions.

In this embodiment, the number of antenna ports of the common reference signal in each of the plurality of subframes may be the same or different. The CFI values in multiple subframes may be the same or different. The PHICH-Config of each of the plurality of subframes may be the same or different. The cyclic prefix of each of the plurality of subframes may be the same or different. For frame structure type 2, the mi factors used to determine the PHICH resources in each of the plurality of subframes may be the same or different.

If the control channel is a schedule for SIB1 or a system information block containing a TDD configuration. For frame structure type 1, the CFI of the subframe in which the control channel is transmitted is 2, or the control channel is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, when the control channel is transmitted on one or more of the subframes 0, 4, 5, 9, the CFI of the subframe is 3. For frame structure type 2, the CFI of the subframe in which the control channel is transmitted is 2, or the control channel is repeatedly transmitted on subframes 0 and/or 5. Further, when the control channel is transmitted on one or more of the subframes 0 and/or 5, the CFI of the subframe is 3. Alternatively, the control channel is repeatedly transmitted on subframes 0 and/or 5, and the control channel may also be repeatedly transmitted on subframes 1 and/or 6. CFI=3 of a subframe in which a control channel is transmitted on one or more of subframes 0 and/or 5, and a subframe of a control channel is transmitted on one or more of subframes 1 and/or 6 CFI=2.

The MBSFN subframe configuration is included in the system information block type X, such as x=2. For frame structure type 1, the CFI of the subframe in which the control channel of the SIBx is scheduled is CFI=2, or the control channel of the scheduling SIBx is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, when the control channel for scheduling the SIBx is transmitted on one or more of the subframes 0, 4, 5, 9, the CFI of the subframe is 3. For frame structure type 2, the CFI of the subframe in which the control channel of the SIBx is scheduled is CFI=2. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on subframes 0 and/or 5. Further, when the control channel scheduling the SIBx is transmitted on one or more of the subframes 0 and/or 5, the CFI of the subframe is 3. Or, scheduling the control channel of the SIBx The transmission is repeated on subframes 0 and/or 5, and the control channel scheduling the SIBx may also be repeated on subframes 1 and/or 6. Transmitting CFI=3 of a subframe of a control channel scheduling SIBx on one or more of subframes 0 and/or 5, and transmitting SIBx scheduling on one or more of subframes 1 and/or 6 The CFI of the subframe of the control channel is 2.

It should be noted that, due to the total number of CCEs in one subframe and the number of antenna ports of the common reference signal in the subframe, the number of OFDM symbols used for the control channel, PHICH-Config, and the mi factor determining the PHICH resource (for example, For one or more correlations in the frame structure type 2), therefore, if there are different total CCE numbers in two subframes in multiple subframes, the manner of determining the number of the control channel element by using the above embodiment does not It is ensured that the control channel mapped on each of the plurality of subframes has the same resource element location on the physical resource.

As described above, the present embodiment further makes it possible to map the control elements transmitted on each of the plurality of subframes to the same resource element positions on the physical resources by the following method.

For frame structure type 2, the PHICH resource size of each subframe is related to mi, so that the total number of CCEs in each subframe is related to mi of the subframe. In order to make the control element mapped on each of the plurality of subframes have the same resource element position on the physical resource, each of the plurality of subframes may be set to meet one or more of the following provisions:

Rule 1: The number of antenna ports of the common reference signal in each of the plurality of subframes is the same; Specification 2: the number of OFDM symbols used for the control channel in each of the plurality of subframes is the same; The PHICH-Config of each subframe in the subframe is the same;

Rule 4: For frame structure type 2, the mi factor used to determine the PHICH resource in each of the plurality of subframes is the same;

Rule 5: If the PHICH duration in each of the plurality of subframes is extended (extended): each of the plurality of subframes is not an MBSFN subframe; or each of the plurality of subframes is an MBSFN Subframe; or, for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, and/or subframe 1, and/or subframe 6;

Rule 6: The PHICH duration in each of the multiple subframes is normal.

Rule 7: Each of the multiple subframes uses the same cyclic prefix.

In the enhanced transmission method of the control channel according to this embodiment, the transmission of the control channel may be performed in each of the plurality of subframes according to one or more of the above provisions. Generally, each of the plurality of subframes satisfies at least the above-mentioned provisions 1 to 4. Correspondingly, on the UE side, the reception of the control channel may be performed in each of the plurality of subframes according to one or more of the above provisions. It should be noted that Table 1 is the value of the frame structure type 2, the mi factor in different uplink and downlink configurations and different subframes:

: mi factor of frame structure type 2

As shown in Table 1 above, when the subframe k is configured in different uplink and downlink configurations, the value of mi may be different. For example, when the uplink and downlink configurations are 0, mi of subframe 0 is equal to 2; when the uplink and downlink configuration is 1, the mi of subframe 0 is equal to 0; when the uplink and downlink configuration is 3, mi of subframe 0 is equal to 1. For the same uplink and downlink configuration, the values of mi in different subframes may also be different. For example, when the uplink and downlink configurations are 0, mi of subframe 0 is equal to 2, and mi of subframe 1 is equal to 1.

In order to map the control elements transmitted on each of the plurality of subframes to the same resource element locations on the physical resources, the control channel can only be repeatedly transmitted on the same mi subframe. For example, when the upper and lower rows are configured as 0, subframe 0 and subframe 5 have the same mi, so the control channel is repeatedly transmitted on subframe 0 and/or subframe 5. Or, when the uplink and downlink configurations are 0, subframe 1 and subframe 6 have the same mi, so the control channel performs repeated transmission on subframe 1 and/or subframe 6. For another example, when the uplink and downlink configurations are 1, subframe 0 and subframe 5 have the same mi, so the control channel performs repeated transmission on subframe 0 and/or subframe 5. Or, when the uplink and downlink configurations are 1, subframe 1, subframe 4, subframe 6, and subframe 9 have the same mi, so the control channel is in subframe 1, subframe 4, subframe 6, and subframe 9. One or more subframes are repeatedly transmitted.

If the control channel is for scheduling of SIB1 or for scheduling of system information blocks including uplink and downlink configurations

(SIBy). For frame structure type 1, the CFI of the subframe in which the control channel is transmitted is 2. Alternatively, the control channel is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. The CFI of the subframe in which the control channel is transmitted on one or more of the subframes 0, 4, 5, 9 is CFI=3.

For the frame structure type 2, the user equipment does not know the uplink and downlink configuration when receiving the control channel, and therefore cannot determine the mi value of the subframe. To this end, the possible values of mi may be tried in a plurality of predetermined subframes to detect the control channel. For example, the control channel is on one or more subframes with a subframe index of 5. Repeated transmission, the UE attempts the detection of the control channel by taking the possible mi value on the subframe 5. Further, the CFI of the subframe in which the control channel is transmitted is 3.

For another example, because the uplink and downlink configurations are 0 to 6, subframe 1 and subframe 6 have the same mi. The control channel of the scheduling SIBy may be specified to be repeatedly transmitted on one or more subframes having subframe indices of 1 and/or 6. Further, the CFI of the subframe in which the control channel is transmitted is 2.

For another example, because the uplink and downlink configurations 2, 4, 5, and 6, sub-frame 0, sub-frame 1, sub-frame 5, and sub-frame 6 have the same mi. If the base station is performing repeated transmission of the control channel, the uplink and downlink configuration is one of 2, 4, 5, and 6. In this case, the control channel for scheduling the SIBy may be specified to be 0, 1, 5, and 6 in the subframe index. The transmission is repeated on one or more subframes. Further, CFI=2.

The MBSFN subframe configuration is included in the System Information Block Type x (SIBx). Such as x=2. For FDD systems, the CFI of the subframe of the SIBx control channel is set to CFI=2. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, the CFI = 3 of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 4, 5, 9.

For frame structure type 2, the subframe of the control channel of the SIBx is scheduled to have a CFI=2. Alternatively, the subframe of the control channel of the SIBx is scheduled to have CFI = 2, and the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes having the same mi. Because the UE knows the uplink and downlink configuration when detecting the SIBx, the UE also knows that the mis of those subframes are the same. Alternatively, the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes of the subframes 0, 1, 5, 6 having the same mi. Further, the CFI of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 1, 5, and 6.

According to the plurality of methods stipulated in the plurality of regulations 1-7 and Table 1, the number of total CCEs in each of the plurality of subframes of the repeated transmission control channel can be ensured to be the same, and the repeated transmission can be ensured by the above manner. The physical resources are the same to facilitate the scheduling and detection of control resources.

In summary, the present application can determine the control channel element number in the manner of deriving the above calculations n _Q or ηο, , ..., η _ζ-1 . Specifically, the present embodiment can determine n _Q or ηο, ι^, , n _LA by using any one of the above formulas 1, 2, and 3 or an extension thereof, which are easily understood by those skilled in the art. Within the scope, it will not be described here.

It should be particularly noted that the above embodiments are mainly described for the control channel to be transmitted in multiple subframes, and in a specific implementation process, the control channel may also be used in each of one or more subframes. Repeated transmissions are performed multiple times within a frame, that is, repeated transmissions are performed in a frequency domain manner. When the control channel is repeatedly transmitted multiple times within each subframe, the control channel that is repeatedly transmitted in each subframe has a fixed offset in the initial control channel element number in the subframe. If in one subframe, the control channel is carried out

M times of repeated transmission, the initial control channel element number c ₀ of the control channel of the first repeated transmission in the M repeated transmission control channels can be determined in a similar manner to determining the number of the control channel element in the previous embodiment, and The initial control channel element number d=c _Q + offset of the control channel of the second repeated transmission in the M repeated transmission control channels, where offset is a preset fixed offset value, similarly, The initial control channel element number c of the control channel of the ith repeated transmission in the repeatedly transmitted control channel is c + offset, i = 1, 2, , M.

Through the above-mentioned embodiment of FIG. 1 and its extended extended technical solution, the present application can determine that the control channel determines the first parameter used for control channel transmission when the control channel is transmitted in each of the plurality of subframes, and solves the problem. Enhance the mapping resource problem of transmission, thus reducing the complexity of scheduling and detection.

2 is a block diagram of a block diagram of an embodiment of a base station of the present application. The base station of the present embodiment includes but is not limited to the determining module 21, the transmitting module 22, and the processing module 23.

In this embodiment, the determining module 21 is configured to determine a plurality of subframes for performing enhanced transmission on the control channel. The sending module 22 is configured to perform enhanced transmission on the control channel in the multiple subframes determined by the determining module 21. The enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

It should be noted that the sending module 22 transmits a control channel on each of the multiple subframes, and the first parameter used for transmitting the control channel in each of the multiple subframes is the same; wherein, the first parameter is The number of the starting control channel element or the number of the control channel element.

In particular, the first parameter used by the transmitting module 22 to transmit the control channel on each of the plurality of subframes is predetermined; or the transmitting module 22 transmits the control channel for each of the plurality of subframes. A parameter is determined based on a predetermined functional relationship.

In a specific implementation process, the processing module 23 is configured to: determine, according to a predetermined index, a first parameter used by each of the multiple subframes to transmit a control channel; or, determine, according to two predefined indexes, multiple subframes. The first parameter used for transmitting the control channel on each subframe in the frame; or determining the first parameter used for transmitting the control channel in each of the plurality of subframes according to a predetermined index and a predetermined total number of CCEs.

It should be noted that, in the process of determining the first parameter, the processing module 23 pre-specifies a cable. The reference is an index of a predetermined subframe, wherein a predetermined one subframe may be: a p-th subframe in a plurality of subframes, where p is a predetermined integer; or, a minimum total CCE among the plurality of subframes a sub-frame of a number; or, a q-th subframe in a subframe having a smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

The process module 23 determines, in the process of determining the first parameter, one of the two indexes specified in advance is an index of the first predetermined one subframe, where the first predetermined one subframe may be: multiple subframes a p-th subframe in which p is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes. Or, the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

Similarly, the other one of the two predetermined indexes is an index of a second predetermined one subframe, wherein the second predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or, a w-th subframe of the subframe having the smallest total number of CCEs among the plurality of subframes, where w is A predetermined integer.

The predetermined total number of CCEs is the total number of CCEs in the subframes having the smallest or largest total number of CCEs in the plurality of subframes.

It should be noted that the first parameter of this embodiment may satisfy one or more conditions. For example, the first parameter used by the sending module 22 to transmit the control channel satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; Alternatively, the first parameter used by the transmitting module 22 to transmit the control channel satisfies a determined range such that the control channel element occupied by the control channel scheduling the dedicated data has no resource overlap with the control channel element in the common search space.

Optionally, when the sending module 22 performs enhanced transmission on the control channel in multiple subframes, each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or each of the multiple subframes The frames are all MBSFN subframes; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

Optionally, when the sending module 22 performs enhanced transmission on the control channel in multiple subframes: the subframe index in the multiple subframes belongs to the {0, 4, 5, 9} subframe, and the CFI OFDM symbols are used for control. a channel, and a subframe index in a plurality of subframes that does not belong to {0, 4, 5, 9} has two OFDM symbols for the control channel; or, for frame structure type 2, a sub-frame among the plurality of subframes A subframe with a frame index of {0, 5} has CFI OFDM symbols for the control channel, and a subframe in which the subframe index does not belong to {0, 5} has two OFDM symbols for control. channel. Among them, the value of CFI is 3 or 4. Optionally, when the bandwidth of the carrier used by the control channel for the enhanced transmission belongs to the first bandwidth, the sending module 22 has u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; The module 22 has V OFDM symbols in each of the plurality of subframes for the control channel or the data channel when the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range. The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V.

The foregoing process achieves the same CCE number used for enhanced transmission of the control channel in each subframe in multiple subframes to facilitate scheduling and reduce the complexity of UE detection. However, the above procedure does not guarantee that the control channel has the same physical resource element position for enhanced transmission in each subframe in a plurality of subframes.

If the control channel is to have the same physical resource element location for enhanced transmission in each of the plurality of subframes, the transmitting module 22 performs enhanced transmission on the control channel in each of the plurality of subframes, in each of the plurality of subframes. The number of antenna ports of the common reference signal is the same; and/or, the number of OFDM symbols used for the control channel is the same; and/or PHICH-Config is the same; and/or, the frame structure type 2 is used to determine the PHICH resource. The mi factors are the same; and/or, the cyclic prefix used is the same; and/or PHICH-duration is normal.

The base station shown in Fig. 2 of the present embodiment will be further described below by way of a specific embodiment. When the control channel is repeatedly transmitted in a plurality of subframes, the timing of the plurality of subframes needs to be determined. The time of multiple subframes may be predetermined by the system or determined according to signaled parameters or blind detection. The control channel performs repeated transmissions on each of the determined plurality of subframes.

In particular, the aggregation level used to transmit the control channel on each of the plurality of subframes is the same. That is, the aggregation level used to transmit the control channel on any two of the plurality of subframes is the same. The aggregation level used to transmit the control channel on each of the plurality of subframes is. Wherein the value of L is one or more fixed values set in advance. If fixed in advance = 8. For another example, a set of ⁸ } is pre-defined. In particular, the control channel is a set of values of L at the time of the PDCCH, and it may be different from a set of values when the control channel is an ePDCCH. For example, when the control channel is PDCCH = 8 or when the control channel is ePDCCH = 16 or ^e { ¹⁶ , ³² }.

Specifically, the control channel candidate indexes used for transmitting the control channel in the search space corresponding to the aggregation level L in each of the plurality of subframes are the same. That is, the control channel candidate indices used for transmitting the control channel in the search space corresponding to the aggregation level L in any two of the plurality of subframes are the same. The control channel candidate index in the search space corresponding to the aggregation level is m, then, in multiple The control channel candidate index used for transmitting the control channel in the search space corresponding to the aggregation level in each subframe in the subframe is m. Wherein, the value of m may be one or more fixed values set in advance, such as m=0, or pre-specified ^ or ¹ , ² , ³ . In other embodiments, the set of values of m may be specified to be related to the aggregation level L, or the set of values of m may be specified regardless of the aggregation level L.

In particular, the number of antenna ports of the common reference signal in each of the plurality of subframes is the same. When the base station transmits the repeated control channel, each of the plurality of subframes is reserved for the resource element used for the common reference signal according to the number of antenna ports 2. Alternatively, when the base station transmits the repeated control channel, each of the plurality of subframes is reserved for the resource element used by the common reference signal according to the number of antenna ports 4. Similarly, on the UE side, when receiving the repeated control channel, the UE considers that each of the multiple subframes is reserved according to the number of antenna ports 2 for the resource elements used by the common reference signal; or, the UE receives the repeated control. In the case of a channel, it is considered that each of the plurality of subframes is reserved for the resource elements used for the common reference signal according to the number of antenna ports 4.

Optionally, for the frame structure type 1, the subframe index in the multiple subframes may belong to the {0, 4, 5, 9} subframe, and there are 3 or 4 OFDM symbols used for the control channel, and the multiple subframes There are 2 OFDM symbols in the subframe in which the subframe index does not belong to {0, 4, 5, 9} for the control channel. And for the frame structure type 2, three or four OFDM symbols are used for the control channel in the subframe in which the subframe index in the plurality of subframes belongs to {0, 5}, And there are 2 OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 5} is used for the control channel. It should be noted that, since the configuration of the MBSFN subframe is set by the base station, when the UE does not know the configuration of the MBSFN subframe in this manner, the control channel is received. The control channel is as follows: A control channel that schedules a system information block (such as SIB2) that includes an MBSFN subframe configuration or a control channel that includes a system information block (such as SIB1) that includes a TDD configuration.

For example, when the bandwidth of the carrier belongs to the first bandwidth, there are u OFDM symbols in each of the multiple subframes for the control channel or the data channel, and when the bandwidth of the carrier belongs to the second bandwidth, multiple sub-bands There are V OFDM symbols in each subframe in the frame for the control channel or data channel. As described above, in this embodiment, in particular, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range are different bandwidth ranges, and u, v are natural numbers, and u is not equal.

In particular, the PHICH-Config of each of the plurality of subframes is the same. The PHICH-Config of the present embodiment includes an information element of PHICH-Duration and an information element of PHICH resource Resource. Usually, PHICH-Config is included in the MIB. Therefore, in a plurality of subframes in which the control channel is repeatedly transmitted, the base station considers that the PHICH-Config included in the MIB does not change when transmitting the control channel; accordingly, in a plurality of subframes in which the control channel is repeatedly transmitted, the UE side is receiving the control channel. It is considered that the PHICH-Config included in the MIB does not change.

In particular, for frame structure type 2, the mi factors for determining PHICH resources in each of the plurality of subframes are the same. The size of mi can be determined according to advance regulations. As specified in the control letter The repeating transmission of the mi of the starting subframe in the plurality of subframes determines the mi of each of the plurality of subframes. If the UE determines that the control channel repeatedly transmits the mi of the starting subframe in the multiple subframes, determining that the control channel repeatedly transmits the multiple subframes according to the same mi factor for determining the PHICH resource in each of the multiple subframes. Mi in other subframes. Alternatively, the mi factor for determining the PHICH resource in each of the plurality of subframes may be configured by signaling. In particular, the value of the present embodiment mi is determined by the MIB notification configuration. In particular, when receiving the control channel of the system information block (such as SIB1) that includes the TDD configuration, the UE does not know the uplink and downlink configuration of the TDD, and therefore cannot determine the mi of the subframe that carries the control channel. To this end, the present embodiment may indicate in the MIB that the bearer of the control channel of the control channel including the system information block (such as SIB1) of the TDD configuration is scheduled. Correspondingly, on the UE side, after the UE detects the MIB, it may determine that mi of the subframe in which the control channel repeat transmission of the system information block (SIB1) of the TDD configuration is scheduled, so as to detect the control channel according to the determined mi. In addition, the UE can blindly detect the control channel by attempting a possible mi value. For example, if the control channel scheduling SIB1 is transmitted on subframe 5, since the value of mi may be 0, 1, 2 in subframe 5, the UE may try different mi values to detect the PDCCH.

In order to determine the first parameter, the present embodiment can be realized in particular by the following process. The first parameter is the number of the starting control channel element or the number of the control channel element.

In this embodiment, as described above, the first parameter used for transmitting the control channel in each of the plurality of subframes is the same, that is, the control channel is used for transmitting the control channel in any two of the plurality of subframes. The first parameters are the same. For example, the first parameter is the number of the starting control channel element, and the first parameter used to transmit the control channel in each of the plurality of subframes is _n . . Where n. It can be a pre-specified value, or n. It is determined according to a predetermined functional relationship. In particular, this embodiment can specify n. The value of the PDCCH occupied by the PDCCH for scheduling the dedicated data does not overlap or the CCE resource occupied by the PDCCH for scheduling the common data does not overlap or the resource collides, or the CCE resource occupied by the PDCCH for scheduling the dedicated data is not in the public. Search space. In particular, it is specified that n _{0 is} greater than 15. Optionally, the first parameter is a number of a control channel element. In this embodiment, the numbers of the (aggregation level L) control channel elements used for transmitting the control channel in each of the plurality of subframes are the same. That is, the number of aggregation level L control channel elements used to transmit the control channel on any two of the plurality of subframes is the same. The number of the control channel element used to transmit the control channel on each of the plurality of subframes is ηο, , . . . , η _ζ-1 , where the number of the L control channel elements is n ₀ , n _l5 ...... , η^ may be a predetermined value, or ηο, ι^, ..., η^ is determined according to a predetermined functional relationship.

The present embodiment determines, in particular, a first parameter used for transmitting a control channel on each of a plurality of subframes based on a predetermined index.

Specific application example 1, defining a predetermined index of the value of ^ 是 is predetermined. For example, specify 0. As another example, the value of A can be determined according to a predetermined rule. For example, it is a sub-frame index of a predetermined subframe. For example, a predetermined one subframe is the pth subframe of the plurality of subframes, where p is a predetermined integer. For another example, a predetermined one subframe is a subframe having a minimum or maximum total CCE number among a plurality of subframes of the repeated transmission control channel. Therefore, it is a subframe index of a subframe in which a minimum or maximum total number of CCEs among the plurality of subframes of the control channel is repeatedly transmitted. For another example, the predetermined one subframe is the qth subframe in the subframe having the smallest or largest total CCE number among the plurality of subframes of the repeated transmission control channel. q is a predetermined integer, such as q=l. Therefore, the subframe index of the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes of the transmission control channel is repeatedly transmitted. The application example 1 can determine the number n _Q or the control channel element number ηο, ι^ of the initial control channel element used for control channel transmission in each of the plurality of subframes according to a predetermined index A. , η _ζ-1 :

Πι= Ζχ { (Y _k + m') mod [_N _CCE>k / ” }+ i (Formula 4)

'UE ^{+ M} '"C/"c/ is the value of the carrier indication field when the UE is configured with the carrier identification field; mod is the modulo function; / ^ is rounded down to ^ccE; N _{cce k} is the total number of control channel elements of the subframe with index k; ί^ Ί^ο^ , ^ = 39827 , £) = 65537 , %NTI is the value of the wireless network temporary identifier RNTI. The first parameter used to transmit the control channel on each subframe.

According to the pre-specified index of two subframes and ^ can determine n _Q or ηο, , ..., n _{il o} such as, n, = x { (Y _k + m') mod L^ _{CCE) ifl} / }+ (式5)

The parameters in Equation 5 are explained as Equation 4, and are not described here.

Of course, the present application may also determine a first parameter used for transmitting a control channel on each of the plurality of subframes according to a predetermined index and a predetermined total number of CCEs.

In the specific application example 3, it is assumed that the value of a predetermined index A is predetermined. For example, specify ^ 0. Or, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, one of the predetermined subframes is the p-th subframe of the plurality of subframes in which the control channel is repeatedly transmitted. p is a predetermined integer. For example, p=l. Therefore, the subframe index of the p-th subframe in the plurality of subframes of the transmission control channel is repeatedly transmitted. The pre-specified total number of CCEs is Wc _CE . The W _CCE may be equal to the total number of CCEs in the subframes having the smallest or largest total CCE number among the multiple subframes. For example, suppose there are R subframes for control channel transmission, specifying Wcc _E = _m i _n { ^CCE,, } , where _r=0山... _?R . _lo min ( ) is the minimum The function is the total number of CCEs in the r+1th subframe in the R subframes used for control channel repetition transmission. Or, Wcc _E = _m in { W _CCE ^, where ^oj, _R . _lo is

R subframe indices of the r+1th subframe in the subframe for controlling channel repetition transmission. According to a predetermined subframe index and WCCE of one subframe, n _Q or ηο, ι^, ..., n _{il o} can be determined.

^口, ni= x { (Y _k + m') mod LW _CCE / ” }+ (Equation 6)

The parameters in Equation 6 are explained as Equation 4, and are not described herein.

It should be noted that, on the UE side, the UE may try to detect the control channel by using a possible aggregation level and possible control channel candidates under the aggregation level. Further, if the UE does not know the number of the multiple subframes or the number of repetitions for controlling the channel enhanced transmission when detecting the control channel, the UE may also try to detect the control channel according to the number of possible multiple subframes or the number of repetitions.

The MBSFN subframe configuration is included in the system information block type X, such as x=2. For frame structure type 1, the CFI of the subframe in which the control channel of the SIBx is scheduled is CFI=2, or the control channel of the scheduling SIBx is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, when the control channel for scheduling the SIBx is transmitted on one or more of the subframes 0, 4, 5, 9, the CFI of the subframe is 3. For frame structure type 2, when the control channel of the SIBx is scheduled, the CFI of the subframe is 2. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on subframes 0 and/or 5. Further, the CFI=3 of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0 and/or 5. Alternatively, the control channel scheduling the SIBx is repeatedly transmitted on subframes 0 and/or 5, and the control channel scheduling the SIBx may also be repeatedly transmitted on subframes 1 and/or 6. Propagating a control channel for scheduling SIBx on one or more of subframes 0 and/or 5 The CFI of the subframe is 3, and the CFI of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 1 and/or 6.

It should be noted that, due to the total number of CCEs in one subframe and the number of antenna ports of the common reference signal in the subframe, the number of OFDM symbols used for the control channel, PHICH-Config, and the mi factor determining the PHICH resource (for example, For one or more correlations in the frame structure type 2), therefore, if there are different total CCE numbers in two subframes in multiple subframes, the manner in which the first parameter is determined by the above embodiment is not guaranteed. The control channel map transmitted on each of the plurality of subframes has the same resource element location on the physical resource.

The present application will cause the control channel transmitted on each of the plurality of subframes to be mapped to the same resource element location on the physical resource by the following method.

Rule 5: if the PHICH duration in each of the plurality of subframes is extended: each of the plurality of subframes is not an MBSFN subframe; or each of the plurality of subframes is an MBSFN subframe; or For frame structure type 2, each of the plurality of subframes is an MBSFN subframe, and/or subframe 1, and/or subframe 6;

Rule 6: The PHICH duration in each of the multiple subframes is normal.

Rule 7: Each of the multiple subframes uses the same cyclic prefix.

The present application passes the enhanced transmission method of the control channel according to the special application example of 1-7, and the control channel can be transmitted in each of the plurality of subframes according to one or more of the above provisions. Generally, each of the plurality of sub-frames satisfies at least the above-mentioned provisions 1 to 4. Accordingly, on the UE side, the reception of the control channel can be performed in each of the plurality of subframes in accordance with one or more of the above provisions.

It should be noted that the values of the mi factor in different uplink and downlink configurations and different subframes are as described above. Table 1 is shown in the example.

For example two, in order to map the control elements transmitted on each of the plurality of subframes to the same resource elements on the physical resources, the control channels can only be repeatedly transmitted on the same mi subframe. For example, when the uplink and downlink configurations are 0, subframe 0 and subframe 5 have the same mi, so the control channel performs repeated transmission on subframe 0 and/or subframe 5. Alternatively, when the uplink and downlink configurations are 0, subframe 1 and subframe 6 have the same mi, so the control channel performs repeated transmission on subframe 1 and/or subframe 6. For another example, when the uplink and downlink configurations are 1, subframe 0 and subframe 5 have the same mi, so the control channel performs repeated transmission on subframe 0 and/or subframe 5. Or, when the uplink and downlink configurations are 1, subframe 1, subframe 4, subframe 6, and subframe 9 have the same mi, so the control channel is in subframe 1, subframe 4, subframe 6, and subframe 9. One or more subframes are repeatedly transmitted.

For frame structure type 2, the UE does not know the uplink and downlink configuration when receiving the control channel, and therefore cannot determine the mi value of the subframe. To this end, the possible values of mi may be tried in a plurality of predetermined subframes to detect the control channel. If the control channel is repeatedly transmitted on one or more subframes with a subframe index of 5, the UE attempts a detection of the control channel by taking the possible mi value on the subframe 5. Further, the CFI of the subframe in which the control channel is transmitted is 3.

For another example, because the uplink and downlink configuration 0 to 6, subframe 1 and subframe 6 have the same mi. The control channel of the scheduling SIBy may be specified to be repeatedly transmitted on one or more subframes having subframe indices of 1 and/or 6. Further, the CFI of the subframe in which the control channel is transmitted is 2.

For another example, because the uplink and downlink configuration 2, 4, 5, 6, subframe 0, subframe 1, subframe 5, and subframe 6 have the same mi. If the base station is performing repeated transmission of the control channel, the uplink and downlink configuration is one of 2, 4, 5, and 6. In this case, the control channel for scheduling the SIBy may be specified to be 0, 1, 5, and 6 in the subframe index. The transmission is repeated on one or more subframes. Further, CFI=2.

The MBSFN subframe configuration is included in the System Information Block Type x (SIBx). Such as x=2. For the FDD system, the CFI of the subframe in which the control channel of the SIBx is scheduled is CFI=2. Or, scheduling the control channel of the SIBx in subframes 0, 4, 5, The transmission is repeated on one or more subframes in 9. Further, the CFI=3 of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 4, 5, 9.

For the TDD system, the subframe of the control channel of the SIBx is scheduled to have a CFI=2. Alternatively, the subframe of the control channel of the SIBx is scheduled to have CFI = 2, and the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes having the same mi. Since the UE knows the uplink and downlink configuration when detecting the SIBx, the UE also knows that the mis of those subframes are the same. Alternatively, the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes of the subframes 0, 1, 5, 6 having the same mi. Further, the CFI of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 1, 5, and 6.

The present embodiment can be guaranteed to be the same by the total number of CCEs and the first parameter in each of a plurality of subframes for repeatedly transmitting the control channel by the above-described special application examples 1, 2, 3 and 2.

The present application can determine n ₀ or n ₀ , n _l5 , n _{il o} according to any one of the three methods involved in the formulas 4, 5, and 6. Specifically, in the embodiment, the foregoing formula 4 and formula 5 can be used. Any one of Formula 6 or its extended manner determines n _Q or ηο, , ... These are within the scope easily understood by those skilled in the art, and are not described herein again.

It should be noted that the foregoing embodiment is mainly directed to the transmission of the control channel in multiple subframes. In a specific implementation process, the control channel may also perform multiple transmissions in each subframe of one or more subframes. , that is, repeated transmission in the frequency domain. When the control channel repeats transmission multiple times within each subframe, the control channel that is repeatedly transmitted in each subframe has a fixed offset in the first parameter in the subframe. For example, in one subframe, the control channel performs one-time repeated transmission, and the first parameter c _Q of the first repeated transmission of the control channel in the repeated transmission of the control channel may be determined according to the previous embodiment. A similar method determines, and the first parameter CfCo+offset of the control channel of the second repeated transmission in the M repeated transmission control channels, where offset is a preset fixed offset value, similarly, M repetitions The first parameter c^Ci.j+offset, i=l, 2, , M of the control channel of the ith repeated transmission in the transmitted control channel.

The present application implements the same first parameter used for enhanced transmission of a control channel in each subframe within a plurality of subframes and/or ensures that the control channel has the same physical resource element location for enhanced transmission in each subframe of the plurality of subframes. It is convenient for scheduling implementation and reducing the complexity of UE detection.

3 is a block diagram of another embodiment of a base station of the present application. The base station of the present embodiment includes but is not limited to a processor 31, a transmitter 32, a receiver 33, and the like connected through a bus, where the transmitter 32 is configured to transmit channels and data. The receiver 33 is configured to receive channels and data, and the processor 31 is used for data, etc. Comprehensive processing.

In this embodiment, the processor 31 is configured to determine a plurality of subframes for performing enhanced transmission on the control channel. The transmitter 32 is configured to perform enhanced transmission on the control channel in multiple subframes determined by the processor 31. The enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

It should be noted that the transmitter 32 transmits a control channel on each of the plurality of subframes, and the first parameter used for transmitting the control channel in each of the plurality of subframes is the same, wherein the first parameter is The number of the control channel element or the number of the control channel element. For example, the first parameter is the number of the starting control channel element.

In particular, the first parameter used by the transmitter 32 to transmit the control channel on each of the plurality of subframes is predetermined; or the transmitter 32 transmits the control channel for each of the plurality of subframes. A parameter is determined based on a predetermined functional relationship.

In a specific implementation process, the processor 31 is configured to: determine, according to a predetermined index, a first parameter used by each of the multiple subframes to transmit a control channel; or, determine, according to two predefined indexes, multiple subframes. The first parameter used for transmitting the control channel on each subframe in the frame; or determining the first parameter used for transmitting the control channel in each of the plurality of subframes according to a predetermined index and a predetermined total number of CCEs.

It should be noted that, in the process of processing the number of the control channel element, the processor 31 specifies a predetermined index of one subframe, where a predetermined one subframe may be: the first one of the multiple subframes. p subframes, where p is a predetermined integer; or, a subframe having a smallest total number of CCEs among the plurality of subframes; or, a qth subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, Where q is a predetermined integer.

The processor 31 processes, in the process of processing the number of the control channel element, one of the two indexes specified in advance is an index of the first predetermined one subframe, wherein the first predetermined one subframe may be: The pth subframe in the subframe, where p is a predetermined integer; or, the subframe index of the subframe having the smallest total number of CCEs among the plurality of subframes. Or, the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

Similarly, the other one of the two predetermined indexes is an index of a second predetermined one subframe, wherein the second predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or, a w-th subframe of the subframe having the smallest total number of CCEs among the plurality of subframes, where w is A predetermined integer. The predetermined total number of CCEs is the total number of CCEs in the subframes having the smallest or largest total number of CCEs in the plurality of subframes.

It should be noted that the first parameter of this embodiment may satisfy one or more conditions. For example, the first parameter used by the transmitter 32 to transmit the control channel satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; Alternatively, the first parameter used by the transmitter 32 to transmit the control channel satisfies a certain range such that the control channel elements occupied by the control channel scheduling the proprietary data do not have resource overlap with the control channel elements in the common search space.

Specifically, when the transmitter 32 performs enhanced transmission on the control channel in multiple subframes, each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or each of the multiple subframes The frames are all MBSFN subframes; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

Optionally, when the transmitter 32 performs enhanced transmission on the control channel in multiple subframes: the subframe index in the multiple subframes belongs to the {0, 4, 5, 9} subframe, and the CFI OFDM symbols are used for control. a channel, and a subframe index in a plurality of subframes that does not belong to {0, 4, 5, 9} has two OFDM symbols for the control channel; or, for frame structure type 2, a sub-frame among the plurality of subframes A subframe with a frame index of {0, 5} has CFI OFDM symbols for the control channel, and a subframe in which the subframe index does not belong to {0, 5} has two OFDM symbols for control. channel. Among them, the value of CFI is 3 or 4.

In addition, on the carrier side, when the bandwidth of the carrier used by the control channel for the enhanced transmission of the control channel belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; And when the bandwidth of the carrier used by the transmitter 32 for the enhanced transmission of the control channel belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel. The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V.

The foregoing process achieves the same CCE number for enhancing transmission of the control channel in each subframe in multiple subframes to facilitate the scheduling implementation and reduce the complexity of UE detection. However, the above procedure does not guarantee that the control channel has the same physical resource element location for enhanced transmission in each subframe within a plurality of subframes. The transmitter 32 can be further configured if the control channel is to have the same physical resource element location for enhanced transmission in each of the plurality of sub-frames. For example, the transmitter 32 performs enhanced transmission on the control channel in multiple subframes, and the number of antenna ports of the common reference signal is the same in each of the plurality of subframes; and/or the OFDM symbols used for the control channel The same number; and / or, PHICH-Config is the same; and/or, the mi factor used to determine PHICH resources in frame structure type 2 is the same; and/or, the cyclic prefix used is the same; and/or PHICH-duration is normal.

One or more of the above embodiments are mainly described for the process of transmitting a control channel on the base station side. FIG. 4 is a flowchart of an embodiment of a method for receiving a control channel according to the present application. The receiving method in this embodiment includes but is not limited to the following steps.

5400. Determine a plurality of subframes of the control channel enhanced transmission.

In S400, the multiple subframes may be multiple subframes in the same radio frame, or may be multiple subframes composed of at least one subframe in each of the plurality of radio frames, which is not limited herein.

It should be noted that the UE may determine multiple subframes by using signaling received in advance, or according to a preset manner, or blind detection, and details are not described herein.

5401. Receive a control channel for enhanced transmission in multiple subframes, where the enhanced transmission is at least one of repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission.

It should be noted that, in S401: a control channel is received on each of the multiple subframes, and the first parameter used for receiving the control channel in each of the multiple subframes is the same, where the first parameter Is the number of the starting control channel element or the number of the control channel element. For example, the first parameter is the number of the starting control channel element.

In one embodiment: the first parameter used to receive the control channel in each of the plurality of subframes is predetermined; or the first parameter used to receive the control channel in each of the plurality of subframes It is determined according to a predetermined functional relationship.

In another implementation manner, the present application may determine, according to a predetermined index, a first parameter used by each of the multiple subframes to receive the control channel, or determine, according to two predefined indexes, the multiple subframes. The first parameter used by the control channel is received on each subframe; or the first parameter used to receive the control channel in each of the plurality of subframes is determined according to a predetermined index and a predetermined total number of CCEs.

For example, a predetermined index is a predetermined index of one subframe, wherein a predetermined one subframe is: a p-th subframe in a plurality of subframes, where p is a predetermined integer; or, multiple sub-frames a subframe having a minimum total number of CCEs in the frame; or, a qth subframe of the subframe having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

Optionally, one of the two indexes specified in this embodiment is an index of the first predetermined one subframe, where the first predetermined one subframe is: the p-th subframe in the multiple subframes, Where p is a predetermined integer; or, a subframe of a subframe having a smallest total number of CCEs among the plurality of subframes Or; the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer. Similarly, the other one of the two indexes specified in this embodiment is an index of a second predetermined one subframe, where the second predetermined one subframe is: the rth subframe in the multiple subframes, Where r is a predetermined integer; or, a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or, a w-th subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, Where w is a predetermined integer.

Further, the predetermined total number of CCEs is the total number of CCEs in the subframe having the smallest or largest total number of CCEs among the plurality of subframes.

It should be noted that, in this embodiment, the control channel that receives the enhanced transmission in multiple subframes: the first parameter used in the received control channel in each of the multiple subframes may satisfy a certain range, so that the scheduling The control channel element occupied by the control channel with data has no resource overlap with the control channel element occupied by the control channel scheduling the common data; or, the first parameter used for receiving the control channel in each of the plurality of subframes satisfies a certain determination The range is such that the control channel elements occupied by the control channel scheduling the proprietary data do not overlap with the control channel elements in the common search space. In another embodiment, the control channel that receives the enhanced transmission in the multiple subframes: each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or each of the multiple subframes The frames are all MBSFN subframes; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

For example, in a control channel that receives an enhanced transmission in multiple subframes: a subframe index in a plurality of subframes belongs to a subframe of {0, 4, 5, 9}, and CFI OFDM symbols are used for a control channel, and There are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 4, 5, 9} are used for the control channel; or, for the frame structure type 2, the subframe index in the plurality of subframes belongs to There are CFI OFDM symbols in the subframe of {0, 5} for the control channel, and there are two OFDM symbols in the subframe in which the subframe index in the plurality of subframes does not belong to {0, 5} is used for the control channel. Among them, the value of CFI is 3 or 4.

Receiving a control channel for enhanced transmission in a plurality of subframes in terms of a carrier received by the UE: when receiving a control channel for enhanced transmission on a carrier whose bandwidth belongs to the first bandwidth range, there are u in each subframe of the plurality of subframes The OFDM symbol is used for a control channel or a data channel; and when the control channel for enhanced transmission is received on a carrier whose bandwidth belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the plurality of subframes for the control channel or the data channel. . The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V. In addition, when receiving the control channel, the UE may consider that the control channel in the enhanced transmission is received in multiple subframes: within each subframe of the multiple subframes: the number of antenna ports of the common reference signal is the same; and/or The number of orthogonal frequency division multiplexing OFDM symbols of the control channel is the same; and/or, the configuration of the physical hybrid automatic repeat request indication channel is the same PHICH-Config; and/or, the frame structure type 2 is used to determine the PHICH resource. The mi factors are the same; and/or, the cyclic prefixes are the same; and/or PHICH-duration is normal. In this way, when the UE performs reception of the control channel in multiple subframes, the used resources and/or resource locations of the control channel in each subframe are the same.

The application will be further described below by way of specific embodiments.

When the control channel is repeatedly transmitted in a plurality of subframes, the timing of the plurality of subframes needs to be determined. The time of multiple subframes may be predetermined by the system or determined according to signaled parameters or blind detection. The control channel performs repeated transmissions on each of the determined plurality of subframes.

Specifically, the control channel candidate indexes used for transmitting the control channel in the search space corresponding to the aggregation level L in each of the plurality of subframes are the same. That is, the control channel candidate indices used for transmitting the control channel in the search space corresponding to the aggregation level L in any two of the plurality of subframes are the same. The control channel candidate index in the search space corresponding to the aggregation level is m, and the control channel candidate index used for transmitting the control channel in the search space corresponding to the aggregation level in each of the plurality of subframes is m. . Wherein, the value of m may be one or more fixed values set in advance, such as m=0, or pre-specified ^ {<W} or ¹ , ² , ³ . In other embodiments, the set of values of m may be specified to be related to the aggregation level L, or the set of values of m may be specified regardless of the aggregation level L.

In particular, the number of antenna ports of the common reference signal in each of the plurality of subframes is the same. When the base station transmits the repeated control channel, each of the plurality of subframes is reserved for the resource element used by the common reference signal according to the number of antenna ports 2. Or, when the base station sends the repeated control channel, each of the plurality of subframes is reserved for the resource element used by the common reference signal according to the number of antenna ports 4. Similarly, on the UE side, when receiving the repeated control channel, the UE considers each subframe in multiple subframes The resource element used for the common reference signal is reserved according to the number of antenna ports 2; or, when the UE receives the repeated control channel, the resources used by the common reference signal according to the number of antenna ports 4 in each of the plurality of subframes are considered. The element is reserved.

Optionally, for the frame structure type 1, the subframe index in the multiple subframes may belong to the {0, 4, 5, 9} subframe, and there are 3 or 4 OFDM symbols used for the control channel, and the multiple subframes There are 2 OFDM symbols in the subframe in which the subframe index does not belong to {0, 4, 5, 9} for the control channel. And for the frame structure type 2, three or four OFDM symbols in the subframe in which the subframe index in the plurality of subframes belongs to {0, 5} are used for the control channel, and the subframe index in the plurality of subframes does not belong to { There are 2 OFDM symbols in the subframe of 0, 5} for the control channel. It should be noted that since the configuration of the MBSFN subframe is set at the base station, the present embodiment can be applied to the case where the UE does not know the configuration of the MBSFN subframe, and receives the control channel. The control channel is as follows: a control channel for scheduling a system information block (e.g., SIB2) including an MBSFN subframe configuration or a control channel for scheduling a system information block (e.g., SIB1) including a TDD configuration.

For example, there are 3 OFDM symbols in each non-MBSFN subframe for the control channel, and 2 OFDM symbols in each MBSFN subframe in the multiple subframes are used for the control channel. For frame structure type 2, if subframe 1 and/or subframe 6 are also included in multiple subframes, there are 2 OFDM symbols in each of subframes 1 and/or subframe 6 of the plurality of subframes for the control channel. For example, when the bandwidth of the carrier belongs to the first bandwidth, there are U OFDM symbols in each of the multiple subframes for the control channel or the data channel, and when the bandwidth of the carrier belongs to the second bandwidth, There are V OFDM symbols in each of the sub-frames for the control channel or data channel. As described above, in the embodiment, the first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range are different bandwidth ranges, and u, v are natural numbers, and u Not equal to V.

In particular, for frame structure type 2, the mi factors for determining PHICH resources in each of the plurality of subframes are the same. The size of mi can be determined according to advance regulations. The mi of each of the plurality of subframes is determined by pre-specifying mi of the start subframe in the plurality of subframes in which the control channel repeatedly transmits. If the UE determines that the control channel repeatedly transmits the mi of the starting subframe in the multiple subframes, determining that the control channel repeatedly transmits the multiple subframes according to the same mi factor for determining the PHICH resource in each of the multiple subframes. Mi in other subframes. Alternatively, the mi factor for determining the PHICH resource in each of the plurality of subframes may be configured by signaling. In particular, the value of the present embodiment mi is specifically determined by the MIB notification configuration. In particular, when receiving the control channel of the system information block (such as SIB1) that includes the TDD configuration, the UE does not know the uplink and downlink configuration of the TDD, and therefore cannot determine the mi of the subframe that carries the control channel; The present embodiment may indicate in the MIB that the bearer of the control channel of the control channel including the system information block (such as SIB1) of the TDD configuration is scheduled. Correspondingly, on the UE side, after the UE detects the MIB, it may determine that the control channel of the system information block (SIB1) including the TDD configuration is scheduled. The mi of the transmitted subframe is repeated, thereby detecting the control channel according to the determined mi. In addition, the UE can blindly detect the control channel by attempting a possible mi value. For example, if the control channel scheduling SIB1 is transmitted on subframe 5, since the value of mi may be 0, 1, 2 in subframe 5, the UE may try different mi values to detect the PDCCH.

If the PHICH configuration in the MIB is unchanged, for the frame structure type 1, the PHICH configuration and the resource size of the subframes of different radio frames are the same. For frame structure type 2, if the PHICH configuration in the MIB is unchanged and the TDD uplink and downlink configuration is unchanged, the subframes of different radio frames have the same mi. In order to determine the first parameter, the first parameter is the number of the starting control channel element or the number of the control channel element, which can be realized in particular by the following procedure.

In the present embodiment, as described above, the first parameters used to transmit the control channel in each of the plurality of subframes are the same. That is, the first parameters used to transmit the control channel on any two of the plurality of subframes are the same. For example, the first parameter is the number of the starting control channel element, and the first parameter used to transmit the control channel in each of the plurality of subframes is _n . . Where n. It can be a pre-specified value, or n. It is determined according to a predetermined functional relationship. In particular, this embodiment can specify n. The value of the PDCCH occupied by the PDCCH for scheduling the dedicated data does not overlap or the CCE resource occupied by the PDCCH for scheduling the common data does not overlap or the resource collides, or the CCE resource occupied by the PDCCH for scheduling the dedicated data is not in the public. Search space. In particular, it is specified that n _{0 is} greater than 15.

Optionally, the first parameter is a number of a control channel element. In this embodiment, the numbers of the (aggregation level L) control channel elements used for transmitting the control channel in each of the plurality of subframes are the same. That is, the number of aggregation level L control channel elements used to transmit the control channel on any two of the plurality of subframes is the same. The number of the control channel element used to transmit the control channel on each of the plurality of subframes is ηο, , . . . , η _ζ-1 , where the number of the L control channel elements is n ₀ , n _l5 ...... , η^ may be a predetermined value, or ηο, ι^, ..., η^ is determined according to a predetermined functional relationship.

In this embodiment, each subframe in multiple subframes may be determined according to a predetermined index. The first parameter used to transmit the control channel.

For example, defining a predetermined value for an index A is predetermined. For example, the rule ^ 0. Again, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, a predetermined one subframe is the pth subframe of the plurality of subframes, where p is a predetermined integer. For another example, a predetermined one subframe is a subframe having a minimum or maximum total number of CCEs among a plurality of subframes of the repeated transmission control channel. Therefore, the subframe index of the subframe having the smallest or largest total CCE number among the plurality of subframes of the transmission control channel is repeatedly transmitted. For another example, the predetermined one subframe is the qth subframe in the subframe having the smallest or largest total CCE number among the plurality of subframes of the repeated transmission control channel. q is a predetermined integer, such as q=l. Therefore, it is a subframe index of the qth subframe in the subframe having the smallest total C C E number among the plurality of subframes of the transmission control channel.

The present embodiment can determine the number n of the initial control channel element used for control channel transmission in each of the plurality of subframes according to a predetermined index k. Or control channel element number no, ..., n _{il o}

Πι= Lx { (Y _k + m') mod LN _{CCE i} / ” }+ (Equation 7)

Where i is an integer 0,1..丄-1; is the number of the i+1th control channel element used for control channel transmission in each of the plurality of subframes; k is a predetermined index m is the control channel candidate index in the search space corresponding to the aggregation level L, and Μ = Ο, · · ·, Μ ⁽ " - Ι , Μ ^(£) is the control channel candidate in the search space corresponding to the predetermined aggregation level L Number of; for common search space = for user equipment UE specific search space and the UE is not configured with the carrier identification field = for

"UE^^^^/ , "c/ is the value of the carrier indication field when the UE is configured with the carrier identification field; mod is the modulo function;

/ ^ is rounded down to ^ccE; N _{cce k} is the total number of control channel elements of the subframe with index k; = ( ^ ) touch, ^ = 39827 , £) = 65537 , : "丽, 3⁄4NTI for wireless network The value of the temporary identifier RNTI. The first parameter used to transmit the control channel on the subframe.

The two pre-specified indexes are A ^ fe7. The value of A is predetermined. As specified / ^ 0. Or, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, one of the predetermined subframes is the p-th subframe of the plurality of subframes in which the control channel is repeatedly transmitted, and p is a predetermined integer. Such as p = l. Therefore, the subframe index of the p-th subframe in the plurality of subframes of the transmission control channel is repeatedly transmitted. The value of another predetermined index ^ is predetermined. As specified /^=0. Alternatively, the value of ^ is determined according to pre-rules. For example, it is a sub-frame index of a predetermined subframe. One of the predetermined subframes is a subframe having the smallest or largest total number of CCEs among the plurality of subframes of the repeated transmission control channel. Therefore / ^ is the subframe index of the subframe having the smallest or largest total number of CCEs among the plurality of subframes of the transmission control channel. For another example, the predetermined one subframe is the qth subframe in the subframe having the smallest or largest total CCE number among the plurality of subframes of the repeated transmission control channel, and q is a predetermined integer. Such as q = l. Therefore, ka is a subframe index of the qth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes in which the control channel is repeatedly transmitted.

According to the index and ^ of the two predetermined subframes, it is possible to determine n _Q or ηο, , ..., n _{il o} such as, n, = x { (Y _k + m') mod LN _CCE / ” }+ (Equation 8)

The parameters in Equation 8 are explained as Equation 7, and are not described here.

Of course, in this embodiment, the first parameter used for transmitting the control channel in each of the plurality of subframes may be determined according to a predetermined index and a predetermined total number of CCEs.

Specifically, it is predetermined that the value of a predetermined index is ^ A. For example, specify 0. Or, the value is determined according to the pre-rules. For example, it is a sub-frame index of a predetermined subframe. For example, one of the predetermined subframes is the p-th subframe of the plurality of subframes in which the control channel is repeatedly transmitted. p is a predetermined integer. For example, p=l. Therefore, the subframe index of the p-th subframe in the plurality of subframes of the transmission control channel is repeatedly transmitted. The pre-specified total number of CCEs is Wc _CE . The WCCE may be equal to the total number of CCEs in the subframes having the smallest or largest total CCE number among the multiple subframes. For example, suppose there are R subframes for control channel transmission, and Wcc _E = _m i _n { Wc _CE , , where r = o, l, , R-1. Min ( ) is the minimum function, which is the total number of CCEs in the r+1th subframe in the R subframes used for control channel repetition transmission. Or, W _CCE = _min, where F ₀山₅ R_i _o ^ is a subframe index of the r+1th subframe in the R subframes used for control channel repetition transmission.

According to a predetermined subframe index and WCCE of one subframe, n _Q or ηο, , . . . , n _{il o} can be determined.

^口, ΐΰ= _χ { (Y _k + m') mod [N _CCE /L\ }+ i (Equation 9)

The parameters in Equation 9 are explained as Equation 7, and are not described herein.

It should be noted that, on the UE side, the UE may try to detect the control channel by using a possible aggregation level and possible control channel candidates under the aggregation level. Further, if the UE does not know the number of the multiple subframes or the number of repetitions for controlling the channel enhanced transmission when the UE detects the control channel, the UE may further The number of possible multiple subframes or the number of repetitions is attempted to detect the control channel.

If the control channel is a schedule for SIB1 or a system information block containing a TDD configuration. For frame structure type 1, the CFI of the subframe in which the control channel is transmitted is 2, or the control channel is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, CFI = 3 of the subframe in which the control channel is transmitted on one or more of the subframes 0, 4, 5, 9. For frame structure type 2, the CFI of the subframe in which the control channel is transmitted is 2. Alternatively, the control channel is repeatedly transmitted on subframes 0 and/or 5. Further, CFI = 3 of the subframe in which the control channel is transmitted on one or more of subframes 0 and/or 5. Alternatively, the control channel is repeatedly transmitted on subframes 0 and/or 5, and the control channel may also be repeatedly transmitted on subframes 1 and/or 6. CFI=3 of a subframe in which a control channel is transmitted on one or more of subframes 0 and/or 5, and a subframe of a control channel is transmitted on one or more of subframes 1 and/or 6 CFI=2.

The MBSFN subframe configuration is included in the system information block type X, such as x=2. For the FDD system, the subframe of the control channel of the SIBx is scheduled to have a CFI=2. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on one or more of the subframes 0, 4, 5, 9. Further, the CFI of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 4, 5, and 9. For the TDD system, the subframe of the control channel of the SIBx is scheduled to have a CFI=2. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on subframes 0 and/or 5. Further, the CFI of the subframe of the control channel of the scheduling SIBx is transmitted on one or more of the subframes 0 and/or 5. Alternatively, the control channel of the scheduling SIBx is repeatedly transmitted on subframes 0 and/or 5, and the control channel scheduling the SIBx may also be repeatedly transmitted on subframes 1 and/or 6. Transmitting CFI=3 of a subframe of a control channel scheduling SIBx on one or more of subframes 0 and/or 5, transmitting SIBx scheduling on one or more subframes 1 and/or 6 The CFI of the subframe of the control channel is 2.

It should be noted that, due to the total number of CCEs in one subframe and the number of antenna ports of the common reference signal in the subframe, the number of OFDM symbols used for the control channel, PHICH-Config, and the mi factor determining the PHICH resource (for example, For one or more correlations in the frame structure type 2), therefore, if there are different total CCE numbers in two subframes in multiple subframes, the manner of determining the number of the control channel element by using the above embodiment does not Guaranteed control channel for transmission on each of a plurality of subframes The location of resource elements mapped on physical resources is the same.

As described above, the present embodiment will make the resource element positions mapped on the physical resources of the control channel uploaded in each of the plurality of subframes the same in the following manner.

It should be noted that for frame structure type 2, the PHICH resource size of each subframe is related to mi, so that the total number of CCEs in each subframe is related to mi of the subframe.

In order to make the control element mapped on each of the plurality of subframes have the same resource element position on the physical resource, each of the plurality of subframes may be set to meet one or more of the following provisions:

Rule 6: PHICH duration in each of the multiple subframes is normal;

Rule 7: Each of the multiple subframes uses the same cyclic prefix.

In the method for transmitting a control channel according to this embodiment, the control channel may be transmitted in each of the plurality of subframes according to one or more of the above provisions. Generally, each of the plurality of subframes satisfies at least the foregoing requirements. 1 to regulation 4. Accordingly, on the UE side, reception of the control channel can be performed in each of the plurality of subframes in accordance with one or more of the above provisions.

It should be noted that, in Table 2, for the frame structure type 2, the mi factor is in different uplink and downlink configurations and values in different subframes: Uplink and downlink configuration subframe index i

0 1 2 3 4 5 6 7 8 9

0 2 1 - - - 2 1 - - -

1 0 1 - - 1 0 1 - - 1

2 0 0 - 1 0 0 0 - 1 0

3 1 0 - - - 0 0 0 1 1

4 0 0 - - 0 0 0 0 1 1

5 0 0 - 0 0 0 0 0 1 0

6 1 1 - - - 1 1 - - 1

Table 2: mi factor of frame structure type 2

As shown in Table 2 above, when the subframe k is configured in different uplink and downlink configurations, the value of mi may be different. For example, when the uplink and downlink configurations are 0, mi of subframe 0 is equal to 2; when the uplink and downlink configuration is 1, the mi of subframe 0 is equal to 0; when the uplink and downlink configuration is 3, mi of subframe 0 is equal to 1. For the same uplink and downlink configuration, the values of mi in different subframes may also be different. For example, when the uplink and downlink configurations are 0, mi of subframe 0 is equal to 2, and mi of subframe 1 is equal to 1.

For the frame structure type 2, the user equipment does not know the uplink and downlink configuration when receiving the control channel, and therefore cannot determine the mi value of the subframe. To this end, the possible values of mi may be tried in a plurality of predetermined subframes to detect the control channel. If the control channel is repeatedly transmitted on one or more subframes whose subframe index is 5, the UE attempts the detection of the control channel by taking the possible mi value on the subframe 5. Further, the CFI of the subframe in which the control channel is transmitted is 3. As another example, since the uplink and downlink configurations are 0 to 6, subframe 1 and subframe 6 have the same mi. The control channel scheduling the SIBy may be specified to be repeated on one or more subframes with subframe indices of 1 and/or 6. Further, the CFI of the subframe in which the control channel is transmitted is 2.

For the TDD system, the subframe of the control channel of the SIBx is scheduled to have a CFI=2. Alternatively, the subframe of the control channel of the SIBx is scheduled to have CFI = 2, and the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes having the same mi. Because the UE already knows the uplink and downlink configuration when detecting the SIBx, the UE also knows that the mis of those subframes are the same. Alternatively, the control channel of the scheduling SIB2 is repeatedly transmitted on one or more subframes of the subframes 0, 1, 5, 6 having the same mi. Further, the CFI of the subframe in which the control channel of the SIBx is scheduled is transmitted on one or more of the subframes 0, 1, 5, and 6.

By one or more of the above-mentioned provisions 1 to 7, it is possible to ensure that the total number of CCEs in each of a plurality of subframes for repeatedly transmitting a control channel is the same. Specifically, the present embodiment can similarly determine n _Q or ηο, , , n _L according to any one of the above formulas 7, 8, and 9. In this embodiment, the method 9 or the extended manner thereof can be used. Determine n. Or ηο, ι^, , η _ζ-1 , which will be omitted from the scope which is easily understood by those skilled in the art. In summary, the present application ensures that the UE uses the first parameter and/or the used parameter in each subframe when the UE receives the control channel in multiple subframes by specifying 1-7 and Equations 7, 8, and 9. The resource locations are the same.

It should be noted that the foregoing embodiment is mainly directed to the transmission of the control channel in multiple subframes. In a specific implementation process, the control channel may also perform multiple transmissions in each subframe of one or more subframes. , that is, repeated transmission in the frequency domain. When the control channel repeats transmission multiple times in each subframe, the control channel repeatedly transmitted in each subframe within the subframe is within the subframe The starting control channel element number has a fixed offset. If in one subframe, the control channel is carried out

M times of repeated transmission, the initial control channel element number c ₀ of the control channel of the first repeated transmission in the M repeated transmission control channels can be determined in a similar manner to determining the number of the control channel element in the previous embodiment, and The initial control channel element number CfCo+offset of the control channel of the second repeated transmission in the M repeated transmission control channels, where offset is a preset fixed offset value, similarly, the repeated transmission The starting control channel element number of the control channel of the ith repeated transmission in the control channel

i=l,2, ,M

In particular, a specific implementation process of the UE detecting the control channel is given below.

Application example one

First, it should be noted that, on the base station side, the number of the plurality of subframes or the number of repetitions for controlling the repeated transmission of the channel is determined. For example, if the control channel performs 4 repeated transmissions in 4 subframes within one radio frame, the subframe indices of the 4 subframes are 0, 1, 5, and 6, respectively. It is specified that the aggregation level used for transmitting the control channel on each of the four subframes is L, that is, the transmission control channel occupies L control channel elements in each of the four subframes, and L may be equal to 4 Or 8. The CFI is set to 2 in each of the 4 subframes, the antenna port is 4, the system frame structure type is 2, the uplink and downlink configuration is 0, the carrier bandwidth is 20 MHz, and Ng=l. The total number of CCEs in the control region of each of the four subframes is WcCE'O , WcCE 'l , WcCE ^Ν CCE , 6 , and B ' is set according to the above parameters cCE'O =35 , ^CCE .l =39 , =35 W _CCE , _{6 =} 39

The UE detects the control channel by attempting a possible aggregation level and possible control channel candidates under the aggregation level. The UE needs to determine the number of all control channel elements in each of the 4 subframes of the CCE for each control channel candidate for each aggregation level. In this embodiment, the setting of the UE

" _RNTI = 16, and determines n or ηο, ι^, , n _LA according to the method in one or more of the previous embodiments, and further, specifies that k is the subframe number of the first subframe of the four subframes, Therefore k=0, and, =niin( ^ ^CCE '° , N ccE , , Ν _CCE , ₅ 35

The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. The calculation is performed according to Equation 7, Equation 8, Equation 9, or its extended calculation method. The following examples are calculated according to Equation 9.

According to Equation 9, _ni = ^4x { ( ^y o + 0) mod L _CCE / 4j } ₊ i , and _{η is} calculated. Or _η . , _ηι , ...... , η ₃ are: n ₀ = 28, n ₂ = 30, n ₃ = 31. At this time, the UE may extract the control channel on the CCEs of the CCE numbers 28, 29, 30, 31 of each of the 4 subframes, and then perform information combining (such as soft information combining or soft demodulation combining) to detect and control. channel. If the control channel is not detected successfully:

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. Pass _ni = ^4x { (y.+i)m. d Lw _CCE /4"} ₊ 'Calculate _no or n ₀ , n , n ₃ are: n ₀ =0, n!=l, n ₂ = 2, n ₃ = 3 „ At this point, the UE can be in 4 subframes The CCE number of each subframe is 0, 1, 2, 3, and the control channel is extracted, and information is combined to detect the control channel. If the control channel is still not successfully detected:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 0 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 0, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 0 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 8 and PDCCH candidate 0. Calculate ₁₁₀ or n ₀ , n _l5 , n ₇ by 1 ₁ = ^8>< { ( ^} ^ ^{+ () (1} ^^ / ⁸ ”} ⁺ '': n ₀ =24, n ₁ =25,n ₂ =26, n ₃ =27, n ₄ =28, n ₅₌ 29,n ₆ =30, n ₇ =31. The UE can have a CCE number of 24, 25, 26, 27 in each of the 4 subframes. The control channel is extracted from the CCE of 28, 29, 30, 31, and information is combined to detect the control channel. If the control channel is still not successfully detected:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 1 extract the control channel, and in subframe 6, the aggregation level 8 and PDCCH candidate 1 are used to extract the control channel. by! ! The production ^ ^^^ ^^ calculates ^ or η ₀ , Πι, , η ₇ as: η ₀ =0, ηι=1, η ₂ = 2, η ₃ = 3, η ₄ = 4, η ₅ = 5, η ₆ = 6, η ₇ = 7. At this time, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, and 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the first application example, the order between the above multiple attempts may be arbitrarily changed, which is not limited herein.

In addition, when detecting the control channel, the UE generally does not know the number of repetitions used by the base station to perform repeated transmission of the control channel. At this time, the UE needs to control the channel transmission according to the number of repetitions of the repeated transmission of the control channel according to the number of repetitions. The aggregation level and control channel candidates detect the control channel. For example, the number of repeated transmissions of the control channel configured by the base station to the UE is N and M. UE repeats The number of times N attempts to detect the control channel on each of the corresponding plurality of subframes according to each aggregation level and each control channel candidate that can be supported by the number of repetitions. If the control channel is not successfully detected, the UE attempts to detect the control channel according to the repetition number M in each of the corresponding multiple subframes according to each aggregation level and each control channel candidate that can be supported by the repetition number.

In the foregoing manner, the first parameters obtained by the UE in each subframe of the multiple subframes are the same. An application example 2 is given below. According to the application example, the first parameter obtained by the UE in each subframe of the multiple subframes and the resource location used for control channel transmission are the same. The specific implementation of the application example 2 includes the following process.

Application example 2:

The frame structure type is 2, and the uplink and downlink configurations of TDD are 0. The number of times or the number of repetitions of the plurality of subframes used by the base station to control channel repetition transmission is determined. For example, the control channel performs four repetition transmissions in four subframes within one radio frame, and the subframe indexes of the four subframes are respectively 0. The mi in 5,0,5, 4 sub-frames are the same, such as mi=2. The first two subframes of the four subframes may be located in one radio frame, and the last two subframes of the four subframes are located in the next radio frame. It is specified that the aggregation level used for transmitting the control channel on each of the four subframes is L, that is, the transmission control channel occupies L control channel elements in each of the four subframes, where L may be equal to 4 or 8. 4, CFI=3 in each of the 4 subframes, 4 antenna ports, 20 MHz carrier bandwidth, Ng=l. The total number of CCEs in the control region of each of the four subframes is ^NCC , W _CCE , respectively. , ^CCE , 5 , then set ^Ν according to the above parameters. = ^CCE , = ₆₈ .

" _RNTI = ₁₆ and determines n or n ₀ , n _l5 ... , η ^ according to the calculation formula of one or more of the previous embodiments or its extension. In addition, this embodiment specifies k Is the subframe number of the first subframe of the 4 subframes, so k = 0. Also, W _CCE , ₀ , N _CCE , ₅ , N _CCE , ₀ , W _{CCE 5} ) _{= 68} . The following example is root

Calculated according to Equation 9. The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. According to Equation 9, pass { (y.+o) m. d Lw _CCE / 4"}" calculates _η or _η , _ηι , ... , as: _η . ₌₁₂ , _ηι=13 , _η2=14 , _η3=15 .

The UE may extract control on the CCEs with CCE numbers 12, 13, 14, 3115 in each of the 4 subframes. Channel, information is combined to detect the control channel. If the control channel is not detected successfully:

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. Calculate _no or n ₀ , n , n ₃ by _n = ^4x { ( ^y . ^{+ 1} ) ^md Lw _CCE /4"}+'': n. =16, n corpse 17, n ₂ =18, n ₃ =19. At this time, the UE may extract the control channel on the CCEs of the CCE numbers 16, 17, 18, 19 of each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 0 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 0, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 0 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 8 and PDCCH candidate 0. Calculate ₁₁₀ or η ₀ , Πι, , η ₇ by 1 ₁ = ^{8>< {} ( ^} ^ ^{+ ()} )" ^{1 (1} ^^ ^{/ 8} ”} ⁺ ': η ₀ =56, ηι=57,η ₂ =58, η ₃ =59, η ₄ =60, η ₅ =61, η ₆ =62, η ₇ =63. When J3⁄4,

The UE may extract the control channel on the CCEs of the CCE numbers 56, 57, 58, 59, 60, 61, 62, 63 of each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 1 extract the control channel, and in subframe 6, the aggregation level 8 and PDCCH candidate 1 are used to extract the control channel. By ^^ ^. "^^ ^" calculates ^ or n ₀ , n _l5 , n ₇ is: n ₀ =0, n ₁₌ l, n ₂ = 2, n ₃ = 3, n ₄ = 4, n ₅₌ 5, n ₆ =6, n ₇ =7. That is, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, and 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the application example 2, the sequence between the multiple attempts of the UE may be arbitrarily changed, which is not limited herein.

In addition, when detecting the control channel, the UE generally does not know the number of repetitions used by the base station to perform repeated transmission of the control channel. At this time, the UE needs to control the channel transmission according to the number of repetitions of the repeated transmission of the control channel according to the number of repetitions. The aggregation level and control channel candidates detect the control channel. For example, the number of repeated transmissions of the control channel configured by the base station to the UE is N and M. The UE attempts to detect the control channel according to the repetition number N for each aggregation level and each control channel candidate that can be supported by the repetition number in the corresponding plurality of subframes. If the control channel is not successfully detected, the UE repeats the number of times M At each of the corresponding multiple subframes, each control level and each control channel candidate that can be supported by the number of repetitions is attempted to detect the control channel.

The above describes a method for receiving a control channel by a UE. FIG. 5 is a block diagram of an embodiment of a user equipment of the present application. The user equipment of this embodiment includes but is not limited to the determining module 51, the receiving module 52, and the processing module 53.

The determining module 51 is configured to determine a plurality of subframes of the control channel enhanced transmission. The receiving module 52 is configured to receive, in a plurality of subframes determined by the determining module 51, a control channel for enhancing transmission, where the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission. .

It should be noted that, in this embodiment, the receiving module 52 receives the control channel in each of the multiple subframes, and the first parameters used to receive the control channel in each of the multiple subframes are the same, where the The first parameter is the number of the starting control channel element or the number of the control channel element.

Specifically, the first parameter used by the receiving module 52 to receive the control channel in each of the multiple subframes is predetermined; or, the receiving module 52 receives the control channel in each of the multiple subframes. The first parameter is determined according to a predetermined functional relationship.

The processing module 53 is configured to determine, according to a predetermined index, a first parameter used by each of the plurality of subframes to receive the control channel, or determine, according to the two preset indexes, the receiving of each of the multiple subframes. And determining, by the first parameter used by the control channel, a first parameter used for receiving the control channel in each of the plurality of subframes according to a predetermined index and a predetermined total number of CCEs.

In a specific implementation process, one of the two preset indexes is an index of a first predetermined one subframe, where the first predetermined one subframe is: a p-th subframe in the multiple subframes, Wherein p is a predetermined integer; or, a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or, a qth subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, Where q is a predetermined integer. Similarly, another index of the two predetermined indexes is an index of a second predetermined one subframe, wherein the second predetermined one subframe is: the rth subframe of the plurality of subframes, where r is a predetermined integer; or a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or, a w-th subframe of the subframe having the smallest total number of CCEs among the plurality of subframes, where w is A predetermined integer.

Optionally, an index specified in advance in this embodiment is an index of a predetermined one subframe, where a predetermined one subframe is: a p-th subframe in multiple subframes, where p is a predetermined whole a number; or a subframe having a smallest total number of CCEs among the plurality of subframes; or a qth subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer. The predetermined total number of CCEs is the total number of CCEs in the subframe having the smallest or largest total CCE number among the plurality of subframes.

It should be noted that the receiving module 52 receives the enhanced transmission control channel in multiple subframes: the first parameter used by the receiving control channel in each of the multiple subframes satisfies a certain range, so that the scheduling is exclusive. The control channel element occupied by the control channel of the data has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or, the first parameter used for receiving the control channel in each of the plurality of subframes satisfies a certain The range is such that the control channel elements occupied by the control channel scheduling the proprietary data do not have resource overlap with the control channel elements in the common search space.

In particular, the receiving module 52 receives the enhanced transmission in a plurality of subframes: in each of the plurality of subframes: the common reference signal has the same number of antenna ports; and/or is used for orthogonality of the control channel The number of frequency division multiplexed OFDM symbols is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or, the mi factor for determining the PHICH resource in frame structure type 2 is the same; / or, the cyclic prefix used is the same; and / or PHICH-duration is normal. Thus, when the UE performs reception of the control channel in a plurality of subframes, the used resources and/or resource locations of the control channel in each subframe are the same.

Specifically, the receiving module 52 receives the enhanced transmission control channel in multiple subframes: each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or, each of the multiple subframes The frames are all MBSFN subframes; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

Specifically, the receiving module 52 receives the enhanced transmission in the control channel in multiple subframes: the subframe index in the plurality of subframes belongs to the {0, 4, 5, 9} subframe, and the CFI OFDM symbols are used in the control channel. And two subframes in the subframes that do not belong to {0, 4, 5, 9} have two OFDM symbols for the control channel; or, for frame structure type 2, subframes in the multiple subframes A subframe in which the index belongs to {0, 5} has CFI OFDM symbols for the control channel, and a subframe in which the subframe index in the plurality of subframes does not belong to {0, 5} has two OFDM symbols for the control channel. . Among them, the value of CFI is 3 or 4.

Optionally, when the receiving module 52 receives the enhanced transmission control channel on the carrier whose bandwidth belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; When a control channel for enhanced transmission is received on a carrier of the second bandwidth range, there are V OFDM symbols in each subframe of the plurality of subframes for the control channel or the data channel. The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other. U and V are natural numbers, and U is not equal to V.

" _RNTI = 16, and determines n. or n., n, η _ζ-1 according to the method in one or more of the previous embodiments. In addition, it is specified that k is the subframe number of the first subframe of the four subframes. , so k=0, and, =niin( ^ ^CCE '° , N ccE , , Ν _CCE , ₅ 35

The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. Calculate according to the calculation method of Equation 9, such as by =4>< { ₊ 0) ₁ ^ ^^ / 4"}" to get ₁₁ or _11. , ₁₁₁ , ... as: _n _{= = 28} _Ni=29 , _n _ _{30 ?} n ₃ = 31. At this time, the UE may extract the control channel on the CCEs of CCE numbers 28, 29, 30, 31 of each of the four subframes, and then perform information combining ( For example, soft information combining or soft demodulation combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. Calculate according to the calculation method of Equation 9, as passed { 0 i) m. d Lw _∞E / 4" Calculate _n . Or _n . , _ni , · .. · .. , _n3 is: _n . ₌₀ , _ni=1 , _n2=2 , _n3=3 . at this time,

The UE may extract the control channel on the CCEs with CCE numbers 0, 1, 2, 3 in each of the 4 subframes, and perform information combining to detect the control channel. If the control channel is still not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 0 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 0, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 0 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 8 and PDCCH candidate 0. 9 is calculated according to the formula calculation, such as by calculating ^ ^ ^ ^^ Videos or ^^ ...... A is: _n. ₌₂₄ , _ni=25 , _n2=26 , _n3=27 , n ₄ =28, n ₅₌ 29, n ₆ =30, n ₇ =31. The UE may extract the control channel on the CCEs of CCE numbers 24, 25, 26, 27, 28, 29, 30, 31 of each of the 4 subframes, and perform information combining to detect the control channel. If the control channel is still not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 1 extract the control channel, and in subframe 6, the aggregation level 8 and PDCCH candidate 1 are used to extract the control channel. And according to the calculation method of Equation 9, the calculation is as follows.

Ιι=1, η ₂ = 2, η ₃ = 3, η ₄ = 4, η _{5 =} 5, η ₆ = 6, and η ₇ = 7. At this time, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, and 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the third application example, the order between the above multiple attempts may be arbitrarily changed, which is not limited herein.

In addition, when detecting the control channel, the UE generally does not know the number of repetitions used by the base station to perform repeated transmission of the control channel. At this time, the UE needs to control the channel transmission according to the number of repetitions of the repeated transmission of the control channel according to the number of repetitions. The aggregation level and control channel candidates detect the control channel. For example, the number of repeated transmissions of the control channel configured by the base station to the UE is N and M. The UE attempts to detect the control channel according to the number of repetitions N in each of the corresponding multiple subframes according to each aggregation level and each control channel candidate that can be supported by the repetition number. If the control channel is not successfully detected, the UE attempts to detect the control channel according to the repetition number M in each corresponding subframe according to each aggregation level and each control channel candidate that can be supported by the repetition number.

In the foregoing manner, the first parameter obtained by the UE in each subframe of the multiple subframes is the same. An application example 4 is given below, according to the application example, the first parameter obtained by the UE in each subframe of multiple subframes The resource locations used for control channel transmission are the same. The specific implementation of the fourth application example includes the following process. Application example four:

" _RNTI = ₁₆ and determines n or n ₀ , n _l5 ... , η ^ according to the calculation formula of one or more of the previous embodiments or its extension. In addition, this embodiment specifies k Is the subframe number of the first subframe of the 4 subframes, since j3⁄4 k=0. Also, WccE'o , W _{CCE 5} , N _CCE , ₀ , N _CCE , ₅ ) ₌₆₈ .

The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. The calculation is performed according to the calculation method of Equation 9, such as by { (y.+o) m. d Lw _CCE / 4"}" calculates _η or _η , _ηι , ... , as: _η . ₌₁₂ , _ηι=13 , _η2=14 , _η3=15 .

The UE may extract the control channel on the CCEs of the CCE numbers 12, 13, 14, 3115 of each of the 4 subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. And according to the calculation method of Equation 9, the calculation is as follows. _{1 9} .

At this time, the UE may extract the control channel on the CCEs with the CCE numbers of 16, 17, 18, 19 in each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 0 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 0, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 0 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 8 and PDCCH candidate 0. According to the calculation method of Equation 9, the calculation is performed, for example, by ^^^^^^^^^^ A is: _n . ₌₅₆ , _ni=57 , _n2=58 , _3⁄4 ₌₅ 9, n ₄ =60, n ₅ =61, n ₆ =62, n ₇ =63. At this time, the UE may extract the control channel on the CCEs of the CCE numbers 56, 57, 58, 59, 60, 61, 62, 63 of each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 1 extract the control channel, and in subframe 6, the aggregation level 8 and PDCCH candidate 1 are used to extract the control channel. The calculation is performed according to the calculation method of Equation 9, such as by n _{i =} 8x { (y. + i) m. d |_w _CCE / 8"}+ z calculates _n . Or _no , _ni , , n ₇ are: n ₀ =0, n ₁₌ l, n ₂ = 2, n ₃ = 3, n ₄ = 4, n _{5 =} 5, n ₆ = 6, n ₇ = 7. That is, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the fourth application example, the sequence between the multiple attempts of the UE may be arbitrarily changed, which is not limited herein.

In addition, for the specific implementation process of the UE in this embodiment, please refer to the description of the method for receiving the control channel in the foregoing embodiment, which is not described in the scope easily understood by those skilled in the art. 6 is a block diagram of another embodiment of a user equipment of the present application. The user equipment of the present embodiment includes but is not limited to a processor 61, a receiver 62, and a transmitter 63, wherein the processor 61, the receiver 62, and the transmitter 63 are between Connected via a bus.

In this embodiment, the processor 61 is configured to determine a plurality of subframes of the control channel enhanced transmission. The receiver 62 is configured to receive, in a plurality of subframes determined by the processor 61, an enhanced transmission control channel, where the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission. .

It should be noted that, in this embodiment, the receiver 62 receives the control channel in each of the plurality of subframes, and the first parameters used to receive the control channel in each of the plurality of subframes are the same, wherein the first parameter is the same. The first parameter is the number of the starting control channel element or the number of the control channel element.

Specifically, the first parameter used by the receiver 62 to receive the control channel in each of the plurality of subframes is predetermined; or, the receiver 62 receives the control channel for each of the plurality of subframes. The first parameter is determined according to a predetermined functional relationship.

The processor 61 is further configured to determine, according to a predetermined index, a first parameter used by each of the plurality of subframes to receive the control channel, or determine, according to the two preset indexes, each subframe of the multiple subframes. And receiving, by the first parameter used by the control channel, the first parameter used for receiving the control channel in each of the plurality of subframes according to a predetermined index and a predetermined total number of CCEs.

Optionally, an index specified in advance in this embodiment is an index of a predetermined one subframe, where a predetermined one subframe is: a p-th subframe in the plurality of subframes, where p is a predetermined integer; or a subframe having a smallest total number of CCEs among the plurality of subframes; or a qth subframe of the subframes having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer. Among them, the predetermined total CCE The number is the total number of CCEs in a subframe having the smallest or largest total number of CCEs among the plurality of subframes.

It should be noted that the receiver 62 receives the enhanced transmission control channel in multiple subframes: the first parameter used by the receiving control channel in each of the multiple subframes satisfies a certain range, so that the scheduling is exclusive. The control channel element occupied by the control channel of the data has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or, the first parameter used for receiving the control channel in each of the plurality of subframes satisfies a certain The range is such that the control channel elements occupied by the control channel scheduling the proprietary data do not have resource overlap with the control channel elements in the common search space.

In particular, the receiver 62 receives the enhanced transmission control channel in the plurality of subframes: within each of the plurality of subframes: the common reference signal has the same number of antenna ports; and/or is used for orthogonality of the control channel The number of frequency division multiplexed OFDM symbols is the same; and/or, the physical hybrid automatic repeat request indication channel is configured with the same PHICH-Config; and/or, the mi factor for determining the PHICH resource in frame structure type 2 is the same; / or, the cyclic prefix used is the same; and / or PHICH-duration is normal. Thus, when the UE performs reception of the control channel in a plurality of subframes, the used resources and/or resource locations of the control channel in each subframe are the same.

Specifically, the receiver 62 receives the enhanced transmission control channel in multiple subframes: each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or each of the multiple subframes The frames are all MBSFN subframes; or for frame structure type 2, each of the plurality of subframes is an MBSFN subframe, or a subframe 1, or a subframe 6.

Specifically, the receiver 62 receives the enhanced transmission in the control channel in the plurality of subframes: the subframe index in the plurality of subframes belongs to the {0, 4, 5, 9} subframe, and the CFI OFDM symbols are used in the control channel. And two subframes in the subframes that do not belong to {0, 4, 5, 9} have two OFDM symbols for the control channel; or, for frame structure type 2, subframes in the multiple subframes A subframe in which the index belongs to {0, 5} has CFI OFDM symbols for the control channel, and a subframe in which the subframe index in the plurality of subframes does not belong to {0, 5} has two OFDM symbols for the control channel. . Among them, the value of CFI is 3 or 4.

Optionally, when the receiver 62 receives the enhanced transmission control channel on the carrier whose bandwidth belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; When a control channel for enhanced transmission is received on a carrier of the second bandwidth range, there are V OFDM symbols in each subframe of the plurality of subframes for the control channel or the data channel. The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V. Application Example 5 First, it should be noted that, on the base station side, the number of multiple subframes or the number of repetitions for controlling channel repetition transmission is determined. For example, if the control channel performs 4 repeated transmissions in 4 subframes within one radio frame, the subframe indices of the 4 subframes are 0, 1, 5, and 6, respectively. It is specified that the aggregation level used for transmitting the control channel on each of the four subframes is L, that is, the transmission control channel occupies L control channel elements in each of the four subframes, and L may be equal to 4 Or 8. The CFI is set to 2 in each of the 4 subframes, the antenna port is 4, the system frame structure type is 2, the uplink and downlink configuration is 0, the carrier bandwidth is 20 MHz, and Ng=l. Record the total CCE in the control area of each of the 4 subframes

" _RNTI=16 , and determine _n or _n, . , _ni , , η _ζ-1 according to the method in one or more of the previous embodiments, and specify that k is a subframe of the first subframe of the four subframes Number, so k=0, and,

^ CCE =Πΐίη( ^ ^CCE '° , NCE , \ , ^CCE,5 , ^CCE'6) 2 35

The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. Calculate according to the calculation method of Equation 9, such as by ₁₁₁₌ 4>< { ₊ 0) ₁ ^^^/4"}" to obtain ₁₁ or _11. , ₁₁₁ , ... A is: _n . _{= 28} , η _ι=29 , _n _ _30? n ₃ = 31. At this time, the UE may extract the control channel on the CCEs of the CCE numbers 28, 29, 30, 31 of each of the four subframes, and then Perform information combining (such as soft information combining or soft demodulation combining) to detect the control channel. If the control channel is not detected successfully:

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. The calculation is performed according to the calculation method of Equation 9, such as by {(y.+i)m. dLw _CCE /4"}" calculates _η or _η , _ηι , ... , _η3 is: _η ₌₀ , _ηι=1 , _η2=2 , _η3=3 .

The UE may extract control on the CCEs with CCE numbers 0, 1, 2, 3 in each of the 4 subframes. Channels are combined to detect the control channel. If the control channel is still not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 0 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 0, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 0 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 8 and PDCCH candidate 0. The calculation is performed according to the calculation method of Equation 9, such as by _{ηι = 8} χ { σ. +ο)Draw d Lc _CCE /8”}+' to calculate _n . Or _n . , _ni , ... , are: ₌₂₄ , _n - ₂₅ ^ - ₂ ^ _3⁄4 = ₂₇ , n ₄ =28, n ₅₌ 29, n ₆ =30, n ₇ =31. The UE may extract the control channel on the CCEs of CCE numbers 24, 25, 26, 27, 28, 29, 30, 31 of each of the 4 subframes, and perform information combining to detect the control channel. If the control channel is still not detected successfully:

The UE continues to try to detect the control channel: the control channel is extracted according to the aggregation level 8 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 8 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 8 and PDCCH candidate 1 extract the control channel, and in subframe 6, the aggregation level 8 and PDCCH candidate 1 are used to extract the control channel. Calculate according to the calculation method of Equation 9, such as by η

η _{5 =} 5, η ₆ = 6, and η ₇ = 7. At this time, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, and 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the fifth application example, the order between the above multiple attempts may be arbitrarily changed, which is not limited herein.

Another application example is given below, and the specific implementation includes the following process.

Application Example 7:

The frame structure type is 2, and the uplink and downlink configurations of TDD are 0. The number of times or the number of repetitions of the plurality of subframes used by the base station to control channel repetition transmission is determined, such as the control channel being in 4 subframes within one radio frame Four repetitions are performed, and the sub-frame indexes of the four sub-frames are 0, 5, 0, and 5, respectively, and the mis in the four sub-frames are the same, such as mi=2. The first two subframes of the four subframes may be located in one radio frame, and the last two subframes of the four subframes are located in the next radio frame. It is specified that the aggregation level used for transmitting the control channel on each of the four subframes is L, that is, the transmission control channel occupies L control channel elements in each of the four subframes, where L may be equal to 4 or 8. 4, CFI=3 in each of the 4 subframes, 4 antenna ports, 20 MHz carrier bandwidth, Ng=l. The total number of CCEs in the control region of each of the four subframes is ^N , W _CCE , respectively. , ^CCE , 5 , then set ^Ncc = ^N ccw = 68 according to the above parameters.

" _{RNTI = 16} and determine _n according to the calculation formula of one or more of the previous embodiments or its extension. or n ₀ , n _l5 ... , η ^. Further, this embodiment specifies k Is the subframe number of the first subframe of the 4 subframes,

The UE attempts to detect the control channel: The control channel is extracted in the subframe 0 according to the aggregation level 4 and the PDCCH candidate 0. The control channel is extracted in the subframe 1 by using the aggregation level 4 and the PDCCH candidate 0, the control channel is extracted in the subframe 5 by using the aggregation level 4 and the PDCCH candidate 0, and the aggregation level 4 and the PDCCH candidate 0 are used in the subframe 6. Extract the control channel. The calculation is performed according to the calculation method of Equation 9, such as by n _{i =} 4x { (y. + o) m. d Lw _CCE / 4"}" calculates _η or _η , _ηι , ... , as: _η . ₌₁₂ , _ηι=13 , _η2=14 , ₌₁₅ .

The UE continues to attempt to detect the control channel: the control channel is extracted according to the aggregation level 4 and the PDCCH candidate 1 in the subframe 0, the control channel is extracted in the subframe 1 using the aggregation level 4 and the PDCCH candidate 1, and the aggregation is used in the subframe 5. Level 4 and PDCCH candidate 1 extract the control channel, and in subframe 6, the control channel is extracted using aggregation level 4 and PDCCH candidate 1. The calculation is performed according to the calculation method of Equation 9, such as by _ni= 4x { 0 ) m. d Lw _∞E / 4" Calculates _η . Or _η . , _ηι , ... , for: _{= 1 6} , _η corpse _{1 7} , _{= 1 8} , = _{1 9} . At this time, the UE may extract the control channel on the CCEs of the CCE numbers 16, 17, 18, 19 of each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

The UE continues to try to detect the control channel: according to aggregation level 8 and PDCCH candidate 0 in subframe 0 The control channel is extracted, the control channel is extracted by using the aggregation level 8 and the PDCCH candidate 0 in the subframe 1, and the control channel is extracted by using the aggregation level 8 and the PDCCH candidate 0 in the subframe 5, and the aggregation level 8 is used in the subframe 6. The control channel is extracted with PDCCH candidate 0. According to the calculation method of Equation 9, the calculation is performed, for example, by ^^^^^^^^^^ A is: _n . ₌₅₆ , _ni=57 , _n2=58 , _3⁄4 ₌₅ 9, n ₄ =60, n ₅ =61, n ₆ =62, n ₇ =63. At this time, the UE may extract the control channel on the CCEs of the CCE numbers 56, 57, 58, 59, 60, 61, 62, 63 of each of the four subframes, and perform information combining to detect the control channel. If the control channel is not detected successfully:

n _{1 =} l, n ₂ = 2, n ₃ = 3, n ₄ = 4, n _{5 =} 5, n ₆ = 6, and n ₇ = 7. That is, the UE may extract the control channel on the CCEs whose CCE numbers are 0, 1, 2, 3, 4, 5, 6, 7 in each of the four subframes, and perform a information combining detection control channel.

It should be noted that, in the application example 7, the sequence between the multiple attempts of the UE may be arbitrarily changed, which is not limited herein.

In addition, for the specific implementation process of the UE in this embodiment, refer to the detailed description of the method for receiving the control channel in the foregoing embodiment, which is not described in the scope easily understood by those skilled in the art.

Through one or more implementations of the present application, it is not difficult to understand that the present application determines a plurality of subframes in advance, and performs repeated transmission, spread spectrum transmission, and transmission time interval bundling transmission on the control channel in the multiple subframes. And the enhanced transmission mode such as power boost transmission, which facilitates mapping and detection on the determined subframes, and reduces the complexity of the system scheduling and the complexity of the detection. In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device implementations described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of this application.

Claims

Rights request

A transmission method of a control channel, characterized in that: the transmission method comprises: determining a plurality of subframes for performing enhanced transmission on a control channel;

The enhanced transmission is performed on the control channel in the plurality of subframes, wherein the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

The transmission method according to claim 1, wherein the enhancing transmission of the control channel in the plurality of subframes comprises:

Transmitting a control channel on each of the plurality of subframes, and using a first parameter for transmitting a control channel on each of the plurality of subframes; wherein the first parameter is an initial control The number of the channel element or the number of the control channel element.

3. The transmission method according to claim 2, comprising:

Determining, by a predetermined parameter, a first parameter used for transmitting a control channel in each of the plurality of subframes; or

The first parameter used to transmit the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

4. The transmission method according to claim 2 or 3, characterized in that:

Determining, according to a predetermined index, a first parameter used for transmitting a control channel on each of the plurality of subframes; or

Determining, according to two predetermined indexes, a first parameter used for transmitting a control channel on each of the plurality of subframes; or

A first parameter used to transmit a control channel on each of the plurality of subframes is determined based on a predetermined index and a predetermined total number of CCEs.

5. The transmission method according to claim 4, wherein:

The predetermined one index is an index of a predetermined one subframe, wherein the predetermined one subframe is:

a p-th subframe of the plurality of subframes, where p is a predetermined integer; or

a subframe having the smallest total number of CCEs among the plurality of subframes; or

The qth subframe of the subframe having the smallest total number of CCEs among the plurality of subframes, where q is a predetermined integer.

6. The transmission method according to claim 4, wherein:

The predetermined total number of CCEs is the total number of CCEs in the subframe having the smallest or largest total number of CCEs among the plurality of subframes.

7. The transmission method according to claim 4, wherein:

One of the two predetermined indexes is an index of a first predetermined one subframe, wherein the first predetermined one subframe is:

a subframe index of a subframe having a smallest total C C E number among the plurality of subframes; or

8. The transmission method according to claim 7, wherein:

The other of the two predetermined indexes is a second predetermined one subframe index, wherein the second predetermined one subframe is:

a rth subframe of the plurality of subframes, where r is a predetermined integer; or

The wth subframe in the subframe having the smallest total number of CCEs among the plurality of subframes, where w is a predetermined integer.

9. The transmission method according to any one of claims 2-8, characterized in that:

The first parameter used by the transmission control channel satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data has no resource overlap with the control channel element occupied by the control channel for scheduling the common data; or

The first parameter used by the transmission control channel satisfies a determined range such that the control channel elements occupied by the control channel scheduling the proprietary data do not have resource overlap with the control channel elements in the common search space.

10. The transmission method according to claim 1, wherein the enhanced transmission of the control channel in the plurality of subframes, in each of the plurality of subframes:

The number of antenna ports of the common reference signal is the same; and / or,

The number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and / or,

The physical hybrid automatic repeat request indication channel configuration PHICH-Config is the same; and/or, the mi factor used to determine the PHICH resource in frame structure type 2 is the same; and/or,

The same cyclic prefix is used; and / or, PHICH-duration is normal.

The transmission method according to claim 1, wherein the enhanced transmission of the control channel in the plurality of subframes:

Each of the multiple subframes is not a multimedia multicast single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or for frame structure type 2, multiple subframes Each subframe is an MBSFN subframe, or a subframe 1, or a subframe 6.

12. The transmission method according to claim 1, wherein the enhancing transmission of the control channel in the plurality of subframes:

A subframe in which the subframe index in the plurality of subframes belongs to {0, 4, 5, 9} has CFI OFDM symbols used for the control channel, and the subframe index in the multiple subframes does not belong to {0, There are two OFDM symbols in the subframe of 4, 5, 9} for the control channel;

Or, for the frame structure type 2, the subframe index of the plurality of subframes belongs to {0, 5}, and the CFI OFDM symbols are used for the control channel, and the subframe index in the multiple subframes is not There are two OFDM symbols in the subframe belonging to {0, 5} for the control channel;

Among them, the value of CFI is 3 or 4.

When the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel;

When the bandwidth of the carrier used for the enhanced transmission of the control channel belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel;

The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, u and V are natural numbers, and u is not equal to V .

A base station, the base station includes:

a determining module, configured to determine a plurality of subframes for performing enhanced transmission on the control channel;

And a sending module, configured to perform enhanced transmission on the control channel in the multiple subframes determined by the determining module, where the enhanced transmission is in a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission. At least one.

The base station according to claim 14, wherein the sending module is configured to: transmit a control channel on each of the plurality of subframes, and each of the multiple subframes The first parameters used to transmit the control channel on all subframes are the same; wherein the first parameter is the initial control The number of the channel element or the number of the control channel element.

The base station according to claim 15, comprising:

The first parameter used by the sending module to transmit the control channel in each of the multiple subframes is pre-defined; or

The first parameter used by the transmitting module to transmit the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

The base station according to claim 15 or 16, wherein the base station further includes a processing module, where the processing module is configured to:

18. The base station according to claim 17, wherein:

19. The base station according to claim 17, wherein:

20. The base station according to claim 17, wherein:

a subframe index of a subframe having a smallest total number of CCEs among the plurality of subframes; or

21. The base station according to claim 20, wherein:

The base station according to any one of claims 15 to 21, characterized in that:

The first parameter used by the sending module to transmit the control channel meets a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data does not overlap with the control channel element occupied by the control channel for scheduling the common data; or ,

The first parameter used by the transmitting module to transmit the control channel satisfies a certain range, so that the control channel element occupied by the control channel of the scheduling dedicated data has no resource overlap with the control channel element in the common search space.

The base station according to claim 14, wherein the sending module performs enhanced transmission on the control channel in the multiple subframes, and in each of the multiple subframes:

The same cyclic prefix is used; and / or,

PHICH-duration is normal.

The base station according to claim 14, wherein, when the transmitting module performs enhanced transmission on the control channel in the multiple subframes, each of the multiple subframes is not a multimedia multicast. Single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or for frame structure type 2, each of the multiple subframes is an MBSFN subframe, or a subframe 1, or a sub-frame Frame 6.

The base station according to claim 14, wherein the transmitting module performs enhanced transmission on the control channel in the plurality of subframes:

A subframe in which the subframe index in the plurality of subframes belongs to {0, 4, 5, 9} has CFI OFDM symbols used for the control channel, and the subframe index in the multiple subframes does not belong to {0, There are two sub-frames of 4, 5, 9} OFDM symbols are used for control channels;

Among them, the value of CFI is 3 or 4.

The base station according to claim 14, wherein the sending module is specifically configured to: when the bandwidth of a carrier used for performing enhanced transmission on the control channel belongs to a first bandwidth range, the multiple subframes There are u OFDM symbols in each subframe for the control channel or data channel;

27. A method for receiving a control channel, wherein the receiving method comprises: determining a plurality of subframes of a control channel enhanced transmission;

And receiving, in the plurality of subframes, a control channel for enhancing transmission, wherein the enhanced transmission is at least one of a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission.

The receiving method according to claim 27, wherein the receiving the enhanced control channel in the multiple subframes comprises:

Receiving a control channel on each of the plurality of subframes, and using a first parameter for receiving a control channel on each of the plurality of subframes; wherein the first parameter is a control channel The number of the element or the number of the control channel element.

The receiving method according to claim 28, comprising:

The first parameter used to receive the control channel in each of the plurality of subframes is predetermined; or

The first parameter used to receive the control channel on each of the plurality of subframes is determined based on a predetermined functional relationship.

30. The receiving method according to claim 28 or 29, wherein:

Determining, according to a predetermined index, a first parameter used by each of the plurality of subframes to receive a control channel; or

Determining, by using two predefined indexes, a first parameter used by each of the plurality of subframes to receive a control channel; or Determining, by a predetermined index and a predetermined total number of CCEs, a first parameter used for receiving a control channel in each of the plurality of subframes.

31. The receiving method according to claim 30, wherein:

32. The receiving method according to claim 30, wherein:

33. The receiving method according to claim 30, wherein:

34. The receiving method according to claim 33, wherein:

The receiving method according to claim 28, wherein the receiving the enhanced control channel in the plurality of subframes:

The first parameter used by the receiving control channel in each of the plurality of subframes satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data and the control channel occupied by the scheduling common data are controlled. Channel elements have no resource overlap; or, The first parameter used by the control channel in each of the plurality of subframes satisfies a determined range such that the control channel elements occupied by the control channel scheduling the dedicated data and the control channel elements in the common search space are not Resources overlap.

The receiving method according to claim 27, wherein the receiving the enhanced control channel in the plurality of subframes:

Within each of the plurality of subframes: the number of antenna ports of the common reference signal is the same; and/or the number of orthogonal frequency division multiplexing OFDM symbols used for the control channel is the same; and/or, physical mixing The automatic retransmission request indication channel is configured with the same PHICH-Config; and/or, the mi factor for determining the PHICH resource in the frame structure type 2 is the same; and/or the same cyclic prefix is used; and/or PHICH-duration Both are normal

Among them, the value of CFI is 3 or 4.

The transmission method according to claim 27, wherein the receiving the control channel for enhancing transmission in the multiple subframes further includes:

When receiving the control channel of the enhanced transmission on a carrier whose bandwidth belongs to the first bandwidth range, there are u OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel;

When receiving the control channel of the enhanced transmission on a carrier whose bandwidth belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the plurality of subframes for the control channel or the data channel;

The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the The first bandwidth range and the second bandwidth range do not intersect each other, U and V are natural numbers, and U is not equal to V.

40. A user equipment, wherein the user equipment comprises:

a determining module, configured to determine a plurality of subframes of the control channel enhanced transmission;

a receiving module, configured to receive, in the plurality of subframes determined by the determining module, a control channel for enhanced transmission, where the enhanced transmission is repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission At least one of them.

The user equipment according to claim 40, wherein the receiving module is specifically configured to:

Receiving a control channel on each of the plurality of subframes, and using a first parameter for receiving a control channel on each of the plurality of subframes; wherein the first parameter is an initial control The number of the channel element or the number of the control channel element.

The user equipment according to claim 41, comprising:

The first parameter used by the receiving module to receive the control channel in each of the multiple subframes is predetermined; or

The first parameter used by the receiving module to receive the control channel in each of the plurality of subframes is determined according to a predetermined functional relationship.

The user equipment according to claim 41 or 42, wherein the user equipment further includes a processing module, where the processing module is configured to:

Determining, by using two predefined indexes, a first parameter used by each of the plurality of subframes to receive a control channel; or

The first parameter used to receive the control channel on each of the plurality of subframes is determined based on a predetermined index and a predetermined total number of CCEs.

44. The user equipment of claim 43, wherein:

45. The user equipment of claim 43, wherein:

46. The user equipment of claim 43, wherein:

47. The user equipment of claim 46, wherein:

The user equipment according to claim 41, wherein the receiving module receives the enhanced transmission control channel in the multiple subframes:

The first parameter used by the receiving control channel in each of the plurality of subframes satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data and the control channel occupied by the scheduling common data are controlled. Channel elements have no resource overlap; or,

The first parameter used by the control channel in each of the plurality of subframes satisfies a determined range such that the control channel elements occupied by the control channel scheduling the dedicated data and the control channel elements in the common search space are not Resources overlap.

49. The user equipment according to claim 40, wherein the receiving module receives the enhanced transmission control channel in the multiple subframes:

The user equipment according to claim 40, wherein the receiving module receives the enhanced transmission control channel in the plurality of subframes:

Among them, the value of CFI is 3 or 4.

When receiving the control channel of the enhanced transmission on a carrier whose bandwidth belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel;

A base station, the base station includes:

a processor, configured to determine a plurality of subframes for performing enhanced transmission on the control channel;

And a transmitter, configured to perform enhanced transmission on the control channel in the multiple subframes determined by the processor, where the enhanced transmission is in a repetitive transmission, a spread spectrum transmission, a transmission time interval bundling transmission, and a power boost transmission. At least one.

The base station according to claim 53, wherein the transmitter is specifically configured to: transmit a control channel on each of the plurality of subframes, and each of the multiple subframes The first parameters used for transmitting the control channel on the subframes are the same; wherein the first parameter is controlled The number of the channel element or the number of the control channel element.

The base station according to claim 54, comprising:

Determining, by the transmitter, a first parameter used for transmitting a control channel on each of the plurality of subframes; or

The first parameter used by the transmitter to transmit the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

The base station according to claim 54 or 55, wherein the processor is further configured to:

57. The base station of claim 56, wherein:

58. The base station of claim 56, wherein:

59. The base station of claim 56, wherein:

60. The base station of claim 59, wherein:

61. A base station according to any of claims 54-61, characterized in that:

The first parameter used by the transmitter to transmit the control channel satisfies a certain range, so that the control channel element occupied by the control channel for scheduling the dedicated data does not overlap with the control channel element occupied by the control channel that schedules the common data; or ,

The first parameter used by the transmitter to transmit the control channel satisfies a determined range such that the control channel elements occupied by the control channel scheduling the proprietary data have no resource overlap with the control channel elements in the common search space.

62. The base station according to claim 53, wherein the transmitter performs enhanced transmission on a control channel in the multiple subframes, and in each of the multiple subframes:

The same cyclic prefix is used; and / or,

PHICH-duration is normal.

The base station according to claim 53, wherein, when the transmitter performs enhanced transmission on the control channel in the multiple subframes, each of the multiple subframes is not multimedia multicast. Single frequency network MBSFN subframe; or, each of the multiple subframes is an MBSFN subframe; or for frame structure type 2, each of the multiple subframes is an MBSFN subframe, or a subframe 1, or a sub-frame Frame 6.

The base station according to claim 53, wherein the transmitter performs enhanced transmission on the control channel in the plurality of subframes:

A subframe in which the subframe index in the plurality of subframes belongs to {0, 4, 5, 9} has CFI OFDM symbols used for the control channel, and the subframe index in the multiple subframes does not belong to {0, There are two OFDM symbols in the subframe of 4, 5, 9} for the control channel; Or, for the frame structure type 2, the subframe index of the plurality of subframes belongs to {0, 5}, and the CFI OFDM symbols are used for the control channel, and the subframe index in the multiple subframes is not There are two OFDM symbols in the subframe belonging to {0, 5} for the control channel;

Among them, the value of CFI is 3 or 4.

The base station according to claim 53, wherein the transmitter is specifically configured to: when the bandwidth of a carrier used for performing enhanced transmission on the control channel belongs to a first bandwidth range, the multiple subframes There are u OFDM symbols in each subframe for the control channel or data channel;

66. A user equipment, the user equipment comprising:

a processor, configured to determine a plurality of subframes of the control channel enhanced transmission;

a receiver, configured to receive, in the plurality of subframes determined by the processor, a control channel for enhanced transmission, where the enhanced transmission is repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, and power boost transmission At least one of them.

The user equipment according to claim 66, wherein the receiver is specifically configured to:

68. The user equipment according to claim 67, comprising:

The first parameter used by the receiver to receive the control channel in each of the plurality of subframes is predetermined; or

The first parameter used by the receiver to receive the control channel on each of the plurality of subframes is determined according to a predetermined functional relationship.

69. The user equipment according to claim 67 or 68, wherein the processor is used to:

Determining a control channel on each of the plurality of subframes according to two predetermined indexes The first parameter used; or

70. The user equipment of claim 69, wherein:

71. The user equipment of claim 69, wherein:

72. The user equipment of claim 69, wherein:

73. The user equipment of claim 72, wherein:

74. The user equipment according to claim 67, wherein the receiver receives a control channel for enhanced transmission in the plurality of subframes:

The first parameter used by the control channel in each of the plurality of subframes satisfies a certain range, so that the control channel elements occupied by the control channel for scheduling the dedicated data and the scheduling common data The control channel elements occupied by the control channel have no resource overlap; or,

75. The user equipment according to claim 66, wherein the receiver receives a control channel for enhanced transmission in the plurality of subframes:

76. The user equipment according to claim 66, wherein the receiver receives the enhanced transmission control channel in the plurality of subframes:

77. The user equipment according to claim 66, wherein the receiver receives a control channel for enhanced transmission in the plurality of subframes:

Among them, the value of CFI is 3 or 4.

When receiving the control channel of the enhanced transmission on a carrier whose bandwidth belongs to the second bandwidth range, there are V OFDM symbols in each subframe of the multiple subframes for the control channel or the data channel; The first bandwidth range and the second bandwidth range are predetermined bandwidth ranges, and the first bandwidth range and the second bandwidth range do not intersect each other, U and V are natural numbers, and U is not equal to V. .