CN102231913B - A kind of method, system and equipment distributing and determine PDCCH - Google Patents
A kind of method, system and equipment distributing and determine PDCCH Download PDFInfo
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- CN102231913B CN102231913B CN201110164810.7A CN201110164810A CN102231913B CN 102231913 B CN102231913 B CN 102231913B CN 201110164810 A CN201110164810 A CN 201110164810A CN 102231913 B CN102231913 B CN 102231913B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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Abstract
The embodiment of the present invention relates to wireless communication technology field, particularly a kind of method, system and equipment distributing and determine PDCCH, in order to distribute PDCCH resource under PDCCH enhanced scheme.The method of a kind of PDCCH that the embodiment of the present invention provides comprises: the transmission mode of the PDSCH corresponding to network side notifying user equipment; The transmission mode of the PDSCH of described network side corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation; Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.Due to PDCCH resource can be distributed under PDCCH enhanced scheme, thus effective transmission and the reception of PDCCH can be ensured.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment distributing and determine PDCCH.
Background technology
At LTE (Long Term Evolution; Long Term Evolution) in system, PDCCH (PhysicalDownlink Control Channel, physical downlink control channel) send in each wireless sub-frame, and with PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) form the relation of TDM (Time Division Multiple, time division multiplexing).PDCCH is sent by top n OFDM (Orthogonal Frequency Division Multiplexing, the OFDM) symbol of a descending sub frame.
The control area of transmitting PDCCH in LTE system is made up of the CCE of logical partitioning (Control ChannelElement, control channel element).DCI (Downlink Control Information, Downlink Control Information) transmission be also unit based on CCE, for a UE (User Equipment, subscriber equipment) a DCI can send in N number of continuous print CCE, in LTE system, the possible value of N is 1,2,4,8, be called CCE polymerization grade (Aggregation Level).UE carries out PDCCH blind check in control area, whether search exists the PDCCH sent for it, namely blind check uses RNTI (the Radio Network Temporary Identifier of this UE, infinite network temporary identifier) decoding trial is carried out to different DCI format and CCE polymerization grade, if decoding is correct, then receive the DCI for this UE.LTE UE each descending sub frame in non-DRX (Discontinuous Reception, discontinuous reception) state needs to carry out blind check to control area, search PDCCH.
Control area in LTE system in a subframe is made up of two spaces, i.e. CSS (CommonSearch Space, public search space) and UESS (UE-specific Search Space, the exclusive search volume of subscriber equipment).The DCI of the wherein exclusive control information in public search space main users device transmission dispatching cell (such as system information, beep-page message, multicast-power control information etc.), the exclusive search volume of subscriber equipment is mainly used in transmitting the DCI for each UE scheduling of resource.In each descending sub frame, public search space comprises front 16 CCE, and in public search space, CCE polymerization grade only supports 4,8 two kinds; The initial CCE position of the UE search volume that in each descending sub frame, each subscriber equipment is exclusive is numbered to subframe, the RNTI of UE etc. is relevant, supports CCE polymerization grade 1,2,4,8 in the exclusive search volume of subscriber equipment.In UESS, the corresponding search volume of the blind check of each polymerization grade, the different polymerization grade of namely UE blind check carries out in different search volumes.
In order to improve the demand to PDCCH channel capacity further, PDCCH is strengthened.For the PDCCH strengthened, current scheme is the PDCCH sending enhancing in the PDSCH territory while of retaining original PDCCH territory in descending sub frame.Original PDCCH territory still adopts existing transmission and reception technique, use original PDCCH resource, transmitting diversity is adopted during as sent, based on CRS (cell-specific reference signal during reception, cell-level reference signal) adopt blind check technology to carry out blind check at public search space and the exclusive search volume of subscriber equipment to DCI, take top n OFDM symbol to send, the value that wherein N is possible is 1,2,3,4, and N=4 only to allow to appear at system bandwidth be in the system of 1.4MHz, this part PDCCH territory is called Legacy PDCCH territory.The PDCCH territory strengthened can use more advanced transmission and reception technique, use the part resource of original PDSCH, precoding is adopted during as sent, based on user-specific reference signal (UE-Specific Reference Signal during reception, UE-RS), also be DMRS (Demodulation Reference Symbol, demodulation reference mark) detect, the running time-frequency resource taken beyond Legacy PDCCH territory sends, and this part PDCCH territory is called EnhancedPDCCH territory.
After PDCCH strengthens, the PDCCH resource of LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) system will comprise original PDCCH territory (Legacy PDCCH) and strengthen PDCCH territory (Enhanced PDCCH).Existing legacy version user (as, Rel-8/9/10) cannot support that the DCI in EnhancedPDCCH territory receives, so the DCI of all legacy version users is still distributed in LegacyPDCCH territory, redaction user (as, Rel-11 is or/and other more highest versions) DCI both can transmit in Legacy PDCCH territory, also can transmit in Enhanced PDCCH territory.In the process receiving PDCCH, redaction subscriber equipment needs to know self corresponding PDCCH in LegacyPDCCH territory still in E-PDCCH territory.But distribute the scheme of PDCCH resource under also there is no a kind of PDCCH of enhancing in current scheme.
Summary of the invention
A kind of method, system and equipment distributing and determine PDCCH that the embodiment of the present invention provides, in order to distribute PDCCH resource under PDCCH enhanced scheme.
The method of a kind of PDCCH that the embodiment of the present invention provides, comprising:
The transmission mode of the PDSCH corresponding to network side notifying user equipment;
The transmission mode of the PDSCH of described network side corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
A kind of method determining PDCCH that the embodiment of the present invention provides, comprising:
The transmission mode of the corresponding PDSCH of subscriber equipment determination network side notice;
Described subscriber equipment, according to the transmission mode of corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
A kind of network equipment distributing PDCCH that the embodiment of the present invention provides, comprising:
Notification module, for the transmission mode of the PDSCH corresponding to notifying user equipment;
Distribution module, for the transmission mode of the PDSCH corresponding to subscriber equipment, is the corresponding PDCCH resource of user equipment allocation;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
A kind of subscriber equipment determining PDCCH that the embodiment of the present invention provides, comprising:
Transmission mode determination module, for determining the transmission mode of the PDSCH corresponding to network side notice;
Resource determination module, for the transmission mode according to corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
A kind of system determining PDCCH that the embodiment of the present invention provides, comprising:
Network equipment, for the transmission mode of the PDSCH corresponding to notifying user equipment, the transmission mode of the PDSCH corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation;
Subscriber equipment, for determining the transmission mode of the PDSCH corresponding to network side notice, according to the transmission mode of corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
Due to PDCCH resource can be distributed under PDCCH enhanced scheme, thus effective transmission and the reception of PDCCH can be ensured;
Further, reasonable distribution carried out to PDCCH resource and avoid increasing unnecessary signaling consumption.
Accompanying drawing explanation
Fig. 1 is the system configuration schematic diagram that the embodiment of the present invention determines PDCCH;
Fig. 2 is the network equipment structural representation that the embodiment of the present invention distributes PDCCH;
Fig. 3 is the user device architecture schematic diagram that the embodiment of the present invention determines PDCCH;
Fig. 4 is the method flow schematic diagram that the embodiment of the present invention distributes PDCCH;
Fig. 5 is the method flow schematic diagram that the embodiment of the present invention determines PDCCH.
Embodiment
The transmission mode of the PDSCH corresponding to embodiment of the present invention network side notifying user equipment, and the transmission mode of PDSCH corresponding to subscriber equipment are the corresponding PDCCH resource of user equipment allocation; Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.Due to PDCCH resource can be distributed under PDCCH enhanced scheme, thus effective transmission and the reception of PDCCH can be ensured.
Wherein, Legacy PDCCH territory is: use existing LTE/LTE-A standard (as, Rel-8/9/10) (e.g., take top n OFDM symbol and send, the value that wherein N is possible is 1 to the part resource in the control area defined in, 2,3,4, and N=4 only to allow to appear at system bandwidth be in the system of 1.4MHz), utilize CRS to carry out channel measurement and demodulation, adopt single port or transmitting diversity mode to carry out the part PDCCH region of DCI transmission.
Enhanced PDCCH territory is: follow-up LTE-A standard (as, Rel-11 is or/and other more highest versions) in, use existing LTE/LTE-A standard (as, Rel-8/9/10) part resource (other OFDM symbol e.g., beyond control area) in the data area defined in carries out the part PDCCH region of DCI transmission.
In declarative procedure below, first implement to be described from the cooperation of network side and user equipment side, finally be described from the enforcement of network side and user equipment side respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and user equipment side separate implement time, also solve the problem respectively existing for network side, user equipment side, when just the two is combined, better technique effect can be obtained.
As shown in Figure 1, the embodiment of the present invention determines that the system of PDCCH comprises: network equipment 10 and subscriber equipment 20.
Network equipment 10, for the transmission mode of the PDSCH corresponding to notifying user equipment 20, the transmission mode of the PDSCH corresponding to subscriber equipment 20, for subscriber equipment 20 distributes corresponding PDCCH resource;
Subscriber equipment 20, for determining the transmission mode of the PDSCH corresponding to network side notice, according to the transmission mode of corresponding PDSCH, determines PDCCH resource;
Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
Preferably, network equipment 10 is by the transmission mode of the PDSCH corresponding to high-level signaling notifying user equipment 20.
The transmissionMode in high-level signaling AntennaInfoDedicated territory is such as utilized to indicate.
If the embodiment of the present invention is applied in lte-a system, the particular content of transmission mode can see table 1:
Table 1
Wherein, the transmission mode of the PDSCH of network side corresponding to subscriber equipment, for the mode of the corresponding PDCCH resource of user equipment allocation has a variety of, enumerates several below.
If the transmission mode of the PDSCH corresponding to mode one subscriber equipment 20 carries out channel measurement and signal receiving based on CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by network equipment 10;
Accordingly, if the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on CRS, subscriber equipment 20 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
For lte-a system, the transmission mode of carrying out the PDSCH of channel measurement and signal receiving based on CRS is transmission mode 1 ~ 6, see table 1.
If the transmission mode of the PDSCH corresponding to mode two subscriber equipment 20 is carried out channel measurement based on CRS and (is equal to DMRS based on UE-RS, port 5 down together) or CRS carry out demodulation, CSS and UESS corresponding to subscriber equipment 20 is assigned in Legacy PDCCH territory by network equipment 10;
Accordingly, if the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, subscriber equipment 20 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
For lte-a system, carry out channel measurement based on CRS and be transmission mode 1 ~ 7 based on the transmission mode that the port 5 of UE-RS or CRS carry out the PDSCH of demodulation, see table 1.
If the transmission mode of the PDSCH corresponding to mode three subscriber equipment 20 carries out channel measurement based on CRS, CSS and UESS corresponding to subscriber equipment 20 is assigned in LegacyPDCCH territory by network equipment 10;
Accordingly, if the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, subscriber equipment 20 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
For lte-a system, the transmission mode of carrying out the PDSCH of channel measurement based on CRS is transmission mode 1 ~ 8, see table 1.
If the transmission mode of the PDSCH corresponding to mode four subscriber equipment 20 does not carry out channel measurement and signal receiving based on CRS, CSS corresponding to subscriber equipment 20 is assigned in Legacy PDCCH territory by network equipment 10, is assigned to by UESS in Enhanced PDCCH territory;
Accordingly, if the transmission mode of corresponding PDSCH does not carry out channel measurement and signal receiving based on CRS, subscriber equipment 20 determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in Enhanced PDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment 20 is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment 20 in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
If the transmission mode of the PDSCH corresponding to mode five subscriber equipment 20 is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, CSS corresponding to subscriber equipment 20 is assigned in Legacy PDCCH territory by network equipment 10, is assigned to by UESS in EnhancedPDCCH territory;
Accordingly, if the transmission mode of corresponding PDSCH is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, subscriber equipment 20 determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in Enhanced PDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment 20 is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment 20 in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
If the transmission mode of the PDSCH corresponding to mode six subscriber equipment 20 does not carry out channel measurement based on CRS, the CSS corresponding to subscriber equipment 20 is assigned in Legacy PDCCH territory by network equipment 10, is assigned to by UESS in Enhanced PDCCH territory;
Accordingly, if the transmission mode of corresponding PDSCH does not carry out channel measurement based on CRS, subscriber equipment 20 determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in EnhancedPDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment 20 is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment 20 in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
In concrete enforcement, any one mode in several mode above can be adopted to distribute; Various ways above can also adopting under the prerequisite do not clashed distributes.
Wherein, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), also can be possess individual cell identifier (cell identification, cell ID) RN (Relay Node, relay contact) equipment can also be other network equipment.
Based on same inventive concept, additionally provide in the embodiment of the present invention a kind of network equipment, subscriber equipment, distribution PDCCH method and determine the method for PDCCH, the principle of dealing with problems due to these equipment and method is similar to determining the system of PDCCH, therefore the enforcement of these equipment and method see the enforcement of system, can repeat part and repeats no more.
As shown in Figure 2, the network equipment of embodiment of the present invention distribution PDCCH comprises: notification module 200 and distribution module 210.
Notification module 200, for the transmission mode of the PDSCH corresponding to notifying user equipment;
Distribution module 210, for the transmission mode of the PDSCH corresponding to subscriber equipment, is the corresponding PDCCH resource of user equipment allocation;
Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
Preferably, if the transmission mode of the PDSCH corresponding to subscriber equipment carries out channel measurement and signal receiving based on CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by distribution module 210.
Preferably, if the transmission mode of the PDSCH corresponding to subscriber equipment is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by distribution module 210.
Preferably, if the transmission mode of the PDSCH corresponding to subscriber equipment carries out channel measurement based on CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by distribution module 210.
As shown in Figure 3, the embodiment of the present invention determines that the subscriber equipment of PDCCH comprises: transmission mode determination module 300 and resource determination module 310.
Transmission mode determination module 300, for determining the transmission mode of the PDSCH corresponding to network side notice;
Resource determination module 310, for the transmission mode according to corresponding PDSCH, determines PDCCH resource;
Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
Preferably, if the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on cell-level reference signal CRS, resource determination module 310 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
Preferably, if the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, resource determination module 310 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
Preferably, if the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, resource determination module 310 determines that corresponding CSS and UESS is in Legacy PDCCH territory.
As shown in Figure 4, the method for embodiment of the present invention distribution PDCCH comprises the following steps:
The transmission mode of step 401, physical down link sharing channel PDSCH corresponding to network side notifying user equipment;
The transmission mode of step 402, the network side PDSCH corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation;
Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory.
Preferably, in step 401, network side is by the transmission mode of the PDSCH corresponding to high-level signaling notifying user equipment 20.
If the embodiment of the present invention is applied in lte-a system, the particular content of transmission mode can see table 1.
Wherein, the transmission mode of the PDSCH of network side corresponding to subscriber equipment, for the mode of the corresponding PDCCH resource of user equipment allocation has a variety of, enumerates several below.
If the transmission mode of the PDSCH corresponding to mode one subscriber equipment carries out channel measurement and signal receiving based on CRS, CSS and UESS corresponding to subscriber equipment is assigned in LegacyPDCCH territory by network side.
For lte-a system, the transmission mode of carrying out the PDSCH of channel measurement and signal receiving based on CRS is transmission mode 1 ~ 6, see table 1.
If the transmission mode of the PDSCH corresponding to mode two subscriber equipment is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by network side.
For lte-a system, carry out channel measurement based on CRS and be transmission mode 1 ~ 7 based on the transmission mode that the port 5 of UE-RS or CRS carry out the PDSCH of demodulation, see table 1.
If the transmission mode of the PDSCH corresponding to mode three subscriber equipment carries out channel measurement based on CRS, CSS and UESS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by network side.
For lte-a system, the transmission mode of carrying out the PDSCH of channel measurement based on CRS is transmission mode 1 ~ 8, see table 1.
If the transmission mode of the PDSCH corresponding to mode four subscriber equipment does not carry out channel measurement and signal receiving based on CRS, the CSS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by network side, is assigned to by UESS in Enhanced PDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
If the transmission mode of the PDSCH corresponding to mode five subscriber equipment is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, CSS corresponding to subscriber equipment 20 is assigned in Legacy PDCCH territory by network side, is assigned to by UESS in Enhanced PDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
If the transmission mode of the PDSCH corresponding to mode six subscriber equipment does not carry out channel measurement based on CRS, the CSS corresponding to subscriber equipment is assigned in Legacy PDCCH territory by network side, is assigned to by UESS in Enhanced PDCCH territory.
Certainly, for the transmission mode of not carrying out channel measurement and signal receiving based on CRS, also can adopt other methods of salary distribution, such as CSS and UESS corresponding to subscriber equipment is assigned in EnhancedPDCCH territory; By the CSS corresponding to subscriber equipment in Enhanced PDCCH territory, UESS is in Legacy PDCCH territory.
In concrete enforcement, any one mode in several mode above can be adopted to distribute; Various ways above can also adopting under the prerequisite do not clashed distributes.
As shown in Figure 5, the embodiment of the present invention determines that the method for PDCCH comprises the following steps:
The transmission mode of the corresponding PDSCH of step 501, subscriber equipment determination network side notice;
Step 502, subscriber equipment, according to the transmission mode of corresponding PDSCH, determine PDCCH resource;
Wherein, PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory
If the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on CRS, in step 502, subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory.
If the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, in step 502, subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory.
If the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, in step 502, subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory.
Wherein, Fig. 4 and Fig. 5 can synthesize a flow process, forms the method that another determines PDCCH, namely first performs step 401 and step 402, then performs step 501 and step 502; Or first perform step 401 and step 501, then perform step 402 and step 502.
Followingly enumerate several example the present invention program is further illustrated.
Example one, at transmitting terminal, if the transmission mode of subscriber equipment is carry out channel measurement and signal receiving based on CRS, then CSS and UESS corresponding to subscriber equipment is distributed in LegacyPDCCH territory by transmitting terminal, otherwise the CSS corresponding to subscriber equipment is distributed in Legacy PDCCH territory by transmitting terminal, UESS is distributed in Enhanced PDCCH territory, or realizes the distribution of CSS and UESS of this type of user by Else Rule.As, in lte-a system, the transmission mode of subscriber equipment is the one in pattern 1 ~ 6 (pattern 1 ~ 6 is measured and demodulation, see table 1 based on CRS), then CSS and UESS corresponding to user is distributed in Legacy PDCCH territory.
Example two, at transmitting terminal, if the transmission mode of subscriber equipment is carry out channel measurement based on CRS, then CSS and UESS corresponding to subscriber equipment is distributed in Legacy PDCCH territory by transmitting terminal, otherwise the CSS corresponding to subscriber equipment is distributed in Legacy PDCCH territory by transmitting terminal, UESS is distributed in Enhanced PDCCH territory, or realizes the distribution of CSS and UESS of this type of user by Else Rule.As, in lte-a system, the transmission mode of subscriber equipment is the one in pattern 1 ~ 8 (pattern 1 ~ 8 is measured, see table 1 based on CRS), then CSS and UESS corresponding to subscriber equipment is distributed in Legacy PDCCH territory.
Embodiment three: at transmitting terminal, if the transmission mode of subscriber equipment is carry out channel measurement based on CRS and carry out demodulation based on the port 5 of UE-RS or CRS, then CSS and UESS corresponding to subscriber equipment is distributed in Legacy PDCCH territory by transmitting terminal, otherwise the CSS corresponding to subscriber equipment is distributed in Legacy PDCCH territory by transmitting terminal, UESS is distributed in Enhanced PDCCH territory, or realizes the distribution of CSS and UESS of this type of user by Else Rule.As, in lte-a system, the transmission mode of subscriber equipment is that (pattern 1 ~ 7 is carry out channel measurement based on CRS and carry out demodulation based on the port 5 of UE-RS or CRS for pattern 1 ~ 7, see table 1) in one, then CSS and UESS corresponding to subscriber equipment is distributed in Legacy PDCCH territory.
It should be noted that, concrete MODE NUMBER is above all illustrate for table 1, if table 1 has any variation, upper mask body MODE NUMBER also needs corresponding modify.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Due to PDCCH resource can be distributed under PDCCH enhanced scheme, thus effective transmission and the reception of PDCCH can be ensured;
Further, reasonable distribution carried out to PDCCH resource and avoid increasing unnecessary signaling consumption.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. distribute a method for physical downlink control channel PDCCH, it is characterized in that, the method comprises:
The transmission mode of the physical down link sharing channel PDSCH corresponding to network side notifying user equipment;
The transmission mode of the PDSCH of described network side corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation;
Wherein, described PDCCH resource comprises original Legacy PDCCH territory and strengthens EnhancedPDCCH territory;
The transmission mode of the PDSCH of described network side corresponding to described subscriber equipment is the corresponding PDCCH resource of user equipment allocation by the one in following manner:
Mode one: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement and signal receiving based on cell-level reference signal CRS, the general search space CSS corresponding to described subscriber equipment and the exclusive search volume UESS of subscriber equipment is assigned in Legacy PDCCH territory by described network side;
Mode two: if the transmission mode of the PDSCH corresponding to described subscriber equipment is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of user-specific reference signal UE-RS or CRS, CSS and UESS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory by described network side;
Mode three: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement based on CRS, CSS and UESS corresponding to described subscriber equipment is assigned in LegacyPDCCH territory by described network side;
Mode four: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement and signal receiving based on CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory by described network side, is assigned to by UESS in Enhanced PDCCH territory;
Mode five: if the transmission mode of the PDSCH corresponding to described subscriber equipment is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory by described network side, is assigned to by UESS in EnhancedPDCCH territory;
Mode six: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement based on CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory by described network side, is assigned to by UESS in Enhanced PDCCH territory.
2. the method for claim 1, is characterized in that, for lte-a system, the transmission mode of carrying out the PDSCH of channel measurement and signal receiving based on CRS is transmission mode 1 ~ 6.
3. the method for claim 1, is characterized in that, for lte-a system, carries out channel measurement and be transmission mode 1 ~ 7 based on the transmission mode that the port 5 of UE-RS or CRS carry out the PDSCH of demodulation based on CRS.
4. the method for claim 1, is characterized in that, for lte-a system, the transmission mode of carrying out the PDSCH of channel measurement based on CRS is transmission mode 1 ~ 8.
5. determine a method of PDCCH, it is characterized in that, the method comprises:
The transmission mode of the corresponding PDSCH of subscriber equipment determination network side notice;
Described subscriber equipment, according to the transmission mode of corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory;
Described subscriber equipment, according to the transmission mode of corresponding PDSCH, determines PDCCH resource by one or more in following manner:
Mode one: if the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on CRS, described subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode two: if the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, described subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode three: if the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, described subscriber equipment determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode four: if the transmission mode of corresponding PDSCH does not carry out channel measurement and signal receiving based on CRS, described subscriber equipment determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in Enhanced PDCCH territory;
Mode five: if the transmission mode of corresponding PDSCH is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, described subscriber equipment determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in Enhanced PDCCH territory;
Mode six: if the transmission mode of corresponding PDSCH does not carry out channel measurement based on CRS, described subscriber equipment determines that corresponding CSS is in Legacy PDCCH territory, and UESS is in EnhancedPDCCH territory.
6. method as claimed in claim 5, it is characterized in that, for lte-a system, the transmission mode of carrying out the PDSCH of channel measurement and signal receiving based on CRS is transmission mode 1 ~ 6.
7. method as claimed in claim 5, is characterized in that, for lte-a system, carries out channel measurement and be transmission mode 1 ~ 7 based on the transmission mode that the port 5 of UE-RS or CRS carry out the PDSCH of demodulation based on CRS.
8. method as claimed in claim 5, it is characterized in that, for lte-a system, the transmission mode of carrying out the PDSCH of channel measurement based on CRS is transmission mode 1 ~ 8.
9. distribute a network equipment of PDCCH, it is characterized in that, this equipment comprises:
Notification module, for the transmission mode of the PDSCH corresponding to notifying user equipment;
Distribution module, for the transmission mode of the PDSCH corresponding to subscriber equipment, is the corresponding PDCCH resource of user equipment allocation;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory;
Described distribution module, the transmission mode of the PDSCH corresponding to described subscriber equipment is the corresponding PDCCH resource of user equipment allocation by the one in following manner:
Mode one: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement and signal receiving based on cell-level reference signal CRS, is assigned in Legacy PDCCH territory by the general search space CSS corresponding to described subscriber equipment and the exclusive search volume UESS of subscriber equipment;
Mode two: if the transmission mode of the PDSCH corresponding to described subscriber equipment is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of user-specific reference signal UE-RS or CRS, CSS and UESS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory;
Mode three: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement based on CRS, CSS and UESS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory;
Mode four: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement and signal receiving based on CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory, UESS is assigned in Enhanced PDCCH territory;
Mode five: if the transmission mode of the PDSCH corresponding to described subscriber equipment is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory, UESS is assigned in Enhanced PDCCH territory;
Mode six: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement based on CRS, the CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory, UESS is assigned in Enhanced PDCCH territory.
10. determine a subscriber equipment of PDCCH, it is characterized in that, this subscriber equipment comprises:
Transmission mode determination module, for determining the transmission mode of the PDSCH corresponding to network equipment notice;
Resource determination module, for the transmission mode according to corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory;
Described resource determination module, according to the transmission mode of corresponding PDSCH, determines PDCCH resource by one or more in following manner:
Mode one: if the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on CRS, determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode two: if the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, determine that corresponding CSS and UESS is in LegacyPDCCH territory;
Mode three: if the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode four: if the transmission mode of corresponding PDSCH does not carry out channel measurement and signal receiving based on CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in EnhancedPDCCH territory;
Mode five: if the transmission mode of corresponding PDSCH is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in Enhanced PDCCH territory;
Mode six: if the transmission mode of corresponding PDSCH does not carry out channel measurement based on CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in Enhanced PDCCH territory.
11. 1 kinds of systems determining PDCCH, it is characterized in that, this system comprises:
Network equipment, for the transmission mode of the PDSCH corresponding to notifying user equipment, the transmission mode of the PDSCH corresponding to subscriber equipment is the corresponding PDCCH resource of user equipment allocation;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory;
The transmission mode of the PDSCH corresponding to described subscriber equipment is the corresponding PDCCH resource of user equipment allocation by the one in following manner:
Mode one: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement and signal receiving based on cell-level reference signal CRS, is assigned in Legacy PDCCH territory by the general search space CSS corresponding to described subscriber equipment and the exclusive search volume UESS of subscriber equipment;
Mode two: if the transmission mode of the PDSCH corresponding to described subscriber equipment is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of user-specific reference signal UE-RS or CRS, CSS and UESS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory;
Mode three: if the transmission mode of the PDSCH corresponding to described subscriber equipment carries out channel measurement based on CRS, CSS and UESS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory;
Mode four: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement and signal receiving based on CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory, UESS is assigned in Enhanced PDCCH territory;
Mode five: if the transmission mode of the PDSCH corresponding to described subscriber equipment is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, CSS corresponding to described subscriber equipment is assigned in Legacy PDCCH territory, UESS is assigned in Enhanced PDCCH territory;
Mode six: if the transmission mode of the PDSCH corresponding to described subscriber equipment does not carry out channel measurement based on CRS, be assigned in Legacy PDCCH territory by the CSS corresponding to described subscriber equipment, is assigned in Enhanced PDCCH territory by UESS;
Subscriber equipment, for determining the transmission mode of the PDSCH corresponding to network equipment notice, according to the transmission mode of corresponding PDSCH, determines PDCCH resource;
Wherein, described PDCCH resource comprises Legacy PDCCH territory and Enhanced PDCCH territory;
According to the transmission mode of corresponding PDSCH, determine PDCCH resource by one or more in following manner:
Mode one: if the transmission mode of corresponding PDSCH carries out channel measurement and signal receiving based on CRS, determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode two: if the transmission mode of corresponding PDSCH is carried out channel measurement based on CRS and carries out demodulation based on the port 5 of UE-RS or CRS, determine that corresponding CSS and UESS is in LegacyPDCCH territory;
Mode three: if the transmission mode of corresponding PDSCH carries out channel measurement based on CRS, determines that corresponding CSS and UESS is in Legacy PDCCH territory;
Mode four: if the transmission mode of corresponding PDSCH does not carry out channel measurement and signal receiving based on CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in EnhancedPDCCH territory;
Mode five: if the transmission mode of corresponding PDSCH is not carried out channel measurement based on CRS and do not carry out demodulation based on the port 5 of UE-RS or CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in Enhanced PDCCH territory;
Mode six: if the transmission mode of corresponding PDSCH does not carry out channel measurement based on CRS, determine that corresponding CSS is in Legacy PDCCH territory, UESS is in Enhanced PDCCH territory.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110164810.7A CN102231913B (en) | 2011-06-17 | 2011-06-17 | A kind of method, system and equipment distributing and determine PDCCH |
| PCT/CN2012/073456 WO2012171395A1 (en) | 2011-06-17 | 2012-04-01 | Method, system, and device for allotting and determining pdcch |
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| CN201110164810.7A CN102231913B (en) | 2011-06-17 | 2011-06-17 | A kind of method, system and equipment distributing and determine PDCCH |
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| CN102231913B (en) * | 2011-06-17 | 2015-08-19 | 电信科学技术研究院 | A kind of method, system and equipment distributing and determine PDCCH |
| US9252918B2 (en) * | 2011-08-15 | 2016-02-02 | Google Technology Holdings LLC | Method and apparatus for control channel transmission and reception |
| CN102420685B (en) * | 2011-11-07 | 2014-08-06 | 电信科学技术研究院 | Method and device for transmitting control information |
| EP2779495B1 (en) | 2011-11-13 | 2021-03-24 | LG Electronics Inc. | Method and apparatus for transmitting control information in wireless communication system |
| CN109245873B (en) * | 2012-01-09 | 2022-01-14 | 华为技术有限公司 | Control channel transmission and receiving method, base station and user equipment |
| CN103220102B (en) * | 2012-01-21 | 2016-12-28 | 华为技术有限公司 | Control transmission method and the equipment of signaling |
| US9252861B2 (en) * | 2012-02-16 | 2016-02-02 | Panasonic Intellectual Property Corporation Of America | Receiver device, transmitter device, reception method, and transmission method |
| CN103298128B (en) * | 2012-02-23 | 2016-10-05 | 华为技术有限公司 | Random access processing method and equipment |
| JP6399728B2 (en) * | 2012-03-15 | 2018-10-03 | シャープ株式会社 | Base station apparatus, terminal apparatus, communication method, and integrated circuit |
| CN102624489B (en) * | 2012-03-20 | 2015-05-27 | 电信科学技术研究院 | Enhanced control channel transmission method, device and system |
| US9338773B2 (en) * | 2012-03-26 | 2016-05-10 | Qualcomm Incorporated | Common search space for EPDCCH in LTE |
| JP2013243460A (en) * | 2012-05-18 | 2013-12-05 | Sharp Corp | Terminal, base station, communication system, and communication method |
| CN104303568B (en) * | 2013-01-11 | 2019-03-08 | 华为技术有限公司 | The transmission method and equipment of dispatch |
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| CN101047954A (en) * | 2006-03-28 | 2007-10-03 | 中兴通讯股份有限公司 | Method for call setting request in PHS network |
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| CN101784081A (en) * | 2009-01-21 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for configuring downlink physical control channel, base station and terminal |
| CN101714892A (en) * | 2009-11-02 | 2010-05-26 | 中兴通讯股份有限公司 | Method and system for transmitting downlink control information |
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