CN103457710A

CN103457710A - Method, device and system for enabling enhancement mode physical downlink control channel

Info

Publication number: CN103457710A
Application number: CN201310168977XA
Authority: CN
Inventors: 曾清海; 张宏平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-06-01
Filing date: 2013-05-09
Publication date: 2013-12-18
Anticipated expiration: 2033-05-09
Also published as: WO2013178043A1; CN103457710B

Abstract

The embodiment of the invention discloses a method, device and system for enabling an enhancement mode physical downlink control channel, and relates to the field of communication. The method, device and system are applied to allocation and usage of physical downlink control channels, improve the capacity of the physical downlink control channels, and reduce the number of times of blind tests of UE. The method comprises the following steps: a base station allocates the enhancement mode physical downlink control channel (E-PDCCH) to a serving cell of the user equipment; the base station sends resource allocation information of the E-PDCCH to the user equipment so that the user equipment can monitor the E-PDCCH according to the resource allocation information, wherein the serving cell is at least one of the following cells: a main serving cell or an auxiliary serving cell or a serving cell corresponding to a novel carrier wave type.

Description

A kind of enabled method of enhancement mode Physical Downlink Control Channel, equipment and system

Technical field

The present invention relates to the communications field, relate in particular to a kind of enabled method, equipment and system of Physical Downlink Control Channel.

Background technology

Long Term Evolution (Long Term Evolution is called for short LTE) system is the evolution of 3G, and it improves and strengthened the aerial access technology of 3G.Can provide the peak rate of descending 100Mbit/s and up 50Mbit/s under the 20MHz spectral bandwidth.In improved senior Long Term Evolution LTE-A system to it, introduce carrier aggregation (Carrier Aggregation is called for short CA), in descending and up difference, can support 5 component carrier (component carrier, or be called member carrier), to improve the throughput of system.

At multi-input/output antenna (Multiple-Input Multiple-Out-put, be called for short MIMO), coordinate multiple spot sending/receiving (coordinated multiple points, be called for short COMP), expansion carrier wave (Extension Carrier, be called for short EC), heterogeneous network carrier aggregation (Heterogeneous net, be called for short Hetnet CA) etc. scene, exist the PDCCH capacity limited, block, the problems such as interference, by increasing enhancement mode downlink physical control channel (Enhanced Physical downlink control channel, be called for short E-PDCCH) can address the above problem.Above-mentioned EC also can be called new carrier type (New Carrier Type, be called for short NCT), it can be associated with existing PCell or SCell, is non-backward compatible carrier waves, and the descending timing of this CA Serving cell associated with it can be synchronizeed or be asynchronous.

But prior art is not also discussed base station and how to be used above-mentioned E-PDCCH.

Summary of the invention

Embodiments of the invention provide a kind of enabled method, equipment and system of Physical Downlink Control Channel, and base station, by the resource allocation information of E-PDCCH notice UE, makes UE monitor described E-PDCCH according to described resource allocation information.

To achieve these goals, one aspect of the present invention provides a kind of enabled method of Physical Downlink Control Channel, comprising:

Base station is that the Serving cell configuration of serving subscriber equipment strengthens Physical Downlink Control Channel E-PDCCH;

Described base station sends the resource allocation information of described E-PDCCH to described subscriber equipment, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information;

Wherein, described Serving cell is following at least one community:

Main Serving cell, auxiliary serving cell or new Serving cell corresponding to carrier type.

The present invention provides a kind of enabled method of Physical Downlink Control Channel on the other hand, comprising:

The resource allocation information of the enhancing Physical Downlink Control Channel E-PDCCH that the Serving cell that subscriber equipment reception base station is described subscriber equipment configures;

Described subscriber equipment is monitored described E-PDCCH according to described resource allocation information;

Wherein, described Serving cell is following at least one community:

The present invention provides a kind of base station on the other hand, comprising:

Dispensing unit, be used to the Serving cell configuration of serving subscriber equipment to strengthen Physical Downlink Control Channel E-PDCCH;

Transmitting element, for the resource allocation information of described E-PDCCH from the configuration of described dispensing unit to described subscriber equipment that send, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information;

Wherein, described Serving cell is following at least one community:

The present invention provides a kind of subscriber equipment on the other hand, comprising:

Receiving element, for receiving the resource allocation information of the enhancing Physical Downlink Control Channel E-PDCCH that Serving cell that base station is described subscriber equipment configures;

Monitoring unit, monitor described E-PDCCH for the described resource allocation information received according to described receiving element;

Wherein, described Serving cell is following at least one community:

The enabled method of a kind of Physical Downlink Control Channel that the embodiment of the present invention provides, base station and subscriber equipment.By base station, by E-PDCCH resource allocation information notice UE, make UE monitor described E-PDCCH according to described resource allocation information.

The accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The enabled method flow chart of a kind of Physical Downlink Control Channel that Fig. 1 provides for the embodiment of the present invention;

The enabled method flow chart of the another kind of Physical Downlink Control Channel that Fig. 2 provides for the embodiment of the present invention;

Fig. 3 is a kind of subframe ideograph;

Fig. 4 is E-PDCCH distribution diagram when under a kind of Hetnet scene, main Serving cell carries out across carrier dispatching to auxiliary serving cell;

Fig. 5 is E-PDCCH distribution diagram when under a kind of Hetnet scene, main Serving cell does not carry out across carrier dispatching to auxiliary serving cell;

The structure drawing of device of a kind of base station that Fig. 6 provides for the embodiment of the present invention;

The structure drawing of device of the another kind of base station that Fig. 7 provides for the embodiment of the present invention;

The structure drawing of device of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention;

The system diagram enabled of a kind of Physical Downlink Control Channel that Fig. 9 provides for the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.

The embodiment of the present invention describes from base station side and UE side respectively, and the two cooperation embodiment is described simultaneously, but this does not also mean that the two must coordinate enforcement, in fact, when UE and base station separate while implementing, it has also solved the problem existed on UE side, base station side respectively, when just the two is combined with, can obtain better technique effect.

Referring to Fig. 1, be the enabled method schematic flow sheet of base station side E-PDCCH, as shown in the figure, can comprise the following steps:

S101: base station is that the Serving cell configuration of serving subscriber equipment strengthens Physical Downlink Control Channel E-PDCCH, and wherein, described Serving cell is following at least one community: main Serving cell, auxiliary serving cell or new Serving cell corresponding to carrier type.

Exemplary, the present embodiment can also comprise:

Base station sends E-PDCCH serving on the Serving cell of subscriber equipment to described subscriber equipment, can comprise:

When described base station judges that described subscriber equipment is in the discontinuous reception DRX activity time, and time corresponding to described Serving cell while adjusting timer TAT operation, described base station sends described E-PDCCH to described subscriber equipment on described Serving cell; Perhaps,

When described base station judges that described subscriber equipment is in the DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, described base station, at described main Serving cell, reaches on the described Serving cell that described main TAG is corresponding and sends described E-PDCCH to described subscriber equipment; Perhaps,

When described base station judges that described subscriber equipment is in the DRX activity time, on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station, to described subscriber equipment, send described E-PDCCH;

Wherein, the described Serving cell that described main TAG is corresponding comprises described main Serving cell or described auxiliary serving cell or Serving cell corresponding to described new carrier type;

The described Serving cell that described auxiliary TAG is corresponding comprises described auxiliary serving cell or Serving cell corresponding to described new carrier type.

Wherein, main Serving cell (PCell) refers to that subscriber equipment (User Equipment is called for short UE) carries out random access from the idle condition of Radio Resource connection control and enters the Serving cell that Radio Resource connects the connection status place of control; Auxiliary serving cell (SCell) refers to the Serving cell that base station is UE configuration at Radio Resource control connection state by wireless resource control connection reconfiguration message, SCell can for UE descending/the upstream data sending/receiving provides more Radio Resource; Community corresponding to new carrier type can not be as individual cell,

The main purpose of introducing new carrier type is in order to reduce the control signal expense, at 3GPPLTE version 11 (Rel-11), intends supporting the new carrier type of two classes, and wherein a class does not provide synchronizing signal, descending timing and associated carrier synchronization; One class provides synchronizing signal and community specific reference signal, descending timing without with associated carrier synchronization.

Each UE configures 1 PCell and 0～4 SCell at the most, for UE economize on electricity purpose, LTE-ACA supports discontinuous reception (Discontinuous Reference, be called for short DRX) function and SCell activation/deactivation (activation/deactivation), PCell can not be deactivated.UE does not monitor Physical Downlink Control Channel (Physical downlink control channel on the SCell of deexcitation, be called for short PDCCH), not at Physical Downlink Shared Channel (Physical downlink shared channel, be called for short PDSCH) downlink data receiving, transmitting channel state information (Channel State Information not, be called for short CSI)/detection reference signal (Sounding Reference Signal, be called for short SRS), capable physically shared channel (Physical uplink shared channel, be called for short PUSCH) the transmission upstream data.When having configured DRX, the SCell of PCell and all configurations activation follows common DRX, and UE is identical in activity time (active time) rule of PCell and all activated SCell.When having configured DRX, the SCell of PCell and all configurations activation follows common DRX, and UE is identical in activity time (active time) rule of PCell and all activated SCell.The resource information of distributing for being carried as UE at PDCCH, each UE monitors the PDCCH distributed for self, and Gains resources information, running time-frequency resource transmitting data that can be indicated in this resource information.Scheduling for UE on certain Serving cell of institute's polymerization, LTE-A CA supports non-across carrier dispatching (non cross carrier scheduling) with across carrier dispatching (cross carrier scheduling) scheduling mode.For non-, across carrier scheduling mode, UE monitors PDCCH between the active stage of PCell and SCell on this Serving cell.For across carrier scheduling mode, SCell can be configured to by PCell or other SCell scheduling; PCell only can be by oneself scheduling, can not be by across carrier dispatching.The Serving cell that sends PDCCH is called dispatching cell, and it is with what indicate current scheduling that the PDCCH on dispatching cell comprises carrier wave indication territory for which Serving cell.UE monitors PDCCH during the active of PCell and SCell time on scheduling carrier wave.

LTE-A version l0 (Rel-l0) is in up support frequency band intercarrier polymerization (intra-band CA), and each Serving cell can be used identical timing advance (TA:timing advance) value up.UE safeguards a time adjustment timer (TAT:time alignment timer), when this timer operation, think UE in each Serving cell and base station all in the uplink synchronous state, can normally carry out uplink and downlink data sending/receiving in the DRX activity time.Version 11 (Rel-11) is at up carrier aggregation between frequency band (Inter-band CA) and the frequency selectivity repeater (Frequency selective repeater) also supported, each Serving cell can be used different TA values up, uses the Serving cell of identical TA value to belong to same TA group (TAG:TAgroup); UE is that each TAG safeguards a TAT, when this TAT operation, think UE in each Serving cell of this TAG and base station all in the uplink synchronous state, can normally carry out uplink and downlink data sending/receiving in the DRX activity time.For the TAG that does not comprise PCell, if not operation of TAT, UE can carry out normal downlink data reception at each Serving cell of this TAG, but can not carry out the normal upstream data transmission.The corresponding TAT of PCell or SCell refers to the corresponding TAT of TAG at PCell or SCell place.

Exemplary, described base station is the Serving cell configuration E-PDCCH that serves subscriber equipment, can comprise:

When having configured across carrier dispatching, described base station configures described E-PDCCH on described main Serving cell or dispatching cell.

Scheduling for UE on certain Serving cell of institute's polymerization, LTE-A CA supports non-across carrier dispatching (non cross carrier scheduling) with across carrier dispatching (cross carrier scheduling) scheduling mode.For non-, across carrier scheduling mode, UE monitors PDCCH between the active stage of PCell and SCell on this Serving cell.For across carrier scheduling mode, SCell can be configured to by PCell or other SCell scheduling; PCell only can be by oneself scheduling, can not be by across carrier dispatching.The Serving cell sent control signaling is called dispatching cell (Scheduling cell), and which Serving cell dispatching cell is to UE indication current scheduling.When having configured across carrier dispatching, base station can configure E-PDCCH on PCell or dispatching cell.

S102: described base station sends the resource allocation information of described E-PDCCH to described subscriber equipment, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information.

Exemplary, described base station sends the resource allocation information of described E-PDCCH to described subscriber equipment, comprising:

Described base station sends the information of the described Serving cell that has configured described E-PDCCH to described subscriber equipment, this information can comprise following at least one;

Auxiliary serving cell index or the Physical Cell Identifier of described auxiliary serving cell; Or,

Auxiliary serving cell index or the Physical Cell Identifier of the Serving cell that described new carrier type is corresponding.

Exemplary, described configuration information comprises at least one of following information:

Described E-PDCCH resource is distributed type, as centralized (localized) or distributed (distributed) virtual resource blocks (Virtual Resource Block, be called for short VRB) distribute type, resource block number information etc., for supporting 3 kinds of Physical Downlink Shared Channel resources at present, 3GPP agreement TS36.213 distributes one of type: type 0, type l, type 2.Centralized resources distributes and refers to the resource distribution mode that VRB is continuous; Distributed resource allocation refers to the discrete resource distribution mode of VRB.Type 0 is the centralized resources method of salary distribution, uses the form of bitmap (bitmap) to indicate which Resource Block group (Resource Block Group is called for short RBG) to be assigned to UE, and RBG represents one group of continuous VRB.Type l is the centralized resources method of salary distribution, and from one group of RBG subset, indication some VRB wherein distribute to UE.One group of type 2 indication continuous or discrete VRB distribute to UE.

Corresponding Resource Block (RB) distributes, and refers to the resource block number information of according to respective resources, distributing type to distribute);

The subframe pattern, be used to indicate base station and which subframe send E-PDCCH in;

The resource original position of E-PDCCH, the starting position of E-PDCCH symbol;

Demodulated reference signal (DMRS) configuration, be used to indicate the reference signal that demodulation E-PDCCH is used;

Physical Uplink Control Channel (PUCCH) feedback configuration information, be used to indicate the resource that uplink hybrid automatic repeat request (Hybrid Automatic Repeat Request is called for short HARQ) feeds back;

E-PDCCH and PDSCH resource multiplex mode, refer to that E-PDCCH and PDSCH are according to the mode of frequency division multiplexing FDM, time division multiplexing tdm or code division multiplexing CDM in subframe;

The resource mapping method of E-PDCCH and antenna port.

Exemplary, base station specifically comprises the method for the configuration information of described E-PDCCH notice UE, (Radio Resource Control is controlled by Radio Resource in described base station, be called for short RRC) signaling, perhaps media access control (Media Access Control, be called for short MAC) signaling, or the PDCCH control signal is notified described UE by the configuration information of described E-PDCCH.

Exemplary, described base station is controlled (RRC) signaling by Radio Resource the method for the configuration information of described E-PDCCH notice UE is specifically comprised, base station comprises described E-PDCCH configuration information in cell auxiliary serving cell Radio Resource specialized configuration or auxiliary serving cell Radio Resource common configuration or Radio Resource specialized configuration or auxiliary serving cell physics specialized configuration or physics specialized configuration, and base station is controlled reconfiguration message by Radio Resource and sent described cell to UE.

Further, the method also comprises:

Base station is used E-PDCCH to send schedule information to subscriber equipment on the first subframe of frame structure, and this first subframe comprises the part or all of subframe of this frame structure.

Further, the method also comprises:

When part subframe that the first subframe is frame structure, this base station is used PDCCH to send above-mentioned schedule information to subscriber equipment on the second subframe of this frame structure, and this second subframe is frame structure all the other subframes except the first subframe.

Further, the method also comprises:

This base station identifies E-PDCCH by the bitmap mode on above-mentioned the first subframe.

Further, described method can also comprise,

During the described base station TAT corresponding at the described Serving cell that has configured described E-PDCCH operation, via the described E-PDCCH of described Serving cell, to described subscriber equipment, send schedule information; Perhaps,

During the described base station TAT off-duty corresponding at the described Serving cell that has configured described E-PDCCH, via the PDCCH of described Serving cell, to described subscriber equipment, send schedule information.

Exemplary, the resource information that E-PDCCH and PDCCH distribute for being carried as UE, UE monitors PDCCH and E-PDCCH in the DRX activity time, and be judged as the resource information of base station assigns to oneself according to PDCCH and the indicated UE sign of E-PDCCH as community-Radio Network Temporary Identifier (C-RNTI), Gains resources information, the sending/receiving data on indicated time-frequency domain resources in this resource information.

Further, when described Serving cell is main Serving cell, described method also comprises:

Described base station sends the first schedule information via the PDCCH of described main Serving cell to described subscriber equipment;

Described base station sends the second schedule information via the described E-PDCCH of described main Serving cell to described subscriber equipment;

Wherein, described the first schedule information is for dispatching following at least one message:

System information, paging or multimedia broadcast-multicast service single frequency network message;

Described the second schedule information can not comprise system information, paging or multimedia broadcast-multicast service single frequency network message.

Further, described method can also comprise: described base station is determining that described subscriber equipment Radio Link Failure is in the time period vertical successful to radio resource control connection reestablishment, via the PDCCH of described main Serving cell to described subscriber equipment transmission schedule information.

Further, described method can also comprise:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, described base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

Further, described method can also comprise:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, described base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

The enabled method of a kind of Physical Downlink Control Channel that the embodiment of the present invention provides.By base station, by E-PDCCH resource allocation information notice UE, make UE monitor described E-PDCCH according to described resource allocation information, do not need UE to monitor PDCCH and E-PDCCH always simultaneously, reduced the blind check number of times of UE.

Referring to Fig. 2, be the enabled method schematic flow sheet of UE side E-PDCCH, as shown in the figure, can comprise the following steps:

S201: the resource allocation information of the enhancing Physical Downlink Control Channel E-PDCCH that the Serving cell that subscriber equipment reception base station is described subscriber equipment configures; Wherein, described Serving cell is following at least one community: main Serving cell, auxiliary serving cell or new Serving cell corresponding to carrier type.

Exemplary, the resource allocation information of the E-PDCCH that the Serving cell that described subscriber equipment reception base station is described subscriber equipment configures can also comprise:

Described subscriber equipment has received configuration that described base station the sends described Serving cell of described E-PDCCH.

Exemplary, UE by the configuration that receives base station and send the Serving cell of E-PDCCH, can monitor described E-PDCCH at the Serving cell that has configured E-PDCCH or the Serving cell be associated with the described Serving cell that has configured E-PDCCH.

When having configured across carrier dispatching, described subscriber equipment receives the resource allocation information of the described E-PDCCH that described base station configures on described main Serving cell or dispatching cell.

Described E-PDCCH resource is distributed the resource mapping method of resource original position, demodulated reference signal configuration, Physical Uplink Control Channel feedback configuration information, E-PDCCH and PDSCH resource multiplex mode, E-PDCCH and the antenna port of type and corresponding resource block assignments, subframe pattern, E-PDCCH.

Exemplary, UE can control by Radio Resource (RRC) signaling, or media access control (MAC) signaling, or the resource allocation information of the E-PDCCH of the transmission of PDCCH control signal reception base station.

S202: described UE monitors described E-PDCCH according to described resource allocation information.

Exemplary, described subscriber equipment is monitored described E-PDCCH according to described resource allocation information, can comprise:

When described subscriber equipment in the discontinuous reception DRX activity time, and time corresponding to described Serving cell is while adjusting timer TAT operation, described subscriber equipment receives the resource allocation information of the described E-PDCCH that described base station sends to described subscriber equipment on described Serving cell; Perhaps,

When described subscriber equipment in the DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, described subscriber equipment receives described base station at described main Serving cell, reaches the resource allocation information of the described E-PDCCH sent to described subscriber equipment on the described Serving cell that described main TAG is corresponding; Perhaps,

When described subscriber equipment, in the DRX activity time, described subscriber equipment receives the resource allocation information of the described E-PDCCH sent to described subscriber equipment on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station;

Wherein, the described Serving cell that described main TAG is corresponding comprises described main Serving cell, described auxiliary serving cell or Serving cell corresponding to described new carrier type;

Exemplary, described UE monitors described E-PDCCH according to described resource allocation information and can comprise:

When the TAT that subscriber equipment is corresponding at the described Serving cell that has configured described E-PDCCH moves, receive the schedule information of described base station via the described E-PDCCH transmission of described Serving cell; Perhaps,

During the subscriber equipment TAT off-duty corresponding at the described Serving cell that has configured described E-PDCCH, receive the schedule information that described base station sends via the physical downlink control channel PDCCH of described Serving cell.

Further, the method also comprises:

Monitor above-mentioned E-PDCCH on the first subframe of the frame structure that subscriber equipment sends in base station, this first subframe comprises the part or all of subframe of frame structure.

Further, the method also comprises:

When part subframe that the first subframe is frame structure, monitor PDCCH on the second subframe of the frame structure that subscriber equipment sends in base station, this second subframe is frame structure all the other subframes except the first subframe.

Further, the method also comprises:

Subscriber equipment is identified above-mentioned E-PDCCH by the bitmap mode.

Further, when described Serving cell is main Serving cell, described method can also comprise:

Subscriber equipment receives first schedule information of described base station via the PDCCH transmission of described main Serving cell;

Subscriber equipment receives second schedule information of described base station via the E-PDCCH transmission of described main Serving cell;

Further, described method can also comprise:

Described subscriber equipment stands in the successful time period to radio resource control connection reestablishment at Radio Link Failure, receives the schedule information of described base station via the PDCCH transmission of described main Serving cell.

Further, described method can also comprise:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, described subscriber equipment is on described mourn in silence subframe and/or the non-subframe of mourning in silence, receive the schedule information of described base station via the E-PDCCH transmission of described Serving cell, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

Further, described method can also comprise:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, described subscriber equipment is on described mourn in silence subframe and/or the non-subframe of mourning in silence, receive the schedule information of described base station via the E-PDCCH transmission of described Serving cell, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

The enabled method of a kind of Physical Downlink Control Channel that the embodiment of the present invention provides.The resource allocation information of the E-PDCCH of the Serving cell configuration that UE is described UE by the reception base station, thus described E-PDCCH monitored according to described resource allocation information, do not need UE to monitor PDCCH and E-PDCCH always simultaneously, reduced the blind check number of times of UE.

Below by specific embodiment, said method embodiment is described.

Embodiment mono-

Take base station has configured a PCell and a SCell is example as UE, and certainly also being applicable to base station is the situation that UE has configured more SCell.

Exemplary, base station can be selected, to which Serving cell configuration E-PDCCH, can comprise according to physical conditions such as the load of Serving cell, interference, traffic carrying capacitys:

Base station is according to the load of Serving cell, and the Serving cell that is greater than pre-set threshold value for load configures E-PDCCH.

Exemplary, base station can set in advance the load threshold values, the load threshold values set in advance can take percentage for special services community Physical Resource Block in cycle fixed time, and base station can according to Serving cell, at certain hour, the descending total Physical Resource Block PRB in the cycle takies the load that situation is determined community.When base station determines that the load of Serving cell is greater than the load threshold values set in advance, base station is this Serving cell configuration E-PDCCH.

According to the number of users of Serving cell, for number of users is greater than pre-set threshold value Serving cell configuration E-PDCCH.

Exemplary, base station can set in advance the number of users threshold values, the number of users threshold values set in advance can be for special services community in cycle fixed time in connection status and the number of users of business activity is arranged, base station can according to certain hour in the cycle in Serving cell in connection status and while having the number of users of business activity to determine that the number of users of Serving cell is greater than the number of users threshold values set in advance, base station is this Serving cell configuration E-PDCCH.

According to channel quality and the needed channel quality of UE of Serving cell, the Serving cell that is less than the needed channel quality of UE for channel quality configures E-PDCCH.

Exemplary, base station can set in advance channel quality indication (the Channel Quality Indicator of special services community in cycle fixed time, be called for short CQI) threshold values, base station is judged according to the CQI of the special services community of UE report, when CQI is less than the CQI threshold values set in advance, base station is this Serving cell configuration E-PDCCH.

Exemplary, when when base station, according to said method, judgement need to configure E-PDCCH to SCell, if PCell and SCell are used different TA values, base station at UE in the DRX activity time, and the TAT that SCell is corresponding is SCell configuration E-PDCCH while moving, if PCell and SCell are used identical TA value, base station in the DRX activity time, and is SCell configuration E-PDCCH during the TAT of the TAG at PCell and SCell place group operation at UE.

Exemplary, base station can send Radio Resource to UE and control reconfiguration message, the resource allocation information that comprises E-PDCCH when newly-increased or modification SCell configuration.The RRC signaling can be passed through in base station, perhaps MAC signaling, perhaps the PDCCH control signal is by the configuration information of E-PDCCH notice UE, for example, the E-PDCCH resource allocation information can be included in the cell of radio-resource-configuration SCell special-purpose (Radio Resource Config Dedicated SCell) or in the cell of radio-resource-configuration SCell common (Radio Resource Config Common SCell) or in the cell of radio resource configuration special line (Radio Resource Config Dedicated) or in the cell of physical configuration SCell special-purpose (Physical Config Dedicated SCell) or in the cell of physical configuration special line (Physical Config Dedicated).

Wherein, during newly-increased SCell, the initial condition of SCell is deexcitation; While revising the SCell configuration information, the state of SCell keeps original state, for activating or deactivation status.UE does not monitor PDCCH on the SCell of deexcitation, not at Physical Downlink Shared Channel (PDSCH) downlink data receiving, do not send ascending physical signal Uplink Shared Channel (Physical uplink shared channel, be called for short PUSCH)/channel condition information (Channel State Information, be called for short CSI)/detection reference signal (Sounding Reference Signal is called for short SRS).Base station can send the activation/deactivation signaling to UE by the media access control layer control unit, after UE receives the activation/deactivation signaling of base station, activates SCell or deexcitation SCell.

After base station is SCell configuration E-PDCCH, and SCell is after state of activation, and base station, when the corresponding TAT operation of this SCell, sends schedule information via the E-PDCCH of this SCell to UE; When the corresponding TAT off-duty of this SCell, via on the resource location of the PDCCH of this SCell, to UE, sending schedule information.And, when the corresponding TAT operation of this SCell, UE monitors E-PDCCH on this SCell, to receive the schedule information of base station via the E-PDCCH transmission of this SCell; When the corresponding TAT off-duty of this SCell, UE monitors PDCCH on this SCell, to receive the schedule information of base station via the PDCCH transmission of this SCell.

Preferably, in order further to reduce the blind check number of times of UE, the resource allocation information that base station is SCell configuration E-PDCCH can comprise the resource location information of the time-frequency domain resources that this E-PDCCH takies, for example, the time domain scope that can comprise the frequency domain scope of the time-frequency domain resources that E-PDCCH takies or the time-frequency domain resources that E-PDCCH takies, or frequency domain scope and the time domain scope of the time-frequency domain resources that takies of E-PDCCH.

The present embodiment be take the frequency domain scope of E-PDCCH and is described as example, and wherein, the frequency domain scope of the time-frequency domain resources that the E-PDCCH of this SCell takies can be continuous or discontinuous.The frequency domain scope consecutive hours of the time-frequency domain resources taken as E-PDCCH, E-PDCCH concrete frequency location in time-frequency domain resources can be determined by the original position of indication frequency domain scope in base station; When the frequency domain scope of the time-frequency domain resources taken as E-PDCCH is discontinuous, the original position that base station can be by indication frequency domain scope and frequency domain interval are determined E-PDCCH concrete frequency location in time-frequency domain resources.Wherein, the original position of E-PDCCH can be indicated by PDCCH in base station, and UE obtains the original position of E-PDCCH by monitoring PDCCH; Base station also can be by the original position of signaling or agreement indication E-PDCCH, and UE obtains the original position of E-PDCCH while receiving signaling or agreement.The frequency domain range information of the E-PDCCH that UE sends by base station can only be carried out blind check in this frequency domain scope, thereby has further reduced the blind check number of times of UE.

After being changed to this SCell and reconfiguring E-PDCCH of the conditions such as the load of base station based on this SCell, interference, traffic carrying capacity, comprise and delete E-PDCCH configuration, modification E-PDCCH resource mapping, resource original position etc., recycling said method notice UE, then utilize the E-PDCCH reconfigured to send schedule information.

SCell throughput and dispatching efficiency, by configure E-PDCCH on SCell, can be improved in the present embodiment base station, the problem that the traditional PD CCH control domain of solution SCell is disturbed.

In this embodiment, be equally applicable to as PCell or Serving cell configuration E-PDCCH corresponding to new carrier type.

Embodiment bis-

Take that base station has configured a PCell and a SCell is example, certainly also be applicable to the situation that base station has configured more SCell.

Exemplary, base station is selected to PCell configuration E-PDCCH according to physical conditions such as the load of Serving cell, interference, traffic carrying capacitys, if PCell and SCell are used different TA values, base station at UE in the DRX activity time, and the TAT that PCell is corresponding is PCell configuration E-PDCCH while moving, if PCell and SCell are used identical TA value, base station in the DRX activity time, and is PCell configuration E-PDCCH during the TAT of the TAG at PCell and PCell place group operation at UE.

Exemplary, base station can send Radio Resource to UE and control reconfiguration message, the resource allocation information that comprises E-PDCCH when newly-increased or modification PCell configuration.The RRC signaling can be passed through in base station, perhaps MAC signaling, perhaps the PDCCH control signal is by the configuration information of E-PDCCH notice UE, for example, the resource allocation information of E-PDCCH can be included in the cell of radio-resource-configuration PCell special-purpose (Radio Resource Config Dedicated PCell) or in the cell of radio-resource-configuration PCell common (Radio Resource Config Common PCell) or in the cell of radio-resource-configuration special line (Radio Resource Config Dedicated) or in the cell of physical configuration PCell special-purpose (Physical Config Dedicated PCell) or in the cell of physical configuration special line (Physical Config Dedicated).

Wherein, during newly-increased PCell, the initial condition of PCell is for activating; While revising the PCell configuration information, the state of PCell keeps original state, is state of activation.

Further, after base station is PCell configuration E-PDCCH, and PCell is after state of activation, and base station, when the corresponding TAT operation of this PCell, sends schedule information via the E-PDCCH of this PCell to UE; When the corresponding TAT off-duty of this PCell, via on the resource location of the PDCCH of this PCell, to UE, sending schedule information.And, when the corresponding TAT operation of this PCell, UE monitors E-PDCCH on this PCell, to receive the schedule information of base station via the E-PDCCH transmission of this PCell; When the corresponding TAT off-duty of this PCell, UE monitors PDCCH on this PCell, to receive the schedule information of base station via the PDCCH transmission of this PCell.

Further, base station sends the first schedule information via the PDCCH of this PCell to UE;

Base station sends the second schedule information via the E-PDCCH of this PCell to UE;

Exemplary, base station to UE transmitting system information, paging, multimedia broadcast-multicast service single frequency network message, sends the schedule information except system information, paging, multimedia broadcast-multicast service single frequency network message via the E-PDCCH of PCell to UE via the PDCCH of PCell; UE receives system information, paging, the multimedia broadcast-multicast service single frequency network message of base station via the PDCCH transmission of PCell, receives the schedule information except system information, paging, multimedia broadcast-multicast service single frequency network message of base station via the E-PDCCH transmission of PCell.

Further, base station sends schedule information to the PDCCH via PCell in the time period before RRC connection re-establishment success to UE after UE Radio Link Failure RLF; Receive the schedule information of base station via the PDCCH transmission of PCell in time period before UE is successful to the RRC connection re-establishment after Radio Link Failure, so that reenter the RRC connection status.

Preferably, in order further to reduce the blind check number of times of UE, the resource allocation information that base station is PCell configuration E-PDCCH can comprise the resource location information of the time-frequency domain resources that this E-PDCCH takies, and the present embodiment be take the time domain scope of the time-frequency domain resources taken of E-PDCCH and described as example.

Exemplary, subframe be take as unit in time-domain resource position in the time-frequency domain resources position, use at least one subframe pattern, for at least one radio frames, (radio frames comprises 10 subframes), can be in the part subframe or all on subframe, uses E-PDCCH to send schedule information to UE in base station, on the subframe outside described part subframe, uses PDCCH to send schedule information to UE, and base station can use bitmap images (bitmap) to mean wherein which subframe is used E-PDCCH.

Referring to Fig. 3, be a sub-frame pattern, base station sends schedule information via E-PDCCH to UE in the subframe of white box representative, and UE monitors E-PDCCH in the subframe of white box representative, to receive base station, via E-PDCCH, to UE, sends schedule information; Monitor PDCCH in the subframe of black box representative, to receive base station, via PDCCH, to UE, send schedule information.For example, the subframe pattern can be used the subframe of mourning in silence (the Almost blank subframe of interfered cell, be called for short ABS) the subframe pattern, in such subframe pattern, interfered cell only sends the specific reference signal in community, synchronizing signal, and do not send PDCCH or send PDCCH with lower-wattage, the UE of interfered cell and/or interfered cell monitors E-PDCCH according to described subframe pattern.The subframe pattern can configure separately or utilize time domain measurement subframe limitation arrangement, comprises that PCell measures subframe pattern and nearby region measurement subframe pattern.

Exemplary, when this PCell is interfered cell, and configured while mourning in silence subframe at interfered cell, base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via this PCell sends schedule information to UE, and UE is on described mourn in silence subframe and/or the non-subframe of mourning in silence, and the reception base station sends schedule information via the E-PDCCH of this PCell to UE, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

When this PCell is interfered cell, and configured while mourning in silence subframe at this PCell, base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via this PCell sends schedule information to UE, UE is on described mourn in silence subframe and/or the non-subframe of mourning in silence, receive the schedule information that base station sends to UE via the E-PDCCH of this PCell, wherein, the described subframe of mourning in silence does not send PDCCH for this PCell or sends the subframe of PDCCH with lower-wattage.

The variation of the conditions such as the load of base station based on this PCell, interference, traffic carrying capacity, according to collocation strategy for after this PCell reconfigures E-PDCCH, comprise and delete E-PDCCH configuration, modification E-PDCCH resource mapping, resource original position etc., recycling said method notice UE, then utilize the E-PDCCH reconfigured to send schedule information.

In this embodiment, be equally applicable to as SCell or new carrier type configuration E-PDCCH.

The enabled method of a kind of Physical Downlink Control Channel that the embodiment of the present invention provides, can improve PCell throughput and dispatching efficiency, reduce the blind check number of times of UE, by the effectively interference of reduce disturbance community to interfered cell of configuration E-PDCCH on the specific sub-frame in interfered cell or interfered cell.

Embodiment tri-

At heterogeneous network (Heterogeneous network, be called for short Hetnet) carrier aggregation scene, macro base station (Macro eNB) and low power nodes (Low Power Node, be called for short LPN)/remote radio unit (RRU) (Remote Radio Head, abbreviation RRH) carrier wave provided carries out non-website polymerization altogether, referring to Fig. 4.If macro base station and LPN all provide carrier wave f1 and f2, the access macro base station UE (referred to as Macro UE) take f1 as PCell, f2 be SCell; The access LPN UE (referred to as Pico UE) take f2 as PCell, f1 be SCell.

If be configured in PCell, SCell is carried out across carrier dispatching, base station can be the SCell configuration/reconfiguration during across carrier dispatching by E-PDCCH configuration information notice UE, use E-PDCCH or PDCCH to the UE indication at dispatching cell.UE receives the E-PDCCH configuration information, according to described across dispatching cell information (the Scheduling Cell Information in carrier dispatching configuration, be called for short SCI) and carrier wave indication territory (Carrief Indicator Field, abbreviation CIF) information monitor E-PDCCH at dispatching cell.To Macro UE and Pico UE, at PCell separately, use E-PDCCH to carry out across carrier dispatching SCell, do not send PDCCH at PCell and the traditional PDCCH zone of SCell, can solve at PCell and use traditional PD CCH to carry out or obstructing problem limited across the contingent PDCCH capacity of carrier dispatching.

If at PCell, SCell is not undertaken across carrier dispatching by E-PDCCH or PDCCH, referring to Fig. 5, can use the mode of the embodiment of the present invention one.At SCell configuration E-PDCCH, at PCell, use traditional PD CCH.Disturb to avoid thereby make UE monitor E-PDCCH at SCell, at PCell, use traditional PD CCH.

On the one hand, the embodiment of the present invention provides a kind of base station 60, is applied to the method shown in Fig. 1, referring to Fig. 6-Fig. 7, comprise,

Dispensing unit 602, for the resource allocation information of described E-PDCCH from the configuration of described dispensing unit to described subscriber equipment that send, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information; Wherein, described Serving cell is following at least one community:

Main Serving cell, auxiliary serving cell or new Serving cell corresponding to carrier type;

Transmitting element 601, for the resource allocation information of described E-PDCCH from the configuration of described dispensing unit to described subscriber equipment that send, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information.

Further, above-mentioned transmitting element 601, also, for using E-PDCCH to send schedule information to subscriber equipment on the first subframe of frame structure, this first subframe comprises the part or all of subframe of frame structure.

Further, above-mentioned transmitting element 601 during also for the part subframe that is frame structure when the first subframe, is used PDCCH to send schedule information to subscriber equipment on the second subframe of frame structure, and the second subframe is frame structure all the other subframes except the first subframe.

Further, described transmitting element 601 can comprise:

The first judgment sub-unit 6011, for judging that whether described subscriber equipment is in the discontinuous reception DRX activity time;

Whether the second judgment sub-unit 6012, move for judging the time adjustment timer TAT that described Serving cell is corresponding, and/or judge whether TAT corresponding to main timing advance group TAG moves;

Send subelement 6013, for when described the first judgment sub-unit 6011, judging that described subscriber equipment is in the DRX activity time, and, when TAT corresponding to described the second described Serving cell of judgment sub-unit 6012 judgement moves, on described Serving cell, to described subscriber equipment, send described E-PDCCH; Perhaps,

Described transmission subelement 6013, for when described the first judgment sub-unit 6011, judging that described subscriber equipment is in the DRX activity time, and when TAT corresponding to described the second described main TAG of judgment sub-unit 6012 judgement moves, at described main Serving cell, reach on the described Serving cell that described main TAG is corresponding and send described E-PDCCH to described subscriber equipment; Perhaps,

Described transmission subelement 6013, for when the described subscriber equipment of described the first judgment sub-unit 6011 judgement in the DRX activity time, send described E-PDCCH to described subscriber equipment at auxiliary TAG on corresponding described Serving cell;

Further, described dispensing unit also for, when having configured across carrier dispatching, on described main Serving cell or dispatching cell the configuration described E-PDCCH.

Further, described transmitting element 601 can also be carried out a plurality of actions, both can adopt a transmitting element to complete the everything needed, and also can adopt a plurality of transmitting elements to complete respectively different actions.

For example,

Transmitting element 601 is further used for, and sends the information of the described Serving cell that has configured described E-PDCCH to described subscriber equipment, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

Described transmitting element 601 also for,

At the described Serving cell that has configured described E-PDCCH during corresponding TAT operation, via the described E-PDCCH of described Serving cell, to described subscriber equipment, send schedule information; Perhaps,

At the described Serving cell that has configured described E-PDCCH during corresponding TAT off-duty, via the physical downlink control channel PDCCH of described Serving cell, to described subscriber equipment, send schedule information.

Described transmitting element 601 is further used for,

PDCCH via described main Serving cell sends the first schedule information to described subscriber equipment;

Described E-PDCCH via described main Serving cell sends the second schedule information to described subscriber equipment;

Described transmitting element 601 is further used for, and is determining that described subscriber equipment Radio Link Failure is in the time period vertical successful to radio resource control connection reestablishment, via the PDCCH of described main Serving cell to described subscriber equipment transmission schedule information.

Described transmitting element 601 is further used for,

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

Described transmitting element 601 is further used for,

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

The base station that the present embodiment provides can be for carrying out the action of said method embodiment base station, and for example, dispensing unit 602 can carry out 101, and transmitting element 601 can carry out 102.

The base station that the embodiment of the present invention provides, by E-PDCCH resource allocation information notice UE, make UE monitor described E-PDCCH according to described resource allocation information, do not need UE to monitor PDCCH and E-PDCCH always simultaneously, reduced the blind check number of times of UE.

On the other hand, the embodiment of the present invention also provides a kind of subscriber equipment 80, is applied to the method shown in Fig. 2, and referring to Fig. 8, this subscriber equipment 80 comprises,

Receiving element 801, for receiving the resource allocation information of the enhancing Physical Downlink Control Channel E-PDCCH that Serving cell that base station is described subscriber equipment configures;

Wherein, described Serving cell is following at least one community:

Further, this receiving element is also monitored E-PDCCH on the first subframe for the frame structure in the base station transmission, and this first subframe comprises the part or all of subframe of frame structure.

Further, this receiving element during also for the part subframe that is frame structure when the first subframe, is monitored PDCCH on the second subframe of the frame structure sent in base station, and this second subframe is frame structure all the other subframes except the first subframe.

Exemplary, described receiving element 801 is further used for,

When described subscriber equipment 80 in the discontinuous reception DRX activity time, and time corresponding to described Serving cell is while adjusting timer TAT operation, receive the resource allocation information of the described E-PDCCH that described base station sends to described subscriber equipment on described Serving cell; Perhaps,

When described subscriber equipment 80 in the discontinuous reception DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, receive described base station at described main Serving cell, reach the resource allocation information of the described E-PDCCH sent to described subscriber equipment on the described Serving cell that described main TAG is corresponding; Perhaps,

In the discontinuous reception DRX activity time, receive the resource allocation information of the described E-PDCCH sent to described subscriber equipment on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station when described subscriber equipment 80;

Exemplary, described receiving element 801 is further used for, the information of described Serving cell of described E-PDCCH that received configuration that described base station sends,, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

Monitoring unit 802, monitor described E-PDCCH for the described resource allocation information received according to described receiving element.

Exemplary, described receiving element 801 can also be carried out a plurality of actions, both can adopt a receiving element 801 to complete the everything needed, and also can adopt a plurality of receiving elements 801 to complete respectively different actions.

Exemplary, described receiving element 801 is further used for, and receives the special member carrier information notice of base station configuration E-PDCCH;

Exemplary, described receiving element 801 is further used for,

When the corresponding time is adjusted timer TAT operation at the described Serving cell that has configured described E-PDCCH, receive the schedule information of described base station via the described E-PDCCH transmission of described Serving cell; Perhaps

At the described Serving cell that has configured described E-PDCCH during corresponding TAT off-duty, receive the schedule information that described base station sends via the physical downlink control channel PDCCH of described Serving cell.

When described Serving cell is main Serving cell, described receiving element also for,

Receive first schedule information of described base station via the PDCCH transmission of described main Serving cell;

Receive second schedule information of described base station via the E-PDCCH transmission of described main Serving cell;

Exemplary, described receiving element 801 is further used for,

Stand in the successful time period to radio resource control connection reestablishment at Radio Link Failure, receive the schedule information of described base station via the PDCCH transmission of described main Serving cell.

Exemplary, described receiving element 801 is further used for,

When having configured across carrier dispatching, receive the resource allocation information of the described E-PDCCH that described base station configures on described main Serving cell or dispatching cell.

Exemplary, described receiving element 801 is further used for,

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, on described mourn in silence subframe and/or the non-subframe of mourning in silence, receive the schedule information of described base station via the E-PDCCH transmission of described Serving cell, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

Exemplary, described receiving element 801 is further used for,

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, on described mourn in silence subframe and/or the non-subframe of mourning in silence, receive the schedule information of described base station via the E-PDCCH transmission of described Serving cell, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

The subscriber equipment 80 that the present embodiment provides can be for carrying out the action of said method embodiment subscriber equipment, and for example, receiving element 801 can carry out 201, and monitoring unit 802 can carry out 202.

The subscriber equipment 80 that the embodiment of the present invention provides, the resource allocation information of the E-PDCCH of the Serving cell configuration that is described subscriber equipment 80 by the reception base station, thereby monitor described E-PDCCH according to described resource allocation information, do not need subscriber equipment 80 to monitor PDCCH and E-PDCCH always simultaneously, reduced the blind check number of times of subscriber equipment 80.

Other method, the embodiment of the present invention also provides a kind of E-PDCCH enabled systems, referring to Fig. 9, comprises,

Base station 60, be used to the Serving cell configuration of serving subscriber equipment to strengthen Physical Downlink Control Channel E-PDCCH; Send the resource allocation information of described E-PDCCH to described subscriber equipment, so that described subscriber equipment is monitored described E-PDCCH according to described resource allocation information;

Subscriber equipment 80, the resource allocation information of the enhancing Physical Downlink Control Channel E-PDCCH that the Serving cell that is described subscriber equipment for subscriber equipment reception base station configures; Monitor described E-PDCCH according to described resource allocation information;

Wherein, described Serving cell is following at least one community:

The E-PDCCH enabled systems that the embodiment of the present invention provides, above-mentioned base station 60 can be the base station in said apparatus embodiment, above-mentioned subscriber equipment 80 can configure E-PDCCH and the resource allocation information of E-PDCCH is sent to subscriber equipment 80 for the Serving cell that the subscriber equipment in said apparatus embodiment is described subscriber equipment 80 by base station 60, thereby make subscriber equipment 80 monitor described E-PDCCH according to described resource allocation information, do not need subscriber equipment 80 to monitor PDCCH and E-PDCCH always simultaneously, reduced the blind check number of times of subscriber equipment 80.

One of ordinary skill in the art will appreciate that: realize that the hardware that all or part of step of said method embodiment can be relevant by program command completes, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims

1. the enabled method of a Physical Downlink Control Channel, is characterized in that, comprising:

The Serving cell configuration that base station is subscriber equipment strengthens Physical Downlink Control Channel E-PDCCH;

Wherein, described Serving cell is following at least one community:

2. method according to claim 1, is characterized in that, also comprises:

Described base station is used described E-PDCCH to send schedule information to described subscriber equipment on the first subframe of frame structure, and described the first subframe comprises the part or all of subframe of described frame structure.

3. method according to claim 2, is characterized in that, described base station is used described E-PDCCH to send schedule information to described subscriber equipment on the first subframe of frame structure, specifically comprises:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, described base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends described schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send physical downlink control channel PDCCH or sends the subframe of PDCCH with lower-wattage.

4. method according to claim 2, is characterized in that, described base station is used described E-PDCCH to send schedule information to described subscriber equipment on the first subframe of frame structure, specifically comprises:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, described base station is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell sends described schedule information to described subscriber equipment, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

5. according to the described method of claim 2 to 4 any one, it is characterized in that, also comprise:

When part subframe that described the first subframe is described frame structure, described base station is used PDCCH to send described schedule information to described subscriber equipment on the second subframe of described frame structure, and described the second subframe is described frame structure all the other subframes except described the first subframe.

6. according to the described method of claim 2 to 5 any one, it is characterized in that, also comprise:

Described base station identifies described E-PDCCH by the bitmap mode on described the first subframe.

7. according to the described method of claim 1 to 6 any one, it is characterized in that, also comprise:

When described base station judges that described subscriber equipment is in the discontinuous reception DRX activity time, and the time that described Serving cell is corresponding, while adjusting timer TAT operation, described base station was used described E-PDCCH to send described schedule information to described subscriber equipment on described Serving cell; Perhaps,

When described base station judges that described subscriber equipment is in the DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, described base station, at described main Serving cell, reaches on the described Serving cell that described main TAG is corresponding and uses described E-PDCCH to send described schedule information to described subscriber equipment; Perhaps,

When described base station judges that described subscriber equipment is in the DRX activity time, on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station, use described E-PDCCH to send described schedule information to described subscriber equipment;

Wherein, the described Serving cell that described main TAG is corresponding comprises described main Serving cell or auxiliary serving cell or Serving cell corresponding to described new carrier type;

8. according to the described method of claim 1 to 7 any one, it is characterized in that, described base station sends the resource allocation information of described E-PDCCH to described subscriber equipment, comprising:

Described base station sends the information of the described Serving cell that has configured described E-PDCCH to described subscriber equipment, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

9. method according to claim 2, is characterized in that, described base station is used described E-PDCCH to send schedule information to described subscriber equipment on the first subframe of frame structure, specifically comprises:

During the described base station TAT corresponding at the described Serving cell that has configured described E-PDCCH operation, via the described E-PDCCH of described Serving cell, to described subscriber equipment, send the second schedule information.

10. method according to claim 9, is characterized in that, described base station is used PDCCH to send described schedule information to described subscriber equipment on the second subframe of described frame structure, specifically comprises:

During the described base station TAT off-duty corresponding at the described Serving cell that has configured described E-PDCCH, via the PDCCH of described Serving cell, to described subscriber equipment, send the first schedule information.

11. method according to claim 10 is characterized in that:

When described Serving cell is main Serving cell, described base station sends described the first schedule information via the PDCCH of described Serving cell to described subscriber equipment, specifically comprises:

Described base station sends described the first schedule information via the PDCCH of described main Serving cell to described subscriber equipment;

When described Serving cell is main Serving cell, described base station sends described the second schedule information via the E-PDCCH of described Serving cell to described subscriber equipment, specifically comprises:

Described base station sends described the second schedule information via the described E-PDCCH of described main Serving cell to described subscriber equipment;

System information, paging or multimedia broadcast-multicast service single frequency network message.

12. according to the described method of claim 5 to 9 any one, it is characterized in that, described base station is used PDCCH to send described schedule information to described subscriber equipment on the second subframe of described frame structure, specifically comprises:

Described base station is determining that described subscriber equipment Radio Link Failure is in the time period vertical successful to radio resource control connection reestablishment, via the PDCCH of described main Serving cell to described subscriber equipment transmission schedule information.

13. according to the described method of claim 1 to 12 any one, it is characterized in that, the Serving cell configuration E-PDCCH that described base station is described subscriber equipment comprises:

14. according to the described method of claim 1 to 13 any one, it is characterized in that, described configuration information comprises at least one of following information:

15. the enabled method of a Physical Downlink Control Channel, is characterized in that, comprising:

Wherein, described Serving cell is following at least one community:

16. method according to claim 15, is characterized in that, also comprises:

Monitor described E-PDCCH on the first subframe of the frame structure that described subscriber equipment sends in described base station, described the first subframe comprises the part or all of subframe of described frame structure.

17. method according to claim 16, is characterized in that, monitors described E-PDCCH on the first subframe of the frame structure that described subscriber equipment sends in described base station, specifically comprises:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at interfered cell, described subscriber equipment is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell monitors described schedule information, wherein, the described subframe of mourning in silence is that described interfered cell does not send physical downlink control channel PDCCH or sends the subframe of PDCCH with lower-wattage.

18. method according to claim 16, is characterized in that, monitors described E-PDCCH on the first subframe of the frame structure that described subscriber equipment sends in described base station, specifically comprises:

When described Serving cell is interfered cell, and configured while mourning in silence subframe at described interfered cell, described subscriber equipment is on described mourn in silence subframe and/or the non-subframe of mourning in silence, E-PDCCH via described Serving cell monitors described schedule information, wherein, the described subframe of mourning in silence is that described interfered cell does not send PDCCH or sends the subframe of PDCCH with lower-wattage.

19. according to claim 16 to the described method of 18 any one, it is characterized in that, also comprise:

When part subframe that described the first subframe is described frame structure, monitor PDCCH on the second subframe of the described frame structure that described subscriber equipment sends in described base station, described the second subframe is described frame structure all the other subframes except described the first subframe.

20. according to claim 16 to the described method of 19 any one, it is characterized in that, also comprise:

Described subscriber equipment is identified described E-PDCCH by the bitmap mode.

21. method according to claim 15, is characterized in that, described subscriber equipment is monitored described E-PDCCH according to described resource allocation information, comprising:

When described subscriber equipment in the discontinuous reception DRX activity time, and the time that described Serving cell is corresponding, while adjusting timer TAT operation, described subscriber equipment received the schedule information that described base station sends to described subscriber equipment at the above E-PDCCH of described Serving cell; Perhaps,

When described subscriber equipment in the DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, described subscriber equipment receives described base station at described main Serving cell, reaches the schedule information of using described E-PDCCH to send to described subscriber equipment on the described Serving cell that described main TAG is corresponding; Perhaps,

When described subscriber equipment, in the DRX activity time, described subscriber equipment receives the schedule information of using described E-PDCCH to send to described subscriber equipment on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station;

22. according to claim 15 to the described method of 21 any one, it is characterized in that, the resource allocation information of the E-PDCCH that the Serving cell that described subscriber equipment reception base station is described subscriber equipment configures comprises:

The information of described Serving cell of described E-PDCCH that described subscriber equipment has received configuration that described base station sends, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

23. method according to claim 15, is characterized in that, also comprises:

When the TAT that described subscriber equipment is corresponding at the described Serving cell that has configured described E-PDCCH moves, receive the schedule information of described base station via the described E-PDCCH transmission of described Serving cell; Perhaps,

During the described subscriber equipment TAT off-duty corresponding at the described Serving cell that has configured described E-PDCCH, receive the schedule information that described base station sends via the physical downlink control channel PDCCH of described Serving cell.

24. method according to claim 15, is characterized in that, when described Serving cell is main Serving cell, described method also comprises:

Described subscriber equipment receives first schedule information of described base station via the PDCCH transmission of described main Serving cell;

Described subscriber equipment receives second schedule information of described base station via the E-PDCCH transmission of described main Serving cell;

25. a base station, is characterized in that, comprises,

Dispensing unit, be used to the Serving cell configuration of subscriber equipment to strengthen Physical Downlink Control Channel E-PDCCH;

Wherein, described Serving cell is following at least one community:

26. base station according to claim 25 is characterized in that:

Described transmitting element, also, for using described E-PDCCH to send schedule information to described subscriber equipment on the first subframe of frame structure, described the first subframe comprises the part or all of subframe of described frame structure.

27. base station according to claim 26 is characterized in that:

Described transmitting element, during also for the part subframe that is described frame structure when described the first subframe, on the second subframe of described frame structure, use PDCCH to send described schedule information to described subscriber equipment, described the second subframe is described frame structure all the other subframes except described the first subframe.

28. base station according to claim 25, is characterized in that, described transmitting element comprises:

The first judgment sub-unit, for judging that whether described subscriber equipment is in the discontinuous reception DRX activity time;

Whether the second judgment sub-unit, move for judging the time adjustment timer TAT that described Serving cell is corresponding, and/or judge whether TAT corresponding to main timing advance group TAG moves;

Send subelement, for when described the first judgment sub-unit, judging that described subscriber equipment is in the DRX activity time, and, when described the second judgment sub-unit judges TAT corresponding to described Serving cell operation, on described Serving cell, use described E-PDCCH to send schedule information; Perhaps,

Described transmission subelement, for when described the first judgment sub-unit, judging that described subscriber equipment is in the DRX activity time, and when TAT corresponding to the described main TAG of described the second judgment sub-unit judgement moves, at described main Serving cell, reach on the described Serving cell that described main TAG is corresponding and use described E-PDCCH to send schedule information; Perhaps,

Described transmission subelement, for judging that described subscriber equipment is in the DRX activity time when described the first judgment sub-unit, used described E-PDCCH to send schedule information at auxiliary TAG on corresponding described Serving cell;

29. according to the described base station of claim 25 to 28 any one, it is characterized in that, described transmitting element is further used for, send the information of the described Serving cell that has configured described E-PDCCH to described subscriber equipment, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

30. base station according to claim 25, is characterized in that, described transmitting element also for,

31. base station according to claim 25, is characterized in that, described transmitting element also for,

32. base station according to claim 25, it is characterized in that, described transmitting element also for, determining that described subscriber equipment Radio Link Failure is in the time period vertical successful to radio resource control connection reestablishment, via the PDCCH of described main Serving cell to described subscriber equipment transmission schedule information.

33. according to the described base station of claim 25 to 32 any one, it is characterized in that, described dispensing unit also for, when having configured across carrier dispatching, on described main Serving cell or dispatching cell the configuration described E-PDCCH.

34. base station according to claim 25, is characterized in that, described transmitting element also for,

35. base station according to claim 25, is characterized in that, described transmitting element also for,

36. according to the described base station of claim 25 to 35 any one, it is characterized in that, described configuration information comprises at least one of following information:

37. a subscriber equipment, is characterized in that, comprises,

Wherein, described Serving cell is following at least one community:

38. according to the described subscriber equipment of claim 37, it is characterized in that, described receiving element also for:

Monitor described E-PDCCH on the first subframe of the frame structure sent in described base station, described the first subframe comprises the part or all of subframe of described frame structure.

39. according to the described subscriber equipment of claim 38, it is characterized in that, described receiving element also for:

When part subframe that described the first subframe is described frame structure, monitor PDCCH on the second subframe of the described frame structure sent in described base station, described the second subframe is described frame structure all the other subframes except described the first subframe.

40. according to the described subscriber equipment of claim 37, it is characterized in that, described receiving element also for,

,, receive described base station and uses described E-PDCCH transmission schedule information on described Serving cell and time corresponding to described Serving cell while adjusting timer TAT operation in the discontinuous reception DRX activity time when described subscriber equipment; Perhaps,

When described subscriber equipment in the discontinuous reception DRX activity time, and when the TAT that main timing advance group TAG is corresponding moves, receive described base station at described main Serving cell, reach on the described Serving cell that described main TAG is corresponding and use described E-PDCCH to send schedule information; Perhaps,

, receive on the described Serving cell corresponding at auxiliary timing advance group TAG of described base station and use described E-PDCCH to send schedule information in the discontinuous reception DRX activity time when described subscriber equipment;

Wherein, the described Serving cell that described main TAG is corresponding comprises described main Serving cell, auxiliary serving cell or Serving cell corresponding to described new carrier type;

41. according to the described subscriber equipment of claim 37, it is characterized in that, described receiving element is further used for, the information of described Serving cell of described E-PDCCH that received configuration that described base station sends,, the described information that has configured the described Serving cell of described E-PDCCH be following at least one:

42. according to the described subscriber equipment of claim 37, it is characterized in that, described receiving element also for,

43. according to the described subscriber equipment of claim 37, it is characterized in that, when described Serving cell is main Serving cell, described receiving element also for,