CN107295650B

CN107295650B - A kind of downlink control information transmission method, base station, UE and system

Info

Publication number: CN107295650B
Application number: CN201610200411.4A
Authority: CN
Inventors: 王磊; 潘学明
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2019-11-15
Anticipated expiration: 2036-03-31
Also published as: WO2017167124A1; CN107295650A

Abstract

The present invention provides a kind of downlink control information transmission method, base station, UE and system, this method can include: determine the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein, the down control channel resources are the specific frequency domain resource in the TTI, the TTI includes N number of OFDM symbol, and the N is the positive integer more than or equal to 1；Downlink Control Information is transmitted to the UE using down control channel on the down control channel resources.The embodiment of the present invention can preferably support future type type of service abundant.

Description

A kind of downlink control information transmission method, base station, UE and system

Technical field

The present invention relates to field of communication technology, in particular to a kind of downlink control information transmission method, base station, user terminal (UE, User Equipment) and system.

Background technique

With the development of mobile technology, richer type of service may be needed support in future mobile communication system.But Transmission Time Interval (TTI, Transmission Time in long term evolution (LTE, Long Term Evolution) system at present Interval) length is fixed as 1 millisecond (ms).And Physical Downlink Control Channel (PDCCH, Physical in current LTE system Downlink Control Channel) transmission mode be also only applicable to length be 1ms TTI.Therefore, LTE system at present Be not suitable for supporting future type type of service abundant.

Summary of the invention

The purpose of the present invention is to provide a kind of downlink control information transmission method, base station, UE and system, solve at present LTE system is not suitable for the problem of supporting future type type of service abundant.

In order to achieve the above object, the embodiment of the present invention provides a kind of downlink control information transmission method, comprising:

Determine the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein the downlink control Channel resource processed be the TTI in specific frequency domain resource, the TTI include N number of orthogonal frequency division multiplexi (OFDM, Orthogonal Frequency Division Multiplexing) symbol, the N is the positive integer more than or equal to 1；

Downlink Control Information is transmitted to the UE using down control channel on the down control channel resources.

Optionally, the down control channel resources are the exclusive down control channel resources of the UE, are gone back in the TTI Including the down control channel resources reserved for other UE, wherein the down control channel money reserved in the TTI for each UE Source is different；Or

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, In, the control channel unit (CCE, control channel element) in the down control channel resources is according to each The radio network temporary identifier (RNTI, Radio Network Temporary Identity) of UE is distinguished.

Optionally, the down control channel resources reserved in the TTI are used for when not needing transmission Downlink Control Information Downlink data transmission.

Optionally, the Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, the side Method further include:

Downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules.

Optionally, the downlink data transmission resource includes the down control channel resources reserved for other UE, wherein In The downlink data transmission resource include be to forbid sending downlink control letter on the reserved down control channel resources of other UE Breath；Or

The downlink data transmission resource does not include the down control channel resources reserved for other UE；Or

The downlink data transmission resource does not include the downlink control for needing to send Downlink Control Information reserved for other UE Channel resource processed；Or

The downlink data transmission resource include for other UE reserve no need to send the downlink controls of Downlink Control Information Channel resource processed；Or

The downlink data transmission resource does not include the downlink control for needing to send Downlink Control Information reserved for other UE Channel resource processed, but including for other UE reserve no need to send the down control channel resources of Downlink Control Information.

Optionally, the method also includes:

It sends a notification message to the UE, the notification message is for notifying the downlink data transmission resource whether there is The resource of downlink data is not sent, so that the UE has the resource for not sending downlink data in the downlink data transmission resource When, downlink data is received in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data, with And make the UE when the resource for not sending downlink data is not present in the downlink data transmission resource, it is passed in the downlink data Downlink data is received in all resources in defeated resource.

Optionally, described to transmit downlink to the UE in the downlink data transmission resource of the schedule information schedules Data, comprising:

It transmits in the downlink data transmission resource of the schedule information schedules to the UE and is scrambled by specific RNTI Downlink data.

Optionally, each TTI exists for the reserved down control channel resources of the UE in the downlink transmission period, If exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, passed in the downlink data It is that the reserved down control channel resources of the UE do not send Downlink Control Information in defeated resource；Or

Preceding H TTI in the downlink transmission period exists for the reserved down control channel resources of the UE, and removes institute The down control channel resources reserved for the UE are not present in all TTI before stating except H TTI, if the downlink data It is described in the downlink data transmission resource when existing for the down control channel resources that the UE is reserved in transfer resource UE reserved down control channel resources do not send Downlink Control Information, wherein the H is the integer more than or equal to 1；Or Person

Multiple TTI of the reserved down control channel resources of UE phase each other is existed in the downlink transmission period Every M TTI, if exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, described It is that the reserved down control channel resources of the UE do not send Downlink Control Information in downlink data transmission resource, wherein the M For the positive integer more than or equal to 1.

Optionally, the down control channel resources reserved in TTI of the determination in downlink transmission period for UE, packet It includes:

Determine to be the UE in the TTI according to the number of the RNTI of the UE and the TTI in downlink transmission period Reserved down control channel resources.

The embodiment of the present invention also provides a kind of downlink control information transmission method, comprising:

UE determines to be the reserved down control channel resources of the UE in the TTI in downlink transmission period, wherein described Down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N be greater than Or the positive integer equal to 1；

Blind examination is carried out on the down control channel resources, is made with obtaining base station on the down control channel resources The Downlink Control Information transmitted with down control channel.

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, In, the CCE in the down control channel resources is distinguished according to the RNTI of each UE.

The UE is received in the downlink data transmission resource of the schedule information schedules under the base station transmission Row data.

Optionally, the method also includes:

The notification message that the base station is sent is received, the notification message is for notifying that the downlink data transmission resource is It is no to there is the resource for not sending downlink data；

The UE receives the lower line number of base station transmission in the downlink data transmission resource of the schedule information schedules According to, comprising:

For the UE when the downlink data transmission resource has the resource for not sending downlink data, determination does not send downlink The resource of data, and base is received in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data Stand send downlink data；

The UE is when the resource for not sending downlink data is not present in the downlink data transmission resource, in the lower line number The downlink data sent according to base station is received in all resources in transfer resource.

Optionally, the UE receives base station transmission in the downlink data transmission resource of the schedule information schedules Downlink data, comprising:

The UE received in the downlink data transmission resource of the schedule information schedules base station transmission by The specific scrambled downlink data of RNTI.

Optionally, each TTI exists for the reserved down control channel resources of the UE in the downlink transmission period, If exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, the UE is in the downlink It is the reserved down control channel resources of the UE in data transmission resources without blind examination；Or

Preceding H TTI in the downlink transmission period exists for the reserved down control channel resources of the UE, and removes institute The down control channel resources reserved for the UE are not present in all TTI before stating except H TTI, if the downlink data When existing for the down control channel resources that the UE is reserved in transfer resource, the UE is in the downlink data transmission resource It is the UE reserved down control channel resources without blind examination, wherein the H is the integer more than or equal to 1；Or

Multiple TTI of the reserved down control channel resources of UE phase each other is existed in the downlink transmission period Every M TTI, if exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, the UE It is the reserved down control channel resources of the UE in the downlink data transmission resource without blind examination, wherein the M is Positive integer more than or equal to 1.

Optionally, the UE determines to be the reserved down control channel money of the UE in the TTI in downlink transmission period Source, comprising:

The UE determines in the TTI to be that the UE is pre- according to the number of RNTI and the TTI in downlink transmission period The down control channel resources stayed.

The embodiment of the present invention also provides a kind of base station, comprising:

Determining module, for determining the down control channel resources reserved in the TTI in downlink transmission period for UE, In, the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N For the positive integer more than or equal to 1；

First transmission module, for being transmitted using down control channel to the UE on the down control channel resources Downlink Control Information.

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, In, the control channel unit CCE in the down control channel resources is distinguished according to the RNTI of each UE.

Optionally, the base station further include:

Second transmission module, for include in the Downlink Control Information UE downlink data transmission resource scheduling When information, downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules.

Optionally, the base station further include:

Third transmission module, for sending a notification message to the UE, the notification message is for notifying the lower line number It whether there is the resource for not sending downlink data according to transfer resource, so that the UE exists not in the downlink data transmission resource When sending the resource of downlink data, the resource in the downlink data transmission resource in addition to the resource for not sending downlink data Upper reception downlink data, and make the UE that the resource for not sending downlink data be not present in the downlink data transmission resource When, downlink data is received in all resources in the downlink data transmission resource.

Optionally, second transmission module is used for the downlink data transmission resource in the schedule information schedules It transmits to the UE by the scrambled downlink data of specific RNTI.

Optionally, the determining module is used for the volume according to the RNTI and the TTI of the UE in downlink transmission period Number determine in the TTI to be the reserved down control channel resources of the UE.

The embodiment of the present invention also provides a kind of UE, comprising:

Determining module is the reserved down control channel money of the UE in the TTI in downlink transmission period for determining Source, wherein the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, The N is the positive integer more than or equal to 1；

Blind examination module, for carrying out blind examination on the down control channel resources, to obtain base station in the downlink control The Downlink Control Information transmitted on channel resource processed using down control channel.

Optionally, the UE further include:

First receiving module, for include in the Downlink Control Information UE downlink data transmission resource scheduling When information, the downlink data of the base station transmission is received in the downlink data transmission resource of the schedule information schedules.

Optionally, the UE further include:

Second receiving module, the notification message sent for receiving the base station, the notification message are described for notifying Downlink data transmission resource whether there is the resource for not sending downlink data；

First receiving module is used for when the downlink data transmission resource has the resource for not sending downlink data, Determine the resource for not sending downlink data, and in the downlink data transmission resource in addition to the resource for not sending downlink data Resource on receive base station send downlink data；

First receiving module does not send the resource of downlink data for being not present in the downlink data transmission resource When, the downlink data that base station is sent is received in all resources in the downlink data transmission resource.

Optionally, first receiving module is used for the downlink data transmission resource in the schedule information schedules Receive base station transmission by the scrambled downlink data of specific RNTI.

Optionally, the determining module is used to determine institute according to the number of RNTI and the TTI in downlink transmission period Stating is the reserved down control channel resources of the UE in TTI.

The embodiment of the present invention also provides a kind of Downlink Control Information Transmission system, comprising:

Base station, for determining the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein The down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, and the N is Positive integer more than or equal to 1；

Under the base station is also used on the down control channel resources transmit using down control channel to the UE Row control information；

The UE is the reserved down control channel resources of the UE in the TTI for determining；

The UE is also used to carry out blind examination on the down control channel resources, to obtain the base station in the downlink The Downlink Control Information transmitted in control channel resource using down control channel.

Above-mentioned technical proposal of the invention at least has the following beneficial effects:

The embodiment of the present invention uses on the down control channel resources reserved in the TTI in downlink transmission period for UE Down control channel transmits Downlink Control Information to UE.And above-mentioned TTI includes N number of OFDM symbol, the N be more than or equal to 1 positive integer.The length that TTI may be implemented in this way is variable, and downlink can also be used on the down control channel resources of TTI Control channel transmits Downlink Control Information, and TTI length, which is fixed on 1ms and PDCCH and is only applicable to length, compared to the prior art is The TTI of 1ms so that the embodiment of the present invention can preferably support future type type of service abundant, and then is solved at present LTE system is not suitable for the problem of supporting future type type of service abundant.

Detailed description of the invention

Fig. 1 is schematic network structure provided in an embodiment of the present invention；

Fig. 2 is a kind of flow diagram of downlink control information transmission method provided in an embodiment of the present invention；

Fig. 3 is the flow diagram of another downlink control information transmission method provided in an embodiment of the present invention；

Fig. 4 is a kind of schematic diagram of Downlink Control Information and downlink data transmission provided in an embodiment of the present invention；

Fig. 5 is a kind of schematic diagram of UE blind examination provided in an embodiment of the present invention；

Fig. 6 is the schematic diagram of another Downlink Control Information and downlink data transmission provided in an embodiment of the present invention；

Fig. 7 is the schematic diagram of another kind UE blind examination provided in an embodiment of the present invention；

Fig. 8 is the schematic diagram of another Downlink Control Information and downlink data transmission provided in an embodiment of the present invention；

Fig. 9 is the schematic diagram of another kind UE blind examination provided in an embodiment of the present invention；

Figure 10 is the schematic diagram of another Downlink Control Information and downlink data transmission provided in an embodiment of the present invention；

Figure 11 is the schematic diagram of another kind UE blind examination provided in an embodiment of the present invention；

Figure 12 is the schematic diagram of another Downlink Control Information and downlink data transmission provided in an embodiment of the present invention；

Figure 13 is the schematic diagram of another kind UE blind examination provided in an embodiment of the present invention；

Figure 14 is the flow diagram of another downlink control information transmission method provided in an embodiment of the present invention；

Figure 15 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；

Figure 16 is the structural schematic diagram of another base station provided in an embodiment of the present invention；

Figure 17 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Figure 18 is the structural schematic diagram of another kind UE provided in an embodiment of the present invention；

Figure 19 is the structural schematic diagram of another base station provided in an embodiment of the present invention；

Figure 20 is the structural schematic diagram of another kind UE provided in an embodiment of the present invention；

Figure 21 is a kind of structural schematic diagram of Downlink Control Information Transmission system provided in an embodiment of the present invention.

Specific embodiment

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

Referring to Fig. 1, Fig. 1 be schematic network structure provided in an embodiment of the present invention, as shown in Figure 1, include one or Multiple UE11 and base station 12, wherein carry out citing signal in attached drawing with multiple UE1.Wherein, UE11 can be mobile phone, plate electricity Brain (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) Or the terminal devices such as wearable device (Wearable Device), it should be noted that in embodiments of the present invention and unlimited Determine the concrete type of UE11.UE11 can be established with base station 12 and be communicated, wherein the network in attached drawing can indicate UE11 and base station 12 wireless establish communicate, and base station 12 can be evolved base station (eNB, evolved Node B) or other base stations, need It is bright, the concrete type of base station 12 is not limited in embodiments of the present invention.

Based on network structure shown in FIG. 1, the embodiment of the present invention provides a kind of downlink control information transmission method, such as Fig. 2 It is shown, comprising the following steps:

201, the down control channel resources reserved in the TTI in downlink transmission period for UE are determined, wherein under described Row control channel resource is the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N be greater than or Person is equal to 1 positive integer.

202, Downlink Control Information is transmitted to the UE using down control channel on the down control channel resources.

In the present embodiment, wherein above-mentioned down control channel resources can be the portion in the frequency domain resource that above-mentioned TTI includes Divide frequency domain resource, such as: the frequency that above-mentioned down control channel resources can be some that TTI includes or multiple symbols include Part frequency domain resource in the resource of domain.Certainly, above-mentioned down control channel resources are also not excluded in some scenes can be All frequency domain resources of TTI are stated, this embodiment is not limited to this.In addition, step 201 determines above-mentioned down control channel resources It can be understood as the position that determination is the reserved down control channel resources of above-mentioned UE in above-mentioned TTI, because, it is every in TTI All there is specific position in a frequency domain resource, so determining that frequency domain resource can be understood as determining the frequency domain resource in TTI Position.In addition, it is above-mentioned UE reserved that the above-mentioned down control channel resources reserved for above-mentioned UE, which can be when executing step 201, Down control channel resources, or can be is the reserved down control channel resources of above-mentioned UE in TTI in advance, then by step Rapid 201 determine etc., and to this, this embodiment is not limited.

In addition, the time-domain resource shared by above-mentioned down control channel resources can be equal to or less than shared by above-mentioned TTI Time-domain resource.Above-mentioned TTI includes that N number of OFDM symbol can be understood as above-mentioned TTI and can be one or more OFDM, specifically , above-mentioned TTI includes that N number of OFDM symbol is also understood that and is made of for above-mentioned TTI N number of OFDM symbol.By this variable TTI can make the downlink control information transmission method in the present embodiment support future type type of service abundant.

In addition, the down control channel resources mentioned in the embodiment of the present invention can be for for down control channel transmission Frequency domain resource.

In the present embodiment, above-mentioned down control channel can be PDCCH, above-mentioned Downlink Control Information be scheduling information or Other control information, to this, this embodiment is not limited.

In the present embodiment, the above method can also be applied to the base station 12 in network structure shown in FIG. 1, i.e., base station 12 can To realize the above method.

The embodiment of the present invention uses on the down control channel resources reserved in the TTI in downlink transmission period for UE Down control channel transmits Downlink Control Information to UE.And above-mentioned TTI includes N number of OFDM symbol, the N be more than or equal to 1 positive integer.The length that TTI may be implemented in this way is variable, and downlink can also be used on the down control channel resources of TTI Control channel transmits Downlink Control Information, so as to preferably support future type type of service abundant.

Referring to Fig. 3, Fig. 3 is the process signal of another downlink control information transmission method provided in an embodiment of the present invention Figure, as shown in Figure 3, comprising the following steps:

301, the down control channel resources reserved in the TTI in downlink transmission period for UE are determined, wherein under described Row control channel resource is the frequency domain resource transmitted for down control channel, and the TTI includes N number of OFDM symbol, and the N is Positive integer more than or equal to 1.

302, Downlink Control Information is transmitted to the UE using down control channel on the down control channel resources.

Optionally, above-mentioned down control channel resources can be the exclusive down control channel resources of the UE, the TTI It inside further include the down control channel resources reserved for other UE, wherein control letter in the TTI for the downlink that each UE is reserved Road resource is different.

In the embodiment, it may be implemented to be the reserved down control channel resources of multiple UE in above-mentioned TTI, exist in this way In some scenes Downlink Control Information can be sent to multiple UE in the same TTI.In addition, pre- for each UE in above-mentioned TTI The down control channel resources stayed can be understood as be in TTI the reserved down control channel resources of each UE position not Together.Wherein, other above-mentioned UE can be one or more UE in addition to above-mentioned UE.

Optionally, it is that the downlink that multiple UE are reserved including the UE controls that above-mentioned down control channel resources, which can be, Channel resource, wherein the CCE in the down control channel resources is distinguished according to the RNTI of each UE.

In the embodiment, the shared identical down control channel resources of multiple UE may be implemented, can save down in this way The expense of row control information transmission.Certainly, the down control channel resources reserved here can be one or more downlink control Channel resource processed.Wherein, above-mentioned down control channel resources may include multiple CCE, in this way in the down control channel resources The interior CCE that each UE can be distinguished according to the RNTI of each UE, to send Downlink Control Information in different CCE, and each UE The CCE of oneself can be distinguished according to respective RNTI, to carry out blind examination on corresponding CCE to obtain the downlink of base station transmission Control information.In addition, above-mentioned multiple UE can be all UE or one group of UE.

Optionally, the down control channel resources reserved in above-mentioned TTI are used for when not needing transmission Downlink Control Information Downlink data transmission.

It in the embodiment, may be implemented that transmission downlink control letter will not be needed in TTI in above-mentioned downlink transmission period The down control channel resources of breath can be used for transmitting downlink data, i.e. base station can not need transmission Downlink Control Information Downlink data is transmitted to UE on down control channel resources, so as to save network transmission resource.Because in some scenes, Not all reserved down control channel resources require transmission Downlink Control Information in above-mentioned downlink transmission period.When So, in some scenes, if base station needs to send downlink data to other UE, for the reserved down control channel of above-mentioned UE For resource no need to send when Downlink Control Information, base station equally can be on the down control channel resources under other UE transmission Row data.

Optionally, above-mentioned Downlink Control Information may include the scheduling information of the downlink data transmission resource of the UE, institute State method further include:

303, downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules.

Wherein, above-mentioned downlink data transmission resource can be understood as the data area that downlink data is transmitted to above-mentioned UE.Separately Outside, above-mentioned downlink data transmission resource may include the part resource in the TTI in step 301.Such as: the TTI in step 301 In all resources in addition to the down control channel resources reserved for above-mentioned UE can be to make above-mentioned downlink data transmission money Source.In addition, above-mentioned downlink data transmission resource may include the resource in one or more TTI.Such as: above-mentioned downlink data Transfer resource may include all moneys in TTI in step 301 in addition to the down control channel resources reserved for above-mentioned UE Source, and after the TTI one or more TTI resource.

Optionally, above-mentioned downlink data transmission resource may include the down control channel resources reserved for other UE, In, including in the downlink data transmission resource is to forbid sending downlink control on the reserved down control channel resources of other UE Information processed.

In the embodiment, it may be implemented under being sent using the down control channel resources reserved for other UE to above-mentioned UE Row data, so as to save transfer resource.In addition, using being the down control channel resources reserved of other UE to above-mentioned UE When sending downlink data, base station cannot include in above-mentioned downlink data transmission resource be the reserved down control channel of other UE The Downlink Control Information of other UE of resource transmission.

Optionally, the downlink data transmission resource can not include the down control channel resources reserved for other UE.

In the embodiment, can be implemented as do not include in the downlink data transmission resource of above-mentioned UE scheduling for other UE it is pre- The down control channel resources stayed are not take up the down control channel money reserved for other UE when transmitting downlink data to UE Source can not influence the transmission of the Downlink Control Information of other UE in this way.It can specifically be limited by scheduling, to avoid scheduling Downlink data transmission resource is included as the down control channel resources that other UE are reserved.

Optionally, the downlink data transmission resource can not include that the downlink control that needs to send reserved for other UE is believed The down control channel resources of breath.

In the embodiment, can be implemented as do not include in the downlink data transmission resource of above-mentioned UE scheduling for other UE it is pre- That stays needs to send the down control channel resources of Downlink Control Information, i.e., is not take up when transmitting downlink data to UE as other The UE reserved down control channel resources for needing to send Downlink Control Information can not influence the downlink control of other UE in this way The transmission of information.Wherein, it needs exist for sending can be needing to send Downlink Control Information in above-mentioned downlink transmission period.Tool Body can be limited by scheduling, when needing the down control channel resources using other UE, avoid above-mentioned downlink data transmission Resource is included as the down control channel resources that other UE are reserved.

Optionally, the downlink data transmission resource may include believing for reserved the controlling no need to send downlink of other UE The down control channel resources of breath.

In the embodiment, may be implemented above-mentioned downlink data transmission resource include other UE it is reserved no need to send under The down control channel resources of row control information, i.e., can occupy when sending downlink data to UE and not need for what other UE were reserved The down control channel resources of Downlink Control Information are sent, so as to save transfer resource.Wherein, above-mentioned no need to send under Row control information can be understood as in above-mentioned downlink transmission period that no need to send Downlink Control Information.

Optionally, the downlink data transmission resource does not include needing to send Downlink Control Information for what other UE were reserved Down control channel resources, but including can be other UE it is reserved no need to send the down control channels of Downlink Control Information Resource.

In the embodiment, it may be implemented not including needing to send downlink control letter in above-mentioned downlink data transmission resource The down control channel resources of breath, but including no need to send the down control channel resources of Downlink Control Information.So as to Transfer resource is saved, and avoids influencing the Downlink Control Information transmission of other UE.It can specifically be limited by scheduling, work as needs Using other UE down control channel resources when, avoiding above-mentioned downlink data transmission resource is included as that other terminals are reserved Down control channel resources, when not needing the down control channel resources using other UE, can using this part resource as Downlink data transmission resource allocation carries out downlink data transmission to above-mentioned UE.

Optionally, the above method can also include the following steps:

Wherein, above-mentioned notification message, which can be, transmits on above-mentioned down control channel resources, or can also be with What above-mentioned Downlink Control Information transmitted together etc., to this, this embodiment is not limited.In addition, above-mentioned notification message can notify be It whether is included as the reserved down control channel resources of other UE in the above-mentioned downlink data transmission resource of the UE configuration, and/ Or whether need to be reserved as the reserved down control channel resources of other UE.I.e. above-mentioned notification message can notify above-mentioned lower line number Whether include the down control channel resources reserved for other UE according to transfer resource, and can also notify these downlinks control letter Whether road resource, which needs, is reserved, wherein reserved down control channel resources is needed to can be understood as down control channel money Source needs to send Downlink Control Information, to not send downlink data in the down control channel resources.

Such as: above-mentioned notification message can with 1 bit notification whether include, if comprising, base station for the UE Institute is not transmitted in the down control channel resources reserved included in the above-mentioned downlink data transmission resource of distribution for other UE State the downlink data of UE.UE can be the down control channel resources definition by public (common), determine scheduled at it Above-mentioned downlink data transmission resource in the resource other than down control channel resources on receive downlink data.Into one Step, if the down control channel resources division mode exclusive using UE, base station can also be logical by the down control channel Know UE, with allow UE can obtain other UE down control channel resources parameter, such as the RNTI of other UE.UE in this way can root RNTI determination according to other UE includes the down control channel resources of other UE in above-mentioned downlink data transmission resource, thus Under being received in the resource other than the down control channel resources of other UE terminals in above-mentioned downlink data transmission resource Row data.If do not included, base station is according to line number under transmitting in the above-mentioned downlink data transmission resource distributed by above-mentioned UE According to UE receives downlink data according to distribute above-mentioned downlink data transmission resource.

In another example the parameter of the down control channel resources of M bit notification other UE can be used in above-mentioned notification message, As the RNTI of other UE indicates not including in above-mentioned downlink data transmission resource if the parameter is particular state, such as full 0 The down control channel resources of other UE, otherwise, expression includes.When instruction includes, then base station is distributed in the UE It is not transmitted under the UE in the down control channel resources of other UE terminals included in above-mentioned downlink data transmission resource Row data.It is passed at this point, the assigned above-mentioned downlink data of the UE can be implicitly calculated in the above-mentioned end UE according to the RNTI of notice The down control channel resources of other UE included in defeated resource.If do not included, base station is distributed according to by above-mentioned UE Above-mentioned downlink data transmission resource in transmit downlink data, UE receives downlink according to distribute above-mentioned downlink data transmission resource Data.

Optionally, step 303 may include:

Wherein, above-mentioned specific RNTI can be base station and UE consults in advance, such as: the RNTI of above-mentioned UE or other Specific RNTI.After UE receives above-mentioned downlink data, so that it may be descrambled using the specific RNTI, to obtain above-mentioned downlink Data.

In the embodiment, the safety of data can be improved.

Optionally, each TTI can exist for the reserved down control channel of the UE in the downlink transmission period Resource, if exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, in the downlink It is that the reserved down control channel resources of the UE do not send Downlink Control Information in data transmission resources.

In the embodiment, the downlink control letter for not sending above-mentioned UE in above-mentioned downlink data transmission resource may be implemented Breath, such UE does not need to carry out blind examination in the down control channel resources in the downlink data transmission resource, to save UE's Power consumption.In addition, each TTI can also include the down control channel resources of other UE in above-mentioned downlink transmission period.

Such as: in above-mentioned downlink times section, it is assumed that minimum TTI includes 2 OFDM symbols, is deposited on each TTI In the down control channel resources reserved for UE, but time-domain resource shared by down control channel resources is less than the length of minimum TTI Degree, i.e. time-domain resource shared by down control channel are less than the length of minimum TTI, such as only account for 1 OFDM symbol in the time domain.When When base station needs dispatching downlink data to transmit, then need to send downlink control on the down control channel resources of scheduled above-mentioned UE Information processed.UE needs to carry out blind examination on the down control channel resources reserved on each TTI for oneself, certainly in the downlink of UE It does not need to carry out blind examination in the TTI for including in data transmission resources.When blind examination obtains UE on the down control channel resources of oneself Derived from oneself scheduling information, then downlink data transmission resource is obtained according to the scheduling information, to receive lower line number on the resource According to.Wherein, which can dispatch the part on the same TTI or all resources, can also dispatch on multiple TTI Some or all of frequency domain resource.Base station no longer controls information in the downlink data transmission resource for other UE allocation of downlink. Other UE still need attempts blind examination Downlink Control Information on the down control channel resources reserved for oneself.Assuming that in base station There are two UE altogether, 8 OFDM symbols are shared in the downlink data transmission period, specific example is as shown in Figure 4, wherein 1 He of label Label 2 corresponds to UE1, and label 3 corresponds to UE2.As shown in Figure 4, base station is provided in the down control channel of label 1 and label 2 Source sends the Downlink Control Information of UE1, and sends the lower line number of UE1 in the downlink data transmission resource of label 1 and label 2 According to, and the Downlink Control Information of UE2, and the downlink in label 3 are sent in base station in the down control channel resources of label 3 The downlink data of data transmission resources transmission UE2.By shown in Fig. 4, two TTI of downlink data transmission resource occupation of UE1, this Sample as shown in figure 5, UE1 only needs to carry out blind examination on the down control channel resources shown in 501,502 and 503, without The down control channel resources blind examination shown in 504, but UE2 need down control channel resources 505,506,507 and 508 all It needs to carry out blind examination.

Another example is: in above-mentioned downlink times section, it is assumed that minimum TTI includes 2 OFDM symbols, equal on each TTI The reserved down control channel resources of UE are existed for, but time-domain resource shared by down control channel resources is equal to minimum TTI Length such as only accounts for 2 OFDM symbols in the time domain.When base station needs dispatching downlink data to transmit, then need on scheduled It states and sends Downlink Control Information on the down control channel resources of UE.UE needs the downlink control reserved on each TTI for oneself Blind examination is carried out on channel resource processed, does not need to carry out blind examination in the TTI for including in the downlink data transmission resource of UE certainly.When UE blind examination on the down control channel resources of oneself obtains the scheduling information of oneself, then obtains lower line number according to the scheduling information According to transfer resource, to receive downlink data on the resource.Wherein, which can dispatch the part on the same TTI Or all resources, some or all of frequency domain resource on multiple TTI can also be dispatched.Base station is provided in the downlink data transmission Information no longer is controlled for other UE allocation of downlink in source.Other UE still need in the down control channel resources reserved for oneself Upper trial blind examination Downlink Control Information.Assuming that there are two UE altogether in base station, 8 OFDM symbols are shared in the downlink data transmission period Number, specific example is as shown in Figure 6, wherein label 1 and label 2 correspond to UE1, and label 3 corresponds to UE2.As shown in Figure 6, base It stands and sends the Downlink Control Information of UE1 in the down control channel resources of label 1 and label 2, and in label 1 and label 2 Downlink data transmission resource sends the downlink data of UE1, and sends UE2 in the down control channel resources of label 3 in base station Downlink Control Information, and label 3 downlink data transmission resource send UE2 downlink data.By shown in Fig. 6, UE1 Two TTI of downlink data transmission resource occupation, in this way as shown in fig. 7, UE1 only needs the downlink shown in 701,702 and 703 Blind examination is carried out in control channel resource, without the down control channel resources blind examination shown in 704, but UE2 needs under Row control channel resource 705,706,707 and 708 requires to carry out blind examination.

Optionally, the preceding H TTI in the downlink transmission period exists for the reserved down control channel money of the UE Source, and the down control channel resources reserved for the UE are not present in all TTI in addition to the preceding H TTI, if described When existing for the down control channel resources that the UE is reserved in downlink data transmission resource, in the downlink data transmission resource In be that the reserved down control channel resources of the UE do not send Downlink Control Information, wherein the H is more than or equal to 1 Integer.

In the embodiment, it may be implemented to exist for above-mentioned UE in the preceding H TTI in only above-mentioned downlink transmission period pre- Down control channel resources are not present in other TTI for the down control channel resources stayed, such as: only above-mentioned downlink transfer when The reserved down control channel resources of above-mentioned UE are existed in first TTI in section, are controlled and are believed there is no downlink in other TTI Road resource.The resource of UE blind examination can be reduced, in this way to save UE power consumption.Likewise, being deposited in H TTI before being also possible to only In the down control channel resources reserved for other UE.

Such as: the down control channel money only reserved on first TTI for UE within the downlink data transmission period Source.That is Downlink Control Information is sent on first TTI of the base station in downlink times section.UE is only needed in downlink transfer Blind examination Downlink Control Information is attempted on first TTI in period and on the down control channel resources of oneself.Base station can be with The Downlink Control Information of all or part of UE is sent on first TTI.The resource for not sending Downlink Control Information can be with For sending downlink data.UE needs to attempt blind examination Downlink Control Information on the down control channel resources with oneself no matter Whether base station has sent Downlink Control Information on the resource.Assuming that the UE number for belonging to base station is four, it is assumed that minimum TTI Length is 1 OFDM symbol, and Downlink Control Information and downlink data are transmitted as shown in figure 8, so in base station, what UE1-UE4 was carried out Blind examination, as shown in figure 9, i.e. UE1-UE4 only carries out blind examination in first TTI.

Optionally, the multiple of the reserved down control channel resources of the UE are existed in the downlink transmission period TTI is separated by M TTI, if existing for the reserved down control channel resources of the UE in the downlink data transmission resource When, it is that the reserved down control channel resources of the UE do not send Downlink Control Information in the downlink data transmission resource, Wherein, the M is the positive integer more than or equal to 1.

In the embodiment, it may be implemented to be separated by M TTI transmission Downlink Control Information, such UE only needs to be separated by M TTI carries out a blind examination, to save UE power consumption.It similarly there are as multiple TTI of other UE down control channel resources reserved It is also possible to be separated by M TTI each other.

Such as: in downlink times section, there are be separated by M TTI between two TTI of down control channel resources.It is depositing On down control channel resources TTI, the down control channel resources of each UE, which can be, to be pre-defined.UE is deposited each Blind examination Downlink Control Information is attempted on the down control channel resources of oneself in the TTI of down control channel resources.When pre- When the down control channel resources of definition do not have Downlink Control Information to need to send, which can Transmission for downlink data.The downlink data transmission resource of Downlink Control Information scheduling on some TTI will be comprising next It is a that there are the TTI of down control channel resources.If the downlink data dispatched in the Downlink Control Information of UE on some TTI passes Defeated resource contain it is next there are the TTI of down control channel resources, then there are down control channel moneys next by the UE Blind examination Downlink Control Information is not needed on the TTI in source.Assuming that M is 3, the UE number for belonging to the base station is 2, minimum TTI length For 1 OFDM symbol, then the signal of the Downlink Control Information and downlink data of base station transmission is as shown in Figure 10.Due under UE1 Row data transmission resources occupy all TTI in downlink transmission period, as shown in figure 11, so that UE1 is only needed in downlink control Channel resource 111 processed carries out blind examination, and does not need to carry out blind examination in down control channel resources 112, and UE2 is needed in downlink control Channel resource 113 and 114 processed carries out blind examination, and UE3 needs to carry out blind examination in down control channel resources 115 and 116.

Optionally, step 301 may include:

In the embodiment, it may be implemented to determine above-mentioned down control channel according to the number of the RNTI and TTI of the UE Resource.Specifically can be in advance obtain RNTI and TTI numbered in downlink transmission period it is corresponding with down control channel resources Relationship is certainly not construed as limiting this in the present embodiment, such as: the number of the RNTI of UE and TTI can also be subjected to specific fortune It calculates, above-mentioned down control channel resources etc. are determined according to operation result.To which base station can be determined according to the corresponding relationship State down control channel resources.Similarly, UE can also be determined according to number of the RNTI and TTI of UE in downlink transmission period State down control channel resources.

It should be noted that the embodiment of the plurality of optional of above-mentioned introduction can be combined with each other realization in the present embodiment, It can also be implemented separately.Wherein, each TTI in the implementation and above-mentioned downlink transmission period of notification message is stated herein above Exist for the reserved down control channel resources of the UE implementation be implemented in combination with for, be illustrated, specifically such as Under:

Such as: in the downlink data transmission period, it is assumed that minimum TTI includes 2 OFDM symbols.It is deposited on each TTI In the down control channel resources reserved for UE, and time-domain resource shared by down control channel resources is equal to the length of minimum TTI Degree.When base station needs dispatching downlink data to transmit, then need to send downlink on the down control channel resources of scheduled UE Control information.UE needs to be blind examination downlink control resource on oneself reserved down control channel resources on each TTI.When UE terminal blind examination obtains the scheduling information of oneself, then determines downlink data transmission resource according to the scheduling information, and in the downlink Downlink data is received on data transmission resources.The downlink data transmission resource is part or all resources on the same TTI, The some or all of frequency domain resource being also possible on multiple TTI.Wherein, UE include in downlink data transmission resource be oneself No longer blind examination Downlink Control Information on reserved down control channel resources.Base station above-mentioned downlink data in first TTI passes Defeated resource include be allocation of downlink control information on the reserved down control channel resources of other UE, and in first TTI Above-mentioned UE Downlink Control Information in 1 bit inform the UE base station be other UE reserve down control channel resources on Downlink data cannot be transmitted.Further, it if the down control channel resources that each UE is configured, also needs to notify above-mentioned UE is the location information for the control channel resource that other all or part of UE are reserved.Other UE need under reserved for oneself Blind examination Downlink Control Information is attempted in row control channel resource.Assuming that altogether there are two terminal in base station, in downlink times section 8 OFDM symbols are shared, specific example is as shown in figure 12, and wherein base station is on the down control channel resources of label 1 and label 2 The Downlink Control Information for transmitting UE1, in the lower line number of the downlink data transmission transmitted over resources UE1 of label 1, label 2 and label 3 According to, what needs to be explained here is that, the downlink data transmission resource of label 1 includes the down control channel resources of UE2, thus here The down control channel resources of UE2 can be skipped, because down control channel resources here need to transmit the downlink of UE2 at this time Control information.But the downlink data transmission resource of label 2 includes the down control channel resources of UE2, can not skip UE2 here Down control channel resources because down control channel resources here do not need at this time transmission UE2 Downlink Control Information. The Downlink Control Information of UE2, and the downlink data in label 4 and label 5 are transmitted on the down control channel resources of label 3 The downlink data of UE2 is transmitted on transfer resource.The blind examination of UE1 in this way and UE2 can be as shown in figure 13, and UE1 is controlled in downlink Channel resource 131,132,133 and 134 carries out blind examination, and UE2 carries out blind in down control channel resources 135,136,137 and 138 Inspection.

In the present embodiment, the embodiment of plurality of optional is increased on the basis of embodiment shown in Fig. 2, and is ok It realizes and preferably supports future type type of service abundant.

Based on network structure shown in FIG. 1, the embodiment of the present invention provides another downlink control information transmission method, such as schemes Shown in 14, comprising the following steps:

1401, UE determines in the TTI in downlink transmission period to be the reserved down control channel resources of the UE, In, the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N For the positive integer more than or equal to 1.

1042, blind examination is carried out on the down control channel resources, is provided with obtaining base station in the down control channel The Downlink Control Information transmitted on source using down control channel.

Wherein, the embodiment about above-mentioned down control channel resources and TTI may refer in embodiment shown in Fig. 2 Associated description, details are not described herein again.

Optionally, the down control channel resources can be the exclusive down control channel resources of the UE, the TTI It inside further include the down control channel resources reserved for other UE, wherein control letter in the TTI for the downlink that each UE is reserved Road resource is different；Or

Wherein, in the embodiment, the embodiment about down control channel resources may refer to implementation shown in Fig. 3 Associated description in example, details are not described herein again.

Optionally, the Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, the side Method further includes following steps:

Wherein, in the embodiment, the embodiment about downlink data transmission resource may refer to implementation shown in Fig. 3 Associated description in example, details are not described herein again.

Optionally, the method can also include the following steps:

Wherein, in the embodiment, the embodiment for receiving downlink data about notification message and UE may refer to Fig. 3 institute The associated description in embodiment shown, details are not described herein again.

Optionally, above-mentioned UE receives base station transmission in the downlink data transmission resource of the schedule information schedules The step of downlink data may include:

In the embodiment, after UE receives above-mentioned downlink data, the specific RNTI can also be used to be descrambled, to obtain Obtain above-mentioned downlink data.

Wherein, in the embodiment, about the reality in TTI being above-mentioned UE reserved down control channel resources and UE blind examination The mode of applying may refer to the associated description in embodiment shown in Fig. 3, and details are not described herein again.

Optionally, step 1401 may include:

In the embodiment, it may be implemented to determine above-mentioned down control channel according to the number of the RNTI and TTI of the UE Resource.Specifically can be in advance obtain RNTI and TTI numbered in downlink transmission period it is corresponding with down control channel resources Relationship, wherein the corresponding relationship can be what UE was consulted in advance with base station.Certainly, this is not construed as limiting in the present embodiment, example Such as: the number of the RNTI of UE and TTI can also be subjected to certain operations, above-mentioned down control channel is determined according to operation result Resource etc..To which base station can determine above-mentioned down control channel resources according to the corresponding relationship.

The embodiment of the present invention receives base station and provides in the TTI in downlink transmission period for the down control channel that UE is reserved The Downlink Control Information transmitted on source using down control channel.And above-mentioned TTI includes N number of OFDM symbol, the N be greater than or Person is equal to 1 positive integer.The length that TTI may be implemented in this way is variable, and can also make on the down control channel resources of TTI Downlink Control Information is transmitted with down control channel, so as to preferably support future type type of service abundant.

Referring to Figure 15, a kind of architecture of base station is shown in figure, which includes following module:

Determining module 1501, for determining the down control channel money reserved in the TTI in downlink transmission period for UE Source, wherein the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, The N is the positive integer more than or equal to 1.

First transmission module 1502, for using down control channel to the UE on the down control channel resources Transmit Downlink Control Information.

Optionally, as shown in figure 16, the base station can also include:

Second transmission module 1503, for including the downlink data transmission resource of the UE in the Downlink Control Information When scheduling information, downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules.

Optionally, the base station can also include:

Third transmission module 1504, for sending a notification message to the UE, the notification message for notify it is described under Row data transmission resources whether there is the resource for not sending downlink data, so that the UE is deposited in the downlink data transmission resource When not sending the resource of downlink data, in the downlink data transmission resource in addition to the resource for not sending downlink data Downlink data is received in resource, and makes the UE that the money for not sending downlink data be not present in the downlink data transmission resource When source, downlink data is received in all resources in the downlink data transmission resource.

Optionally, the second transmission module 1503 can be used for providing in the downlink data transmission of the schedule information schedules It is transmitted to the UE by the scrambled downlink data of specific RNTI on source.

Optionally, determining module 1501 can be used for RNTI and the TTI according to the UE in downlink transmission period Number determine in the TTI to be the reserved down control channel resources of the UE.

It should be noted that above-mentioned base station can be with the base station in embodiment shown in Fig. 1-Figure 14, Fig. 1-in the present embodiment Any embodiment of base station can be realized by the above-mentioned base station in the present embodiment in embodiment illustrated in fig. 14, and be reached Identical beneficial effect, details are not described herein again.

Referring to Figure 17, a kind of UE structure is shown, which includes following module in figure:

Determining module 1701 is the reserved downlink control letter of the UE in the TTI in downlink transmission period for determining Road resource, wherein the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM Symbol, the N are the positive integer more than or equal to 1.

Blind examination module 1702, for carrying out blind examination on the down control channel resources, to obtain base station under described The Downlink Control Information transmitted in row control channel resource using down control channel.

Optionally, as shown in figure 18, the UE can also include:

Optionally, the UE can also include:

First receiving module can be used for there is the money for not sending downlink data in the downlink data transmission resource When source, the resource for not sending downlink data is determined, and except the money for not sending downlink data in the downlink data transmission resource The downlink data that base station is sent is received in resource except source；

First receiving module, which can be used for being not present in the downlink data transmission resource, does not send downlink data When resource, the downlink data that base station is sent is received in all resources in the downlink data transmission resource.

Optionally, first receiving module can be used for providing in the downlink data transmission of the schedule information schedules Received on source base station transmission by the scrambled downlink data of specific RNTI.

Optionally, determining module 1701 can be used for true according to the number of RNTI and the TTI in downlink transmission period It is the reserved down control channel resources of the UE in the fixed TTI.

It should be noted that above-mentioned UE can be with the UE in embodiment shown in Fig. 1-Figure 14, Fig. 1-Figure 14 in the present embodiment Any embodiment of UE can be realized by the above-mentioned UE in the present embodiment in illustrated embodiment, and reach identical and have Beneficial effect, details are not described herein again.

Referring to Figure 19, a kind of structure of base station is shown in figure, which includes: processor 1900, transceiver 1910, storage Device 1920, user interface 1930 and bus interface, in which:

Processor 1900 executes following process for reading the program in memory 1920:

Determine the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein the downlink control Channel resource processed is the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, and the N is to be greater than or wait In 1 positive regulation；

It is passed by transceiver 1910 to the UE on the down control channel resources by using down control channel Defeated Downlink Control Information.

Wherein, transceiver 1910, for sending and receiving data under the control of processor 1900.

In Figure 19, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1900 generation of processor The various circuits for the memory that the one or more processors and memory 1920 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1910 can To be multiple element, that is, includes transmitter and receiver, the list for communicating over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 1930, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 1900, which is responsible for management bus architecture and common processing, memory 1920, can store processor 1900 and exists Execute used data when operation.

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, In, the CCE in the down control channel resources is distinguished according to the radio network temporary identifier RNTI of each UE.

Optionally, the Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, processor 1900 can be also used for:

It is transmitted by transceiver 1910 to the UE in the downlink data transmission resource of the schedule information schedules Downlink data.

Optionally, the processor 1900 can be also used for:

It is sent a notification message by transceiver 1910 to the UE, the notification message is for notifying the downlink data to pass Defeated resource whether there is the resource for not sending downlink data, not send so that the UE exists in the downlink data transmission resource When the resource of downlink data, connect in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data Downlink data is received, and makes the UE when the resource for not sending downlink data is not present in the downlink data transmission resource, In Downlink data is received in all resources in the downlink data transmission resource.

Referring to fig. 20, the structure of UE a kind of is shown, which includes: processor 2000, transceiver 2010, memory in figure 2020, user interface 2030 and bus interface, in which:

Processor 2000 executes following process for reading the program in memory 2020:

Determine in the TTI in downlink transmission period to be the reserved down control channel resources of the UE, wherein under described Row control channel resource is the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N be greater than or Person is equal to 1 positive integer；

Blind examination is carried out on the down control channel resources by transceiver 2010, to obtain base station in the downlink control The Downlink Control Information transmitted on channel resource processed using down control channel.

Transceiver 2010, for sending and receiving data under the control of processor 2000.

Wherein, in Figure 20, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 2000 one or more processors represented and memory 2020 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 2010 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 2000 is responsible for management bus architecture and common processing, memory 2020 can store processor 2000 The used data when executing operation.

Processor 2000, which is responsible for management bus architecture and common processing, memory 2020, can store processor 2000 and exists Execute used data when operation.

Optionally, the Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, the place Reason device 2000 can be also used for:

The base station is received in the downlink data transmission resource of the schedule information schedules by transceiver 2010 The downlink data of transmission.

Optionally, processor 2000 can be also used for:

The notification message that the base station is sent is received by transceiver 2010, the notification message is for notifying the downlink Data transmission resources whether there is the resource for not sending downlink data；

The downlink data that base station transmission is received in the downlink data transmission resource of the schedule information schedules, May include:

When the downlink data transmission resource has the resource for not sending downlink data, determination does not send downlink data Resource, and receive base station in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data and send Downlink data；

When the resource for not sending downlink data is not present in the downlink data transmission resource, in the downlink data transmission The downlink data that base station is sent is received in all resources in resource.

Optionally, described to be received in the downlink data transmission resource of the schedule information schedules under the transmission of base station Row data, comprising:

Received in the downlink data transmission resource of the schedule information schedules base station transmission by specific The scrambled downlink data of RNTI.

It optionally, is the reserved down control channel resources of the UE in TTI of the determination in downlink transmission period, May include:

Determine in the TTI to be under the UE reserved according to the number of RNTI and the TTI in downlink transmission period Row control channel resource.

Referring to fig. 21, a kind of structure of Downlink Control Information Transmission system is shown, which includes: in figure

Base station 211, for determining the down control channel resources reserved in the TTI in downlink transmission period for UE212, Wherein, the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, institute Stating N is the positive integer more than or equal to 1；

Base station 211 is also used on the down control channel resources transmit downlink to the UE using down control channel Control information；

UE212 is the reserved down control channel resources of the UE in the TTI for determining；

UE212 is also used to carry out blind examination on the down control channel resources, to obtain base station 211 in the downlink control The Downlink Control Information transmitted on channel resource processed using down control channel.

In the present embodiment, base station 211 and UE212 can be the base station introduced in Fig. 1-embodiment illustrated in fig. 20 and UE, Embodiment can also reach identical technical effect, details are not described herein referring to embodiment shown in Fig. 1-Figure 20.

In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical property, mechanical or other forms.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store The medium of program code.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of downlink control information transmission method characterized by comprising

Determine the down control channel money reserved in the Transmission Time Interval TTI in downlink transmission period for user terminal UE Source, wherein the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of orthogonal frequency Multiplexing technology OFDM symbol, the N are the positive integer more than or equal to 1；

Downlink Control Information is transmitted to the UE using down control channel on the down control channel resources；

The Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, the method also includes:

Downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules；

Wherein, each TTI exists for the reserved down control channel resources of the UE in the downlink transmission period, if described When existing for the down control channel resources that the UE is reserved in downlink data transmission resource, in the downlink data transmission resource In be that the reserved down control channel resources of the UE do not send Downlink Control Information；Or

Preceding H TTI in the downlink transmission period exists for the reserved down control channel resources of the UE, and except before described The down control channel resources reserved for the UE are not present in all TTI except H TTI, if the downlink data transmission It is that the UE is pre- in the downlink data transmission resource when existing for the down control channel resources that the UE is reserved in resource The down control channel resources stayed do not send Downlink Control Information, wherein the H is the integer more than or equal to 1；Or

Multiple TTI that the reserved down control channel resources of the UE are existed in the downlink transmission period are separated by M A TTI, if exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, in the downlink It is that the reserved down control channel resources of the UE do not send Downlink Control Information in data transmission resources, wherein the M is big In or equal to 1 positive integer.

2. the method as described in claim 1, which is characterized in that the down control channel resources are the exclusive downlinks of the UE Control channel resource further includes the down control channel resources reserved for other UE in the TTI, wherein is every in the TTI A UE reserved down control channel resources are different；Or

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, wherein Control channel unit CCE in the down control channel resources is distinguished according to the radio network temporary identifier RNTI of each UE.

3. method according to claim 1 or 2, which is characterized in that the down control channel resources reserved in the TTI are not For downlink data transmission when needing to transmit Downlink Control Information.

4. the method as described in claim 1, which is characterized in that the downlink data transmission resource includes reserving for other UE Down control channel resources, wherein including in the downlink data transmission resource is the reserved down control channel of other UE Forbid sending Downlink Control Information in resource；Or

The downlink data transmission resource does not include the down control channel resources reserved for other UE；Or the downlink data Transfer resource does not include the down control channel resources for needing to send Downlink Control Information reserved for other UE；Or

The downlink data transmission resource includes believing for reserved the controlling no need to send the downlink of Downlink Control Information of other UE Road resource；Or

The downlink data transmission resource does not include the downlink control letter for needing to send Downlink Control Information reserved for other UE Road resource, but including for other UE reserve no need to send the down control channel resources of Downlink Control Information.

5. method as claimed in claim 4, which is characterized in that the method also includes:

It sends a notification message to the UE, the notification message is for notifying the downlink data transmission resource whether there is not send out Send the resource of downlink data so that the UE the downlink data transmission resource exist do not send downlink data resource when, Downlink data is received in resource in the downlink data transmission resource in addition to the resource for not sending downlink data, and is made The UE is provided when the resource for not sending downlink data is not present in the downlink data transmission resource in the downlink data transmission Downlink data is received in all resources in source.

6. the method as described in claim 1, which is characterized in that the downlink data in the schedule information schedules passes Downlink data is transmitted to the UE in defeated resource, comprising:

In the downlink data transmission resource of the schedule information schedules to the UE transmit by specific RNTI it is scrambled under Row data.

7. method according to claim 1 or 2, which is characterized in that the determination is UE in the TTI in downlink transmission period Reserved down control channel resources, comprising:

Determine in the TTI to be the UE reserved according to the number of the RNTI of the UE and the TTI in downlink transmission period Down control channel resources.

8. a kind of downlink control information transmission method characterized by comprising

UE determines to be the reserved down control channel resources of the UE in the TTI in downlink transmission period, wherein the downlink Control channel resource is the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N be greater than or Positive integer equal to 1；

Blind examination is carried out, on the down control channel resources to obtain base station on the down control channel resources under use The Downlink Control Information of row control channel transmission；

The UE receives the lower line number of the base station transmission in the downlink data transmission resource of the schedule information schedules According to；

Wherein, each TTI exists for the reserved down control channel resources of the UE in the downlink transmission period, if described When existing for the down control channel resources that the UE is reserved in downlink data transmission resource, the UE is passed in the downlink data It is the reserved down control channel resources of the UE in defeated resource without blind examination；Or

Preceding H TTI in the downlink transmission period exists for the reserved down control channel resources of the UE, and except before described The down control channel resources reserved for the UE are not present in all TTI except H TTI, if the downlink data transmission When existing for the down control channel resources that the UE is reserved in resource, the UE is institute in the downlink data transmission resource The reserved down control channel resources of UE are stated without blind examination, wherein the H is the integer more than or equal to 1；Or

Multiple TTI that the reserved down control channel resources of the UE are existed in the downlink transmission period are separated by M A TTI, if exist for the down control channel resources that the UE is reserved in the downlink data transmission resource, the UE is in institute State is the reserved down control channel resources of the UE in downlink data transmission resource without blind examination, wherein the M be greater than Or the positive integer equal to 1.

9. method according to claim 8, which is characterized in that the down control channel resources are the exclusive downlinks of the UE Control channel resource further includes the down control channel resources reserved for other UE in the TTI, wherein is every in the TTI A UE reserved down control channel resources are different；Or

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, wherein CCE in the down control channel resources is distinguished according to the RNTI of each UE.

10. method as claimed in claim 8 or 9, which is characterized in that the down control channel resources reserved in the TTI exist It does not need to be used for downlink data transmission when transmission Downlink Control Information.

11. method according to claim 8, which is characterized in that the downlink data transmission resource includes reserving for other UE Down control channel resources, wherein including in the downlink data transmission resource is the reserved downlink control letter of other UE Forbid sending Downlink Control Information in road resource；Or

12. method as claimed in claim 11, which is characterized in that the method also includes:

The notification message that the base station is sent is received, the notification message is for notifying whether the downlink data transmission resource deposits In the resource for not sending downlink data；

The UE receives the downlink data of base station transmission, packet in the downlink data transmission resource of the schedule information schedules It includes:

For the UE when the downlink data transmission resource has the resource for not sending downlink data, determination does not send downlink data Resource, and in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data receive base station hair The downlink data sent；

The UE is passed when the resource for not sending downlink data is not present in the downlink data transmission resource in the downlink data The downlink data that base station is sent is received in all resources in defeated resource.

13. method according to claim 8, which is characterized in that the lower line number of the UE in the schedule information schedules According to the downlink data for receiving base station transmission on transfer resource, comprising:

The UE received in the downlink data transmission resource of the schedule information schedules base station transmission by specific The scrambled downlink data of RNTI.

14. method as claimed in claim 8 or 9, which is characterized in that the UE is determined in the TTI in downlink transmission period The down control channel resources reserved for the UE, comprising:

The UE determines in the TTI to be the UE reserved according to the number of RNTI and the TTI in downlink transmission period Down control channel resources.

15. a kind of base station characterized by comprising

Determining module, for determining the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein The down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, and the N is Positive integer more than or equal to 1；

First transmission module, for transmitting downlink to the UE using down control channel on the down control channel resources Control information；

Second transmission module, for include in the Downlink Control Information UE downlink data transmission resource scheduling information When, downlink data is transmitted to the UE in the downlink data transmission resource of the schedule information schedules；

16. base station as claimed in claim 15, which is characterized in that the down control channel resources are under the UE is exclusive Row control channel resource further includes the down control channel resources reserved for other UE in the TTI, wherein be in the TTI Each UE reserved down control channel resources are different；Or

The down control channel resources are the down control channel resources reserved for UE multiple including the UE, wherein Control channel unit CCE in the down control channel resources is distinguished according to the RNTI of each UE.

17. the base station as described in claim 15 or 16, which is characterized in that the down control channel resources reserved in the TTI When not needing transmission Downlink Control Information for downlink data transmission.

18. base station as claimed in claim 15, which is characterized in that the downlink data transmission resource includes reserving for other UE Down control channel resources, wherein including in the downlink data transmission resource is the reserved downlink control letter of other UE Forbid sending Downlink Control Information in road resource；Or

19. base station as claimed in claim 18, which is characterized in that the base station further include:

Third transmission module, for sending a notification message to the UE, the notification message is for notifying the downlink data to pass Defeated resource whether there is the resource for not sending downlink data, not send so that the UE exists in the downlink data transmission resource When the resource of downlink data, connect in the resource in the downlink data transmission resource in addition to the resource for not sending downlink data Downlink data is received, and makes the UE when the resource for not sending downlink data is not present in the downlink data transmission resource, In Downlink data is received in all resources in the downlink data transmission resource.

20. base station as claimed in claim 15, which is characterized in that second transmission module is used in the scheduling information tune It is transmitted to the UE by the scrambled downlink data of specific RNTI in the downlink data transmission resource of degree.

21. the base station as described in claim 15 or 16, which is characterized in that the determining module is used for the RNTI according to the UE Determine in the TTI to be the reserved down control channel resources of the UE with number of the TTI in downlink transmission period.

22. a kind of UE characterized by comprising

Determining module is the reserved down control channel resources of the UE for determining in the TTI in downlink transmission period, In, the down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N For the positive integer more than or equal to 1；

Blind examination module is believed for carrying out blind examination on the down control channel resources with obtaining base station and controlling in the downlink The Downlink Control Information transmitted in road resource using down control channel；

First receiving module, for include in the Downlink Control Information UE downlink data transmission resource scheduling information When, the downlink data of the base station transmission is received in the downlink data transmission resource of the schedule information schedules；

23. UE as claimed in claim 22, which is characterized in that the down control channel resources are the exclusive downlinks of the UE Control channel resource further includes the down control channel resources reserved for other UE in the TTI, wherein is every in the TTI A UE reserved down control channel resources are different；Or

24. the UE as described in claim 22 or 23, which is characterized in that the down control channel resources reserved in the TTI exist It does not need to be used for downlink data transmission when transmission Downlink Control Information.

25. UE as claimed in claim 22, which is characterized in that the downlink data transmission resource includes reserving for other UE Down control channel resources, wherein including in the downlink data transmission resource is the reserved down control channel of other UE Forbid sending Downlink Control Information in resource；Or

26. UE as claimed in claim 25, which is characterized in that the UE further include:

Second receiving module, the notification message sent for receiving the base station, the notification message is for notifying the downlink Data transmission resources whether there is the resource for not sending downlink data；

First receiving module is used to determine when the downlink data transmission resource has the resource for not sending downlink data The resource of downlink data, and the money in the downlink data transmission resource in addition to the resource for not sending downlink data are not sent The downlink data that base station is sent is received on source；

First receiving module is used for when the resource for not sending downlink data is not present in the downlink data transmission resource, In The downlink data that base station is sent is received in all resources in the downlink data transmission resource.

27. UE as claimed in claim 22, which is characterized in that first receiving module is used in the schedule information schedules The downlink data transmission resource on receive base station transmission by the scrambled downlink data of specific RNTI.

28. the UE as described in claim 22 or 23, which is characterized in that the determining module is used for according to RNTI and the TTI Number in downlink transmission period determines in the TTI to be the reserved down control channel resources of the UE.

29. a kind of Downlink Control Information Transmission system characterized by comprising

Base station, for determining the down control channel resources reserved in the TTI in downlink transmission period for UE, wherein described Down control channel resources are the specific frequency domain resource in the TTI, and the TTI includes N number of OFDM symbol, the N be greater than Or the positive integer equal to 1；

The base station is also used on the down control channel resources transmit downlink control to the UE using down control channel Information processed；

The Downlink Control Information includes the scheduling information of the downlink data transmission resource of the UE, and the base station is also used in institute It states and transmits downlink data to the UE in the downlink data transmission resource of schedule information schedules；

The UE is also used to carry out blind examination on the down control channel resources, is controlled with obtaining the base station in the downlink The Downlink Control Information transmitted on channel resource using down control channel；

The UE is also used to receive the base station transmission in the downlink data transmission resource of the schedule information schedules Downlink data；