CN102104866B - Method and equipment for determining search space of PDCCH CC - Google Patents
Method and equipment for determining search space of PDCCH CC Download PDFInfo
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- CN102104866B CN102104866B CN201010164678.5A CN201010164678A CN102104866B CN 102104866 B CN102104866 B CN 102104866B CN 201010164678 A CN201010164678 A CN 201010164678A CN 102104866 B CN102104866 B CN 102104866B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Abstract
The embodiment of the invention discloses a method for determining a search space of a physical downlink control channel component carrier (PDCCH CC), which comprises that: user equipment acquires the activation state of a physical downlink shared channel component carrier (PDSCH CC), and determines the search space of the PDCCH CC according to the activation state of the PDSCH CC. In the embodiment of the invention, the method for determining the search space of the PDCCH CC according to the activation state of the PDSCH CC can regulate the search space in time so as to save power more effectively at the same time of reducing unnecessary PDCCH blind detection.
Description
Technical field
The present invention relates to communication technical field, relate in particular to definite method and apparatus of a kind of PDCCH CC search volume.
Background technology
LTE (Long Term Evolution, Long Term Evolution) be 3G (3rd Generation, third generation digital communication) evolution, LTE improves and has strengthened the aerial access technology of 3G, adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) as the standard of this LTE wireless network evolution.Wherein, LTE system and before wireless communication system in, in Yi Ge community, only have a carrier wave, as shown in Figure 1, the maximum bandwidth in LTE system is 20MHz; And under the spectral bandwidth of 20MHz, LTE can provide the peak rate of descending 100Mbit/s and up 50Mbit/s, improve the performance of Cell Edge User, and improve cell capacity and reduce system delay.In addition, in LTE system, UE (User Equipment, subscriber equipment) can only work simultaneously under a carrier wave, and Yi Ge LTE community only has a carrier wave, and each LTE community is identified by a number unique in network.
And increasing rapidly along with number of users of mobile terminal amount, terminal use's volume of business is exponential increase, in order to meet the terminal use's who continues to increase business demand, business and the needed more peak value speed of application that need to provide larger bandwidth to meet terminal use.At LTE-A (LTE-Advanced, senior LTE) in system, the peak rate of system has huge raising than LTE, requirement reaches descending 1Gbps, up 500Mbps, now, if only use the carrier wave that a maximum bandwidth is 20MHz, be obviously the requirement that cannot reach peak rate.Therefore, LTE-A system needs the operable bandwidth of terminal extension user, introduce thus CA (Carrier Aggregation, carrier aggregation) technology, by (between different e NBXia community or the member carrier can not polymerization) together of the multiple continuous or discrete carrier aggregation under same eNB (or base station), simultaneously for UE service, so that the required speed of UE to be provided.Wherein, the above-mentioned carrier wave condensing together is called again CC (Component Carrier, member carrier), and each community can be a member carrier, and different e NBXia community (member carrier) can not polymerization.In addition, in order to guarantee that the UE under LTE can work under the carrier wave of each polymerization, while requiring carrier aggregation, each carrier wave maximum is no more than 20MHz, as shown in Figure 2, for the carrier aggregation technology schematic diagram under a kind of LTE-A, can find out, under the base station of LTE-A, have 4 can polymerization carrier wave, transfer of data can be carried out with UE in base station simultaneously on 4 carrier waves, to improve throughput of system.
In LTE system, down physical channel comprises: PDSCH (Physical Downlink SharedChannel, physical layer shared channel), PBCH (Physical Broadcast Channel, physical layer broadcast channel), PMCH (Physical Multicast Channel, physical layer Multicast Channel), PCFICH (PhysicalControl Format Indicator Channel, physical layer control information format indication channel), PDCCH (Physical Downlink Control Channel, physical layer control channel), PHICH (PhysicalHybrid ARQ Indicator Channel, physical layer HARQ feeds back indicating channel).
In above-mentioned down physical channel, PDCCH channel is mainly used in the dispatch of transmission for up-downgoing, PDSCH channel is mainly used in downlink data transmission, in the ordinary course of things, existing PDCCH channel on a member carrier, also have PDSCH channel, both divide by time domain, PDCCH as shown in Figure 3 and PDSCH channel schematic diagram.
In LTE system, owing to only having a member carrier, the PDCCH on a CC can only dispatch the PDSCH on this CC.And for multicarrier system, can there is following situation: the PDCCH on a CC is contaminated (for example, serious interference on this PDCCH channel), now, can be in the upper configuration of other DL (descending) CC across carrier scheduling function, the PDCCH on a CC can dispatch the PDSCH on multiple DL CC.It should be noted that DLPDSCH CC of synchronization can only be dispatched by a PDCCHCC, this scheduling relation is based on the semi-static configuration of CC.
The scheduling relation of PDCCH as shown in Figure 4 and PDSCH, for PDCCH, contaminated or out of use DL CC, can be called PDSCH-only CC, in Fig. 4, PDSCH on CC2 can not be dispatched by the PDCCH on CC2, but can be dispatched by the PDCCH on CC1.
In multicarrier system, base station can be work carrier set of UE configuration according to the maximum rate sum of all business of UE (User Equipment, subscriber equipment) request, is called for short configuration CC set.In the CC set to UE configuration, multicarrier system can be selected PCC (the primary component carrier of a CC as this UE based on UE, main carrier), and configure the SCC that other CC in this carrier set is this UE (secondary component carrier, auxiliary carrier wave).The PCC that it should be noted that different UEs may be different.
In addition, in LTE-A system, the PCC of UE does not allow to activate or deexcitation, PCC gives tacit consent to and activates always, after SCC configuration in configuration CC set, acquiescence is deexcitation, if need to use these SCC, needs first SCC to be carried out to carrier activation operation.Because the business of UE may have fluctuation and sudden, be that in certain period, traffic carrying capacity is little, and traffic carrying capacity is very large in certain period, therefore, in the time that UE traffic carrying capacity is fewer, for better economize on electricity, need further the CC in configuration CC set to be carried out to carrier activation or deactivating operation according to the current service conditions of UE, and for the carrier wave of deexcitation, UE does not need to monitor PDCCH again, thereby can reach better power savings.
In prior art, stipulate the carrier wave in multicarrier system to carry out activation/deactivation operation, can adopt explicit way and implicit.Wherein, explicit activation/deactivation is used carrier activation/deexcitation MAC CE (MAC control element, media access control layer control unit), MAC CE uses bitmap (bit mapping) mode, the corresponding CC of each bit (bit) is (due to can not be activated/deexcitation of PCC, can there is the bit of independent correspondence to PCC, can not have) yet, if certain bit is set to 0, represent the CC that deexcitation is corresponding, if certain bit is set to 1, represent to activate corresponding CC.Implicit expression deexcitation utilizes deactivation timer (deexcitation timer), if deactivation timer is overtime, and CC corresponding to deexcitation.It should be noted that carrier activation/deexcitation is all for descending SCC, current up CC does not have carrier activation/deactivating operation.
Realizing in process of the present invention, inventor finds at least to exist in prior art following problem:
In the process of carrier wave deexcitation, while thering is no carrier wave deexcitation in agreement at present, how PDCCH CC and PDSCH CC carry out mutual description.If a PDSCH CC is deactivated, and the search volume of corresponding PDCCH CC is not processed, will inevitably causes unnecessary blind check and can cause unnecessary expense electricity.
Summary of the invention
The embodiment of the present invention provides a kind of PDCCH CC definite method and apparatus of search volume, with when the deexcitation of PDSCH CC carrier wave, determines the search volume of PDCCH CC according to the state of activation of PDSCH CC.
In order to achieve the above object, the embodiment of the present invention proposes definite method of a kind of PDCCH CC search volume, comprising:
Subscriber equipment obtains the state of activation of PDSCH CC, and determines the search volume of PDCCH CC according to the state of activation of described PDSCH CC.
The embodiment of the present invention proposes a kind of user equipment (UE), comprising:
Acquisition module, for obtaining the state of activation of PDSCH CC;
Determination module, determines the search volume of PDCCH CC for the state of activation of the described PDSCH CC that obtains according to described acquisition module.
Compared with prior art, the present invention at least has the following advantages:
Determine the search volume of PDCCH CC according to the state of activation of PDSCH CC, can adjust search volume in time, reduce unnecessary PDCCH blind check number of times and the object of more effective economize on electricity to reach.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram that only has a carrier wave in prior art LTE system Zhong Yige community;
Fig. 2 is the carrier aggregation technology schematic diagram under prior art LTE-A;
Fig. 3 is PDCCH and PDSCH channel schematic diagram in prior art;
Fig. 4 is that in prior art, the scheduling of PDCCH and PDSCH is related to schematic diagram;
Fig. 5 is definite method flow schematic diagram of a kind of PDCCH CC search volume of providing of the embodiment of the present invention one;
Fig. 6 is definite method flow schematic diagram of a kind of PDCCH CC search volume of providing of the embodiment of the present invention two;
Fig. 7 is definite method flow schematic diagram of a kind of PDCCH CC search volume of providing of the embodiment of the present invention three;
Fig. 8 is the form schematic diagram of MAC CE in the embodiment of the present invention three;
Fig. 9 is definite method flow schematic diagram of a kind of PDCCH CC search volume of providing of the embodiment of the present invention four;
Figure 10 is the form schematic diagram of MAC CE in the embodiment of the present invention four;
Figure 11 is the corresponding relation schematic diagram of numbering each bit position and CC in the embodiment of the present invention five according to cell level CC;
Figure 12 is the corresponding relation schematic diagram of numbering each bit position and CC in the embodiment of the present invention five according to UE rank CC;
Figure 13 is the corresponding relation schematic diagram of numbering from low to high each bit position and CC in the embodiment of the present invention five according to frequency;
Figure 14 is the corresponding relation schematic diagram of numbering from high to low each bit position and CC in the embodiment of the present invention five according to frequency;
Figure 15 is a kind of user device architecture schematic diagram that the embodiment of the present invention six provides.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In multicarrier system, in order to improve peak rate, UE can be operated on multiple member carriers, multicarrier system can be work carrier set of UE configuration according to the Mean Speed sum of the business of UE request, and because the business of UE may have fluctuation and sudden, in the time that UE traffic carrying capacity is fewer, for better economize on electricity, can further carry out carrier wave deactivating operation to the carrier wave in the work carrier set of UE according to the current service conditions of UE to configuration.In the embodiment of the present invention, proposed one in the time of the deexcitation of multicarrier system carrier wave, PDCCH CC and PDSCH CC carry out exchange method, and determine the search volume of PDCCH CC according to the state of activation of PDSCH CC.
The embodiment of the present invention one provides a kind of PDCCH CC definite method of search volume, as shown in Figure 5, comprises the following steps:
Step 501, subscriber equipment obtains the state of activation of PDSCH CC.
Step 502, subscriber equipment is determined the search volume of PDCCH CC according to the state of activation of described PDSCH CC.
In the embodiment of the present invention, described subscriber equipment obtains the state of activation of PDSCH CC, specifically comprise: described subscriber equipment receives the carrier activation/deexcitation MAC CE from network equipment, and obtain the state of activation of described PDSCH CC according to the indication information in MACCE.
Obtain the state of activation of described PDSCH CC according to the indication information in MAC CE, comprise: described subscriber equipment obtains the bit position that described PDSCH CC is corresponding, in the time that bit position corresponding to described PDSCH CC is deexcitation indication, the state of activation that described subscriber equipment obtains described PDSCH CC is deexcitation.
In addition, determine the search volume of PDCCH CC according to the state of activation of described PDSCH CC, comprise: in the time that the state of activation of described PDSCH CC is deexcitation, described subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on described PDCCH CC.
Further, described subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCHCC of the activation of described PDCCH CC and scheduling thereof to the control channel on described PDCCH CC, comprise: when independence of the search volume of described PDCCH CC and described PDSCH CC, when control channel on described PDCCH CC is carried out to blind check, if detect that on PDCCH CC described subscriber equipment is ignored the dispatch for described PDSCH CC for the dispatch of the PDSCH CC of described deexcitation.
In addition, in embodiments of the present invention, in the time that MAC CE transmits by bitmap mode, the mapping relations of bit position and CC comprise: shine upon according to the CC numbering of cell level; Or the CC numbering based on UE rank is shone upon; Or, shine upon according to the frequency of CC; Or, the corresponding relation of each bit position in employing signaling CC and carrier wave deexcitation MAC CE.
The state of activation that described subscriber equipment obtains described PDSCH CC is deexcitation, also comprises afterwards: described subscriber equipment carries out deexcitation according to the state of activation of described PDSCH CC to described CC.
Described subscriber equipment carries out deexcitation according to the state of activation of described PDSCH CC to described CC, specifically comprises a kind of or several arbitrarily in following operation:
Described subscriber equipment stops at monitoring PDCCH on corresponding DL CC;
Described subscriber equipment terminates on corresponding DL CC and carries out PDSCH reception;
If there is deexcitation timer operation on described CC, described subscriber equipment stops this timer;
Uplink on the UL CC that described subscriber equipment stops being dispatched by described CC;
Described subscriber equipment stops carrying out descending CQI feedback for corresponding DL CC;
If certain UL CC can only be dispatched by described CC, SRS and/or PHR that described subscriber equipment stops on this UL CC send.
The method visible, the application of the invention provides, determines the search volume of PDCCH CC according to the state of activation of PDSCH CC, can adjust search volume in time, reduces unnecessary PDCCH blind check number of times and the object of more effective economize on electricity to reach.
For the technical scheme that more clearly illustrates that the embodiment of the present invention provides, below definite method of PDCCH CC search volume that the embodiment of the present invention is proposed be described in detail.In embodiments of the present invention; network equipment includes but not limited to eNB (evolved Node B; evolved base station), Relay etc.; it should be noted that; this network equipment is not limited to the said equipment; all equipment that is positioned at network side all within protection range of the present invention, for convenience of description, in the embodiment of the present invention take base station as example describes.
In the embodiment of the present invention, the state of activation of PDSCH CC is specially the impact of PDCCH CC: if a PDSCH CC is deactivated, need to consider the impact on search volume to dispatching when the PDCCH of this PDSCH CC carries out blind check.
Concrete, in the time that the state of activation of PDSCH CC is deexcitation, subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of PDCCH CC and scheduling thereof to the control channel on PDCCH CC.Further, when independence of the search volume of PDCCH CC and PDSCH CC, when control channel on PDCCH CC is carried out to blind check, if detect that on PDCCH CC subscriber equipment is ignored the dispatch for PDSCH CC for the dispatch of the PDSCH CC of deexcitation.
Based on above-mentioned situation, in definite method of the PDCCH CC search volume that the embodiment of the present invention two provides, as shown in Figure 6, comprise the following steps:
Wherein, in this carrier activation/deexcitation MAC CE, can comprise the bit position of corresponding PDSCH CC, this bit position is set to deexcitation indication or activates indication.
Concrete, when in carrier activation/deexcitation MAC CE, when the bit position that this PDSCH CC is corresponding is set to deexcitation indication, the state of activation of obtaining PDSCH CC is deexcitation; The bit position that this PDSCH CC is corresponding is set to while activating indication, obtains the state of activation of PDSCH CC for activating.For example, represent deexcitation indication in the time that bit position is 0, bit position is within 1 o'clock, to represent to activate while indication, and subscriber equipment learns that this bit position is at 0 o'clock, and the state of activation of obtaining PDSCH CC is deexcitation; Subscriber equipment learns that this bit position is at 1 o'clock, obtains the state of activation of PDSCH CC for activating.
Certainly, in actual applications, in this carrier activation/deexcitation MAC CE, also can not carry the bit position that PDSCH CC is corresponding, now, subscriber equipment can also obtain the state of activation of PDSCHCC in other way, in the embodiment of the present invention, repeats no longer in detail.
Concrete, in the time that the state of activation of PDSCH CC is deexcitation, subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of PDCCH CC and scheduling thereof to the control channel on PDCCH CC.Further, when independence of the search volume of PDCCH CC and PDSCH CC, when control channel on PDCCH CC is carried out to blind check, if detect that on PDCCH CC subscriber equipment is ignored the dispatch for PDSCH CC for the dispatch of the PDSCH CC of deexcitation.
It should be noted that, in the time that the state of activation of PDSCH CC is deexcitation, this subscriber equipment also needs this CC to carry out deactivating operation, and wherein, the operation after CC is deactivated at least comprises one or any several in following operation: stop monitoring the PDCCH on this DL CC; If have deexcitation timer operation on this CC, stop this timer; Stop the PDSCH transmission (comprise and just pass and/or retransmit) on this DL CC; UL scheduling (comprise and just pass and/or retransmit) before ignoring on this DL CC; Stop at a CQI that this DL CC of feedback is corresponding on UL CC (Channel Quality Indicator, channel quality indication) information; If certain UL CC can only be dispatched by this DL CC, on corresponding UL CC, stop SRS (Sounding Reference Signal, monitoring reference signal) and/or PHR (Powerheadroom, power headroom) and send.
In addition, in carrier activation/deexcitation MAC CE, can also adopt bitmap mode, and in the time adopting bitmap mode, the mapping relations of bit and CC can at least adopt any one in following several mode.
(1) shine upon according to the CC numbering of cell level, all CC that support in Ji Dui community carry out Unified number, the corresponding CC of each bit of carrier activation/deexcitation MAC CE.
(2) the CC numbering based on UE rank is shone upon, can polymerization to UE or the CC Unified number of polymerization, and the corresponding CC of each bit of carrier activation/deexcitation MAC CE.
(3) shine upon according to the frequency of CC, according to CC frequency order from low to high or from high to low, the corresponding CC of each bit of carrier activation/deexcitation MAC CE.
(4) corresponding relation of each bit in employing signaling CC and carrier activation/deexcitation MAC CE.
It should be noted that concerning with PCC, due to can not be activated/deexcitation of PCC, can have that independently bit is corresponding with this PCC, also can independently bit be not corresponding with this PCC.
In order further to set forth the technical scheme that the embodiment of the present invention provides, definite method of the PDCCH CC search volume embodiment of the present invention being proposed below in conjunction with concrete application scenarios is described in detail.Under this application scene, suppose three DL CC of multicarrier system support, be designated as CC1, CC2, CC3, wherein CC1 and CC3 are PDCCH CC, CC2 is PDSCH-only CC, the PDCCH of this CC2 can not use owing to disturbing, and CC1 has configured across carrier scheduling function, and CC3 does not configure across carrier scheduling function.In addition, suppose that the carrier activation/deexcitation MAC CE adopting has three reserved bit, 5 minimum bit are difference corresponding 5 DL CC in order from low level to a high position; In activation/deactivation MAC CE, " 0 " represents deexcitation, and " 1 " represents to activate.
Based on above-mentioned application scenarios, the embodiment of the present invention three provides a kind of PDCCH CC definite method of search volume, in the present embodiment, supposes that the search volume of CC1 and CC2 is independent, and as shown in Figure 7, the method comprises the following steps:
Concrete, although CC1 has configured across carrier dispatching, because CC2 is deactivated, follow-uply carry out in the process of blind check at the PDCCH on CC1, need in search volume corresponding to CC2 transmission mode, not carry out blind check.
The embodiment of the present invention four provides a kind of PDCCH CC definite method of search volume, in the present embodiment, supposes that the search volume of CC1 and CC2 is not independent, and as shown in Figure 9, the method comprises the following steps:
Concrete, although configured on CC1 across carrier dispatching, but because CC2 is deactivated, follow-up to CC1 on PDCCH while carrying out blind check, need to not carry out blind check in the independent corresponding search volume of CC2, if there is overlapping part, if the scheduling for CC2 detected so, ignore this scheduling, do not carry out any processing.
The embodiment of the present invention five provides a kind of PDCCH CC definite method of search volume, and in the present embodiment, MAC CE adopts the mode of bitmap to transmit, and supposes 5 CC of UE polymerization, is designated as respectively CC1/CC2/CC3/CC4/CC5.
According to cell level CC numbering, these five CC are corresponding is respectively 1,3,2,4,5; According to UE rank CC numbering, these five CC correspondence 1,3,5,4,2 respectively; Respectively CC1/CC3/CC2/CC4/CC5 from low to high according to frequency.
Based on above-mentioned situation, the bitmap form of carrier activation/deexcitation MAC CE comprises: (1), according to cell level CC numbering, the corresponding relation of each bit position of carrier activation/deexcitation MAC CE and CC as shown in figure 11; (2) according to UE rank CC numbering, the corresponding relation of each bit position of carrier activation/deexcitation MAC CE and CC as shown in figure 12; (3) number from low to high according to frequency, the corresponding relation of each bit position of carrier activation/deexcitation MAC CE and CC as shown in figure 13; (4) number from high to low according to frequency, the corresponding relation of each bit position of carrier activation/deexcitation MAC CE and CC as shown in figure 14.
Based on same inventive concept, a kind of subscriber equipment that the embodiment of the present invention six provides, as shown in figure 15, comprising:
Acquisition module 11, for obtaining the state of activation of PDSCH CC;
Described acquisition module 11 specifically for, receive from carrier activation/deexcitation MACCE of network equipment, and obtain the state of activation of described PDSCH CC according to the indication information in MAC CE.
Described acquisition module 11 is further used for, and obtains the bit position that described PDSCH CC is corresponding, and in the time that bit position corresponding to described PDSCH CC is deexcitation indication, the state of activation of obtaining described PDSCH CC is deexcitation.
Described determination module 12 specifically for, in the time that the state of activation of described PDSCH CC is deexcitation, according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof, the control channel on described PDCCH CC is carried out to blind check.
Described determination module 12 is further used for, when independence of the search volume of described PDCCH CC and described PDSCH CC, when control channel on described PDCCH CC is carried out to blind check, if detect on PDCCH CC for the dispatch of the PDSCH CC of described deexcitation, ignore the dispatch for described PDSCH CC.
In the time that MAC CE transmits by bitmap mode, the mapping relations of bit position and CC comprise:
Shine upon according to the CC numbering of cell level; Or,
CC numbering based on UE rank is shone upon; Or,
Frequency according to CC shines upon; Or,
Adopt the corresponding relation of each bit position in signaling CC and carrier wave deexcitation MAC CE.
In the embodiment of the present invention, this subscriber equipment also comprises:
Described processing module is specifically for carrying out a kind of or several arbitrarily in following operation:
Stop at monitoring PDCCH on corresponding DL CC;
Terminate on corresponding DL CC and carry out PDSCH reception;
If have deexcitation timer operation on described CC, stop this timer;
Uplink on the UL CC that termination can only be dispatched by described CC;
Stop carrying out descending CQI feedback for corresponding DL CC;
If certain UL CC can only be dispatched by described CC, the SRS and/or the PHR that stop on this UL CC send.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
The equipment visible, the application of the invention provides, determines the search volume of PDCCH CC according to the state of activation of PDSCH CC, can adjust search volume in time, reduces unnecessary PDCCH blind check number of times and the object of more effective economize on electricity to reach.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (14)
1. a definite method for PDCCH CC search volume, is characterized in that, comprising:
Subscriber equipment obtains the state of activation of PDSCH CC, in the time that the state of activation of described PDSCH CC is deexcitation, described subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on described PDCCH CC.
2. the method for claim 1, is characterized in that, described subscriber equipment obtains the state of activation of PDSCH CC, specifically comprises:
Described subscriber equipment receives the carrier activation/deexcitation MAC CE from network equipment, and obtains the state of activation of described PDSCH CC according to the indication information in MAC CE.
3. method as claimed in claim 2, is characterized in that, obtains the state of activation of described PDSCH CC according to the indication information in MAC CE, comprising:
Described subscriber equipment obtains the bit position that described PDSCH CC is corresponding, and in the time that bit position corresponding to described PDSCH CC is deexcitation indication, the state of activation that described subscriber equipment obtains described PDSCH CC is deexcitation.
4. the method for claim 1, is characterized in that, described subscriber equipment carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on described PDCCH CC, comprising:
When independence of the search volume of described PDCCH CC and described PDSCH CC, when control channel on described PDCCH CC is carried out to blind check, if detect that on PDCCH CC described subscriber equipment is ignored the dispatch for described PDSCH CC for the dispatch of the PDSCH CC of described deexcitation.
5. method as claimed in claim 3, is characterized in that, in the time that MAC CE transmits by bitmap mode, the mapping relations of bit position and CC comprise:
Shine upon according to the CC numbering of cell level; Or,
CC numbering based on UE rank is shone upon; Or,
Frequency according to CC shines upon; Or,
Adopt the corresponding relation of each bit position in signaling CC and carrier wave deexcitation MAC CE.
6. method as claimed in claim 3, is characterized in that, the state of activation that described subscriber equipment obtains described PDSCH CC is deexcitation, also comprises afterwards:
Described subscriber equipment carries out deexcitation according to the state of activation of described PDSCH CC to described CC.
7. method as claimed in claim 6, is characterized in that, described subscriber equipment carries out deexcitation according to the state of activation of described PDSCH CC to described CC, specifically comprises a kind of or several arbitrarily in following operation:
Described subscriber equipment stops at monitoring PDCCH on corresponding DL CC;
Described subscriber equipment terminates on corresponding DL CC and carries out PDSCH reception;
If there is deexcitation timer operation on described CC, described subscriber equipment stops this timer;
Uplink on the UL CC that described subscriber equipment stops being dispatched by described CC;
Described subscriber equipment stops carrying out descending CQI feedback for corresponding DL CC;
If certain UL CC can only be dispatched by described CC, SRS and/or PHR that described subscriber equipment stops on this UL CC send.
8. a user equipment (UE), is characterized in that, comprising:
Acquisition module, for obtaining the state of activation of PDSCH CC;
Determination module, in the time that the state of activation of described PDSCH CC is deexcitation, carries out blind check according to search volume corresponding to the transmission mode on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on described PDCCH CC.
9. UE as claimed in claim 8, is characterized in that,
Described acquisition module specifically for, receive from carrier activation/deexcitation MAC CE of network equipment, and obtain the state of activation of described PDSCH CC according to the indication information in MAC CE.
10. UE as claimed in claim 9, is characterized in that,
Described acquisition module is further used for, and obtains the bit position that described PDSCH CC is corresponding, and in the time that bit position corresponding to described PDSCH CC is deexcitation indication, the state of activation of obtaining described PDSCH CC is deexcitation.
11. UE as claimed in claim 8, is characterized in that,
Described determination module is further used for, when independence of the search volume of described PDCCH CC and described PDSCH CC, when control channel on described PDCCH CC is carried out to blind check, if detect on PDCCH CC for the dispatch of the PDSCH CC of described deexcitation, ignore the dispatch for described PDSCH CC.
12. UE as claimed in claim 10, is characterized in that, in the time that MAC CE transmits by bitmap mode, the mapping relations of bit position and CC comprise:
Shine upon according to the CC numbering of cell level; Or,
CC numbering based on UE rank is shone upon; Or,
Frequency according to CC shines upon; Or,
Adopt the corresponding relation of each bit position in signaling CC and carrier wave deexcitation MAC CE.
13. UE as claimed in claim 10, is characterized in that, also comprise:
Processing module, in the time that the state of activation of described PDSCH CC is deexcitation, carries out deexcitation according to the state of activation of described PDSCH CC to described CC.
14. UE as claimed in claim 13, is characterized in that,
Described processing module is specifically for carrying out a kind of or several arbitrarily in following operation:
Stop at monitoring PDCCH on corresponding DL CC;
Terminate on corresponding DL CC and carry out PDSCH reception;
If have deexcitation timer operation on described CC, stop this timer;
Uplink on the UL CC that termination can only be dispatched by described CC;
Stop carrying out descending CQI feedback for corresponding DL CC;
If certain UL CC can only be dispatched by described CC, the SRS and/or the PHR that stop on this UL CC send.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010164678.5A CN102104866B (en) | 2010-04-30 | 2010-04-30 | Method and equipment for determining search space of PDCCH CC |
| PCT/CN2011/072763 WO2011134350A1 (en) | 2010-04-30 | 2011-04-14 | Method and device for determining search spaces on physical downlink control channel component carrier |
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| CN201010164678.5A CN102104866B (en) | 2010-04-30 | 2010-04-30 | Method and equipment for determining search space of PDCCH CC |
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| CN103906244B (en) * | 2012-12-28 | 2017-09-29 | 电信科学技术研究院 | A kind of method of information transfer, system and equipment |
| US11496872B2 (en) | 2015-11-06 | 2022-11-08 | Qualcomm Incorporated | Search spaces and grants in eMTC |
| US10326578B2 (en) | 2017-02-13 | 2019-06-18 | At&T Intellectual Property I, L.P. | Early termination scheme for blind decoding of a downlink control channel |
| CN109286968B (en) * | 2017-07-20 | 2020-07-28 | 维沃移动通信有限公司 | Blind detection parameter acquisition method, related equipment and system |
| CN108540985B (en) * | 2018-02-28 | 2021-02-05 | 北京邮电大学 | Method for sharing PDSCH and PDCCH resources in NR system |
| CN110730465B (en) * | 2018-07-16 | 2022-12-27 | 普天信息技术有限公司 | Method for enhancing consistency of reconfiguration resources of LTE230 system |
| CN113225751B (en) * | 2020-02-06 | 2023-05-05 | 维沃移动通信有限公司 | Monitoring method and device for search space |
| CN114915987A (en) * | 2021-02-10 | 2022-08-16 | 维沃移动通信有限公司 | Search space group switching method and device |
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| CN101699901A (en) * | 2009-09-28 | 2010-04-28 | 上海华为技术有限公司 | Method and device for optimizing search space of user equipment |
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| CN101699901A (en) * | 2009-09-28 | 2010-04-28 | 上海华为技术有限公司 | Method and device for optimizing search space of user equipment |
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| CN102104866A (en) | 2011-06-22 |
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