CN106162897B

CN106162897B - Method, base station and user equipment for transmitting control information

Info

Publication number: CN106162897B
Application number: CN201510490569.5A
Authority: CN
Inventors: 王轶; 余政; 张向东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-05-15
Filing date: 2015-08-12
Publication date: 2020-02-14
Anticipated expiration: 2035-08-12
Also published as: CN106162897A

Abstract

The invention discloses a method for transmitting control information, a base station and user equipment. The method comprises the following steps: generating DCI according to a coverage enhancement feature parameter, wherein when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, or when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required by coverage enhancement; and sending the DCI to the UE through a control channel, so that the UE determines the position of the narrow band of the UE according to the narrow band position indication information when the DCI comprises the narrow band position indication information, or determines the position of the narrow band of the UE according to predetermined narrow band position information when the DCI does not comprise the narrow band position indication information. The method for transmitting the control information, the base station and the user equipment can improve the scheduling flexibility.

Description

Method, base station and user equipment for transmitting control information

Technical Field

The present invention relates to the field of communications, and more particularly, to a method, a base station, and a user equipment for transmitting control information.

Background

In a Long Term Evolution (LTE) system, data transmission needs to occupy a certain resource in a time-frequency domain. In the time domain, it refers to which time or subframe is transmitted; the resource in the frequency domain refers to on which subcarrier the transmission is made. Generally, a Physical layer data Channel for transmitting data, such as a Physical Downlink Shared Channel (PDSCH)/a Physical Uplink Shared Channel (PUSCH), is scheduled by a corresponding Physical layer control Channel, i.e., a Physical Downlink Control Channel (PDCCH)/an Enhanced Physical Downlink Control Channel (EPDCCH), and is multiplexed in the same subframe. That is, the scheduling information and the data are transmitted in the same subframe in the time domain; the case of resource allocation in the frequency domain is indicated by scheduling information in the control channel.

The internet of things means that various devices with certain sensing, calculating, executing and communication capabilities are deployed to acquire information of a physical world, and information transmission, cooperation and processing are realized through a network, so that a network for interconnecting people and objects and for interconnecting objects and things is realized. In short, the internet of things is to realize human-to-object, object-to-object, i.e. Machine-to-Machine (M2M) interconnection. To provide an LTE terminal having a cost comparable to that of a Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS) terminal, or even lower than that of a GSM/GPRS terminal, to replace a GSM/GPRS terminal applied in an M2M application, thereby replacing the GSM/GPRS network with an LTE network in an M2M application. In the standard topic Machine Type Communication (MTC) being discussed by 3GPP, a class of terminal devices specifically having low cost/complexity, low power consumption, and/or coverage enhancement features is introduced. As one of the technical means for reducing the cost/complexity of the MTC terminal, the receiving bandwidth of data and control signals that can be supported by the terminal is reduced, so that the processing capability of the MTC terminal with low cost only needs to process data, control and/or reference signals and the like within a relatively small bandwidth (e.g., 1.4MHz, 3MHz, or 5 MHz), thereby reducing the radio frequency and/or baseband cost of the MTC terminal. For example, for the MTC terminal, in view of reducing the cost of the MTC terminal, the MTC terminal can only process data within a smaller bandwidth (that is, a narrow band) in downlink data reception on a wideband carrier, and reduce the downlink data processing capability and data storage of the MTC terminal, thereby achieving cost saving and complexity reduction of the MTC terminal.

In order to enhance the coverage of the MTC terminal, the purpose of improving the coverage of a certain physical layer channel can be achieved by a repeated transmission method. If the EPDCCH is repeatedly sent 100 times in the time domain, the reliability of receiving the EPDCCH by the terminal can be improved. As a result, the terminal needs to merge and decode a large number of repeated EPDCCHs before obtaining the content of Downlink Control Information (DCI), so as to determine the resource allocation Information of the corresponding data channel. Thus, in the time domain, a time difference may be required for transmitting the control information and the corresponding data, and the time difference may be 1-2 ms. Moreover, in the case that the control channel needs to be repeatedly transmitted, the corresponding data channel may also need to be repeatedly transmitted, and different coverage enhancement requirements correspond to different repeated transmission times. For more flexible repeat transmission of control data, a subframe for data channel transmission may start at a certain subframe after the end of the repeat transmission of the corresponding control channel. That is, the control information and the data may not be transmitted within the same subframe, which may be referred to as cross-subframe scheduling.

Because the MTC terminal can only process one narrow band in one subframe, when a plurality of subframes repeatedly transmit data channels, cross-subframe scheduling is supported, and the MTC terminal needs to know the position of the narrow band of the first data channel associated with the control channel when transmitting data.

The location of the narrowband may be indicated by DCI in the control channel of the scheduling narrowband. However, in case of a need to improve coverage, a large number of repeatedly transmitted control channels may occupy a large amount of resources. Therefore, there is a need for a flexible scheduling scheme that does not incur large signaling overhead.

Disclosure of Invention

The embodiment of the invention provides a method for transmitting control information, a base station and user equipment, which can improve the scheduling flexibility.

In a first aspect, a method for transmitting control information is provided, including:

generating Downlink Control Information (DCI) according to a coverage enhancement characteristic parameter, wherein when the coverage enhancement characteristic parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, or when the coverage enhancement characteristic parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement characteristic parameter includes a coverage enhancement level or a repetition number required by coverage enhancement;

and sending the DCI to User Equipment (UE) through a control channel, so that the UE determines the position of a narrow band of a data channel of the UE according to the narrow band position indication information when the narrow band position indication information is included in the DCI, or determines the position of the narrow band of the data channel of the UE according to predetermined narrow band position information when the narrow band position indication information is not included in the DCI.

With reference to the first aspect, in a first possible implementation manner, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a position of a narrowband of the data channel of the UE relative to the control channel.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, when the DCI includes the narrowband position indication information, the narrowband subframe indication information includes cross-subframe scheduling indication information.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner, when the DCI includes the narrowband position indication information, the DCI employs DCI format 1A or a format with a length that is the same as that of DCI format 1A.

With reference to the first aspect or any one of the first to the third possible implementation manners of the first aspect, in a fourth possible implementation manner, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a position of a narrowband of a data channel of the UE relative to the control channel.

With reference to the first aspect or any one of the first to the fourth possible implementation manners of the first aspect, in a fifth possible implementation manner, the method further includes:

and sending the predetermined narrowband position information to the UE.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the sending the predetermined narrowband location information to the UE includes:

and sending the preset narrowband position information to the UE through high-layer signaling.

With reference to the fifth or sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the sending the predetermined narrowband location information to the UE includes:

and sending the preset narrowband position information to the UE through a master information block MIB message, a system information block SIB message, a random access response RAR or a radio resource control RRC dedicated signaling.

With reference to the first aspect or any one possible implementation manner of the first to seventh possible implementation manners of the first aspect, in an eighth possible implementation manner, the resource block allocation field in the DCI carries resource allocation information of the UE in a narrow band.

With reference to the first aspect or any one possible implementation manner of the first to eight possible implementation manners of the first aspect, in a ninth possible implementation manner, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

In a second aspect, a method for transmitting control information is provided, including:

receiving Downlink Control Information (DCI) sent by a base station through a control channel, wherein the DCI is generated by the base station according to a coverage enhancement characteristic parameter, when the coverage enhancement characteristic parameter is not greater than a predetermined threshold, the DCI comprises narrowband position indication information, or when the coverage enhancement characteristic parameter is greater than the predetermined threshold, the DCI does not comprise the narrowband position indication information, the narrowband position indication information comprises at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement characteristic parameter comprises a coverage enhancement level or a repetition number required by coverage enhancement;

and when the narrowband position indication information is included in the DCI, determining the position of the narrowband of the data channel of the User Equipment (UE) according to the narrowband position indication information, or when the narrowband position indication information is not included in the DCI, determining the position of the narrowband of the data channel of the UE according to preset narrowband position information.

With reference to the second aspect, in a first possible implementation manner, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a position of a narrowband of the data channel of the UE relative to the control channel.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, when the DCI includes the narrowband position indication information, the narrowband subframe indication information includes cross-subframe scheduling indication information.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation manner, when the narrowband position indication information is included in the DCI, the DCI adopts DCI format 1A or a format with the same length as DCI format 1A.

With reference to the second aspect or any one of the first to the third possible implementation manners of the second aspect, in a fourth possible implementation manner, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

With reference to the second aspect or any one of the first to the fourth possible implementation manners of the second aspect, in a fifth possible implementation manner, the method further includes:

and receiving the preset narrowband position information sent by the base station.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the receiving the predetermined narrowband position information sent by the base station includes:

and receiving the preset narrowband position information sent by the base station through high-layer signaling.

With reference to the fifth or sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the receiving the predetermined narrowband location information sent by the base station includes:

and receiving the preset narrowband position information sent by the base station through master information block MIB information, system information block SIB information, random access response RAR or radio resource control RRC dedicated signaling.

With reference to the second aspect or any one possible implementation manner of the first to the seventh possible implementation manners of the second aspect, in an eighth possible implementation manner, the resource block allocation field in the DCI carries resource allocation information within a narrow band of a data channel of the UE.

With reference to the second aspect or any possible implementation manner of the first to eight possible implementation manners of the second aspect, in a ninth possible implementation manner, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

In a third aspect, a base station is provided, including:

a generating module, configured to generate a DCI according to a coverage enhancement feature parameter, where when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, or when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

a sending module, configured to send the DCI to a user equipment UE through a control channel, so that the UE determines a narrowband position of a data channel of the UE according to the narrowband position indication information when the DCI includes the narrowband position indication information, or determines a narrowband position of a data channel of the UE according to predetermined narrowband position information when the DCI does not include the narrowband position indication information.

With reference to the third aspect, in a first possible implementation manner, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a position of a narrowband of the data channel of the UE with respect to the control channel.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, when the DCI includes the narrowband position indication information, the narrowband subframe indication information includes cross-subframe scheduling indication information.

With reference to the third aspect or the first or second possible implementation manner of the third aspect, in a third possible implementation manner, when the narrowband position indication information is included in the DCI, the DCI employs DCI format 1A or a format with the same length as DCI format 1A.

With reference to the third aspect or any possible implementation manner of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

With reference to the third aspect or any one of the first to the fourth possible implementation manners of the third aspect, in a fifth possible implementation manner, the sending module is further configured to send the predetermined narrowband location information to the UE.

With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner, the sending module is specifically configured to send the predetermined narrowband location information to the UE through a higher layer signaling.

With reference to the fifth or sixth possible implementation manner of the third aspect, in a seventh possible implementation manner, the sending module is specifically configured to send the predetermined narrowband location information to the UE through a master information block MIB message, a system information block SIB message, a random access response RAR, or a radio resource control RRC dedicated signaling.

With reference to the third aspect or any possible implementation manner of the first to seventh possible implementation manners of the third aspect, in an eighth possible implementation manner, the resource block allocation field in the DCI carries resource allocation information of the UE in a narrow band.

With reference to the third aspect or any possible implementation manner of the first to eight possible implementation manners of the third aspect, in a ninth possible implementation manner, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

In a fourth aspect, a UE is provided, including:

a receiving module, configured to receive, through a control channel, downlink control information DCI sent by a base station, where the DCI is generated by the base station according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

a determining module, configured to determine, when the DCI includes the narrowband position indication information, a narrowband position of a data channel of the UE according to the narrowband position indication information, or determine, when the DCI does not include the narrowband position indication information, a narrowband position of a data channel of the UE according to predetermined narrowband position information.

With reference to the fourth aspect, in a first possible implementation manner, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a position of a narrowband of the data channel of the UE with respect to the control channel.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, when the DCI includes the narrowband position indication information, the narrowband subframe indication information includes cross-subframe scheduling indication information.

With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner, when the narrowband position indication information is included in the DCI, the DCI adopts DCI format 1A or a format with the same length as DCI format 1A.

With reference to the fourth aspect or any one possible implementation manner of the first to third possible implementation manners of the fourth aspect, in a fourth possible implementation manner, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

With reference to the fourth aspect or any one of the first to the fourth possible implementation manners of the fourth aspect, in a fifth possible implementation manner, the receiving module is further configured to receive the predetermined narrowband position information sent by the base station.

With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner, the receiving module is specifically configured to receive the predetermined narrowband position information sent by the base station through a higher layer signaling.

With reference to the fifth or sixth possible implementation manner of the fourth aspect, in a seventh possible implementation manner, the receiving module is specifically configured to receive the predetermined narrowband location information that is sent by the base station through a master information block MIB message, a system information block SIB message, a random access response RAR, or a radio resource control RRC dedicated signaling.

With reference to the fourth aspect or any one possible implementation manner of the first to seventh possible implementation manners of the fourth aspect, in an eighth possible implementation manner, the resource block allocation field in the DCI carries resource allocation information within a narrow band of a data channel of the UE.

With reference to the fourth aspect or any possible implementation manner of the first to eight possible implementation manners of the fourth aspect, in a ninth possible implementation manner, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

In a fifth aspect, a method for transmitting control information is provided, including:

when the coverage enhancement characteristic parameter is not larger than a preset threshold value, generating first resource position indication information according to the position of a narrow-band subframe of a data channel of User Equipment (UE), wherein the coverage enhancement characteristic parameter comprises a coverage enhancement grade or the repetition times required by coverage enhancement;

and sending the first resource position indication information to the UE through a high-layer signaling so that the UE determines the position of the narrow band of the data channel of the UE according to the first resource position indication information.

With reference to the fifth aspect, in a first possible implementation manner, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is 1, and the first resource location indication information is frequency domain location information of the narrowband of the data channel of the UE.

With reference to the fifth aspect, in a second possible implementation manner, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1, and the first resource location indication information includes frequency domain location information of multiple narrowbands;

the method further comprises the following steps:

and sending Downlink Control Information (DCI) to the UE through the control channel, wherein the DCI comprises second resource location indication information, and the second resource location indication information indicates the narrow band of the data channel of the UE in the plurality of narrow bands.

With reference to the fifth aspect, in a third possible implementation manner, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is 0, and the first resource location indication information indicates scheduling in the same subframe.

With reference to the fifth aspect or any one of the first to third possible implementation manners of the fifth aspect, in a fourth possible implementation manner, the higher layer signaling is a random access response, RAR, or a radio resource control, RRC, dedicated signaling.

In a sixth aspect, a method for transmitting control information is provided, including:

receiving first resource position indication information sent by a base station through a high-level signaling, wherein the first resource position indication information is generated by the base station according to the narrowband subframe position of a data channel of User Equipment (UE) when a coverage enhancement characteristic parameter is not greater than a preset threshold value, and the coverage enhancement characteristic parameter comprises a coverage enhancement grade or the number of repetition times required by coverage enhancement;

and determining the position of the narrow band of the data channel of the UE according to the first resource position indication information.

With reference to the sixth aspect, in a first possible implementation manner, the determining, according to the first resource location indication information, a location of a narrow band of a data channel of the UE includes:

when the first resource position indication information comprises frequency domain position information of a narrow band, determining that the interval between a sub-frame of the narrow band of the data channel of the UE and a sub-frame of a control channel for scheduling the UE is 1, and determining the frequency domain position of the narrow band of the data channel of the UE according to the frequency domain position information of the narrow band.

With reference to the sixth aspect, in a second possible implementation manner, the determining, according to the first resource location indication information, a location of a narrow band of a data channel of the UE includes:

when the first resource position indication information comprises frequency domain position information of a plurality of narrow bands, determining that the interval between a sub-frame of the narrow band of the data channel of the UE and a sub-frame of a control channel for scheduling the UE is a preset value larger than 1;

receiving Downlink Control Information (DCI) sent by the base station through the control channel, wherein the DCI comprises second resource location indication information, and the second resource location indication information indicates a narrow band of a data channel of the UE in the plurality of narrow bands;

and determining the frequency domain position of the narrow band of the data channel of the UE according to the frequency domain position information of the plurality of narrow bands and the second resource position indication information.

With reference to the sixth aspect, in a third possible implementation manner, the determining, according to the first resource location indication information, a location of a narrow band of a data channel of the UE includes:

when the first resource location indication information indicates co-subframe scheduling, it is determined that an interval between a subframe of a narrow band of a data channel of the UE and a subframe of a control channel scheduling the UE is 0 and the narrow band of the data channel of the UE is the same as the narrow band of the control channel.

With reference to the sixth aspect or any one of the first to third possible implementation manners of the sixth aspect, in a fourth possible implementation manner, the higher layer signaling is a master information block MIB message, a system information block SIB message, a random access response RAR, or a radio resource control RRC dedicated signaling.

In a seventh aspect, a method for transmitting control information is provided, including:

receiving capability information of User Equipment (UE) sent by the UE;

selecting Downlink Control Information (DCI) with a predetermined format according to the capability information of the UE, wherein the DCI with the predetermined format comprises the same subframe scheduling DCI with the predetermined format or cross-subframe scheduling DCI with the predetermined format;

and transmitting the DCI of the predetermined format to the UE.

With reference to the seventh aspect, in a first possible implementation manner, the selecting, according to the capability information of the UE, downlink control information DCI of a predetermined format includes:

if the UE can tolerate the time delay, selecting the DCI of the cross-subframe scheduling of the preset format; alternatively, the first and second electrodes may be,

and if the UE cannot tolerate the time delay, selecting the DCI scheduled by the same subframe with the preset format.

In an eighth aspect, a method for transmitting control information is provided, including:

sending User Equipment (UE) capability information to a base station;

and detecting Downlink Control Information (DCI) of a predetermined format according to the capability information of the UE, wherein the DCI of the predetermined format comprises the same subframe scheduling DCI of the predetermined format or cross subframe scheduling DCI of the predetermined format, and the base station selects the DCI of the predetermined format according to the capability information of the UE.

With reference to the eighth aspect, in a first possible implementation manner, the detecting, according to the capability information of the UE, downlink control information DCI of a predetermined format includes:

if the UE can tolerate the time delay, detecting the DCI of the cross-subframe scheduling of the preset format; alternatively, the first and second electrodes may be,

and if the UE cannot tolerate the time delay, detecting the DCI scheduled by the same subframe with the preset format.

In a ninth aspect, there is provided a base station comprising:

a generating module, configured to generate first resource location indication information according to a narrowband subframe location of a data channel of a user equipment UE when a coverage enhancement feature parameter is not greater than a predetermined threshold, where the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

a sending module, configured to send the first resource location indication information to the UE through a high-level signaling, so that the UE determines a narrowband location of a data channel of the UE according to the first resource location indication information.

With reference to the ninth aspect, in a first possible implementation manner, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is 1, and the first resource location indication information is frequency domain location information of the narrowband of the data channel of the UE.

With reference to the ninth aspect, in a second possible implementation manner, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1, and the first resource location indication information includes frequency domain location information of multiple narrowbands;

the sending module is further configured to:

With reference to the ninth aspect, in a third possible implementation manner, an interval between a narrowband subframe of the data channel of the UE and a subframe of a control channel scheduling the UE is 0, and the first resource location indication information indicates scheduling in the same subframe.

With reference to the ninth aspect or any one of the first to third possible implementation manners of the ninth aspect, in a fourth possible implementation manner, the higher layer signaling is a random access response, RAR, or a radio resource control, RRC, dedicated signaling.

In a tenth aspect, a user equipment UE is provided, including:

a receiving module, configured to receive first resource location indication information sent by a base station through a high-level signaling, where the first resource location indication information is generated by the base station according to a narrowband subframe location of a data channel of a user equipment UE when a coverage enhancement feature parameter is not greater than a predetermined threshold, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

a determining module, configured to determine a narrowband position of a data channel of the UE according to the first resource position indication information.

With reference to the tenth aspect, in a first possible implementation manner, the determining module is specifically configured to determine, when the first resource location indication information includes narrowband frequency domain location information, that an interval between a narrowband subframe of a data channel of the UE and a subframe of a control channel scheduling the UE is 1, and determine, according to the narrowband frequency domain location information, a narrowband frequency domain location of the data channel of the UE.

With reference to the tenth aspect, in a second possible implementation manner, the determining module is specifically configured to determine, when the first resource location indication information includes frequency domain location information of multiple narrow bands, that an interval between a subframe of a narrow band of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1;

the receiving module is further configured to receive DCI sent by the base station through the control channel, where the DCI includes second resource location indication information, and the second resource location indication information indicates a narrowband of a data channel of the UE in the multiple narrowbands;

the determining module is specifically configured to determine a frequency domain location of a narrowband of a data channel of the UE according to the frequency domain location information of the multiple narrowband and the second resource location indication information.

With reference to the tenth aspect, in a third possible implementation manner, the determining module is specifically configured to determine that, when the first resource location indication information indicates co-subframe scheduling, an interval between a subframe of a narrowband of the data channel of the UE and a subframe of a control channel of the UE is 0, and the narrowband of the data channel of the UE is the same as the narrowband of the control channel.

With reference to the tenth aspect or any one of the first to third possible implementation manners of the tenth aspect, in a fourth possible implementation manner, the higher layer signaling is a random access response, RAR, or a radio resource control, RRC, dedicated signaling.

In an eleventh aspect, there is provided a base station comprising:

a receiving module, configured to receive capability information of a user equipment UE sent by the UE;

a selection module, configured to select DCI of a predetermined format according to the capability information of the UE, where the DCI of the predetermined format includes DCI scheduled in the same subframe of the predetermined format or DCI scheduled across subframes of the predetermined format;

a sending module, configured to send the DCI with the predetermined format to the UE.

With reference to the eleventh aspect, in a first possible implementation manner, the selecting module is specifically configured to:

In a twelfth aspect, a user equipment UE is provided, including:

a sending module, configured to send the UE capability information to a base station;

a detecting module, configured to detect DCI of a predetermined format according to the capability information of the UE, where the DCI of the predetermined format includes DCI scheduled in the same subframe of the predetermined format or DCI scheduled across subframes of the predetermined format, and the DCI of the predetermined format is selected by the base station according to the capability information of the UE.

With reference to the twelfth aspect, in a first possible implementation manner, the detection module is specifically configured to:

Based on the above technical solution, in the embodiments of the present invention, DCI is generated according to a coverage enhancement feature parameter, when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, which does not bring large signaling overhead, and can improve scheduling flexibility.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.

Fig. 2 is a schematic flow chart of a method of transmitting control information according to an embodiment of the present invention.

Fig. 3 is a diagram illustrating a method for transmitting control information according to another embodiment of the present invention.

Fig. 4 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 5 is a diagram illustrating a method for transmitting control information according to another embodiment of the present invention.

Fig. 6 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 7 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 8 is a schematic block diagram of a base station of one embodiment of the present invention.

Fig. 9 is a schematic block diagram of a UE according to an embodiment of the present invention.

Fig. 10 is a schematic configuration diagram of a base station of another embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a UE according to another embodiment of the present invention.

Fig. 12 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 13 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 14 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 15 is a schematic flow chart of a method of transmitting control information according to still another embodiment of the present invention.

Fig. 16 is a schematic block diagram of a base station of a further embodiment of the present invention.

Fig. 17 is a schematic block diagram of a UE according to still another embodiment of the present invention.

Fig. 18 is a schematic block diagram of a base station of a further embodiment of the present invention.

Fig. 19 is a schematic block diagram of a UE according to still another embodiment of the present invention.

Fig. 20 is a schematic configuration diagram of a base station of still another embodiment of the present invention.

Fig. 21 is a schematic structural diagram of a UE according to still another embodiment of the present invention.

Fig. 22 is a schematic configuration diagram of a base station of still another embodiment of the present invention.

Fig. 23 is a schematic structural diagram of a UE according to still another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the embodiment of the invention can be applied to MTC scenes in various communication systems. The various communication systems may be Global System for Mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD Duplex), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, and the like.

The UE in the embodiment of the invention can be an MTC terminal and can also be common UE for carrying out MTC service. User Equipment (UE), which may be referred to as a Terminal (Terminal), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), etc., may communicate with one or more core networks via a Radio Access Network (RAN), for example, the User Equipment may be a Mobile phone (or referred to as a "cellular phone"), a computer with a Mobile Terminal, etc., for example, the User Equipment may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted Mobile device that exchanges voice and/or data with the RAN.

In the embodiment of the present invention, the Base station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base station (NodeB, NB) in WCDMA, or an evolved Node B (ENB or e-NodeB) in LTE, which is not limited in the present invention. For convenience of description, the following embodiments will be described by taking a base station ENB and a user equipment UE as examples.

The information that the UE needs to know the narrowband resource of the first data channel associated with the control channel when transmitting data includes:

1) narrowband subframe indication information, information indicating a narrowband time domain position.

And the MTC terminal controls the channel to repeatedly send the indication information of the subframe where the first narrow-band data channel is located after the end.

Optionally, the narrowband subframe indication information includes cross-subframe scheduling indication information, where the cross-subframe scheduling indication information indicates whether to perform cross-subframe scheduling, and the narrowband subframe indication information may further include information of a subframe interval in the case of the cross-subframe scheduling.

2) And the narrowband resource block set indication information indicates information of narrowband frequency domain positions.

The terminal must know the frequency domain location of transmission/reception of data, for example, the location of the narrowband of the PDSCH of the terminal in the system bandwidth, when transmitting or receiving data.

3) Information of resource allocation within a narrow band.

In order to obtain frequency diversity gain during repeated transmission of the data channel, the data channel may employ a frequency hopping technique, for example, one narrowband position is used in 10 consecutive subframes, and another narrowband position is used in the next 10 consecutive subframes. The number of consecutive subframes is a characteristic parameter indicating the type of frequency hopping. The number of consecutive subframes may be indicated by DCI in a control channel of the scheduling narrowband, or may be associated with a coverage enhancement level characteristic of the data channel in some predetermined manner.

In the embodiment of the present invention, the position of the narrowband includes a time domain position and/or a frequency domain position of the narrowband, the time domain position represents a subframe where the narrowband is located, and the frequency domain position represents a position occupied by a resource block set of the narrowband in a system bandwidth. Correspondingly, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, wherein the narrowband resource block set indication information indicates a narrowband frequency domain position, and the narrowband subframe indication information indicates a narrowband time domain position.

It should be understood that the narrowband in the embodiment of the present invention may also be transformed into a resource block, that is, the technical solution in the embodiment of the present invention may also be applied to a scenario where the resource of the UE is not a narrowband but a resource block.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention. The UE needs to know the location of the scheduled data when transmitting or receiving the data. For example, UE1 needs to know the position of the PDSCH narrowband within the system bandwidth when receiving PDSCH. The current location of the narrowband may be indicated by DCI in EPDCCH.

Fig. 2 shows a schematic flow diagram of a method 200 of transmitting control information according to an embodiment of the invention. The method 200 is performed by a base station, as shown in fig. 2, the method 200 includes:

s210, generating DCI according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

s220, sending the DCI to the UE through the control channel, so that the UE determines the narrowband position of the data channel of the UE according to the narrowband position indication information when the DCI includes the narrowband position indication information, or determines the narrowband position of the data channel of the UE according to predetermined narrowband position information when the DCI does not include the narrowband position indication information.

In the embodiment of the invention, the base station generates DCI based on the coverage enhancement characteristic parameters and associates the narrowband position indication with the coverage enhancement requirement. When the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information. Therefore, under the condition of low coverage enhancement requirement, the DCI is adopted to indicate the narrowband position, and because the signaling sent under the condition is less, the large signaling overhead can not be brought, and the scheduling flexibility can be ensured; under the condition that the coverage enhancement requirement is high, the DCI is not adopted to indicate the narrowband position, but the preset narrowband position information is adopted, so that the resources can be saved, and further, the frequency diversity gain can be obtained in a frequency hopping mode. Therefore, the technical scheme of the embodiment of the invention has higher flexibility.

Therefore, in the method for transmitting control information according to the embodiment of the present invention, DCI is generated according to a coverage enhancement feature parameter, when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, which does not bring large signaling overhead and can improve scheduling flexibility.

Alternatively, in the case where the data channel of the UE is repeatedly transmitted, the narrowband position indication information may be indication information of the position of the narrowband of the first data channel associated with the control channel. It should be understood that the indication information of the narrowband of the associated other data channel may also be used, which is not limited by the embodiment of the present invention.

After the location of the narrowband of one data channel is determined, the location of the narrowband of the other data channel can be determined based on the location of the narrowband of the data channel. For example, when the frequency hopping technique is used, after the location of the narrowband of one data channel is determined, the locations of the narrowbands of other data channels can be obtained according to the location of the narrowband of the data channel and the frequency hopping type and/or the coverage enhancement characteristic of the data channel. Taking the first data channel as an example, when the frequency hopping technology is adopted and the coverage enhancement characteristic parameter of the data channel is greater than the predetermined threshold, the positions of the narrow bands of other data channels can be obtained according to the position and the frequency hopping type of the narrow band of the first data channel and the predetermined frequency hopping continuous subframe parameter.

The coverage enhancement feature of the control channel may be the same as or different from the coverage enhancement feature of the data channel.

Optionally, in an embodiment of the present invention, the control channel is EPDCCH.

It should be understood that the control channel may also be other control channels that may be used to schedule the UE, and the embodiment of the present invention is not limited thereto.

Optionally, in an embodiment of the present invention, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE.

For example, the system may pre-define or configure one or more narrow bands by a higher layer, each narrow band having a unique index, and the DCI indicates the index of the narrow band.

In this case, the UE may determine the location of the narrowband according to the index of the narrowband.

Optionally, in another embodiment of the present invention, the narrowband position indication information indicates an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

In this case, the UE may determine the location of the narrowband according to the offset value and the location of the control channel.

It should be understood that, when the narrowband position indication information includes only narrowband resource block set indication information, the offset value in the embodiment of the present invention is an offset value in a frequency domain, when the narrowband position indication information includes only narrowband subframe indication information, the offset value is an offset value in a time domain, and when the narrowband position indication information includes narrowband resource block set indication information and narrowband subframe indication information, the offset value is an offset value in the frequency domain and an offset value in the time domain.

It should also be understood that in various embodiments of the present invention, when the narrowband position indication information includes only narrowband resource block set indication information, the narrowband time domain position may be determined by a predefined manner, i.e., the narrowband time domain position may be fixed, e.g., offset by 1 or 2 subframes relative to the control channel; when the narrowband position indication information only includes narrowband subframe indication information, the narrowband frequency domain position may be determined by a predefined manner, i.e. the narrowband frequency domain position may be fixed; in addition, the narrowband subframe indication information may include cross-subframe scheduling indication information, where the cross-subframe scheduling indication information indicates whether to schedule across subframes, for example, a 1-bit indication is used, such as 0 indicates same-subframe scheduling, and 1 indicates cross-subframe scheduling (a subframe interval may be fixed in cross-subframe scheduling, and may also be further indicated by the narrowband subframe indication information).

Optionally, in another embodiment of the present invention, when the narrowband position indication information is included in the DCI, the DCI adopts DCI format 1A or a format with the same length as DCI format 1A.

Fig. 3 is an example of a case where the DCI includes narrowband position indication information. In fig. 3, an index of a Narrowband (NB) is indicated with DCI format 1A. Since Coverage Enhancement (CE) in the scene shown in fig. 3 is not high, the number of times of EPDCCH repetition is small, and thus, large signaling overhead is not brought by indicating a narrowband position by using DCI. In this case, the UE determines the location of the PDSCH according to the index of the narrowband indicated by the DCI.

Optionally, in another embodiment of the present invention, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

In this case, the UE determines the location of the narrowband according to the predefined offset value and the location of the control channel.

The predetermined narrowband location information may be defined in advance at the base station and UE sides. It should be understood that the predefined manner of the predetermined narrowband position information is not limited by the embodiment of the present invention. For example, the predefined manner may be a function definition, or a table correspondence, or an explicit value in the protocol specification.

Optionally, as shown in fig. 4, in another embodiment of the present invention, the method 200 may further include:

s230, transmitting the predetermined narrowband location information to the UE.

That is, in the present embodiment, predetermined narrowband location information is transmitted by the base station to the UE. And when the DCI does not comprise the narrowband position indication information, the UE determines the narrowband position of the data channel of the UE according to the preset narrowband position information.

It should be understood that the predetermined narrowband location information transmitted by the base station to the UE may include a frequency domain offset value and/or a time domain offset value of a narrowband of a data channel of the UE with respect to a location of a control channel, and when only one of the offset values is included, the other offset value may be determined in a predefined manner.

Optionally, in another embodiment of the present invention, the base station sends the predetermined narrowband location information to the UE through higher layer signaling.

The higher layer signaling may be a Master Information Block (MIB) message, a System Information Block (SIB) message, a Random Access Response (RAR) or Radio Resource Control (RRC) dedicated signaling.

Optionally, in another embodiment of the present invention, the resource block allocation field in the DCI carries resource allocation information of the UE in a narrow band.

Optionally, in another embodiment of the present invention, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

That is, when the narrowband position indication information is not included in the DCI, a different DCI format may be employed than when the narrowband position indication information is included in the DCI. For example, DCI format 1A is used when the narrowband position indication information is included in the DCI, and DCI format 1C or a format having the same length as DCI format 1C is used when the narrowband position indication information is not included in the DCI.

Fig. 5 is an example of a case where the narrowband position indication information is not included in the DCI. In fig. 5, DCI format 1C is employed. Since the coverage enhancement is high in the scenario shown in fig. 5 and the EPDCCH repetition time is high, the predetermined narrowband position information, i.e. the offset value relative to the EPDCCH position, is used to save resources. In this case, the UE determines the location of the PDSCH according to the offset value and the location of the EPDCCH.

The method for transmitting control information according to the embodiment of the present invention is described in detail above from the perspective of the base station, and the method for transmitting control information according to the embodiment of the present invention is described below from the perspective of the UE.

Fig. 6 shows a schematic flow diagram of a method 600 of transmitting control information according to an embodiment of the invention. The method 600 is performed by a UE, as shown in fig. 6, the method 600 includes:

s610, receiving DCI sent by a base station through a control channel, where the DCI is generated by the base station according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

s620, determining the narrowband position of the data channel of the UE according to the narrowband position indication information when the DCI includes the narrowband position indication information, or determining the narrowband position of the data channel of the UE according to predetermined narrowband position information when the DCI does not include the narrowband position indication information.

In the embodiment of the invention, the base station generates DCI based on the coverage enhancement characteristic parameters and associates the narrowband position indication with the coverage enhancement requirement. When the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information. And when the DCI does not comprise the narrowband position indication information, the UE determines the narrowband position of the data channel of the UE according to the preset narrowband position information. In this way, under the condition that the coverage enhancement requirement is low, the DCI is adopted to indicate the narrowband position, and because the signaling sent under the condition is less, large signaling overhead can not be brought; under the condition that the coverage enhancement requirement is high, the DCI is not adopted to indicate the narrowband position, and the preset narrowband position information is adopted, so that the resources can be saved. Therefore, the technical scheme of the embodiment of the invention has higher flexibility.

Therefore, in the method for transmitting control information according to the embodiment of the present invention, the location of the narrowband is determined according to the narrowband location indication information when the DCI includes the narrowband location indication information, and the location of the narrowband is determined according to the predetermined narrowband location information when the DCI does not include the narrowband location indication information, so that flexibility of scheduling can be improved.

Optionally, in an embodiment of the present invention, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a narrowband of the data channel of the UE with respect to a position of the control channel.

Optionally, as shown in fig. 7, in another embodiment of the present invention, the method 600 further includes:

s630, receiving the preset narrow-band position information sent by the base station.

Optionally, in another embodiment of the present invention, the UE receives the predetermined narrowband location information sent by the base station through higher layer signaling.

Optionally, in another embodiment of the present invention, the UE receives the predetermined narrowband location information sent by the base station through an MIB message, a SIB message, RAR, or RRC dedicated signaling.

Optionally, in another embodiment of the present invention, the resource block allocation field in the DCI carries resource allocation information within a narrow band of a data channel of the UE.

It should be understood that, in the embodiment of the present invention, the interaction between the base station and the UE described at the base station side and the related characteristics, functions, and the like correspond to the description at the UE side, and for brevity, no further description is provided here.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Having described the method of transmitting control information in detail above according to an embodiment of the present invention, a base station and a UE according to an embodiment of the present invention will be described below.

Fig. 8 shows a schematic block diagram of a base station 800 according to an embodiment of the invention. As shown in fig. 8, the base station 800 includes:

a generating module 810, configured to generate DCI according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, where the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

a sending module 820, configured to send the DCI to the UE through a control channel, so that the UE determines a narrowband position of a data channel of the UE according to the narrowband position indication information when the narrowband position indication information is included in the DCI, or determines a narrowband position of a data channel of the UE according to predetermined narrowband position information when the narrowband position indication information is not included in the DCI.

In the embodiment of the invention, the base station generates DCI based on the coverage enhancement characteristic parameters and associates the narrowband position indication with the coverage enhancement requirement. When the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information. In this way, under the condition that the coverage enhancement requirement is low, the DCI is adopted to indicate the narrowband position, and because the signaling sent under the condition is less, large signaling overhead can not be brought; under the condition that the coverage enhancement requirement is high, the DCI is not adopted to indicate the narrowband position, and the preset narrowband position information is adopted, so that the resources can be saved. Therefore, the technical scheme of the embodiment of the invention has higher flexibility.

Therefore, the base station in the embodiment of the present invention generates DCI according to the coverage enhancement feature parameter, where the coverage enhancement feature parameter is not greater than the predetermined threshold, the DCI includes the narrowband position indication information, and where the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, which does not bring about a large signaling overhead and can improve scheduling flexibility.

Optionally, in another embodiment of the present invention, the sending module 820 is further configured to send the predetermined narrowband location information to the UE.

Optionally, in another embodiment of the present invention, the sending module 820 is specifically configured to send the predetermined narrowband location information to the UE through a higher layer signaling.

Optionally, in another embodiment of the present invention, the sending module 820 is specifically configured to send the predetermined narrowband location information to the UE through an MIB message, a SIB message, a RAR, or an RRC dedicated signaling.

Optionally, in another embodiment of the present invention, the control channel is EPDCCH.

The base station 800 according to the embodiment of the present invention may correspond to a base station in the method for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the base station 800 are respectively for implementing corresponding processes of each aforementioned method, and are not described herein again for brevity.

Fig. 9 shows a schematic block diagram of a UE 900 according to an embodiment of the invention. As shown in fig. 9, the UE 900 includes:

a receiving module 910, configured to receive DCI sent by a base station through a control channel, where the DCI is generated by the base station according to a coverage enhancement feature parameter, where when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, or when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

a determining module 920, configured to determine a location of a narrowband of a data channel of the UE according to the narrowband location indication information when the narrowband location indication information is included in the DCI, or determine a location of a narrowband of a data channel of the UE according to predetermined narrowband location information when the narrowband location indication information is not included in the DCI.

Therefore, the UE of the embodiment of the present invention determines the location of the narrowband according to the narrowband location indication information when the DCI includes the narrowband location indication information, and determines the location of the narrowband according to the predetermined narrowband location information when the DCI does not include the narrowband location indication information, thereby improving scheduling flexibility.

Optionally, in another embodiment of the present invention, the receiving module 910 is further configured to receive the predetermined narrowband position information sent by the base station.

Optionally, in another embodiment of the present invention, the receiving module 910 is specifically configured to receive the predetermined narrowband position information sent by the base station through a higher layer signaling.

Optionally, in another embodiment of the present invention, the receiving module 910 is specifically configured to receive the predetermined narrowband location information sent by the base station through an MIB message, a SIB message, RAR, or RRC dedicated signaling.

The UE 900 according to the embodiment of the present invention may correspond to the UE in the method for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the UE 900 are respectively for implementing corresponding processes of the foregoing methods, and are not described herein again for brevity.

Fig. 10 shows a structure of a base station provided by another embodiment of the present invention, which includes at least one processor 1002 (e.g., CPU), at least one network interface 1005 or other communication interface, a memory 1006, and at least one communication bus 1003 for implementing connection communication between these devices. The processor 1002 is configured to execute executable modules, such as computer programs, stored in the memory 1006. The memory 1006 may comprise a high-speed Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is realized through at least one network interface 1005 (which may be wired or wireless).

In some embodiments, the memory 1006 stores the program 10061, and the processor 1002 executes the program 10061 for:

generating DCI according to a coverage enhancement feature parameter, wherein when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, or when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required by coverage enhancement;

and sending the DCI to the UE through a control channel, so that the UE determines the position of the narrow band of the data channel of the UE according to the narrow band position indication information when the narrow band position indication information is included in the DCI, or determines the position of the narrow band of the data channel of the UE according to predetermined narrow band position information when the narrow band position indication information is not included in the DCI.

Optionally, when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or the narrowband position indication information indicates an offset value of a narrowband of the data channel of the UE with respect to a position of the control channel.

Optionally, when the DCI includes the narrowband position indication information, the DCI adopts DCI format 1A or a format with a length equal to that of DCI format 1A.

Optionally, when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE with respect to a position of the control channel.

Optionally, the processor 1002 is further configured to send the predetermined narrowband location information to the UE.

Optionally, the processor 1002 is specifically configured to send the predetermined narrowband location information to the UE through a higher layer signaling.

Optionally, the processor 1002 is specifically configured to send the predetermined narrowband location information to the UE through an MIB message, a SIB message, a RAR, or an RRC dedicated signaling.

Optionally, the resource block allocation field in the DCI carries resource allocation information of the UE in the narrowband.

Optionally, when the narrowband position indication information is not included in the DCI, the DCI adopts DCI format 1C or a format with the same length as DCI format 1C.

Optionally, the control channel is EPDCCH.

It can be seen from the above technical solutions provided in the embodiments of the present invention that, DCI is generated according to a coverage enhancement feature parameter, when the coverage enhancement feature parameter is not greater than a predetermined threshold, the DCI includes narrowband position indication information, and when the coverage enhancement feature parameter is greater than the predetermined threshold, the DCI does not include the narrowband position indication information, which does not bring large signaling overhead, and can improve scheduling flexibility.

Fig. 11 shows a structure of a UE provided by another embodiment of the present invention, which includes at least one processor 1102 (e.g., CPU), at least one network interface 1105 or other communication interfaces, a memory 1106, and at least one communication bus 1103 for implementing connection communication between these devices. The processor 1102 is operable to execute executable modules, such as computer programs, stored in the memory 1106. The memory 1106 may comprise a high-speed Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is made through at least one network interface 1105 (which may be wired or wireless).

In some embodiments, memory 1106 stores routines 11061, and processor 1102 executes routines 11061 to perform the following operations:

receiving DCI sent by a base station through a control channel, wherein the DCI is generated by the base station according to a coverage enhancement characteristic parameter, when the coverage enhancement characteristic parameter is not greater than a predetermined threshold, the DCI comprises narrowband position indication information, or when the coverage enhancement characteristic parameter is greater than the predetermined threshold, the DCI does not comprise the narrowband position indication information, the narrowband position indication information comprises at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement characteristic parameter comprises a coverage enhancement grade or a repetition number required by coverage enhancement;

and determining the position of the narrow band of the data channel of the UE according to the narrow band position indication information when the narrow band position indication information is included in the DCI, or determining the position of the narrow band of the data channel of the UE according to predetermined narrow band position information when the narrow band position indication information is not included in the DCI.

Optionally, the processor 1102 is further configured to receive the predetermined narrowband position information sent by the base station.

Optionally, the processor 1102 is specifically configured to receive the predetermined narrowband location information sent by the base station through a higher layer signaling.

Optionally, the processor 1102 is specifically configured to receive the predetermined narrowband location information sent by the base station through an MIB message, a SIB message, a RAR, or an RRC dedicated signaling.

Optionally, the resource block allocation field in the DCI carries resource allocation information in a narrowband of a data channel of the UE.

Optionally, the control channel is EPDCCH.

As can be seen from the above technical solutions provided in the embodiments of the present invention, the embodiments of the present invention can improve the scheduling flexibility by determining the narrowband position according to the narrowband position indication information when the DCI includes the narrowband position indication information, and determining the narrowband position according to the predetermined narrowband position information when the DCI does not include the narrowband position indication information.

Fig. 12 shows a schematic flow diagram of a method 1200 of transmitting control information according to yet another embodiment of the invention. The method 1200 is performed by a base station, as shown in fig. 12, the method 1200 includes:

s1210, when the coverage enhancement characteristic parameter is not greater than a predetermined threshold, generating first resource location indication information according to a subframe location of a narrow band of a data channel of the UE, wherein the coverage enhancement characteristic parameter includes a coverage enhancement level or a repetition number required by coverage enhancement;

s1220, sending the first resource location indication information to the UE through a high-level signaling, so that the UE determines a narrowband location of a data channel of the UE according to the first resource location indication information.

In this embodiment of the present invention, when the coverage enhancement parameter is not greater than the predetermined threshold, for example, when the coverage enhancement level is normal (normal) or no repetition is required, the base station generates the first resource location indication information according to the sub-frame location of the narrow band of the data channel of the UE, that is, after the base station determines the narrow band location of the data channel of the UE, the base station generates the corresponding first resource location indication information according to the sub-frame location of the narrow band of the data channel of the UE, for example, the sub-frame interval of the control channel, and sends the first resource location indication information to the UE through a high layer signaling, and the UE determines the narrow band location of the data channel of the UE according to the first resource location indication information. Therefore, different resource position indication information can be adopted for different subframe intervals, and the scheduling flexibility can be improved.

Therefore, the method for transmitting control information according to the embodiment of the present invention transmits the first resource location indication information generated according to the narrowband subframe location of the data channel of the UE to the UE through the high-level signaling, so that the scheduling flexibility can be improved.

Optionally, in an embodiment of the present invention, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is 1, and the first resource location indication information is frequency domain location information of the narrowband of the data channel of the UE.

Specifically, when the subframe interval is 1, the base station transmits, through higher layer signaling, first resource location indication information including frequency domain location information of one narrowband, that is, frequency domain location information of a narrowband of a data channel of the UE. The frequency domain position information may specifically be an index or an offset value, or the same indication information as the narrowband frequency domain position of the control channel. The UE determines that the interval between a subframe of a narrow band of a data channel of the UE and a subframe of a control channel for scheduling the UE is 1 according to first resource position indication information comprising frequency domain position information of the narrow band, and determines the frequency domain position of the narrow band of the data channel of the UE according to the frequency domain position information of the narrow band, namely the frequency domain position information of the narrow band of the data channel of the UE.

Optionally, in another embodiment of the present invention, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1, and the first resource location indication information includes frequency domain location information of a plurality of narrowbands;

the method further comprises the following steps:

Specifically, when the subframe interval is a predetermined value greater than 1, for example, 2, the base station transmits, through high layer signaling, first resource location indication information including frequency domain location information of a plurality of narrow bands, and then transmits, through DCI, second resource location indication information indicating, among the plurality of narrow bands, a narrow band of a data channel of the UE. The frequency domain position information may specifically be an index or an offset value, or the same indication information as the narrowband frequency domain position of the control channel. The UE determines that the interval between a subframe of a narrow band of a data channel of the UE and a subframe of a control channel scheduling the UE is a preset value larger than 1, such as 2, according to first resource position indication information comprising frequency domain position information of a plurality of narrow bands; and determining the frequency domain position of the narrow band of the data channel of the UE according to the frequency domain position information of the narrow bands and the second resource position indication information.

The base station sends frequency domain position information of a plurality of narrow bands to the UE through a high-level signaling, on one hand, the preset value that the inter-subframe interval is greater than 1 can be indicated, and on the other hand, the narrow bands of the UE can be indicated in the plurality of narrow bands only through DCI. For example, in frequency hopping, only one narrowband needs to be indicated in the plurality of narrowband at a time. The number of bits required for indicating one narrow band among the plurality of narrow bands is small, so that resources occupied by the DCI can be saved.

Optionally, in another embodiment of the present invention, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling of the UE is 0, and the first resource location indication information indicates scheduling of the same subframe.

Specifically, when scheduling the same subframe (i.e., the subframe interval is 0), the base station only needs to transmit the same subframe scheduling indication information through a higher layer signaling. And the UE determines that the scheduling is the same-subframe scheduling according to the same-subframe scheduling indication information, namely the interval between the subframe of the narrow band of the data channel of the UE and the subframe of the control channel for scheduling the UE is 0, and the narrow band of the data channel of the UE is the same as the narrow band of the control channel.

In various embodiments of the present invention, the higher layer signaling may be Random Access Response (RAR) or RRC dedicated signaling.

The RAR may be a RAR message carried by a data channel, a control channel scheduling the RAR message, or a combination thereof. The RAR message is sent to a group of UE, and only a specific group of UE can determine the narrow-band resource according to the read RAR message, so that the scheduling flexibility can be increased.

RRC-specific signaling, such as UE-specific RRC signaling, can be read only by a specific UE, thereby enabling higher scheduling flexibility.

The method for transmitting the control information has high scheduling flexibility and can ensure the maximum speed and the time delay of the UE.

Fig. 13 shows a schematic flow diagram of a method 1300 of transmitting control information according to yet another embodiment of the invention. The method 1300 is performed by a UE, as shown in fig. 13, the method 1300 includes:

s1310, receiving first resource location indication information sent by a base station through a high-level signaling, where the first resource location indication information is generated by the base station according to a narrowband subframe location of a data channel of a UE when a coverage enhancement feature parameter is not greater than a predetermined threshold, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

s1320, determining a narrowband position of a data channel of the UE according to the first resource position indication information.

The method for transmitting the control information of the embodiment of the invention can improve the scheduling flexibility by receiving the first resource position indication information which is sent by the base station through the high-level signaling and is generated according to the narrow-band subframe position of the data channel of the UE.

Optionally, in an embodiment of the present invention, determining a location of a narrow band of a data channel of the UE according to the first resource location indication information includes:

Optionally, in another embodiment of the present invention, determining the location of the narrow band of the data channel of the UE according to the first resource location indication information includes:

In various embodiments of the present invention, the higher layer signaling is a random access response, RAR, or radio resource control, RRC, dedicated signaling.

Fig. 14 shows a schematic flow diagram of a method 1400 of transmitting control information according to yet another embodiment of the invention. The method 1400 is performed by a base station, as shown in fig. 14, the method 1400 includes:

s1410, receiving the capability information of the UE sent by the UE;

s1420, according to the capability information of the UE, selecting DCI of a predetermined format, where the DCI of the predetermined format includes DCI scheduled by the same subframe of the predetermined format or DCI scheduled by a cross-subframe of the predetermined format;

s1430, the DCI of the predetermined format is transmitted to the UE.

In the embodiment of the invention, a base station selects DCI with a preset format to send according to the capability information of UE; accordingly, the UE may blindly detect DCI of a predetermined format according to capability information of the UE. In this way, the same subframe scheduled DCI of the predetermined format or the cross-subframe scheduled DCI of the predetermined format can be flexibly selected, thereby improving the scheduling flexibility.

Therefore, the method for transmitting control information according to the embodiment of the present invention selects DCI with different predetermined formats to transmit according to the capability information of the UE, can simultaneously support same-subframe scheduling and cross-subframe scheduling, and can improve scheduling flexibility.

The capability information of the UE includes information related to the service or capability of the UE, and specifically may include:

UE capabilities, such as UE category (category);

the service characteristic related information, such as a parameter reported by the UE in the random access process, may indicate whether the service of the UE is a delay Tolerant service (delay Tolerant), and the like.

For example, the UE may report the capability information of the UE through the following messages

RRCConnectionRequest message

EstablishmentCause::＝ENUMERATED{emergency,highPriorityAccess,mt-Access,mo-Signalling,mo-Data,delayTolerantAccess-v1020,spare2,spare1}

The base station selects Downlink Control Information (DCI) of a predetermined format according to the capability information of the UE, and specifically selects the DCI of cross-subframe scheduling of the predetermined format if the UE can tolerate time delay; or, if the UE cannot tolerate the delay, selecting the DCI scheduled by the same subframe with the predetermined format.

For example, if the UE sends the message, it may be determined that the UE can tolerate the delay according to the information delaytilerantaccess-v 1020 therein, that is, the UE is not sensitive to the delay, so that the DCI scheduled across the sub-frame with the predetermined format may be selected, and accordingly, the UE assumes that the DCI scheduled across the sub-frame with the predetermined format is cross-sub-frame scheduled, and only needs to blindly detect the DCI scheduled across the sub-frame with the predetermined format; on the contrary, the base station may select the DCI scheduled in the same subframe of the predetermined format, and accordingly, the UE assumes the same subframe scheduling, and only needs to blindly detect the DCI scheduled in the same subframe of the predetermined format.

Fig. 15 shows a schematic flow chart of a method 1500 of transmitting control information according to yet another embodiment of the invention. The method 1500 is performed by a UE, as shown in fig. 15, the method 1500 includes:

s1510, sending UE capability information to the base station;

s1520, detecting DCI of a predetermined format according to the capability information of the UE, where the DCI of the predetermined format includes DCI scheduled in a same subframe of the predetermined format or DCI scheduled across subframes of the predetermined format, and the DCI of the predetermined format is selected by the base station according to the capability information of the UE.

The method for transmitting the control information of the embodiment of the invention can simultaneously support same-subframe scheduling and cross-subframe scheduling by sending the UE capability information to the base station and detecting the DCI with the preset format according to the UE capability information, thereby improving the scheduling flexibility.

In the embodiment of the present invention, optionally, if the UE can tolerate a delay, the UE detects the cross-subframe scheduled DCI of the predetermined format; or, if the UE cannot tolerate the delay, the UE detects the DCI scheduled by the same subframe of the predetermined format.

Fig. 16 shows a schematic block diagram of a base station 1600 according to a further embodiment of the invention. As shown in fig. 16, the base station 1600 includes:

a generating module 1610 configured to generate first resource location indicator information according to a narrowband subframe location of a data channel of a user equipment UE when a coverage enhancement parameter is not greater than a predetermined threshold, where the coverage enhancement parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

a sending module 1620, configured to send the first resource location indication information to the UE through a higher layer signaling, so that the UE determines a narrowband location of a data channel of the UE according to the first resource location indication information.

The base station of the embodiment of the invention sends the first resource position indication information generated according to the narrow-band subframe position of the data channel of the UE to the UE through the high-level signaling, thereby improving the scheduling flexibility.

the sending module 1620 is further configured to:

Optionally, the higher layer signaling is a random access response RAR or a radio resource control RRC dedicated signaling.

The base station 1600 according to the embodiment of the present invention may correspond to the base station in the method 1200 for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the base station 1600 are respectively to implement corresponding flows of the foregoing methods, and are not described herein again for brevity.

Fig. 17 shows a schematic block diagram of a UE1700 according to a further embodiment of the present invention. As shown in fig. 17, the UE1700 includes:

a receiving module 1710, configured to receive first resource location indication information sent by a base station through a high-level signaling, where the first resource location indication information is generated by the base station according to a narrowband subframe location of a data channel of a user equipment UE when a coverage enhancement feature parameter is not greater than a predetermined threshold, where the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

a determining module 1720 for determining a location of a narrow band of a data channel of the UE according to the first resource location indication information.

The UE of the embodiment of the invention can improve the scheduling flexibility by receiving the first resource position indication information which is sent by the base station through the high-level signaling and is generated according to the narrow-band subframe position of the data channel of the UE.

Optionally, in an embodiment of the present invention, the determining module 1720 is specifically configured to, when the first resource location indication information includes frequency domain location information of one narrow band, determine that an interval between a subframe of the narrow band of the data channel of the UE and a subframe of a control channel scheduling the UE is 1, and determine the frequency domain location of the narrow band of the data channel of the UE according to the frequency domain location information of the one narrow band.

Optionally, in another embodiment of the present invention, the determining module 1720 is specifically configured to determine, when the first resource location indication information includes frequency domain location information of multiple narrow bands, that an interval between a subframe of a narrow band of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1;

the receiving module 1710 is further configured to receive downlink control information DCI sent by the base station through the control channel, where the DCI includes second resource location indication information, and the second resource location indication information indicates a narrowband of a data channel of the UE among the multiple narrowbands;

the determining module 1720 is specifically configured to determine a frequency domain location of a narrowband of a data channel of the UE according to the frequency domain location information of the multiple narrowband and the second resource location indication information.

Optionally, in another embodiment of the present invention, the determining module 1720 is specifically configured to determine that, when the first resource location indication information indicates co-subframe scheduling, an interval between a subframe of a narrowband of the data channel of the UE and a subframe of a control channel for scheduling the UE is 0, and the narrowband of the data channel of the UE is the same as the narrowband of the control channel.

The UE1700 according to the embodiment of the present invention may correspond to the UE in the method 1300 for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the UE1700 are respectively for implementing corresponding processes of the foregoing methods, and are not described herein again for brevity.

Fig. 18 shows a schematic block diagram of a base station 1800 according to a further embodiment of the invention. As shown in fig. 18, the base station 1800 includes:

a receiving module 1810, configured to receive capability information of a user equipment UE sent by the UE;

a selecting module 1820, configured to select DCI of a predetermined format according to the capability information of the UE, where the DCI of the predetermined format includes DCI scheduled in the same subframe of the predetermined format or DCI scheduled across subframes of the predetermined format;

a transmitting module 1830, configured to transmit the DCI of the predetermined format to the UE.

According to the base station of the embodiment of the invention, DCIs with different predetermined formats are selected to be transmitted according to the capability information of the UE, so that the same subframe scheduling and cross-subframe scheduling can be simultaneously supported, and the scheduling flexibility can be improved.

In this embodiment of the present invention, optionally, the selecting module 1820 is specifically configured to:

The base station 1800 according to the embodiment of the present invention may correspond to the base station in the method 1400 for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the base station 1800 are respectively for implementing the corresponding flow of each method, and are not described herein again for brevity.

Fig. 19 shows a schematic block diagram of a UE1900 according to yet another embodiment of the present invention. As shown in fig. 19, the UE1900 includes:

a sending module 1910 configured to send the UE capability information to a base station;

a detecting module 1920, configured to detect downlink control information DCI with a predetermined format according to the capability information of the UE, where the DCI with the predetermined format includes DCI scheduled in the same subframe of the predetermined format or DCI scheduled in a cross-subframe of the predetermined format, and the DCI with the predetermined format is selected by the base station according to the capability information of the UE.

The UE of the embodiment of the invention can simultaneously support same-subframe scheduling and cross-subframe scheduling by sending the UE capability information to the base station and detecting the DCI with the preset format according to the UE capability information, thereby improving the scheduling flexibility.

In this embodiment of the present invention, optionally, the detecting module 1920 is specifically configured to:

The UE1900 according to the embodiment of the present invention may correspond to the UE in the method 1500 for transmitting control information according to the embodiment of the present invention, and the above and other operations and/or functions of each module in the UE1900 are respectively for implementing corresponding processes of each aforementioned method, and are not described herein again for brevity.

Fig. 20 shows a structure of a base station according to still another embodiment of the present invention, which includes at least one processor 2002 (e.g., CPU), at least one network interface 2005 or other communication interface, a memory 2006, and at least one communication bus 2003 for implementing connection communication between these devices. The processor 2002 is configured to execute executable modules, such as computer programs, stored in the memory 2006. The memory 2006 may include a Random Access Memory (RAM) and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is realized through at least one network interface 2005 (which may be wired or wireless).

In some embodiments, the memory 2006 stores a program 20061 and the processor 2002 executes the program 20061 for performing the following operations:

Optionally, an interval between a subframe of a narrow band of the data channel of the UE and a subframe of a control channel scheduling the UE is 1, and the first resource location indication information is frequency domain location information of the narrow band of the data channel of the UE.

Optionally, an interval between a subframe of a narrowband of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1, and the first resource location indication information includes frequency domain location information of a plurality of narrowbands;

processor 2002 is further configured to send, to the UE, downlink control information DCI via the control channel, the DCI including second resource location indication information indicating, among the plurality of narrow bands, a narrow band of a data channel of the UE.

Optionally, an interval between a narrowband subframe of the data channel of the UE and a subframe of a control channel scheduling the UE is 0, and the first resource location indication information indicates scheduling in the same subframe.

It can be seen from the above technical solutions provided in the embodiments of the present invention that, the first resource location indication information generated according to the narrowband subframe location of the data channel of the UE is sent to the UE through the high-level signaling, so that the scheduling flexibility can be improved.

Fig. 21 shows a structure of a UE provided by another embodiment of the present invention, which includes at least one processor 2102 (e.g., a CPU), at least one network interface 2105 or other communication interface, a memory 2106, and at least one communication bus 2103 for implementing connection communication between these devices. The processor 2102 is configured to execute executable modules, such as computer programs, stored in the memory 2106. The memory 2106 may include a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is realized through at least one network interface 2105 (which may be wired or wireless).

In some embodiments, the memory 2106 stores programs 21061, and the processor 2102 executes the programs 21061 for performing the following:

Optionally, the processor 2102 is specifically configured to, when the first resource location indication information includes frequency domain location information of one narrow band, determine that an interval between a subframe of the narrow band of the data channel of the UE and a subframe of a control channel scheduling the UE is 1, and determine the frequency domain location of the narrow band of the data channel of the UE according to the frequency domain location information of the one narrow band.

Optionally, the processor 2102 is specifically configured to determine, when the first resource location indication information includes multiple narrowband frequency domain location information, that an interval between a narrowband subframe of a data channel of the UE and a subframe of a control channel scheduling the UE is a predetermined value greater than 1;

Optionally, the processor 2102 is specifically configured to determine that, when the first resource location indication information indicates co-subframe scheduling, an interval between a subframe of a narrowband of the data channel of the UE and a subframe of a control channel for scheduling the UE is 0, and the narrowband of the data channel of the UE is the same as the narrowband of the control channel.

It can be seen from the above technical solutions provided in the embodiments of the present invention that, by receiving the first resource location indication information generated according to the narrowband subframe location of the data channel of the UE and sent by the base station through the high-level signaling, the embodiments of the present invention can improve the scheduling flexibility.

Fig. 22 shows a structure of a base station provided by another embodiment of the present invention, which includes at least one processor 2202 (e.g., a CPU), at least one network interface 2205 or other communication interfaces, a memory 2206, and at least one communication bus 2203 for implementing connection communication between these devices. The processor 2202 is used to execute executable modules, such as computer programs, stored in the memory 2206. The memory 2206 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is realized through at least one network interface 2205 (which may be wired or wireless).

In some embodiments, the memory 2206 stores the programs 22061, and the processor 2202 executes the programs 22061 to perform the following operations:

receiving capability information of User Equipment (UE) sent by the UE;

and transmitting the DCI of the predetermined format to the UE.

Optionally, the processor 2202 is specifically configured to:

It can be seen from the above technical solutions provided in the embodiments of the present invention that, according to the capability information of the UE, the embodiments of the present invention select DCI with different predetermined formats for transmission, which can simultaneously support same-subframe scheduling and cross-subframe scheduling, and can improve scheduling flexibility.

Fig. 23 shows a structure of a UE provided by a further embodiment of the present invention, which includes at least one processor 2302 (e.g., a CPU), at least one network interface 2305 or other communication interfaces, a memory 2306, and at least one communication bus 2303 for implementing connection communication between these devices. The processor 2302 is used to execute executable modules, such as computer programs, stored in the memory 2306. The memory 2306 may include a Random Access Memory (RAM) or may further include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection with at least one other network element is realized through at least one network interface 2305 (which may be wired or wireless).

In some embodiments, the memory 2306 stores programs 23061, and the processor 2302 executes the programs 23061 to perform the operations of:

transmitting the UE capability information to a base station;

Optionally, the processor 2302 is specifically configured to:

It can be seen from the above technical solutions provided in the embodiments of the present invention that, by sending the UE capability information to the base station and detecting the DCI with the predetermined format according to the UE capability information, the embodiments of the present invention can support the same-subframe scheduling and the cross-subframe scheduling at the same time, and can improve the scheduling flexibility.

It should be understood that the specific examples in the embodiments of the present invention are provided only to help those skilled in the art better understand the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention.

It should be understood that, in the embodiment of the present invention, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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 ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a 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 stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned 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 other various media capable of storing program codes.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting control information, comprising:

generating Downlink Control Information (DCI) according to a coverage enhancement characteristic parameter, wherein when the coverage enhancement characteristic parameter is not greater than a predetermined threshold value, the DCI comprises narrowband position indication information, or when the coverage enhancement characteristic parameter is greater than the predetermined threshold value, the DCI does not comprise the narrowband position indication information, the narrowband position indication information comprises at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement characteristic parameter comprises a coverage enhancement grade or a repetition number required by coverage enhancement;

and sending the DCI to User Equipment (UE) through a control channel, so that the UE determines the position of a narrow band of a data channel of the UE according to the narrow band position indication information when the DCI comprises the narrow band position indication information, or determines the position of the narrow band of the data channel of the UE according to predetermined narrow band position information when the DCI does not comprise the narrow band position indication information.

2. The method of claim 1, wherein when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE, or wherein the narrowband position indication information indicates an offset value of a narrowband of the data channel of the UE relative to a position of the control channel.

3. The method of claim 1 or 2, wherein the narrowband subframe indication information comprises cross-subframe scheduling indication information when included in the DCI.

4. The method of any of claims 1 to 3, wherein when the narrowband position indication information is included in the DCI, the DCI is in DCI format 1A or a format with the same length as DCI format 1A.

5. The method of any one of claims 1 to 4, wherein the predetermined narrowband location information is an offset value of a narrowband of a data channel of the UE relative to a location of the control channel when the narrowband location indication information is not included in the DCI.

6. The method according to any one of claims 1 to 5, further comprising:

and sending the preset narrowband position information to the UE.

7. The method of claim 6, wherein the sending the predetermined narrowband location information to the UE comprises:

and sending the preset narrowband position information to the UE through high-level signaling.

8. The method of claim 6 or 7, wherein the sending the predetermined narrowband location information to the UE comprises:

and sending the preset narrowband position information to the UE through master information block MIB information, system information block SIB information, random access response RAR or radio resource control RRC dedicated signaling.

9. The method of any of claims 1 to 8, wherein a resource block allocation field in the DCI carries resource allocation information for a data channel of the UE within a narrow band.

10. The method of any of claims 1 to 9, wherein when the narrowband position indication information is not included in the DCI, the DCI is in DCI format 1C or a format with the same length as DCI format 1C.

11. A method of transmitting control information, comprising:

and when the DCI comprises the narrowband position indication information, determining the position of a narrowband of a data channel of User Equipment (UE) according to the narrowband position indication information, or when the DCI does not comprise the narrowband position indication information, determining the position of a narrowband of the data channel of the UE according to preset narrowband position information.

12. The method of claim 11, wherein when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE or the narrowband position indication information indicates an offset value of a narrowband of the data channel of the UE relative to a position of the control channel.

13. The method of claim 11 or 12, wherein when the narrowband position indication information is included in the DCI, the narrowband subframe indication information comprises cross-subframe scheduling indication information.

14. The method of any of claims 11 to 13, wherein when the narrowband position indication information is included in the DCI, the DCI is in DCI format 1A or a format with the same length as DCI format 1A.

15. The method of any of claims 11 to 14, wherein the predetermined narrowband location information is an offset value of a narrowband of a data channel of the UE relative to a location of the control channel when the narrowband location indication information is not included in the DCI.

16. The method according to any one of claims 11 to 15, further comprising:

17. The method of claim 16, wherein the receiving the predetermined narrowband location information sent by the base station comprises:

and receiving the preset narrowband position information sent by the base station through high-level signaling.

18. The method according to claim 16 or 17, wherein the receiving the predetermined narrowband location information sent by the base station comprises:

19. The method of any of claims 11 to 18, wherein a resource block allocation field in the DCI carries resource allocation information within a narrow band of a data channel of the UE.

20. The method of any of claims 11 to 19, wherein when the narrowband position indication information is not included in the DCI, the DCI is in DCI format 1C or a format with the same length as DCI format 1C.

21. A base station, comprising:

a generating module, configured to generate DCI according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, where the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a number of repetitions required for coverage enhancement;

a sending module, configured to send the DCI to a user equipment UE through a control channel, so that the UE determines a narrowband position of a data channel of the UE according to the narrowband position indication information when the DCI includes the narrowband position indication information, or determines a narrowband position of the data channel of the UE according to predetermined narrowband position information when the DCI does not include the narrowband position indication information.

22. The base station of claim 21, wherein when the narrowband position indication information is included in the DCI, the narrowband position indication information indicates an index of a narrowband of a data channel of the UE or the narrowband position indication information indicates an offset value of a narrowband of the data channel of the UE relative to a position of the control channel.

23. The base station of claim 21 or 22, wherein when the narrowband position indication information is included in the DCI, the narrowband subframe indication information comprises cross-subframe scheduling indication information.

24. The base station of any of claims 21 to 23, wherein when the narrowband position indication information is included in the DCI, the DCI is in DCI format 1A or a format with a length equal to DCI format 1A.

25. The base station of any of claims 21 to 24, wherein when the narrowband position indication information is not included in the DCI, the predetermined narrowband position information is an offset value of a narrowband of a data channel of the UE relative to a position of the control channel.

26. The base station according to any of claims 21 to 25, wherein the transmitting module is further configured to transmit the predetermined narrowband location information to the UE.

27. The base station of claim 26, wherein the sending module is specifically configured to send the predetermined narrowband location information to the UE through higher layer signaling.

28. The base station according to claim 26 or 27, wherein the sending module is specifically configured to send the predetermined narrowband location information to the UE via a master information block, MIB, message, a system information block, SIB, a random access response, RAR, or radio resource control, RRC, dedicated signaling.

29. The base station of any of claims 21 to 28, wherein a resource block allocation field in the DCI carries resource allocation information for the UE within a narrow band.

30. The base station of any of claims 21 to 29, wherein when the narrowband position indication information is not included in the DCI, the DCI is in DCI format 1C or a format with a length equal to DCI format 1C.

31. A User Equipment (UE), comprising:

a receiving module, configured to receive downlink control information DCI sent by a base station through a control channel, where the DCI is generated by the base station according to a coverage enhancement feature parameter, where the DCI includes narrowband position indication information when the coverage enhancement feature parameter is not greater than a predetermined threshold, or the DCI does not include the narrowband position indication information when the coverage enhancement feature parameter is greater than the predetermined threshold, the narrowband position indication information includes at least one of narrowband resource block set indication information and narrowband subframe indication information, and the coverage enhancement feature parameter includes a coverage enhancement level or a repetition number required for coverage enhancement;

32. The UE of claim 31, wherein the narrowband position indication information indicates an index of a narrowband of a data channel of the UE or indicates an offset value of a narrowband of the data channel of the UE relative to a position of the control channel when the narrowband position indication information is included in the DCI.

33. The UE of claim 31 or 32, wherein the narrowband subframe indication information comprises cross-subframe scheduling indication information when included in the DCI.

34. The UE of any of claims 31-33, wherein when the narrowband position indication information is included in the DCI, the DCI is in DCI format 1A or a format that is the same length as DCI format 1A.

35. The UE of any of claims 31-34, wherein the predetermined narrowband location information is an offset value of a narrowband of a data channel of the UE relative to a location of the control channel when the narrowband location indication information is not included in the DCI.

36. The UE of any one of claims 31 to 35, wherein the receiving module is further configured to receive the predetermined narrowband location information sent by the base station.

37. The UE of claim 36, wherein the receiving module is specifically configured to receive the predetermined narrowband location information sent by the base station through higher layer signaling.

38. The UE according to claim 36 or 37, wherein the receiving module is specifically configured to receive the predetermined narrowband location information sent by the base station via a master information block, MIB, message, a system information block, SIB, a random access response, RAR, or radio resource control, RRC, dedicated signaling.

39. The UE of any of claims 31 to 38, wherein a resource block allocation field in the DCI carries resource allocation information within a narrow band of a data channel of the UE.

40. The UE of any of claims 31 to 39, wherein when the narrowband position indication information is not included in the DCI, the DCI is in DCI format 1C or a format with a length equal to DCI format 1C.

41. A method of transmitting control information, comprising:

and sending the first resource position indication information to the UE through a high-level signaling so that the UE determines the position of the narrow band of the data channel of the UE according to the first resource position indication information.

42. The method of claim 41,

the interval between the subframe of the narrow band of the data channel of the UE and the subframe of the control channel for scheduling the UE is 1, and the first resource position indication information is frequency domain position information of the narrow band of the data channel of the UE.

43. The method of claim 41,

the interval between the sub-frame of the narrow band of the data channel of the UE and the sub-frame of the control channel of the UE is a preset value larger than 1, and the first resource position indication information comprises frequency domain position information of a plurality of narrow bands;

the method further comprises the following steps:

and sending Downlink Control Information (DCI) to the UE through the control channel, wherein the DCI comprises second resource position indication information, and the second resource position indication information indicates the narrow band of the data channel of the UE in the plurality of narrow bands.

44. The method of claim 41,

the interval between the narrow-band subframe of the data channel of the UE and the subframe of the control channel for scheduling the UE is 0, and the first resource position indication information indicates the same subframe scheduling.

45. The method according to any of the claims 41 to 44, wherein the higher layer signaling is random Access response, RAR, or radio resource control, RRC, specific signaling.

46. A method of transmitting control information, comprising:

receiving first resource position indication information sent by a base station through a high-level signaling, wherein the first resource position indication information is generated by the base station according to the narrow-band subframe position of a data channel of User Equipment (UE) when a coverage enhancement characteristic parameter is not larger than a preset threshold value, and the coverage enhancement characteristic parameter comprises a coverage enhancement grade or the number of repetition times required by coverage enhancement;

47. The method of claim 46, wherein the determining the location of the narrowband of the UE's data channel based on the first resource location indication information comprises:

48. The method of claim 46, wherein the determining the location of the narrowband of the UE's data channel based on the first resource location indication information comprises:

when the first resource position indication information comprises frequency domain position information of a plurality of narrow bands, determining that an interval between a sub-frame of the narrow band of the data channel of the UE and a sub-frame of a control channel scheduling the UE is a preset value larger than 1;

receiving Downlink Control Information (DCI) sent by the base station through the control channel, wherein the DCI comprises second resource position indication information, and the second resource position indication information indicates a narrow band of a data channel of the UE in the plurality of narrow bands;

49. The method of claim 46, wherein the determining the location of the narrowband of the UE's data channel based on the first resource location indication information comprises:

when the first resource position indication information indicates co-subframe scheduling, determining that the interval between the subframe of the narrow band of the data channel of the UE and the subframe of the control channel for scheduling the UE is 0 and the narrow band of the data channel of the UE is the same as the narrow band of the control channel.

50. The method according to any of the claims 46 to 49, wherein the higher layer signaling is random Access response, RAR, or radio resource control, RRC, specific signaling.

51. A method of transmitting control information, comprising:

receiving capability information of User Equipment (UE) sent by the UE;

selecting Downlink Control Information (DCI) of a predetermined format according to the capability information of the UE, wherein the DCI of the predetermined format comprises the same subframe scheduling DCI of the predetermined format or cross-subframe scheduling DCI of the predetermined format;

sending the DCI of the predetermined format to the UE, wherein the selecting the DCI of the predetermined format according to the capability information of the UE comprises:

if the UE can tolerate time delay, selecting the cross-subframe scheduling DCI with the preset format; alternatively, the first and second electrodes may be,

52. A method of transmitting control information, comprising:

sending User Equipment (UE) capability information to a base station;

detecting Downlink Control Information (DCI) of a predetermined format according to the capability information of the UE, wherein the DCI of the predetermined format comprises the same subframe scheduling DCI of the predetermined format or cross-subframe scheduling DCI of the predetermined format, and the DCI of the predetermined format is selected by the base station according to the capability information of the UE, and the detecting the DCI of the predetermined format according to the capability information of the UE comprises the following steps:

if the UE can tolerate time delay, detecting the DCI of the cross-subframe scheduling of the preset format; alternatively, the first and second electrodes may be,

53. A base station, comprising:

a sending module, configured to send the first resource location indication information to the UE through a high-level signaling, so that the UE determines a location of a narrowband of a data channel of the UE according to the first resource location indication information.

54. The base station of claim 53, wherein the interval between the subframe of the narrow band of the UE data channel and the subframe of the control channel scheduling the UE is 1, and wherein the first resource location indication information is the frequency domain location information of the narrow band of the UE data channel.

55. The base station of claim 53, wherein the interval between the sub-frame of the narrow band of the UE's data channel and the sub-frame of the control channel scheduling the UE is a predetermined value greater than 1, and the first resource location indication information comprises frequency domain location information of multiple narrow bands;

the sending module is further configured to:

56. The base station of claim 53, wherein the interval between the sub-frame of the narrow band of the UE's data channel and the sub-frame of the control channel scheduling the UE is 0, and wherein the first resource location indication information indicates co-sub-frame scheduling.

57. The base station according to any of claims 53 to 56, wherein the higher layer signaling is random Access response, RAR, or radio resource control, RRC, specific signaling.

58. A User Equipment (UE), comprising:

59. The UE of claim 58, wherein the determining module is specifically configured to determine, when the first resource location indication information includes frequency domain location information of one narrow band, that a spacing between a subframe of the narrow band of the data channel of the UE and a subframe of a control channel scheduling the UE is 1, and determine the frequency domain location of the narrow band of the data channel of the UE according to the frequency domain location information of the one narrow band.

60. The UE of claim 58, wherein the determining module is specifically configured to determine, when the first resource location indication information includes multiple narrowband frequency domain location information, that a spacing between a narrowband subframe of a data channel of the UE and a subframe scheduling a control channel of the UE is a predetermined value greater than 1;

the receiving module is further configured to receive DCI sent by the base station through the control channel, where the DCI includes second resource location indication information, and the second resource location indication information indicates a narrowband of a data channel of the UE in the multiple narrowband;

the determining module is specifically configured to determine, according to the frequency domain location information of the multiple narrow bands and the second resource location indication information, a frequency domain location of a narrow band of the data channel of the UE.

61. The UE of claim 58, wherein the determining module is specifically configured to determine that a subframe of a narrowband of a data channel of the UE is 0 apart from a subframe of a control channel scheduling the UE and the narrowband of the data channel of the UE is the same as the narrowband of the control channel when the first resource location indication information indicates co-subframe scheduling.

62. The UE according to any of claims 58 to 61, wherein the higher layer signaling is random Access response, RAR, or radio resource control, RRC, specific signaling.

63. A base station, comprising:

the receiving module is used for receiving the capability information of the UE sent by the UE;

a transmission module for transmitting the DCI of the predetermined format to the UE, wherein,

the selection module is specifically configured to:

64. A User Equipment (UE), comprising:

a detection module, configured to detect DCI of a predetermined format according to the capability information of the UE, where the DCI of the predetermined format includes DCI scheduled in the same subframe of the predetermined format or DCI scheduled across subframes of the predetermined format, and the DCI of the predetermined format is selected by the base station according to the capability information of the UE,

the detection module is specifically configured to: