CN101909333A

CN101909333A - Method, equipment and method for transmitting PDCCH schedule

Info

Publication number: CN101909333A
Application number: CN2009100861211A
Authority: CN
Inventors: 赵锐
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-06-05
Filing date: 2009-06-05
Publication date: 2010-12-08
Anticipated expiration: 2029-06-05
Also published as: CN101909333B

Abstract

The invention discloses method, equipment and method for transmitting PDCCH schedule. In the method, a base station is used for configuring a member carrier collection for activating and a member carrier collection for PDCCH detection for a terminal; the member carrier collection for activation is a downlink member carrier collection for carrying PDCCH; the member carrier collection for PDCCH detection is a downlink member carrier collection for carrying PDCCH; the base station sends a signal to the terminal to inform the member carrier collection for activating and the member carrier collection for PDCCH detection which are configured at the terminal; and the base station transmits the PDCCH schedule information to the terminal through the PDCCH member carrier in the member carrier collection for PDCCH detection. The invention has the advantage that the base station is the member carrier collection for activating and the member carrier collection for PDCCH detection which are configured at the terminal, thereby flexibly selecting one or a plurality of member carriers from the member carrier collection for PDCCH detection to transmit the PDCCH schedule information.

Description

A kind of method, apparatus and system of PDCCH scheduled transmission

Technical field

The present invention relates to the communications field, relate in particular to a kind of method, apparatus and system of PDCCH scheduled transmission.

Background technology

For the LTE-Advanced system, for supporting the system bandwidth wideer than LTE system, such as 100MHz, need to couple together use by resource with a plurality of LTE carrier waves (claiming member carrier again), dual mode is specifically arranged: (1) carries out polymerization with a plurality of continuous LTE carrier waves, for LTE-A provides bigger transmission bandwidth; (2) a plurality of discontinuous LTE carrier waves are carried out polymerization, for LTE-A provides bigger transmission bandwidth.Fig. 1 has provided the example of discontinuous carrier aggregation.

At present the research of standardization body tendency is, is that design on each carrier wave keeps consistent as far as possible with LTE Release 8 for the common recognition of carrier aggregation system design, thus the terminal of assurance LTE R8 can be on each member carrier operate as normal.

During the standard of current LTE-A is discussed, consider PDCCH (Physical Downlink Control Channel, Physical downlink control channel) flexibility of She Ji complexity, scheduling and the asymmetric state of carrier aggregation of up-downgoing, design to the PDCCH of carrier aggregation system is: each carrier wave independently sends PDCCH, this PDCCH only can dispatch the physical resource of this carrier wave, as shown in Figure 2.PUSCH (the Physical Uplink Shared Channel of the corresponding uplink member carrier of the PDCCH of each downlink member carrier, Physical Uplink Shared Channel), when adopting the design of this kind PDCCH, for the situation of last/downlink member carrier number symmetry and downlink member carrier number greater than all being no problem under the uplink member carrier number situation, but for the situation of uplink member carrier number greater than the downlink member carrier number, because the PDCCH in the downlink member carrier can only dispatch the PUSCH of its corresponding uplink member carrier, just has no idea to dispatch for the uplink member carrier that does not have the downlink member carrier correspondence so.

Prior art provides a kind of improvement project on a last scheme basis, the a plurality of independent PDCCH that use is carried on a certain carrier wave dispatches a plurality of carrier resources, avoid that cause less than the uplink member carrier number can't the dispatching uplink member carrier owing to the downlink member carrier number, as shown in Figure 3, wherein, the PDCCH that is carried on the single carrier wave can be divided into many PDCCH, and each bar PDCCH can only dispatch the resource of a carrier wave.When the carrier resource of needs scheduling has when a lot, the PDCCH that is carried in the prior art on the single carrier wave can't divide abundant PDCCH bar number.

Based on above-mentioned analysis, the applicant thinks that the shortcoming of prior art is: use single carriers carry PDCCH may cause the not enough problem of PDCCH capacity of carrier wave, the downlink member carrier that carries PDCCH on the other hand can not switch fast according to the channel conditions of current member carrier, thereby has limited the flexibility and the reliability of PDCCH transmission.

Summary of the invention

The invention provides a kind of method, apparatus and system of PDCCH scheduled transmission, to realize selecting member's carrier transmission PDCCH flexibly.

The invention provides a kind of method of PDCCH scheduled transmission, be applied to connect the base station of at least one terminal, comprising:

The base station is the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH;

Described base station sends signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects;

PDCCH member carrier in the member carrier collection that described base station is detected by described PDCCH is to described terminal transmission PDCCH schedule information.

Described base station is that the member carrier collection of terminal configuration activation and the member carrier collection of PDCCH detection are specially:

Described base station is according to load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects of member carrier;

The member carrier collection of described activation comprises the member carrier collection that described PDCCH detects, and perhaps equals the member carrier collection that described PDCCH detects.

Described base station is specially to described terminal transmission PDCCH schedule information by the PDCCH member carrier in the member carrier collection of described PDCCH detection:

One or more PDCCH member carriers in the member carrier collection that described base station selected described PDCCH detects are to described terminal transmission PDCCH schedule information.

Described base station sends signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects to be specially:

Described base station sends the control signaling of high-level signaling or L1/L2 to described terminal, carries the member carrier collection of activation of described configuration and the member carrier collection information that PDCCH detects in the described signaling.

Described base station, also comprises after described terminal transmission PDCCH schedule information by the PDCCH member carrier in the member carrier collection of described PDCCH detection:

Described terminal is carried out blind check to the PDCCH of all downlink member carriers in the member carrier collection of described PDCCH detection, obtain schedule information, further according to the PDSCH of the downlink member carrier in the member carrier collection of the described activation of indication demodulation of described schedule information.

Method provided by the invention also comprises:

Described terminal is determined the member carrier collection of ascending control channel PUCCH; Be specially:

Described terminal is with the set of the uplink member carrier of all downlink member carrier correspondences in the member carrier collection of described PDCCH detection, as the member carrier collection of described ascending control channel PUCCH; Perhaps

Described terminal receives the signaling that described base station sends, and determines the member carrier collection of described ascending control channel PUCCH according to described signaling.

The invention provides a kind of base station, comprising:

The set configuration unit is used to the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH;

The signaling transmitting element is used for sending signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects;

The scheduling transmitting element, the PDCCH member carrier that is used for the member carrier collection that detects by described PDCCH is to described terminal transmission PDCCH schedule information.

Described set configuration unit specifically is used for:

Load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects according to member carrier.

Described scheduling transmitting element specifically is used for:

Select one or more PDCCH member carriers in the member carrier collection that described PDCCH detects to described terminal transmission PDCCH schedule information.

Described signaling transmitting element specifically is used for:

Send the control signaling of high-level signaling or L1/L2 to described terminal, carry the member carrier collection of activation of described base station configuration and the member carrier collection information that PDCCH detects in the described signaling.

The invention provides a kind of terminal, comprising:

The unit is known in set, is used to receive the signaling that the base station sends, and knows the member carrier collection of activation of described base station configuration and the member carrier collection that PDCCH detects according to described signaling;

The scheduling acquiring unit, the PDCCH of all downlink member carriers carries out blind check in the member carrier collection that is used for described PDCCH is detected, and obtains the PDCCH schedule information that the described network equipment sends.

Terminal provided by the invention also comprises:

Data capture unit is used for the PDSCH according to the downlink member carrier of the member carrier collection of the described activation of described PDCCH schedule information demodulation.

Terminal provided by the invention also comprises:

The up channel determining unit is used for determining the member carrier collection of ascending control channel PUCCH;

Described up channel determining unit specifically is used for:

With the set of the uplink member carrier of all downlink member carrier correspondences in the member carrier collection of described PDCCH detection, as the member carrier collection of described ascending control channel PUCCH; Perhaps

Receive the signaling that described base station sends, determine the member carrier collection of described ascending control channel PUCCH according to described signaling.

The invention provides a kind of system of PDCCH scheduled transmission, comprise base station, at least one terminal that is connected with described base station, wherein,

Described base station is used to the member carrier collection of described terminal configuration activation and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH; Send signaling to described terminal, notify the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects; PDCCH member carrier in the member carrier collection that detects by described PDCCH is to described terminal transmission PDCCH schedule information;

Described terminal is used to receive the signaling that described base station sends, and knows the member carrier collection of activation of described base station configuration and the member carrier collection that PDCCH detects according to described signaling; PDCCH to all downlink member carriers in the member carrier collection of described PDCCH detection carries out blind check, obtains the PDCCH schedule information that the described network equipment sends.

Described base station also is used for:

Load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects according to member carrier; And/or

Select one or more PDCCH member carriers in the member carrier collection that described PDCCH detects to described terminal transmission PDCCH schedule information; And/or

Compared with prior art, the present invention has the following advantages at least:

Among the present invention, the base station is the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects, PDCCH member carrier in the member carrier collection that detects by PDCCH is to terminal transmission PDCCH schedule information, thereby the base station can be selected suitable single or multiple member carrier transmission PDCCH schedule informations flexibly in the member carrier collection that PDCCH detects, and guarantees the normal transmission of PDCCH schedule information.

Description of drawings

Fig. 1 is a discontinuous carrier aggregation schematic diagram in the prior art;

Fig. 2 is the schematic diagram that each carrier wave of carrier aggregation system in the prior art independently sends PDCCH;

Fig. 3 is the schematic diagram that the single carrier of carrier aggregation system carries many PDCCH in the prior art;

Fig. 4 is the schematic flow sheet of the method for the PDCCH scheduled transmission that provides of one embodiment of the present of invention;

Fig. 5 is the schematic flow sheet of the method for the PDCCH scheduled transmission that provides in the application scenarios that provides of one embodiment of the present of invention;

Fig. 6 is the structural representation of the system of the PDCCH scheduled transmission that provides of one embodiment of the present of invention;

Fig. 7 is the structural representation of the base station that provides of one embodiment of the present of invention;

Fig. 8 is the structural representation of the terminal equipment that provides of one embodiment of the present of invention.

Embodiment

The core concept of the embodiment of the invention is: base station side is to be in the terminal configuration of RRC connection status or to upgrade the member carrier collection S that activates _ActiveMember carrier collection S with the PDCCH detection _PDCCHWherein, the member carrier collection S of activation _ActiveBe the set of the downlink member carrier that possible be used to carry PDSCH, the member carrier collection S that PDCCH detects _PDCCHCarry the set of the downlink member carrier of PDCCH for possible being used to.The S of base station side after terminal sends the above-mentioned configuration of signaling terminal or upgrades _ActiveAnd S _PDCCHTerminal is to all S _PDCCHThe PDCCH of the downlink member carrier in the set carries out blind check, the current S of demodulation _ActiveThe PDSCH of the downlink member carrier in the set obtains schedule information.

Embodiments of the invention provide a kind of method of PDCCH scheduled transmission, are applied to connect the base station of at least one terminal, as shown in Figure 4, may further comprise the steps:

Step s401, the base station is the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH.

Described base station is according to load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects of member carrier; Wherein

Step s402, described base station sends signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects;

Concrete, described base station sends signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects to be:

Step s403, the PDCCH member carrier in the member carrier collection that described base station is detected by described PDCCH is to described terminal transmission PDCCH schedule information.

One or more PDCCH member carriers in the member carrier collection that described base station selected described PDCCH detects are to described terminal transmission PDCCH schedule information, and the foundation of described base station selected described PDCCH member carrier is the channel conditions or the load state of described PDCCH member carrier.

Described terminal also is used for determining the member carrier collection of ascending control channel PUCCH; Be specially:

By the method that adopts embodiments of the invention to provide, the base station is the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects, PDCCH member carrier in the member carrier collection that detects by PDCCH is to terminal transmission PDCCH schedule information, thereby the base station can be selected suitable single or multiple member carrier transmission PDCCH schedule informations flexibly in the member carrier collection that PDCCH detects, and guarantees the normal transmission of PDCCH schedule information.

Introduce the method that embodiments of the invention provide in detail below in conjunction with concrete application scenarios, as shown in Figure 5, may further comprise the steps:

Step s501, the base station is the member carrier collection S that terminal configuration activates _ActiveMember carrier collection S with the PDCCH detection _PDCCH

Concrete, the base station is according to load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects of member carrier.The base station is the set of two downlink member carriers of terminal configuration of being in RRC (radio resource control, Radio Resource Control) connection status: the member carrier collection S of activation _ActiveMember carrier collection S with the PDCCH detection _PDCCH, wherein

S wherein _AllExpression be the set of all downlink member carrier.

The base station is according to the business demand of terminal and the load state and the channel conditions of member carrier, select member's carriers carry PDSCH (Physical Downlink Control Channel, Physical Downlink Shared Channel) sends to terminal, possible being used to carried the member carrier collection S of set for activating of the carrier wave of PDSCH _ActiveThe member carrier collection S that the base station is being activated _ActiveIn the best single or multiple member carriers of selective channel situation as the carrier wave that may carry PDSCH, the set that is used to carry the carrier wave of PDSCH is the member carrier collection S that PDCCH detects _PDCCH

For the member carrier collection S that activates _ActiveMember carrier collection S with the PDCCH detection _PDCCHBe described in detail as follows:

The member carrier collection S that activates _Active, be the set that possible be used to carry the downlink member carrier of PDSCH; Accordingly, can be for the PDSCH of terminal at S _ActiveTransmitting in one or more member carrier arbitrarily in the set.

The member carrier collection S that PDCCH detects _PDCCH, be the set that the downlink member carrier of PDCCH is carried in possible being used to; Accordingly, can be for the PDCCH information of terminal at S _PDCCHTransmitting in one or more member carrier arbitrarily of set.

Below in conjunction with the member carrier collection S of example explanation base station for activation _ActiveMember carrier collection S with the PDCCH detection _PDCCHConfiguration.The base station is the member carrier collection S that terminal configuration activates _ActiveMember carrier collection S with the PDCCH detection _PDCCHFoundation be the business demand of terminal and the load state and the channel conditions of member carrier, 5 member carriers are for example arranged in the system, according to the business demand of terminal and the load state and the channel conditions of member carrier, base station selectedly on 4 member carriers, send data to terminal, with these 4 carrier waves as the member carrier collection S that activates _ActiveIn member carrier, select channel conditions in these 4 member carriers preferably or the member carrier collection S that detects as PDCCH of two best member carriers of load state _PDCCHIn member carrier.Wherein, as the member carrier collection S that activates _ActiveIn 4 member carriers have load state and the channel conditions that is better than the 5th member carrier usually.

Step s502, the base station sends signaling to terminal, the member carrier collection S of the activation that the notice terminal base station has been configured _ActiveMember carrier collection S with the PDCCH detection _PDCCH

The base station is a high-level signaling to the signaling that terminal sends, for example RRC signaling, perhaps the control signaling of L1/L2; These two kinds of signalings can be for there being the signaling of affirmation mechanism.

The member carrier collection S of activation is carried in the base station in the signaling that terminal sends _ActiveMember carrier collection S with the PDCCH detection _PDCCHIndication information, the member carrier collection S of the activation that has been configured of notice terminal _ActiveMember carrier collection S with the PDCCH detection _PDCCH

For example, the base station sends the RRC signaling to terminal, the member carrier collection S of the activation that the notice terminal has been configured _ActiveMember carrier collection S with the PDCCH detection _PDCCH, concrete, can carry identification information in the RRC signaling, for example the member carrier collection S of Ji Huoing _ActiveIn member carrier can carry identification information a, each member carrier can be designated a1, a2, a3 and a4 etc. respectively; The member carrier collection S that PDCCH detects _PDCCHIn member carrier can carry identification information p, the member carrier collection S that PDCCH detects _PDCCHIn each member carrier can be designated p1, p2 etc. respectively.After terminal receives the RRC signaling, can obtain the carrier set at each carrier wave place according to the identification information of each carrier wave in the RRC signaling.

Wherein, the identification information of each carrier wave that carries in the RRC signaling can exist with the form of tabulation, and is as shown in table 1:

The set identification of each carrier wave of table 1

Carrier number	Set identification
		1	a1、p1
2	a2、p2
		3	a3
4	a4

Because carrier wave 1 has a1, p1 sign, so terminal equipment can judge in view of the above that this carrier wave belongs to the member carrier collection S of activation simultaneously _ActiveMember carrier collection S with the PDCCH detection _PDCCH, carrier wave 2 is identical with carrier wave 1; For carrier wave 3, only have singleton sign a3, terminal equipment can judge in view of the above that this carrier wave belongs to the member carrier collection S of activation _Active, carrier wave 4 is identical with carrier wave 3.

Should be with in the scene, with the control signaling of RRC signaling or L1/L2 as the mode of communicating by letter between base station and the terminal, certainly, in the method for the PDCCH scheduled transmission that embodiments of the invention provide, can also adopt other various signalings to communicate between base station and the terminal, for example, can dispose privately owned signaling between base station and the terminal, arrange the encryption and the manner of decryption of this privately owned signaling in base station and end side, the base station is to the member carrier collection S of the activation of configuration _ActiveMember carrier collection S with the PDCCH detection _PDCCHIn the information of each carrier wave encrypt, the information of carrying after the encryption by privately owned signaling sends to terminal then; After terminal received privately owned signaling, manner of decryption according to a preconcerted arrangement was decrypted this privately owned signaling, obtains the member carrier collection S of the activation of wherein carrying _ActiveMember carrier collection S with the PDCCH detection _PDCCHIn the information of each carrier wave.

Step s503, terminal receives the signaling that the base station sends, and knows the member carrier collection S of activation _ActiveMember carrier collection S with the PDCCH detection _PDCCH

Terminal receives the signaling that the base station sends, according to the member carrier collection S that activates in this signaling _ActiveMember carrier collection S with the PDCCH detection _PDCCHIn indication information obtain the member carrier collection S of activation _ActiveMember carrier collection S with the PDCCH detection _PDCCHPreserve the member carrier collection S that activates _ActiveIn member carrier, and the member carrier collection S that detects of PDCCH _PDCCHIn member carrier, specifically can be kept in the tabulation, as shown in table 2.

The corresponding relation of the carrier wave that comprises in table 2 set and the set

Should be with in the scene, terminal is for the member carrier collection S that activates _ActiveIn member carrier, and the member carrier collection S that detects of PDCCH _PDCCHIn member carrier, can but the tabulation preserving type that should provide with scene is provided, for example terminal can also be provided with the member carrier collection S that memory space is stored activation respectively specially in the internal memory of terminal _ActiveAnd the member carrier collection S of PDCCH detection _PDCCH, be not described in detail in this.

Should be with in the scene, terminal is obtained the member carrier collection S of activation after receiving the signaling of base station transmission from this signaling _ActiveMember carrier collection S with the PDCCH detection _PDCCHInformation before, also comprise the identification signaling information of carrying.If the base station is privately owned signaling to the signaling that terminal sends, described in step s502, encrypt privately owned signaling the base station, after then terminal receives this privately owned signaling, at first needs this privately owned signaling is decrypted, and obtains the member carrier collection S of activation then _ActiveMember carrier collection S with the PDCCH detection _PDCCHInformation; So, after terminal receives the signaling of base station transmission, at first, obtain the member carrier collection S of the activation of carrying in this signaling then according to handling this signaling with the mode of base station agreement in advance _ActiveMember carrier collection S with the PDCCH detection _PDCCHInformation.

Step s504, the member carrier collection S that terminal monitoring PDCCH detects _PDCCHIn member carrier, the control information of obtaining the MBMS transfer of data is further obtained the data that the base station sends according to the control information of obtaining.

Terminal is known the member carrier collection S that PDCCH detects _PDCCHAfter, the PDCCH of all member carriers carryings in this set is carried out blind check, obtain the resource information of carrying among the PDCCH, comprise resource informations such as the control information of MBMS transfer of data and schedule information.Further, terminal is monitored the member carrier collection S that activates according to the resource information of carrying among the PDCCH _ActiveIn member carrier, obtain the resource information of carrying in this member carrier, comprise the data that the base station sends to terminal, these data form with coded combination in carrier wave is preserved.The decoded information of terminal basis from the resource information that PDCCH obtains, the member carrier collection S that decoding activates _ActiveIn member carrier carry through the data of coded combination, obtain the data that the base station sends.

In the above-mentioned application scenarios that embodiments of the invention provide, for the LTE-A system, owing to uply also have a plurality of member carriers, consider the restriction of terminal capability, might terminal can not be supported in the up control information of transmission in a plurality of uplink member carrier so, be equivalent to provide the constraints of the uplink member carrier of an ascending control channel PUCCH transmission like this.Terminal is determined the S set of up PUCCH _PUCCHMethod mainly contain following two kinds:

(1), terminal is according to the pair relationhip of the sub-district of last/descending carrier indication, with the S of corresponding downstream _PDCCHThe set of the uplink member carrier of the downlink member carrier correspondence in the set is as the S set of up PUCCH channel _PUCCH

(2), terminal determines the set of corresponding uplink member carrier by the signaling that receives the base station and send, for example:

A, terminal receive the high-level signaling that the base station sends, and for example the RRC signaling is carried the indication information of the set of uplink member carrier in this signaling; Wherein, high-level signaling also can adopt the RRC signaling of affirmation mechanism;

B, terminal receive the control signaling of the L1/L2 of base station transmission, carry the indication information of the set of uplink member carrier in this signaling; The control signaling of L1/L2 also can adopt the L1/L2 control signaling of affirmation mechanism.

Embodiments of the invention provide a kind of system of PDCCH scheduled transmission, as shown in Figure 6, comprise base station 11, at least one terminal 12 that is connected with described base station 11, wherein,

Described base station 11 is used to the member carrier collection of described terminal 12 allocation activations and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH; Send signalings to described terminal 12, notify the member carrier collection of activation of described terminal 12 described configurations and the member carrier collection that PDCCH detects; Transmit the PDCCH schedule informations by the PDCCH member carrier in the member carrier collection of described PDCCH detection to described terminal 12;

Concrete, base station 11 is according to load state and the member carrier collection of channel conditions allocation activation and the member carrier collection that PDCCH detects of member carrier.The set that base station 11 disposes two downlink member carriers for the terminal 12 that is in the RRC connection status: the member carrier collection S of activation _ActiveMember carrier collection S with the PDCCH detection _PDCCH, wherein S wherein _AllExpression be the set of all downlink member carrier.Base station 11 selects member's carriers carry PDSCH to send to terminal 12 according to the business demand of terminal 12 and the load state and the channel conditions of member carrier, possible being used to is carried the member carrier collection S of set for activating of the carrier wave of PDSCH _ActiveThe member carrier collection S that base station 11 is being activated _ActiveIn the best single or multiple member carriers of selective channel situation as the carrier wave that may carry PDSCH, the set that is used to carry the carrier wave of PDSCH is the member carrier collection S that PDCCH detects _PDCCH

For example, base station 11 sends the RRC signaling to terminal 12, the member carrier collection S of the activation that notice terminal 12 has been configured _ActiveMember carrier collection S with the PDCCH detection _PDCCH, concrete, can carry identification information in the RRC signaling, for example the member carrier collection S of Ji Huoing _ActiveIn member carrier can carry identification information a, each member carrier can be designated a1, a2, a3 and a4 etc. respectively; The member carrier collection S that PDCCH detects _PDCCHIn member carrier can carry identification information p, the member carrier collection S that PDCCH detects _PDCCHIn each member carrier can be designated p1, p2 etc. respectively.After terminal 12 receives the RRC signaling, can obtain the carrier set at each carrier wave place according to the identification information of each carrier wave in the RRC signaling.

Described terminal 12 is used to receive the signaling that described base station 11 sends, and knows the member carrier collection of the activation that described base station 11 disposes and the member carrier collection that PDCCH detects according to described signaling; PDCCH to all downlink member carriers in the member carrier collection of described PDCCH detection carries out blind check, obtains the PDCCH schedule information that the described network equipment sends.

Described base station 11 also is used for:

In the method for the PDCCH scheduled transmission that embodiments of the invention provide, can adopt between base station and the terminal but be not limited to the control signaling of above-mentioned high-level signaling or L1/L2, can also adopt other various signalings to communicate, for example, can dispose privately owned signaling between base station and the terminal, arrange the encryption and the manner of decryption of this privately owned signaling in base station and end side, the base station is to the member carrier collection S of the activation of configuration _ActiveMember carrier collection S with the PDCCH detection _PDCCHIn the information of each carrier wave encrypt, the information of carrying after the encryption by privately owned signaling sends to terminal then; After terminal received privately owned signaling, manner of decryption according to a preconcerted arrangement was decrypted this privately owned signaling, obtains the member carrier collection S of the activation of wherein carrying _ActiveMember carrier collection S with the PDCCH detection _PDCCHIn the information of each carrier wave.

Embodiments of the invention also provide a kind of base station, are connected with at least one terminal, and as shown in Figure 7, described base station comprises:

Set configuration unit 111 is used to the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects; The member carrier collection of described activation is the downlink member carrier set that is used to carry PDSCH; The member carrier collection that described PDCCH detects is the downlink member carrier set that is used to carry PDCCH.

Signaling transmitting element 112 is used for sending signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects;

Scheduling transmitting element 113, the PDCCH member carrier that is used for the member carrier collection that detects by described PDCCH is to described terminal transmission PDCCH schedule information.

Described set configuration unit 111 specifically is used for:

Described scheduling transmitting element 113 specifically is used for:

Described signaling transmitting element 112 specifically is used for:

Embodiments of the invention also provide a kind of terminal, as shown in Figure 8, comprising:

Unit 121 is known in set, is used to receive the signaling that the base station sends, and knows the member carrier collection of activation of described base station configuration and the member carrier collection that PDCCH detects according to described signaling;

Scheduling acquiring unit 122, the PDCCH of all downlink member carriers carries out blind check in the member carrier collection that is used for described PDCCH is detected, and obtains the PDCCH schedule information that the described network equipment sends.

The terminal that embodiments of the invention provide also comprises:

Data capture unit 123 is used for the PDSCH according to the downlink member carrier of the member carrier collection of the described activation of described PDCCH schedule information demodulation.

The terminal that embodiments of the invention provide also comprises:

Up channel determining unit 124 is used for determining the member carrier collection of ascending control channel PUCCH;

Described up channel determining unit 124 specifically is used for:

By system and the equipment that adopts embodiments of the invention to provide, the base station is the member carrier collection of terminal configuration activation and the member carrier collection that PDCCH detects, PDCCH member carrier in the member carrier collection that detects by PDCCH is to terminal transmission PDCCH schedule information, thereby the base station can be selected suitable single or multiple member carrier transmission PDCCH schedule informations flexibly in the member carrier collection that PDCCH detects, and guarantees the normal transmission of PDCCH schedule information.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

1. the method for a PDCCH scheduled transmission is applied to connect the base station of at least one terminal, it is characterized in that, comprising:

2. the method for claim 1 is characterized in that, described base station is that the member carrier collection of terminal configuration activation and the member carrier collection of PDCCH detection are specially:

The member carrier collection of described activation comprises the member carrier collection that described PDCCH detects, and perhaps the member carrier collection of described activation equals the member carrier collection that described PDCCH detects.

3. the method for claim 1 is characterized in that, described base station is specially to described terminal transmission PDCCH schedule information by the PDCCH member carrier in the member carrier collection of described PDCCH detection:

4. the method for claim 1 is characterized in that, described base station sends signaling to described terminal, notifies the member carrier collection of activation of the described configuration of described terminal and the member carrier collection that PDCCH detects to be specially:

5. the method for claim 1 is characterized in that, described base station, also comprises after described terminal transmission PDCCH schedule information by the PDCCH member carrier in the member carrier collection of described PDCCH detection:

6. method as claimed in claim 5 is characterized in that, also comprises:

7. a base station is characterized in that, comprising:

8. base station as claimed in claim 7 is characterized in that, described set configuration unit specifically is used for:

9. base station as claimed in claim 7 is characterized in that, described scheduling transmitting element specifically is used for:

10. base station as claimed in claim 7 is characterized in that, described signaling transmitting element specifically is used for:

11. a terminal is characterized in that, comprising:

12. terminal as claimed in claim 11 is characterized in that, also comprises:

13. terminal as claimed in claim 11 is characterized in that, also comprises:

Described up channel determining unit specifically is used for:

14. the system of a PDCCH scheduled transmission is characterized in that, comprises base station, at least one terminal that is connected with described base station, wherein,

15. system as claimed in claim 14 is characterized in that, described base station also is used for: