CN102104866A - 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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- CN102104866A CN102104866A CN2010101646785A CN201010164678A CN102104866A CN 102104866 A CN102104866 A CN 102104866A CN 2010101646785 A CN2010101646785 A CN 2010101646785A CN 201010164678 A CN201010164678 A CN 201010164678A CN 102104866 A CN102104866 A CN 102104866A
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- 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) is 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, the LTE system and before wireless communication system in, have only a carrier wave in the sub-district, as shown in Figure 1, the maximum bandwidth in the 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, improves the performance of Cell Edge User, and improves cell capacity and reduce system delay.In addition, in the LTE system, UE (User Equipment, subscriber equipment) can only work under a carrier wave simultaneously, and a LTE sub-district has only a carrier wave, and each LTE sub-district is identified by a number unique in network.
And increasing rapidly along with the number of users of mobile terminal amount, terminal use's volume of business is exponential increase, in order to satisfy the terminal use's who continues to increase business demand, the business and the needed more peak value speed of application that need provide bigger bandwidth to satisfy the terminal use.In LTE-A (LTE-Advanced, senior LTE) system, the peak rate of system has huge raising than LTE, requirement reaches descending 1Gbps, up 500Mbps, at this moment, if only use the carrier wave of a maximum bandwidth, obviously be the requirement that can't reach peak rate as 20MHz.Therefore, the LTE-A system needs the operable bandwidth of terminal extension user, introduced CA (Carrier Aggregation thus, carrier aggregation) technology, be about to a plurality of continuous or discrete carrier aggregation (between sub-district under the different e NB or the member carrier can not polymerization) together under the same eNB (or base station), simultaneously for the UE service, so that UE to be provided required speed.Wherein, the above-mentioned carrier wave that condenses together is called CC (Component Carrier, member carrier) again, and each sub-district can be a member carrier, and the sub-district under the different e NB (member carrier) can not polymerization.In addition, in order to guarantee that the UE under the LTE can work under the carrier wave of each polymerization, each carrier wave maximum is no more than 20MHz when requiring carrier aggregation, as shown in Figure 2, be the carrier aggregation technology schematic diagram under a kind of LTE-A, as can be seen, have under the base station of LTE-A 4 can polymerization carrier wave, transfer of data can be carried out with UE simultaneously in the base station on 4 carrier waves, to improve throughput of system.
In the LTE system, down physical channel comprises: PDSCH (Physical Downlink SharedChannel, the physical layer shared channel), PBCH (Physical Broadcast Channel, physical layer broadcast channel), PMCH (Physical Multicast Channel, the 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, the PDCCH channel is mainly used in the dispatch of transmission at up-downgoing, the PDSCH channel is mainly used in downlink data transmission, in the ordinary course of things, existing PDCCH channel on the member carrier, the PDSCH channel is also arranged, and both divide by time domain, PDCCH as shown in Figure 3 and PDSCH channel schematic diagram.
In the LTE system, owing to have only a member carrier, then the PDCCH on CC can only dispatch the PDSCH on this CC.And for multicarrier system, can have following situation: the PDCCH on CC is contaminated (for example, serious interference on this PDCCH channel), at this moment, can stride carrier scheduling function in the last configuration of other DL (descending) CC, promptly the PDCCH on CC can dispatch the PDSCH on a plurality of DL CC.It should be noted that DLPDSCH CC of synchronization can only be by PDCCHCC scheduling, this scheduling concerns and is based on the semi-static configuration of CC.
PDCCH as shown in Figure 4 and the scheduling of PDSCH relation, for the contaminated or out of use DL CC of PDCCH, can be called PDSCH-only CC, in Fig. 4, PDSCH on the CC2 can not still can be dispatched by the PDCCH on the CC1 by the scheduling of the PDCCH on the CC2.
In multicarrier system, the base station can be a job of UE configuration carrier set according to all professional maximum rate sums of UE (User Equipment, subscriber equipment) request, is called for short configuration CC set.In CC set to the UE configuration, multicarrier system can be selected PCC (the primary component carrier of a CC as this UE based on UE, main carrier), and other CC that disposes in this carrier set be the SCC of this UE (secondary component carrier, auxilliary carrier wave).The PCC that it should be noted that different UEs may be different.
In addition, in the LTE-A system, the PCC of UE does not allow to activate or deexcitation, PCC gives tacit consent to always and activates, then giving tacit consent to after the SCC configuration in the configuration CC set is deexcitation, uses these SCC if desired, needs earlier SCC to be carried out the carrier wave activation manipulation.Because the business of UE may have fluctuation and sudden, be that traffic carrying capacity is seldom in certain period, and certain section interior traffic carrying capacity of time is very big, therefore, when the UE traffic carrying capacity is fewer, for better economize on electricity, needing further the CC in the configuration CC set to be carried out carrier wave according to the current service conditions of UE activates or deactivating operation, and for the carrier wave of deexcitation, UE does not need to monitor PDCCH again, thereby can reach better power savings.
In the prior art, stipulated the carrier wave in the multicarrier system is carried out the activation operation, can adopt explicit way and implicit expression mode.Wherein, explicit activation is promptly used carrier wave activation MAC CE (MAC control element, the media access control layer control unit), MAC CE uses bitmap (bit mapping) mode, and the corresponding CC of each bit (bit) is not (because PCC can be activated/deexcitation, the bit that independent correspondence can be arranged PCC, can not have yet), if certain bit is set to 0, then represent the CC of deexcitation correspondence, if certain bit is set to 1, then expression activates corresponding C C.The implicit expression deexcitation promptly utilizes deactivation timer (deexcitation timer), if deactivation timer is overtime, and the CC of then deexcitation correspondence.It should be noted that the carrier wave activation all at descending SCC, present up CC does not have the operation of carrier wave activation.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
In the process of carrier wave deexcitation, how PDCCH CC and PDSCH CC do not carry out mutual description when having the carrier wave deexcitation in the agreement at present.If a PDSCH CC is by deexcitation, and the search volume of the PDCCH CC of correspondence is not handled, then will inevitably cause unnecessary blind check and can cause unnecessary expense.
Summary of the invention
The embodiment of the 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 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 invention proposes a kind of user equipment (UE), comprising:
Acquisition module is used to obtain the state of activation of PDSCH CC;
Determination module, the state of activation that is used for the described PDSCH CC that obtains according to described acquisition module is determined the search volume of PDCCH CC.
Compared with prior art, the present invention has the following advantages at least:
Determine the search volume of PDCCH CC can in time adjust according to the state of activation of PDSCH CC, reduce the unnecessary PDCCH blind check number of times and the purpose of more effective economize on electricity to reach to the search volume.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram that has only a carrier wave in the prior art LTE system in sub-district;
Fig. 2 is the carrier aggregation technology schematic diagram under the prior art LTE-A;
Fig. 3 is PDCCH and a PDSCH channel schematic diagram in the prior art;
Fig. 4 is that the scheduling of PDCCH and PDSCH concerns schematic diagram in the prior art;
Fig. 5 is definite method flow schematic diagram of a kind of PDCCH CC search volume of providing of the embodiment of the 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 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 invention three;
Fig. 8 is the form schematic diagram of MAC CE in the embodiment of the 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 invention four;
Figure 10 is the form schematic diagram of MAC CE in the embodiment of the invention four;
Figure 11 is the corresponding relation schematic diagram of numbering each bit position and CC in the embodiment of the 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 invention five according to UE rank CC;
Figure 13 is the corresponding relation schematic diagram of numbering each bit position and CC in the embodiment of the invention five according to frequency from low to high;
Figure 14 is the corresponding relation schematic diagram of numbering each bit position and CC in the embodiment of the invention five according to frequency from high to low;
Figure 15 is a kind of user device architecture schematic diagram that the embodiment of the invention six provides.
Embodiment
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
In multicarrier system, in order to improve peak rate, UE can be operated on a plurality of member carriers, multicarrier system can be a job of UE configuration carrier set according to the Mean Speed sum of the business of UE request, and because the business of UE may have fluctuation and sudden, when the UE traffic carrying capacity is fewer,, can further carry out the carrier wave deactivating operation according to the current service conditions of UE for the carrier wave in the work carrier set of UE to configuration for better economize on electricity.Proposed then in the embodiment of the invention that a kind of PDCCH CC and PDSCH CC carry out exchange method when the deexcitation of multicarrier system carrier wave, and determined the search volume of PDCCH CC according to the state of activation of PDSCH CC.
The embodiment of the invention one provides a kind of PDCCH CC definite method of search volume, as shown in Figure 5, may further comprise the steps:
In the embodiment of the invention, described subscriber equipment obtains the state of activation of PDSCH CC, specifically comprise: described subscriber equipment receives the carrier wave activation MAC CE from network equipment, and obtains the state of activation of described PDSCH CC according to the indication information among the MACCE.
Obtain the state of activation of described PDSCH CC according to the indication information among the MAC CE, comprise: described subscriber equipment obtains the bit position of described PDSCH CC correspondence, when the bit position of described PDSCH CC correspondence was the deexcitation indication, the state of activation that described subscriber equipment obtains described PDSCH CC was deexcitation.
In addition, determine the search volume of PDCCH CC according to the state of activation of described PDSCH CC, comprise: when the state of activation of described PDSCH CC was deexcitation, described subscriber equipment carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on the described PDCCH CC.
Further, described subscriber equipment carries out blind check according to the search volume of the transmission mode correspondence on the PDSCHCC of the activation of described PDCCH CC and scheduling thereof to the control channel on the described PDCCH CC, comprise: when the search volume of described PDCCH CC and described PDSCH CC independent, when the control channel on the described PDCCH CC is carried out blind check, if detect the dispatch at the PDSCH CC of described deexcitation on PDCCH CC, described subscriber equipment is ignored the dispatch at described PDSCH CC.
In addition, in embodiments of the present invention, when MAC CE transmitted by the bitmap mode, the mapping relations of bit position and CC comprised: the CC numbering according to cell level is shone upon; Perhaps, shine upon based on other CC numbering of UE level; Perhaps, the frequency according to CC shines upon; Perhaps, adopt the corresponding relation of each bit position among signaling CC and the 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 the following operation:
Described subscriber equipment stops at and monitors PDCCH on the corresponding DL CC;
Described subscriber equipment terminates in and carries out the PDSCH reception on the corresponding DL CC;
If deexcitation timer operation is arranged on the described CC, then described subscriber equipment stops this timer;
Described subscriber equipment stops can only be by the uplink on the UL CC of described CC scheduling;
Described subscriber equipment stops carrying out descending CQI feedback at corresponding DL CC;
If certain UL CC can only be by described CC scheduling, SRS and/or PHR that then described subscriber equipment stops on this UL CC send.
As seen, the method that the application of the invention provides is determined the search volume of PDCCH CC can in time adjust the search volume according to the state of activation of PDSCH CC, reduces the unnecessary PDCCH blind check number of times and the purpose of more effective economize on electricity to reach.
For the technical scheme that illustrates that more clearly the embodiment of the invention provides, below definite method of PDCCH CC search volume that the embodiment of the 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.; need to prove; this network equipment is not limited to the said equipment; all equipment that are positioned at network side for convenience of description, are that example describes with the base station in the embodiment of the invention all within protection range of the present invention.
In the embodiment of the invention, the state of activation of PDSCH CC is specially the influence of PDCCH CC: if a PDSCH CC by deexcitation, need consider the influence to the search volume when then the PDCCH that can dispatch this PDSCH CC being carried out blind check.
Concrete, when the state of activation of PDSCH CC was deexcitation, subscriber equipment carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of PDCCH CC and scheduling thereof to the control channel on the PDCCH CC.Further, when the search volume of PDCCH CC and PDSCH CC independent, when the control channel on the PDCCH CC was carried out blind check, if detect dispatch at the PDSCH CC of deexcitation on PDCCH CC, subscriber equipment was ignored the dispatch at PDSCH CC.
Based on above-mentioned situation, in definite method of the PDCCH CC search volume that the embodiment of the invention two provides, as shown in Figure 6, may further comprise the steps:
Step 601, network equipment sends carrier wave activation MAC CE to UE.
Wherein, in this carrier wave activation MAC CE, can comprise the bit position of corresponding PDSCH CC, this bit position is changed to the deexcitation indication or activates indication.
Step 602, subscriber equipment are obtained the state of activation of PDSCH CC according to this carrier wave activation MAC CE.
Concrete, in carrier wave activation MAC CE, when the bit position of this PDSCH CC correspondence was changed to the deexcitation indication, the state of activation of then obtaining PDSCH CC was deexcitation; The bit position of this PDSCH CC correspondence is changed to when activating indication, and the state of activation of then obtaining PDSCH CC is for activating.For example, represent that when the bit position is 0 deexcitation indication, bit position are when representing to activate indication at 1 o'clock, then 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, and the state of activation of obtaining PDSCH CC is for activating.
Certainly, in actual applications, also can not carry the bit position of PDSCH CC correspondence among this carrier wave activation MAC CE, at this moment, subscriber equipment can also obtain the state of activation of PDSCHCC in other way, gives unnecessary details no longer in detail in the embodiment of the invention.
Step 603, when the state of activation of PDSCH CC was deexcitation, subscriber equipment was determined the search volume of PDCCH CC according to the state of activation of PDSCHCC.Promptly this subscriber equipment carries out blind check according to the search volume of PDCCH CC to the PDCCH that dispatches PDSCH CC.
Concrete, when the state of activation of PDSCH CC was deexcitation, subscriber equipment carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of PDCCH CC and scheduling thereof to the control channel on the PDCCH CC.Further, when the search volume of PDCCH CC and PDSCH CC independent, when the control channel on the PDCCH CC was carried out blind check, if detect dispatch at the PDSCH CC of deexcitation on PDCCH CC, subscriber equipment was ignored the dispatch at PDSCH CC.
Need to prove, when the state of activation of PDSCH CC is deexcitation, this subscriber equipment also needs this CC is carried out deactivating operation, and wherein, the operation of CC after by deexcitation comprises one or any several in the following operation at least: stop to monitor the PDCCH on this DL CC; If deexcitation timer operation is arranged on this CC, then stops this timer; Stop the PDSCH transmission (comprise and just pass and/or retransmit) on this DL CC; UL scheduling before ignoring on this DL CC (comprise and just pass and/or retransmit); Stop at CQI (Channel Quality Indicator, the channel quality indication) information of sending out this DL CC correspondence of feedback on the UL CC; If certain UL CC can only then be stopped SRS (Sounding Reference Signal, monitoring reference signal) and/or PHR (Powerheadroom, power headroom) and be sent by this DL CC scheduling on the Dui Ying UL CC.
In addition, in carrier wave activation MAC CE, can also adopt the bitmap mode, and when adopting the bitmap mode, the mapping relations of bit and CC can adopt any one in following several mode at least.
(1) shines upon according to the CC numbering of cell level, promptly all CC that support in the sub-district are unified numbering, the corresponding CC of each bit of carrier wave activation MAC CE.
(2) shine upon based on other CC of UE level numbering, promptly can polymerization or the unified numbering of CC of polymerization to UE, the corresponding CC of each bit of carrier wave activation MAC CE.
(3) frequency according to CC shines upon, from low to high or order from high to low promptly according to the CC frequency, and the corresponding CC of each bit of carrier wave activation MAC CE.
(4) corresponding relation of each bit among employing signaling CC and the carrier wave activation MAC CE.
It should be noted that concerning with PCC, can have that independently bit is corresponding with this PCC because PCC can not be activated/deexcitation, also can be less than independently bit is not corresponding with this PCC.
In order further to set forth the technical scheme that the embodiment of the invention provides, be described in detail below in conjunction with definite method of concrete application scenarios to the PDCCH CC search volume of embodiment of the invention proposition.Should be with under the 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 is owing to disturb and can not use, and CC1 has disposed and striden carrier scheduling function, and CC3 not configuration strides carrier scheduling function.In addition, suppose that the carrier wave activation MAC CE that adopts has three to reserve bit, 5 minimum bit are corresponding in order respectively 5 DL CC from the low level to a high position; " 0 " expression deexcitation among the activation MAC CE, " 1 " expression activates.
Based on above-mentioned application scenarios, the embodiment of the 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, this method may further comprise the steps:
Concrete, stride carrier dispatching although CC1 has disposed, owing to CC2 by deexcitation, then follow-up PDCCH on the CC1 being carried out in the process of blind check need not carry out blind check in the search volume of CC2 transmission mode correspondence.
The embodiment of the 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, this method may further comprise the steps:
Step 901, at T1 constantly, UE all normally carries out transfer of data on DL CC1, CC2, CC3.
Step 902, at T2 constantly, CC1 channel quality degrades or UE data volume reduce, network side decision deexcitation CC2, then the base station can send carrier wave activation MAC CE to UE, the form of this MACCE as shown in figure 10, lowest order is represented CC1, penultimate is represented CC2, and antepenulatimate is represented CC3.
Step 903, after UE received this carrier wave activation MAC CE, judgement should deexcitation CC2.
Step 904, UE need not carry out blind check in the independent corresponding search volume of CC2 when PDCCH carries out blind check on to CC1, when the overlapping part, if detect scheduling at CC2, then ignores this scheduling.
Concrete, stride carrier dispatching although on CC1, disposed, but because CC2 is by deexcitation, follow-up to CC1 on PDCCH when carrying out blind check, need not carry out blind check, if the overlapping part is arranged, if detect scheduling so at CC2 in the independent corresponding search volume of CC2, then ignore this scheduling, do not carry out any processing.
The embodiment of the 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 CC1/CC2/CC3/CC4/CC5 respectively.
According to cell level CC numbering, what these five CC were corresponding respectively is 1,3,2,4,5; According to UE rank CC numbering, these five CC are correspondence 1,3,5,4,2 respectively; According to frequency is respectively CC1/CC3/CC2/CC4/CC5 from low to high.
Based on above-mentioned situation, the bitmap form of carrier wave activation MAC CE comprises: (1) according to cell level CC numbering, then the corresponding relation of each bit position of carrier wave activation MAC CE and CC as shown in figure 11; (2) according to UE rank CC numbering, then the corresponding relation of each bit position of carrier wave activation MAC CE and CC as shown in figure 12; (3) number from low to high according to frequency, then the corresponding relation of each bit position of carrier wave activation MAC CE and CC as shown in figure 13; (4) number from high to low according to frequency, then the corresponding relation of each bit position of carrier wave activation MAC CE and CC as shown in figure 14.
Based on same inventive concept, a kind of subscriber equipment that the embodiment of the invention six provides as shown in figure 15, comprising:
Described acquisition module 11 specifically is used for, and receives the carrier wave activation MACCE from network equipment, and obtains the state of activation of described PDSCH CC according to the indication information among the MAC CE.
Described acquisition module 11 is further used for, and obtains the bit position of described PDSCH CC correspondence, and when the bit position of described PDSCH CC correspondence was the deexcitation indication, the state of activation of then obtaining described PDSCH CC was deexcitation.
Described determination module 12 specifically is used for, when the state of activation of described PDSCH CC is deexcitation, then the control channel on the described PDCCH CC is carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof.
Described determination module 12 is further used for, when the search volume of described PDCCH CC and described PDSCH CC independent, when the control channel on the described PDCCH CC is carried out blind check, if on PDCCH CC, detect dispatch, then ignore dispatch at described PDSCH CC at the PDSCH CC of described deexcitation.
When MAC CE transmitted by the bitmap mode, the mapping relations of bit position and CC comprised:
CC numbering according to cell level is shone upon; Perhaps,
Shine upon based on other CC numbering of UE level; Perhaps,
Frequency according to CC shines upon; Perhaps,
Adopt the corresponding relation of each bit position among signaling CC and the carrier wave deexcitation MAC CE.
In the embodiment of the invention, this subscriber equipment also comprises:
Described processing module specifically is used for carrying out a kind of of following operation or several arbitrarily:
Stop at and monitor PDCCH on the corresponding DL CC;
Terminate in and carry out the PDSCH reception on the corresponding DL CC;
If deexcitation timer operation is arranged on the described CC, then stops this timer;
Termination can only be by the uplink on the UL CC of described CC scheduling;
Termination is carried out descending CQI feedback at corresponding DL CC;
If certain UL CC can only be by described CC scheduling, the SRS and/or the PHR that then stop on this UL CC send.
Wherein, each module 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 a plurality of submodules.
As seen, the equipment that the application of the invention provides is determined the search volume of PDCCH CC can in time adjust the search volume according to the state of activation of PDSCH CC, reduces the unnecessary PDCCH blind check number of times and the purpose 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 present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (16)
1. definite method of a PDCCH CC search volume is characterized in that, 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.
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 wave activation MAC CE from network equipment, and obtains the state of activation of described PDSCH CC according to the indication information among the 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 among the MAC CE, comprising:
Described subscriber equipment obtains the bit position of described PDSCH CC correspondence, and when the bit position of described PDSCH CC correspondence was the deexcitation indication, the state of activation that described subscriber equipment obtains described PDSCH CC was deexcitation.
4. as each described method of claim 1-3, it is characterized in that, determine the search volume of PDCCH CC to comprise according to the state of activation of described PDSCH CC:
When the state of activation of described PDSCH CC was deexcitation, described subscriber equipment carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof to the control channel on the described PDCCH CC.
5. method as claimed in claim 4 is characterized in that, described subscriber equipment carries out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of described PDCCHCC and scheduling thereof to the control channel on the described PDCCH CC, comprising:
When the search volume of described PDCCH CC and described PDSCH CC independent, when the control channel on the described PDCCHCC is carried out blind check, if detect the dispatch at the PDSCH CC of described deexcitation on PDCCH CC, described subscriber equipment is ignored the dispatch at described PDSCH CC.
6. method as claimed in claim 3 is characterized in that, when MAC CE transmitted by the bitmap mode, the mapping relations of bit position and CC comprised:
CC numbering according to cell level is shone upon; Perhaps,
Shine upon based on other CC numbering of UE level; Perhaps,
Frequency according to CC shines upon; Perhaps,
Adopt the corresponding relation of each bit position among signaling CC and the carrier wave deexcitation MAC CE.
7. method as claimed in claim 3 is characterized in that, the state of activation that described subscriber equipment obtains described PDSCHCC is deexcitation, also comprises afterwards:
Described subscriber equipment carries out deexcitation according to the state of activation of described PDSCH CC to described CC.
8. method as claimed in claim 7 is characterized in that, described subscriber equipment carries out deexcitation according to the state of activation of described PDSCHCC to described CC, specifically comprises a kind of or several arbitrarily in the following operation:
Described subscriber equipment stops at and monitors PDCCH on the corresponding DL CC;
Described subscriber equipment terminates in and carries out the PDSCH reception on the corresponding DL CC;
If deexcitation timer operation is arranged on the described CC, then described subscriber equipment stops this timer;
Described subscriber equipment stops can only be by the uplink on the UL CC of described CC scheduling;
Described subscriber equipment stops carrying out descending CQI feedback at corresponding DL CC;
If certain UL CC can only be by described CC scheduling, SRS and/or PHR that then described subscriber equipment stops on this UL CC send.
9. a user equipment (UE) is characterized in that, comprising:
Acquisition module is used to obtain the state of activation of PDSCH CC;
Determination module, the state of activation that is used for the described PDSCH CC that obtains according to described acquisition module is determined the search volume of PDCCH CC.
10. UE as claimed in claim 9 is characterized in that,
Described acquisition module specifically is used for, and receives the carrier wave activation MACCE from network equipment, and obtains the state of activation of described PDSCH CC according to the indication information among the MAC CE.
11. UE as claimed in claim 10 is characterized in that,
Described acquisition module is further used for, and obtains the bit position of described PDSCH CC correspondence, and when the bit position of described PDSCH CC correspondence was the deexcitation indication, the state of activation of then obtaining described PDSCH CC was deexcitation.
12. as each described UE of claim 9-11, it is characterized in that,
Described determination module specifically is used for, when the state of activation of described PDSCH CC is deexcitation, then the control channel on the described PDCCH CC is carried out blind check according to the search volume of the transmission mode correspondence on the PDSCH CC of the activation of described PDCCH CC and scheduling thereof.
13. UE as claimed in claim 12 is characterized in that,
Described determination module is further used for, when the search volume of described PDCCH CC and described PDSCH CC independent, when the control channel on the described PDCCH CC is carried out blind check, if on PDCCH CC, detect dispatch, then ignore dispatch at described PDSCHCC at the PDSCH CC of described deexcitation.
14. UE as claimed in claim 11 is characterized in that, when MAC CE transmitted by the bitmap mode, the mapping relations of bit position and CC comprised:
CC numbering according to cell level is shone upon; Perhaps,
Shine upon based on other CC numbering of UE level; Perhaps,
Frequency according to CC shines upon; Perhaps,
Adopt the corresponding relation of each bit position among signaling CC and the carrier wave deexcitation MAC CE.
15. UE as claimed in claim 11 is characterized in that, also comprises:
Processing module is used for according to the state of activation of described PDSCH CC described CC being carried out deexcitation when the state of activation of described PDSCH CC is deexcitation.
16. UE as claimed in claim 15 is characterized in that,
Described processing module specifically is used for carrying out a kind of of following operation or several arbitrarily:
Stop at and monitor PDCCH on the corresponding DL CC;
Terminate in and carry out the PDSCH reception on the corresponding DL CC;
If deexcitation timer operation is arranged on the described CC, then stops this timer;
Termination can only be by the uplink on the UL CC of described CC scheduling;
Termination is carried out descending CQI feedback at corresponding DL CC;
If certain UL CC can only be by described CC scheduling, the SRS and/or the PHR that then stop on this UL CC send.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906244A (en) * | 2012-12-28 | 2014-07-02 | 电信科学技术研究院 | Method, system and device for information transmission |
| CN108352964A (en) * | 2015-11-06 | 2018-07-31 | 高通股份有限公司 | Search space and permission are designed in EMTC |
| CN108540985A (en) * | 2018-02-28 | 2018-09-14 | 北京邮电大学 | A kind of method that PDSCH is shared with PDCCH resource in NR systems |
| WO2019015457A1 (en) * | 2017-07-20 | 2019-01-24 | 维沃移动通信有限公司 | Blind detection parameter acquisition method, related device and system |
| CN110730465A (en) * | 2018-07-16 | 2020-01-24 | 普天信息技术有限公司 | Method for enhancing consistency of reconfiguration resources of LTE230 system |
| WO2021155790A1 (en) * | 2020-02-06 | 2021-08-12 | 维沃移动通信有限公司 | Method and device for monitoring search space |
| WO2022171085A1 (en) * | 2021-02-10 | 2022-08-18 | 维沃移动通信有限公司 | Search space group switching method and apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2010
- 2010-04-30 CN CN201010164678.5A patent/CN102104866B/en active Active
-
2011
- 2011-04-14 WO PCT/CN2011/072763 patent/WO2011134350A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| ERICSSON, ST-ERICSSON: "On PDCCH blind decoding and search spaces", 《3GPP TSG RAN WG1 MEETING #60BIS》 * |
| SAMSUNG: "DL CC activation using BITMAP", 《3GPP TSG-RAN2#69BIS MEETING》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906244A (en) * | 2012-12-28 | 2014-07-02 | 电信科学技术研究院 | Method, system and device for information transmission |
| WO2014101671A1 (en) * | 2012-12-28 | 2014-07-03 | 电信科学技术研究院 | Data transmission method, system and device |
| 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 |
| CN108352964B (en) * | 2015-11-06 | 2021-04-09 | 高通股份有限公司 | Designing search spaces and grants in EMTC |
| CN108352964A (en) * | 2015-11-06 | 2018-07-31 | 高通股份有限公司 | Search space and permission are designed in EMTC |
| US11197139B2 (en) | 2015-11-06 | 2021-12-07 | Qualcomm Incorporated | Reception of search spaces and grants in EMTC |
| US11496872B2 (en) | 2015-11-06 | 2022-11-08 | Qualcomm Incorporated | Search spaces and grants in eMTC |
| WO2019015457A1 (en) * | 2017-07-20 | 2019-01-24 | 维沃移动通信有限公司 | Blind detection parameter acquisition method, related device and system |
| CN109286968A (en) * | 2017-07-20 | 2019-01-29 | 维沃移动通信有限公司 | A kind of blind Detecting parameter acquiring method, relevant device and system |
| CN108540985A (en) * | 2018-02-28 | 2018-09-14 | 北京邮电大学 | A kind of method that PDSCH is shared with PDCCH resource in NR systems |
| CN108540985B (en) * | 2018-02-28 | 2021-02-05 | 北京邮电大学 | Method for sharing PDSCH and PDCCH resources in NR system |
| CN110730465A (en) * | 2018-07-16 | 2020-01-24 | 普天信息技术有限公司 | Method for enhancing consistency of reconfiguration resources of LTE230 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 |
| WO2021155790A1 (en) * | 2020-02-06 | 2021-08-12 | 维沃移动通信有限公司 | Method and device for monitoring search space |
| WO2022171085A1 (en) * | 2021-02-10 | 2022-08-18 | 维沃移动通信有限公司 | Search space group switching method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102104866B (en) | 2014-05-14 |
| WO2011134350A1 (en) | 2011-11-03 |
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