CN102801503A - Control channel mapping and detection methods and devices - Google Patents

Control channel mapping and detection methods and devices Download PDF

Info

Publication number
CN102801503A
CN102801503A CN2012103253258A CN201210325325A CN102801503A CN 102801503 A CN102801503 A CN 102801503A CN 2012103253258 A CN2012103253258 A CN 2012103253258A CN 201210325325 A CN201210325325 A CN 201210325325A CN 102801503 A CN102801503 A CN 102801503A
Authority
CN
China
Prior art keywords
control channel
signaling length
member carrier
space
initial ranging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012103253258A
Other languages
Chinese (zh)
Other versions
CN102801503B (en
Inventor
薛丽霞
曲秉玉
官磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201210325325.8A priority Critical patent/CN102801503B/en
Publication of CN102801503A publication Critical patent/CN102801503A/en
Application granted granted Critical
Publication of CN102801503B publication Critical patent/CN102801503B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention relates to control channel mapping and detection methods and devices. The control channel mapping method comprises the following steps: for the same polymerization level, determining corresponding search space for at least two control channels with the same signalling length according to the signalling lengths of the control channels corresponding to component carriers to ensure the at least two control channels with the same signalling length to use the same search space and mapping the at least two control channels with the same signalling length to the determined corresponding search space; and/or determining corresponding search space for at least two control channels with different signalling lengths respectively to ensure the at least two control channels with different signalling lengths in at least one time transmission unit to use different search space and mapping the at least two control channels with different signalling lengths to the determined corresponding search space respectively. According to the embodiment, not only can the conflicts of the control channels be reduced but also the control channel blind detection frequency can be reduced.

Description

The method and apparatus that the method for control channel mapping, control channel detect
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method of control channel mapping, the method and apparatus that control channel detects.
Background technology
Terrestrial wireless inserts (Evolved Universal Terrestrial Radio Access in the 3GPP evolution whole world; Be called for short: E-UTRA) in the communication system; Subscriber equipment (User Equipment; Be called for short: the UE) transmission of physical data channel needs this UE of scheduling assignment instruction notification through system.These scheduling assignment instructions are normally through Physical Downlink Control Channel (Physical Downlink Control Channel; Be called for short: PDCCH) carry; Wherein the scheduling assignment instruction for example is corresponding to Physical Downlink Shared Channel (Physical Downlink Shared Channel; Be called for short: descending scheduling PDSCH) grants (DL_grant) and (Physical Uplink Share Channel, be called for short: uplink scheduling PUSCH) is granted (UL_grant) corresponding to Physical Uplink Shared Channel.
At LTE FDD (Frequency Division Duplex; Be called for short: FDD) in the system; UE and network side can only carry out the transmission of data through a pair of uplink and downlink member carrier; PDCCH comprises DL_grant and two kinds of scheduling of UL_grant indication signaling, specifically is used to indicate the scheduling of this member carrier to the corresponding downlink or uplink physical data channel resource of last UE.Yet; After the LTE-Advanced system introduces carrier aggregation technology; UE and network side can be simultaneously in the transmission of a plurality of member carriers or member carrier to enterprising line data; And the dispatch of the data channel that each member carrier is corresponding is an absolute coding, and the scheduling of resource signaling on each member carrier all needs a PDCCH like this.
In carrier aggregation system, can on each member carrier, all transmit the corresponding PDCCH of UE, be used to dispatch the PDSCH of this UE on this member carrier or the transmission of the PUSCH corresponding with this member carrier.Also can be the PDCCH of this UE of transmission on or several member carrier.At this moment PDCCH not only can indicate the transmission of the downlink member carrier and the data channel on the corresponding uplink member carrier at its place, but also can indicate with its not on the same downlink member carrier or be not the transmission of data channel on the corresponding up paired member carrier.
For a UE; When the corresponding PDCCH of a plurality of member carriers transmits on a member carrier or on less several member carriers; Because control channel corresponding search space limited size so the probability that bumps between the control channel is very big, possibly cause the part PDCCH of this UE to be scheduled; Thereby cause the partial data of this UE to be transmitted, reduce the throughput of UE.
Summary of the invention
The embodiment of the invention provides a kind of method of control channel mapping, the method and apparatus that control channel detects, so that the probability that control channel bumps reduces.
The method of a kind of control channel mapping that the embodiment of the invention provides comprises:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two identical signaling length is confirmed the corresponding search space; Make the control channel of said at least two identical signaling length use identical search volume, the control channel of said at least two identical signaling length is mapped to definite corresponding search space; And/or
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two different signaling length is confirmed the corresponding search space respectively; Make at the control channel of at least two different signaling length described at least one time transmission unit and use different search volumes, the control channel of said at least two different signaling length is mapped to definite corresponding search space respectively.
The method that a kind of control channel that the embodiment of the invention provides detects comprises:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two identical signaling length is confirmed the corresponding search space; Make the control channel of said at least two identical signaling length use identical search volume, in the said identical search volume of confirming, detect the control channel of the signaling length that said identical search volume comprises; And/or
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two different signaling length is confirmed the corresponding search space respectively; Make at the control channel of at least two different signaling length described at least one time transmission unit and use different search volumes, in the said different search volume of confirming, detect the control channel of the signaling length that said different search volume comprises respectively.
A kind of transmitter that the embodiment of the invention also provides comprises:
First processing module and/or second processing module, wherein,
Said first processing module comprises: the first search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first mapping block, be used for the control channel of said at least two identical signaling length is mapped to the corresponding search space that the said first search volume determination module is confirmed;
Said second processing module comprises: the second search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second mapping block, be used for the control channel of said at least two different signaling length is mapped to the corresponding search space that the said second search volume determination module is confirmed respectively.
A kind of receiving equipment that the embodiment of the invention also provides comprises:
First processing module and/or second processing module, wherein,
Said first processing module comprises: the first search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first detection module, be used in the said identical search volume that the said first search volume determination module is confirmed, detect the control channel of the signaling length that said identical search volume comprises;
Said second processing module comprises: the second search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second detection module, be used in the said different search volume of confirming at the said second search volume determination module, detect the control channel of the signaling length that said different search volume comprises respectively.
Description through technique scheme can be known; Various embodiments of the present invention are through the flexible configuration search volume; Make for same polymerization level; Confirm own corresponding search space respectively for the control channel of at least two different signaling length, make this search volume of confirming different at least one time transmission unit, thereby the control channel corresponding search space of realizing these at least two different signaling length is different; Reduced the probability of the corresponding control channel collision of the control channel of these at least two different signaling length; The control channel that has guaranteed the UE subscriber equipment can be by effective scheduling and transmission, and then has guaranteed the respectively smooth transmission of the data of this UE subscriber equipment, improves the throughput of subscriber equipment; Preferably; On the other hand; Can be through the embodiment of the invention so that the control channel of at least two identical signaling length uses identical search volume; Increase the transmission flexibility of the corresponding identical signaling length control channel of different members carrier wave, reduced the probability of the control channel collision of these at least two kinds identical signaling length.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the 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 property, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic flow sheet of the method for the control channel mapping that Fig. 1 provides for the embodiment of the invention one;
Fig. 2 a is a kind of sketch map of the method for the control channel mapping that provides of the embodiment of the invention two;
Fig. 2 b is the another kind of sketch map of the method for the control channel mapping that provides of the embodiment of the invention two;
The another kind of sketch map of the method for the control channel mapping that Fig. 3 provides for the embodiment of the invention two;
The sketch map of method is confirmed in the control channel search volume in the method for the control channel mapping that Fig. 4 provides for the embodiment of the invention two;
The flow chart of the method that the control channel that Fig. 5 provides for the embodiment of the invention three detects;
The structural representation of the transmitter that Fig. 6 provides for the embodiment of the invention four;
The structural representation of the receiving equipment that Fig. 7 provides for the embodiment of the invention five.
Embodiment
For make the object of the invention, technical scheme, and advantage clearer, below in conjunction with the accompanying drawing embodiment that develops simultaneously, technical scheme provided by the invention is described in further detail.Obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
3GPP E-UTRA system claims that also (Long Term Evolution is called for short: LTE) system Long Term Evolution.In the LTE system, to the variable various bandwidth of 20M (100RB), wherein RB is Resource Block (Resource Block from 1.4M (6RB) in support; Be called for short: RB).For any system bandwidth, each time transmission unit such as subframe in, physical layer PDCCH takies certain resource on time domain and frequency domain, and system assignment to give the running time-frequency resource of PDCCH also be transformable.Particularly, PDCCH takies all available sub-carrier resources on frequency domain.But attend system in time domain and adopt physical layer control format indicating channel (Physical control format indicator channel; Be called for short: the PCFICH) indication of the control format in the channel (control format indicator; Be called for short: the CFI) time-domain resource that takies of value flexible configuration PDCCH; Promptly adopt OFDM (Orthogonal Frequency Division Multiplexing; Be called for short: the OFDM) number of symbol; Adopt 2 bits to represent the situation of the number of three kinds of different OFDM symbols in the system, for example: three kinds of situation of 1,2,3 the OFDM symbol of system bandwidth during, or three kinds of situation of 2,3,4 the OFDM symbol situation of system bandwidth during smaller or equal to 10RB greater than 10RB.The running time-frequency resource (number of sub-carrier resources, OFDM symbol) of distributing to PDCCH is divided into a plurality of control channels unit (Control Channel Element; Be called for short: CCE); And CCE is a minimum unit of forming the PDCCH running time-frequency resource; The running time-frequency resource that PDCCH takies has 4 kinds of polymerization levels; Correspond respectively to and take 1,2,4 and 8 CCE, select suitable polymerization level (corresponding different coding speed) to transmit the PDCCH of this subscriber equipment according to channel quality status, the system of subscriber equipment.
In the LTE system; The physical layer PDCCH of all subscriber equipmenies shares in each time transmission unit; Subscriber equipment utilizes self specific scrambler that the possibility of any transformat of PDCCH is carried out blind Detecting in set search volume, gentle position of polywater of the running time-frequency resource CCE that detect various possible control channel information length, takies etc.In order to reduce subscriber equipment carries out blind Detecting in the control channel zone number of times, defined the transmission mode that adopts in subscriber equipment a period of time, and planned the search volume.A kind of transmission mode that subscriber equipment possibly adopt in a period of time is through the subscriber equipment of the semi-static notice of proprietary signaling; Downlink transfer has 7 kinds of patterns in the LTE system; Every kind of transmission mode is in requisition for detecting two kinds of PDCCH forms, and the concrete PDCCH form of subscriber equipment is confirmed through blind Detecting in the search volume.Wherein the search volume is that subscriber equipment receives control channel and carries out blind Detecting in this space according to one section running time-frequency resource in logic of CCE definition.The search volume is divided into common search space and the specific search volume of subscriber equipment, and wherein the common search space is meant that all subscriber equipmenies that are in connection status and needs detection PDCCH all need carry out the search volume of blind Detecting; The specific search volume of subscriber equipment is meant that only this subscriber equipment need carry out the PDCCH blind Detecting in this specific search volume.In the specific search volume of subscriber equipment; The CCE of some forms a search volume; Wherein stipulate in the agreement in the 4 kinds of horizontal corresponding search of polymerization spaces, amounts to 4 kinds of corresponding space sizes of polymerization level with 1,2,4 and 8 CCE and be respectively 6,6,2 and 2.Only if the special common search space of mentioning mainly is mapping and the detection method to the control channel in the specific search volume of subscriber equipment in the embodiment of the invention.
When the emission of subscriber equipment of system call or when receiving data, the PDCCH that will be used to dispatch indication can be in this subscriber equipment specific search volume or enterprising row mapping of certain the CCE polymerization level in the common search space and emission.This subscriber equipment need receive and blind Detecting in possible PDCCH mapping and particular search space of transmitting or common search space simultaneously; If subscriber equipment passes through CRC (Cyclical Redundancy Check to the signaling data that detects; Be called for short: CRC) verification, explain that detected PDCCH is that system sends to this subscriber equipment.Subscriber equipment is resolved this PDCCH according to the signaling format of normalized definition, confirms that this subscriber equipment need receive or the running time-frequency resource position of launch of data channels.Then, subscriber equipment is accomplished reception, the emission of data, and the realization subscriber equipment is communicated by letter with system.
Further evolution and the senior Long Term Evolution of enhanced system (Long Term Evolution-Advanced in the LTE system; Be called for short: LTE-Advanced) in the system; Carrier aggregation (Carrier Aggregation) technology is used for supporting wideer bandwidth, with satisfy International Telecommunications Union for the 4th generation the communication technology the peak data rate requirement.In the carrier aggregation, the frequency spectrum of two or more member carriers (Component Carrier) is grouped together in together to obtain the LTE-Advanced system of wideer transmission bandwidth.It is compatible that wherein each member carrier all possibly be configured to the LTE system, and the frequency spectrum of each member carrier can be adjacent continuous frequency spectrum, also can be non-conterminous frequency spectrum or even the discontinuous spectrum in the different frequency bands in the identical frequency band.The LTE subscriber equipment can only insert wherein a pair of compatible member carrier and carry out data transmit-receive, carries out data transmit-receive and the LTE-Advanced subscriber equipment can insert a plurality of member carriers simultaneously according to ability and business demand.Carrier aggregation technology also is spectrum aggregating (Spectrum Aggregation) technology, or bandwidth expansion (Bandwidth Extension) technology.
In the LTE-Advanced system, can two or more a plurality of member carrier be dispatched to a subscriber equipment simultaneously and use, be used for the up or downlink business of transmission user equipment simultaneously.In the carrier aggregation technology; Each member carrier has and independently mixes automatic repeat requests (Hybrid-ARQ; Be called for short: HARQ) process, and system can be for the LTE-Advanced user device configuration the identical or member carrier of different numbers, be used to transmit data channel or control channel.Can on each member carrier, all transmit the PDCCH of this subscriber equipment; Be used to dispatch this member carrier downlink traffic channel PDSCH or the reverse link traffic channel PUSCH corresponding with this member carrier; At this moment; The data channel of control channel PDCCH and its scheduling can be on same member carrier, also can be on the paired member carrier of the up-downgoing of correspondence; In addition; Also can be on one or several member carrier all PDCCH of this subscriber equipment of transmission; Be used to dispatch PDSCH or the PUSCH that this subscriber equipment transmits on the up or descending member carrier of all scheduling; The data channel of this moment control channel and its scheduling can also can not be the corresponding paired member carrier of up-downgoing not at same member carrier, and the data channel that is called control channel and its scheduling separates.
In heterogeneous network system; Use the carrier-in-interference coordination system between the member carrier of different system; Or strengthen the control channel transmission performance; Select to disturb less carrier wave as the carrier wave that carries control channel, or coordinate the control signaling covering problem of different system, avoid subscriber equipment frequent handoff procedure between a plurality of member carriers of same sub-district.For example: in family's service system (Home NodeB), because the subscriber equipment of supporting is less, the control channel demand is also less, even an interior Signed Domination channel resource of member carrier just can satisfy the demands.Other member carrier can be specifically designed to the transmission data, improves the speed of data, also can coordinate to select to disturb less member carrier to carry control channel with macrocell simultaneously.Multicast communication/reception (Coordinated Multipoint Transmission/Reception at collaboration type; Be called for short: CoMP) in the system, two or more sub-districts or access point give same subscriber equipment at different member carrier transmitting datas, but control channel can only be launched on the part member carrier of Serving cell.When the uplink service of LTE-Advanced subscriber equipment is bigger than the downlink business demand; For the downlink member carrier number of this user device configuration may be less than the uplink member carrier number; Be bound to exist a downlink member carrier to launch the corresponding a plurality of up PUSCH channel of a plurality of PDCCH scheduling, can avoid receiving data on the unnecessary downlink member carrier of subscriber equipment.When the member carrier bandwidth of polymerization does not wait; Especially there is part member carrier bandwidth hour; Some the time; The PDCCH that is used for data dispatching on this member carrier is limited, and the resource of data channel also has residue, can the PDCCH of this little bandwidth carrier data transmission of scheduling be transmitted on other carrier waves.
Following each embodiment of the present invention is that example describes with the LTE-Advanced system; But be not limited to the LTE-Advanced system; Can also be applicable to other system; For example WCDMA inserts that (Wideband Code Division Multiple Access is called for short: WCDMA) system, perhaps LTE system etc.
As shown in Figure 1, the schematic flow sheet of the method that the control channel that provides for the embodiment of the invention one shines upon, this method may further comprise the steps:
Step 11, for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume.
Step 12, the control channel of said at least two identical signaling length is mapped to definite corresponding search space.
Transmitter is mapped to control channel in the search volume of confirming according to signaling length, and wherein transmitter for example does, the network equipments such as base station of networking side.
In the present embodiment, can also comprise the step that the control channel that is mapped in the search volume is launched after the step 12.
Wherein, make the control channel of at least two identical signaling length use identical search volume, specifically comprise: make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume.
Above-mentioned step 11 and step 12 are the method under the situation of one or more member carriers control channel of having at least two identical signaling length; When existing one or more member carriers to have the control channel of at least two different signaling length, step 11 and step 12 also can or be carried out with following steps for following steps:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit;
The control channel of said at least two different signaling length is mapped to definite corresponding search space respectively.
The control channel that wherein is at least two different signaling length is confirmed the corresponding search space respectively; Make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Specifically comprise: be the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or be the control channel of at least two corresponding different signaling length of same member carrier, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
During practical application; The mapping ruler that before transmitting-receiving two-end transmits control channel mutually, also needs the corresponding control channel corresponding search space of clear and definite member carrier; Comprise: the control channel of which the identical signaling length clear and definite concrete which carrier wave of needs is corresponding uses identical search volume, and/or clear and definite specifically need be that the control channel of which corresponding different signaling length of which carrier wave is confirmed the search volume respectively.In addition; Before the mapping ruler in the corresponding control channel corresponding search space of above-mentioned clear and definite member carrier; For emission and the detection that realizes the transmitting-receiving two-end control channel, possibly also need comprise mapping ruler initial or acquiescence, some or some control channel corresponding search locus and size that member carrier is corresponding.The method of confirming the mapping ruler in the control channel corresponding search space that member carrier is corresponding can be that standard agreement is confirmed; Receiving-transmitting sides can be specifically derived according to the algorithm of standard agreement; Or transmitting terminal is through proprietary signaling receiving equipment, and concrete proprietary signaling can comprise high-rise semi-static signaling, physical layer dynamic signaling, and the control channel of medium Access Layer.
When the control channel that is at least two different signaling length was confirmed the corresponding search space respectively, the corresponding control channel corresponding search space of these two different signaling length was to confirm promptly independently, can not have dependence and rule respectively.The control channel corresponding search space of two different signaling length can be confirmed according to two corresponding different signaling length marks of different signaling length respectively; Or confirm according to the corresponding member carrier sign of the control channel of two different signaling length respectively; Or the correlative of comprehensive above any or a plurality of combinations confirms that the present invention does not limit the selection of concrete identification parameter.For example: member carrier A is to having a, b, three kinds of signaling length of c; Member carrier B is to having a, b, d, four kinds of signaling length of e; Wherein can make the control channel of signaling length a use identical search volume, and confirm the control channel corresponding search space of signaling length c and signaling length d respectively, these the two kinds control channel corresponding search spaces that comprise signaling length c and signaling length d confirm it is independently; Such as; Confirm according to the corresponding different signaling length marks of signaling length c and signaling length d respectively, or confirm with the corresponding carrier identification of the pairing member carrier B of signaling length d according to the corresponding carrier identification of signaling length c place member carrier A respectively, or comprehensive above two correlatives are definite; The present invention does not limit the selection of concrete identification parameter; Consequently, the control channel corresponding search space of two kinds of different signaling length maybe be identical, also maybe be different; Be to confirm in the search volume that by the parameter role of confirming the search volume randomization of method determines, or other independently confirm what methods were confirmed.In addition, the present invention can not limit corresponding corresponding other signaling length with member carrier B of other signaling length b b of member carrier A, the control channel corresponding search space of e.
Preferably; If make control channel use identical search volume with identical signaling length; Whether subscriber equipment carries out blind Detecting in said search volume can know some control channels of the control channel of corresponding all identical signaling length, thus the number of times of less blind Detecting and reduced detection complexity.In addition,, promptly comprise the number of CCE, be provided with more flexibly, satisfy under the situation of control channel collision probability, reduce the search volume as far as possible, can further reduce the number of times of blind Detecting for the size of search volume.For example: member carrier A is to having a, b, three kinds of signaling length of c; Member carrier B is to having a, b, d, four kinds of signaling format lengths of e; Member carrier C is to having a, two kinds of signaling length of f; Then that member carrier A is corresponding signaling length a; The signaling length a that member carrier B is corresponding uses identical search volume with the control channel of the corresponding signaling length a of member carrier C, and the control channel of the signaling length b that the signaling length b of member carrier A correspondence and member carrier B are corresponding simultaneously also uses identical search volume.
Preferably; Make the control channel of different signaling length confirm search volume separately respectively, like this, the control channel corresponding search space of different signaling length maybe be different; Thereby reduced the probability of the control channel of different signaling length; The control channel that has guaranteed the UE subscriber equipment can be by effective scheduling and transmission, and then has guaranteed the respectively smooth transmission of the data of this UE subscriber equipment, improves the throughput of subscriber equipment.Also having identical search volume with the control channel of different signaling length compares; The method of independently confirming the control channel corresponding search space of each signaling length can be so that the control channel of said each signaling length has own corresponding search space; When these search volumes not overlapping and big or small with the contrast scheme big or small identical the time; Reduce the collision probability of control channel; Simultaneously do not increase the blind Detecting number of times, get final product because only need in the control channel corresponding search space of said each signaling length, detect the control channel of corresponding signaling length.For example: member carrier A is to having a, two kinds of signaling length of c; Member carrier B is to having a, two kinds of signaling format lengths of b; Member carrier C is to there being d signaling length; Then confirm the signaling length c that member carrier A is corresponding, the signaling length b that member carrier B is corresponding, the control channel corresponding search space of the signaling length d corresponding respectively with member carrier C.
Preferably; The method of confirming control channel corresponding search space can also comprise: the control channel of the identical signaling length of a member carrier correspondence uses identical search volume, perhaps confirms the control channel corresponding search space of the different signaling length that a member carrier is corresponding respectively.Wherein, The control channel of the identical signaling length of a member carrier correspondence uses under the situation of identical search volume; Whether subscriber equipment carries out blind Detecting in said identical search volume can know some control channels of the control channel of corresponding all identical signaling length, thus the number of times of less blind Detecting and reduced detection complexity.In addition; The control channel of the different signaling length that the embodiment of the invention and member carrier are corresponding also has identical search volume and compares; The method of independently confirming the control channel corresponding search space of each signaling length can be so that each signaling length has own corresponding search space; When these search volumes not overlapping and big or small with the contrast scheme big or small identical the time; Can reduce the collision probability of control channel, not increase the blind Detecting number of times simultaneously, get final product because only need in its search volume of confirming, detect the control channel of corresponding signaling length signaling length.For example: member carrier A is to having a, two kinds of signaling length of b; Then independently confirm the corresponding signaling length a of member carrier A, the control channel corresponding search space of b respectively; The result who confirms can be for identical; Also can be difference, be to confirm in the search volume that by the parameter role of confirming the search volume randomization of method determines.
During concrete the realization; Control channel for the corresponding identical signaling length of a member carrier; For example: form 0 has identical signaling length with form 1A; The information that can comprise 1 bit in these two forms separately concrete is form 0 or form 1A in order to what clearly indicate this control channel.If the control channel of identical signaling length is from different member carriers; Which carrier wave carrier wave indication information in can reuse control channel is in order to what distinguish concrete indication; Make the member carrier that the control channel of detection can corresponding its scheduling; The bit that this carrier wave indication information can be a dominance is represented, also can adopt scrambler differentiation etc., and concrete method the present invention does not limit.Differentiation for the control channel of the corresponding identical signaling length of member carrier specifically is the method that which kind of form still can adopt increases the bit indication.
Further, confirm the corresponding search space or confirm the method in corresponding search space respectively to comprise following example for the control channel of at least two identical signaling length for the control channel of at least two different signaling length:
Example one, confirm the original position and the size in said control channel corresponding search space.
Particularly, according to signaling length mark or signaling length group id, confirm the original position in said control channel corresponding search space; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.The size of confirming the search volume in the embodiment of the invention can comprise: confirm the size in the control channel corresponding search space of said signaling length to change according to the dynamic notice of signaling according to the mode of signaling; Or confirm the size in the control channel corresponding search space of this signaling length according to the number of the control channel of certain signaling length; It can be the mode that standard agreement is confirmed; Such as, confirm the size of search volume etc. according to the control channel number of current signaling length; Or confirm the size in the control channel corresponding search space of said signaling length according to the algorithm of confirming; Or according to every kind of big or small size of confirming control channel corresponding search space under the same polymeric level of said signaling length in the horizontal corresponding search of polymerization space in the existing LTE system.When a search volume was distributed on the member carrier, wherein the original position of this search volume can be the start sequence number of the CCE that comprises in the search volume, and the size of search volume can be the quantity of the CCE that comprises in the search volume.The CCE consecutive hours that in the search volume, comprises can directly be confirmed the search volume according to original position and size.When the CCE that in the search volume, comprises is discontinuous,, also need confirm the search volume according to discontinuous rule except according to original position, the size.Discontinuous rule can be for for example: the CCE sequence number is odd numbers, even numbers, differ n or other clocklike discontinuous forms.When a search volume is distributed on a plurality of member carriers; Confirm the original position that comprise and the size of this search volume on each member carrier respectively; Be the start sequence number of the CCE of correspondence on each member carrier and the quantity of CCE; With these CCE stacks, can obtain being distributed in this complete search volume on a plurality of member carriers then.
The control channel corresponding search space of said signaling length is confirmed in example two, the initial ranging space corresponding according to the control channel of said signaling length.
In example two, at first need confirm the corresponding initial ranging space of control channel of said signaling length, under a kind of situation, the initial ranging space that the control channel of signaling length is corresponding can also obtain through following steps:
Confirm the initial ranging space that each member carrier is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.
At this moment, can according in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier is corresponding.The size of confirming the initial ranging space in the embodiment of the invention can comprise: confirm the size in the initial ranging space that said member carrier is corresponding to change according to the dynamic notice of signaling according to the mode of signaling; Or confirm the size in the initial ranging space that said member carrier is corresponding according to the number of the corresponding control channel of member carrier; It can be the mode that standard agreement is confirmed; Such as, confirm the size in initial ranging space etc. according to the corresponding control channel number of current member carrier; Or confirm the size in the initial ranging space that said member carrier is corresponding according to the algorithm of confirming; Or according to every kind of big or small size of confirming control channel corresponding initial ranging space under the same polymeric level of said signaling length in the horizontal corresponding search of polymerization space in the existing LTE system.For example: according to the number of the corresponding control channel of member carrier and/or polywater equality parameter is configured or confirm initial ranging space that said member carrier is corresponding etc. according to the algorithm of standard protocol specifies.Typically, for each polymerization level, the corresponding initial ranging space of the control channel of the signaling length that each member carrier is corresponding is identical with the search volume of existing LTE system.Certainly compare with the LTE system in the search volume; Also can let some special member carrier waves; The initial ranging space of the control channel of the signaling length that for example main carrier is corresponding is bigger, and the initial ranging space of other non-main carriers correspondences is less than the search volume of LTE system; Even other possible configurations, dispose flexibly according to the needs of system.The present invention does not limit.
Under the another kind of situation, the initial ranging space that the control channel of signaling length is corresponding can obtain through following steps:
Step 1, confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding;
At least there are two identical signaling length in step 2, the signaling length, then make the control channel of said at least two identical signaling length use identical initial ranging space as if same member carrier correspondence; And/or, if having two different signaling length at least in the signaling length of same member carrier correspondence, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit.
At this moment, according to signaling length mark or signaling length group id, can confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding; Perhaps; According in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, can confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding.The size of confirming the initial ranging space in the embodiment of the invention can comprise: confirm the size in the initial ranging space that the control channel of said signaling length is corresponding to change according to the dynamic notice of signaling according to the mode of signaling; Or confirm the size in the initial ranging space that the control channel of this signaling length is corresponding according to the number of the control channel of certain signaling length; It can be the mode that standard agreement is confirmed; Such as, confirm the size in initial ranging space etc. according to the control channel number of current signaling length; Or confirm the size in the initial ranging space that the control channel of said signaling length is corresponding according to the algorithm of confirming; Or according to every kind of big or small size of confirming control channel corresponding initial ranging space under the same polymeric level of said signaling length in the horizontal corresponding search of polymerization space in the existing LTE system.
Under another situation, further, if the member carrier of dispatching user facility is more, or owing to support single user's multiple-input and multiple-output (Single User Multiple-Input Multiple-Out-put; SU-MIMO), multi-antenna transmitting is defeated, continuous and discontinuous resource allocation etc., subscriber equipment may be supported the control channel of a variety of signaling length in each subframe.At this moment; Signaling length according to the corresponding control channel of member carrier; When confirming control channel corresponding search space; Can also divide into groups to said member carrier, after said member carrier was divided into groups, the initial ranging space that the control channel of said signaling length is corresponding can also obtain through following steps:
Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.
At this moment, can according in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier group is corresponding.
The method of wherein said member carrier being divided into groups can comprise: each is divided into one group to the uplink and downlink member carrier; The member carrier that maybe will have the identical traffic pattern is divided into one group; The member carrier that maybe will have same transmission bandwidth is divided into one group; The member carrier that maybe will have the identical traffic number of antennas is divided into one group; It also can be the combination in any of said method.The present invention does not limit the method for concrete grouping.
In example two, confirm the corresponding initial ranging space of the control channel of said signaling length after, according to said initial ranging space, confirm the concrete grammar in the control channel corresponding search space of said signaling length, comprising:
If the signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical.Wherein, Identical being meant of initial ranging space segment that the control channel corresponding search space of a signaling length and the control channel of a said signaling length are corresponding: the control channel corresponding search space of a signaling length is some subclass in the corresponding initial ranging space of the control channel of said signaling length, perhaps increases or reduce the variation of CCE according to this subclass.And/or
If a signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.Wherein, The control channel corresponding search space of a signaling length is that the part of the search volume of the corresponding initial ranging space formation of the control channel of said signaling length is meant: the control channel corresponding search space of a signaling length is some subclass in all corresponding initial ranging spaces of the control channel of said signaling length, perhaps increases or reduce the variation of CCE according to this subclass.
In like manner can obtain the method for back of dividing into groups according to the control channel corresponding search space of the signaling length of the corresponding initial ranging space appointment of the control channel of signaling length.
Present embodiment, for same polymerization level, transmitter can be confirmed its corresponding search space according to the signaling length of control channel; Help the design of search volume; Can reduce the blind Detecting number of times, reduce the conflict of control channel, thereby reduce the probability of control channel collision.
Make a concrete analysis of as follows: for example; When any one or the control channel of the correspondence of a plurality of member carriers comprise identical signaling length; The control channel of identical signaling length can use identical search volume; UE is in the search volume that a kind of polymerization level is comprised, when promptly the CCE resource was carried out blind Detecting, one-time detection can determine whether it is the some control channels in this signaling length.This moment this signaling length the search volume that can use control channel flexibly with identical signaling length; Control channel can be mapped in this space flexibly; Do not increase the number of times of blind Detecting; But reduced the restriction of control channel transmission, reduced the collision probability of control channel accordingly.When the signaling length of two control channels identical, comprise several kinds of situation: two control channels that can be the corresponding same format of same member carrier; Or two control channels of the different-format of same member carrier correspondence, different such as same member carrier format 0 with format 1A form, but signaling length is identical; Or two control channels of the corresponding same format of the different members carrier wave with same band; Or two control channels of the corresponding different-format of the different members carrier wave with same band; Or two control channels with the corresponding same format of same antenna number different members carrier wave; Or two control channels of the corresponding different-format of the different members carrier wave with same antenna number; Or even through some extra process; For example: increase filling bit, reduce the indication bit (as: increasing the granularity of resource allocation) of some information etc.; Thereby reduce the modes such as bit number that resource allocation is used, make the control channel of two same format or different-format have identical signaling length.The signaling length of control channel is the principal element that influences the blind Detecting number of times; Because; Receiving equipment need be in the search volume; The various signaling length that possibly occur to corresponding in its search volume are carried out blind Detecting under its possible polymerization level; When using identical search volume for the control channel with identical signaling length, whether subscriber equipment carries out blind Detecting in said search volume can know some control channels of the control channel of corresponding all identical signaling length, thus the number of times of less blind Detecting and reduced detection complexity.
The signaling length of the control channel that comprises when the corresponding control channel of any one or a plurality of member carrier is not simultaneously; Confirm the control channel corresponding search space of different signaling length respectively; At this moment, the control channel corresponding search space of different signaling length maybe be different.And control channels big or small and different signaling length not overlapping when these search volumes have identical search volume size when identical; The control channel that only need in the control channel corresponding search space of said each signaling length, detect corresponding signaling length gets final product; Therefore reduce the collision probability of control channel, do not increased the blind Detecting number of times simultaneously.Thereby; Reduced the collision probability of the control channel of different signaling length, guaranteed that the control channel of UE subscriber equipment can be by effective scheduling and transmission, and then guaranteed the respectively smooth transmission of the data of this UE subscriber equipment; Improve the throughput of subscriber equipment, do not increase the blind Detecting number of times simultaneously.
Fig. 2 a is a kind of sketch map of the method for the control channel mapping that provides of the embodiment of the invention two; Fig. 2 b is the another kind of sketch map of the method for the control channel mapping that provides of the embodiment of the invention two; Shown in Fig. 2 a; On control channel corresponding search spatial mappings to a member carrier of the various signaling length of a member carrier correspondence, shown in Fig. 2 b, on control channel corresponding search spatial mappings to a member carrier of the various signaling length that a plurality of member carriers are corresponding.On the basis of first embodiment of the method for control channel of the present invention mapping, control channel for example can be PDCCH, in present embodiment and following each embodiment, is that example describes with PDCCH, but the present invention is not limited to PDCCH.
Signaling length that can corresponding N kind PDCCH on member carrier in the present embodiment, the PDCCH of this N kind signaling length is corresponding to subscriber equipment transfer of data on one or more member carriers.
Shown in Fig. 2 a; When transmitter confirm to give a subscriber equipment on a member carrier during corresponding N kind signaling length; For same polymerization level, can make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume; And/or; Control channel at least two corresponding different signaling length of same member carrier; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.For example: the search volume of the PDCCH of the N kind signaling length of a member carrier correspondence is independently confirmed respectively.To subscriber equipment 3 (UE3), suppose the UE3 corresponding signaling length of three kinds of PDCCH: N=3 on a member carrier, corresponding to the transfer of data of a member carrier to A (uplink and downlink member carrier A).Transmitter can be member carrier search volume of PDCCH distribution to each corresponding signaling length of the transfer of data of A in the zone of the control channel on the downlink member carrier A 20; Be divided into and join 3 search volumes: search volume 21, search volume 22, search volume 23, can only carry the PDCCH of a signaling length in each search volume.
Shown in Fig. 2 b; When transmitter confirms that the control channel of the various signaling length that a plurality of member carriers of a subscriber equipment are corresponding is mapped on the member carrier; For same polymerization level; Can confirm the corresponding search space for the control channel of at least two corresponding identical signaling length of different members carrier wave, make the control channel of said at least two identical signaling length use identical search volume; And/or, confirm the corresponding search space respectively for the control channel of at least two corresponding different signaling length of different members carrier wave, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.For example: the business datum of transmitter configuration UE 3 can be carried on member carrier A and B are gone up transmission; And the control channel PDCCH of transmitter configuration UE 3 all transmits on downlink member carrier A, that is to say that the downlink member carrier A that no matter dispatches UE3 still is that the corresponding PDCCH of data on the downlink member carrier B all uses downlink member carrier A to carry.To each PDCCH polymerization level, transmitter can be that the control channel of each signaling length distributes the search volume in the zone of the control channel on the descending carrier A 20.Suppose N=2, signaling length X, the Y of 2 kinds of PDCCH arranged on downlink member carrier A, the signaling length X of a kind of PDCCH is arranged on the downlink member carrier B, then have identical signaling length X on downlink member carrier A and the downlink member carrier B.The PDCCH that among Fig. 2 b is this identical signaling length X on two carrier waves distributes a search volume 24, and is another search volume 25 of PDCCH distribution of other a kind of different with the X signaling length Y on the downlink member carrier A.To sum up, can distribute the search volume, for example comprise search volume 24, search volume 25 for the PDCCH of the corresponding signaling length of a plurality of member carriers.The CCE sequence number that comprises in these two search volumes is can be fully different or have part identical; Even also can be identical, PDCCH form or signaling length that these differences influence subscriber equipment PDCCH collision probability and in the corresponding search space, need to detect.Concrete can be with reference to the associated exemplary of first embodiment of the method for control channel mapping of the present invention.
Expansion ground; The another kind of sketch map of the method for the control channel mapping that Fig. 3 provides for the embodiment of the invention two, as shown in Figure 3, when transmitter is confirmed to give the signaling length of subscriber equipment corresponding N kind PDCCH on P member carrier; A kind of situation; Divide equally based on each polywater in all control channel zones of P member carrier for this subscriber equipment and to join N search volume, like this, the PDCCH of every kind of signaling length is carried in its corresponding search space.Another kind of situation; When on P member carrier, carrying the signaling length of N kind PDCCH for a subscriber equipment; (the individual search volume of M＜N) has the corresponding same search volume of control channel of two signaling length this moment at least for this subscriber equipment can distribute M based on each polymerization level in all control channel zones of P member carrier.In Fig. 3; P=2; N=3; The business datum of transmitter configuration UE 4 can be carried paired uplink and downlink member carrier A, B and C and gone up transmission, and the control channel PDCCH of transmitter configuration UE 4 can transmit on downlink member carrier A and downlink member carrier B, and the signaling length of supposing to dispatch the PDCCH of UE4 comprises signaling length X, Y and Z.To each PDCCH polymerization level; Transmitter can be divided on downlink member carrier A and downlink member carrier B joins 3 search volumes; Only carry the control channel of the signaling length of a kind of PDCCH in each search volume, and the CCE number that each search volume comprises can be reconfigured by transmitter as required.2 search volumes that can PDCCH signaling length X and Y is corresponding: search volume 31, search volume 32 are configured in the control channel zone 30 of downlink member carrier A, and the search volume 33 of PDCCH signaling length Z is configured in the control channel zone 34 of downlink member carrier B.Wherein the CCE sequence number that comprises of search volume 31, search volume 32 can have identical or inequality fully.Except that the method; Also can be with the search volume of the signaling length Z of PDCCH corresponding to the search volume 31 in the control channel zone 30 of downlink member carrier A; Like this; The search volume of the signaling length Z of PDCCH can be distributed on a plurality of member carriers, and example as above not only comprises the search volume 31 in the control channel zone 30 of downlink member carrier A, can also comprise the search volume 33 in the control channel zone 34 of downlink member carrier B.In sum, all CCE of a search volume can be distributed on the member carrier, also can be distributed on a plurality of member carriers.
In sum; For a kind of polymerization level, the control channel corresponding search space of various signaling length can be distributed on the member carrier, also can be distributed on a plurality of member carriers; CCE sequence number in the search volume can be continuous, also can be discontinuous.When the control channel corresponding search spatial distribution of the signaling length of PDCCH is in a member carrier; Obtain the initial CCE sequence number of search volume on this member carrier and all CCE sequence numbers that comprise, just can obtain the control channel corresponding search space of the signaling length of this PDCCH.When the PDCCH corresponding search spatial distribution of the signaling length of this PDCCH is in a plurality of member carriers; Obtain the CCE sequence number that comprises in the corresponding search space on each member carrier, and with the superpose PDCCH corresponding search space of the signaling length that can obtain this PDCCH of these CCE.If on the member carrier in the corresponding search space CCE sequence number always continuous, according to the initial CCE sequence number of the search volume of confirming, and the number of the CCE that comprises of this search volume, can know the sequence number of all CCE that this search volume comprises.
In the present embodiment, confirm that the PDCCH corresponding search space of certain signaling length can comprise following example:
Example one, confirm the original position and the size in the PDCCH corresponding search space of certain signaling length.
Wherein can confirm the original position in said control channel corresponding search space according to said according to signaling length mark or signaling length group id; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.Wherein, signaling length mark, signaling length group id can be the specific signaling length mark of system, and promptly absolute signaling length mark also can be the specific signaling length mark of UE, promptly relative signaling length mark; The member carrier sign that control channel is corresponding also can be the specific member carrier sign of system, and promptly absolute member carrier sign also can be the specific member carrier sign of UE, promptly relative member carrier sign.
The original position of confirming the search volume is that the sequence number of the CCE of original position for example can be calculated according to customer equipment identification (UE ID).Because same UE maybe be to there being different UE ID on the different members carrier wave, so can use UE ID to calculate the original position of search volume, the original position of the search volume of different members carrier wave on same polymerization level can be different like this.Calculate the original position in the control channel corresponding search space of UE in subframe k with UE ID, for example can calculate through following formula (1) and formula (2).
Y k＝(A×Y k-1)modD (1)
Wherein A for example can be 39827, and D for example can be 65537, iterative value Y kCan be regarded as the iterative value that changes with subframe numbers k, Y wherein during k=0 -1Be iterative initial value, iterative initial value is that system assignment is given the UE ID of subscriber equipment or is called C-RNTI generally speaking, equals n RNTI, iterative initial value is not 0; L is polymerization level (aggregation level), N Cce, kIt is the total quantity that system is used for the CCE of control channel transmission in the k sub-frame; The iterative value Y of current subframe kBe iterative value Y through previous subframe K-1Behind the multiplication by constants A D delivery is obtained; So iterative value Y of current subframe kThe iterative value that is front K-1 sub-frame is carried out the result that interative computation draws; Delivery is represented in wherein mod computing; Z kRepresentative is n if system is a customer equipment identification in the k sub-frame RNTIUser equipment allocation polymerization level be the control channel of L, the start position in said control channel corresponding search space.
Transmitter distributes different UE ID for different UE, and UE ID not only can be used for discerning the different UEs in the same sub-district, and when calculating its search volume, the effect that can also have randomization search volume original position.This randomized method to a certain extent also can randomization UE between control channel corresponding search spatial distributions, reduce the collision of control channel between the UE.
Except the sequence number of the initial CCE that confirms the search volume adopts UE ID calculates; Can also confirm the sequence number of the CCE of search volume original position with the signaling length mark together, the signaling length of the concrete PDCCH that can UE be supported in current subframe identifies.Different UE is because the number of the signaling length of the PDCCH that supports is different, and the sign that adopts to the signaling length with a kind of PDCCH also maybe be different, have the specific characteristic of UE, are the relative signaling length marks that UE adopts; Certainly, also can the signaling length of all PDCCH of system's support definitely be identified, adopt signaling length mark with the PDCCH of the signaling length of the PDCCH of this UE.Wherein, The signaling length mark of the PDCCH that UE is specific is used for the PDCCH corresponding search space of the various signaling length of subregion; The signaling length of the PDCCH that same UE is corresponding different has the signaling length mark of different PDCCH, for example: can adopt following formula (3), formula (4) to calculate original position:
Y k＝(A×Y k-1×M k，p)modD (3)
M in formula (3), (4) K, pBe the signaling length mark (Length ID) of the PDCCH of p kind control channel signaling length correspondence among the subframe k, M K, pBe not 0, the implication of other parameters is identical with formula (2) with formula (1).
Can find out from above two examples; The another one parameter that is different from UE ID when introducing; Like signaling length mark or member carrier sign, when acting on the calculating of sequence number of initial CCE of search volume, be equal in principle and in current subframe, used another one UE ID.When changing through the time, both make the Y in a certain subframe kWith the corresponding Y of another one UE ID kWhen equating; Because identifying, another one parameter of introducing such as signaling length mark or member carrier can not change dynamically with subframe; Such as being semi-static variation for the corresponding member carrier sign of UE, like this, the corresponding Y of two users in a certain subframe kWhen equating, all can cause Y in the ensuing subframe kContinue to equate that such two users' control channel can continue collision.The method that solves can not reallocated for the another one UE ID with two parameter equivalents, and this will influence the distribution method of UE ID; Another selectable method is also with M K, pAdopt the non-property taken advantage of (such as additive relation), collision can not appear continuing in the subframe variation so at random.
Because when the signaling length mark that utilizes PDCCH is confirmed the original position of search volume; May relate to the number of all CCE that distribute to control channel; So in the present embodiment; Can also further divide all CCE that distribute to control channel, i.e. spatial division is further to confirm the original position of search volume.For example; All CCE that distribute to PDCCH are 100, then when the signaling length mark that utilizes PDCCH calculates, surpass above-mentioned 100 CCE for fear of result of calculation; Can limit calculations must in these 100 CCE, for example result of calculation be used 100 deliverys.The original position of the search volume that the signaling length mark of like this, different PDCCH calculates maybe be identical.Overlapping for the control channel corresponding search space of further avoiding the different signaling length of UE can be divided into all CCE two groups, and the search volume that is about to the whole PDCCH of distributing to is divided into two.Can only be positioned at first space that division obtains in the restricted part search volume like this, other search volumes can only be positioned at divides second space that obtains.In order better to avoid the collision of control channel, can divide the search volume according to the number or the kind of the signaling length of PDCCH.For example: the signaling length of a total N PDCCH; The whole search volume that then will distribute to control channel is divided into N; Then the search volume of the signaling length of each PDCCH can only be in the division space of correspondence, and the CCE that the PDCCH corresponding search space of different signaling length is comprised is not overlapping, under the situation that does not change the blind Detecting number of times; The PDCCH mapping area of the multiple signaling length of a UE correspondence is different, can reduce the collision of control channel; Certainly, can be that also the PDCCH of multiple signaling length distributes a CCE zone, the CCE that makes the PDCCH corresponding search space of some signaling length comprise is overlapping.For example: the original position in the control channel corresponding search space of UE in subframe k, can calculate through following formula (5) and formula (6).
Y k＝(A*Y k-1)mod?D (5)
Figure BDA00002103795400241
In formula (5) and formula (6), N is that whole control channel spatial division is a N space number; N is the signaling length of n kind control channel, and n＜=N generally speaking, and the implication of other parameters is identical with formula (2) with formula (1).
The size of search volume is meant the number of the CCE that this search volume comprises, the size of search volume can be for fixing, also can be for changing.Can confirm the size in the control channel corresponding search space of said signaling length according to the mode of signaling, for example: change dynamically according to signaling.Or confirm the size in the control channel corresponding search space of said signaling length according to the number of control channel; It can be the mode that standard agreement is confirmed; For example: adopt standard agreement to confirm the search volume size; Such as, confirm the size of search volume etc. according to the control channel number of current signaling length; Or confirm the size in the control channel corresponding search space of said signaling length according to the algorithm of confirming; Or according to every kind of big or small size of confirming control channel corresponding search space under the same polymeric level of said signaling length in the horizontal corresponding search of polymerization space in the existing LTE system.
The control channel corresponding search space of said signaling length is confirmed in example two, the initial ranging space corresponding according to the control channel of said signaling length, and situation about specifically comprising and step can be with reference to the associated description of the embodiment of the invention one.For example: the sketch map of method is confirmed in the control channel search volume in the method for the control channel mapping that Fig. 4 provides for the embodiment of the invention two; As shown in Figure 4; Member carrier comprises downlink member carrier S and its corresponding uplink member carrier S to S, and member carrier is to the corresponding signaling length A of S, C; These two kinds of signaling length A, the label among the corresponding downlink member carrier S in initial ranging space (PDCCH carrier wave S) of C correspondence are 41 zone; Member carrier promptly comprises downlink member carrier T and its corresponding uplink member carrier T to T; The corresponding signaling length A of uplink member carrier T; B, these two kinds of signaling length A, the label among the corresponding downlink member carrier T in initial ranging space (PDCCH carrier wave T) of the control channel correspondence of B is 42 zone.All is a unique signaling length to S corresponding signaling length C and member carrier to the corresponding signaling length B of T for member carrier; So; Identical with each self-corresponding initial ranging space or part is identical to the control channel corresponding search space of the signaling length B of T correspondence for member carrier to the control channel of the corresponding signaling length C of S and member carrier; For example: member carrier is its initial ranging space 41 to the control channel corresponding search space size of the corresponding signaling length C of S, and member carrier is its initial ranging space 42 to the control channel corresponding search space size of the corresponding signaling length B of T.In addition; Member carrier is identical to the corresponding signaling length A of T with member carrier to the corresponding signaling length A of S; Member carrier can be identical to the control channel corresponding search space of the corresponding signaling length A of T with member carrier to the corresponding signaling length A of S, and the size of search volume can be member carrier some or all of to the initial ranging space of the signaling length A of S and T correspondence for: the control channel corresponding search space of this signaling length A.Such as; Adopt the whole of initial ranging space; Concrete member carrier the signaling length A and member carrier complete or collected works to control channel corresponding search space its corresponding initial ranging space of T corresponding signaling length A, i.e. initial ranging space 41 and initial ranging space 42 corresponding of being expressed as to S.In addition, to be member carrier to the control channel of the corresponding signaling length A of S be meant the part in the initial ranging space of the corresponding signaling length A of T member carrier: increase or the variation of the CCE that reduces to comprise according to the corresponding initial ranging space of some subclass of the control channel of this signaling length A.Wherein, the method for confirming the initial ranging space can be divided into multiple situation.Under a kind of situation, confirm the initial ranging space that each member carrier is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.At this moment, can according in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier is corresponding.Under the another kind of situation, confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence.At this moment, according to signaling length mark or signaling length group id, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding; Or according in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding.Under another situation; After said member carrier divided into groups; Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.At this moment, according in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier group is corresponding.Confirm the concrete grammar of the original position in initial ranging space, can be with reference to above-mentioned formula (1) to (6) and relevant narration, only needing to revise relevant parameters can realize.The method of in addition, member carrier being divided into groups can be with reference to the relevant narration in the embodiment of the invention one.
Further; In the present embodiment; For each polymerization level, the CCE that the said control channel corresponding search space of confirming according to control channel signaling length comprises can be discontinuous, can be continuous; Can be distributed on the carrier wave, also can be distributed on a plurality of carrier waves.Under the discontinuous situation of CCE, obtain the discontinuous rule of CCE.
Further, in the present embodiment, for each polymerization level; Position relation between the control channel of the different signaling length of confirming can be discontinuous; Can be continuous, can be nonoverlapping fully, also can overlap or fully overlapping.
In the present embodiment, when confirming the control channel corresponding search space of member carrier correspondence, can confirm the position relation between the search volume, comprise following example according to the signaling length of control channel:
If the signaling length of the control channel that example one different members carrier wave is corresponding is identical; Confirm that then the identical member carrier corresponding search space of said signaling length is overlapping fully or overlap, comprise the carrier wave indication information that is used to indicate the different members carrier wave in the said control channel.
Wherein, the search volume is complete when overlapping, and the original position in the member carrier corresponding search space that corresponding control channel signaling length is identical is identical, and size is also identical; When overlap in the search volume, comprise an identical CCE at least in the member carrier corresponding search space that corresponding control channel signaling length is identical.Because the signaling length of the control channel that the fully overlapping or partly overlapping member carrier in search volume is corresponding is identical, so that the overlapping number of times that can reduce blind Detecting to a great extent in search volume.For example: when the data-transmission mode of a pair of uplink and downlink member carrier A and member carrier B is identical; It is identical to the signaling length of the corresponding PDCCH of last transfer of data to dispatch each carrier wave; At this moment; Preferably can the CCE sequence number that two search volumes comprise is identical, can think in this case and have only a search volume that two corresponding PDCCH of carrier wave can be carried on any one position in this search volume; Increase the flexibility that control channel is placed, but the blind Detecting number of times there not be increase because of the signaling length of the PDCCH of its scheduling multicarrier is identical.Need the carrier wave indication information this moment among each PDCCH and represent which carrier wave of dispatching, have a word territory to show that indication realizes among scrambler that the carrier wave indication information can be through the carrier wave customizing messages or the PDCCH.Suppose that the horizontal corresponding search of each polymerization space is M, if during the signaling length of the corresponding two kinds of PDCCH of a kind of transmission mode, in the M of search volume, subscriber equipment needs blind Detecting 2M time.The control channel search volume of the signaling length that the different members carrier wave is corresponding is overlapping fully or when overlapping, and can reach the purpose that reduces the control channel conflict through the size that increases the search volume.For example, when being 8 CCE for the polymerization level, the search volume is 16 CCE in the existing scheme, in order to reduce the conflict of control channel, and can be so that the size in the control channel corresponding search space of signaling length greater than 16 CCE, for example comprises 32 CCE.
If the signaling length of the control channel that example two different members carrier waves are corresponding is different, confirm that then the different member carrier corresponding search space of said signaling length is not overlapping.
For example: when the uplink and downlink member carrier to A and member carrier to the data-transmission mode of B when inequality; Promptly dispatching each member carrier maybe be inequality to the signaling length of the corresponding PDCCH of last transfer of data; Each member carrier is configured the needs according to himself transmission characteristic, and each member carrier is to having the signaling length of several kinds of different PDCCH.At this moment; Preferably can the CCE sequence number that two search volumes comprise is inequality fully; Can think that in this case member carrier all has the corresponding independently search volume of control channel of carrier signalling length separately to A, B, two member carriers only can be carried on separately the PDCCH of correspondence and transmit in the corresponding search space.Like this, which member carrier that can not need the information representation scheduling among the PDCCH is right, through which member carrier of member carrier to the information indication scheduling in particular search space, thus the signaling consumption of saving PDCCH.Suppose that a corresponding search volume of each polymerization level is M.If during the signaling length of the corresponding two kinds of PDCCH of a kind of transmission mode, in the M of search volume, subscriber equipment needs M time blind Detecting in each search volume, but subscriber equipment needs blind Detecting M+M=2M time altogether in two search volumes.When the search volume is not overlapping, can not reduce the number of times of blind Detecting, but can the size of search volume suitably be reduced or maintenance and LTE system in search volume big or small identical.
When for same polymerization level, when the control channel corresponding search space of different members carrier wave is not overlapping, can no longer transmit the carrier wave indication information of member carrier, for example identifying information, carrier index.This is because for same polymerization level, and the search volume of different members carrier wave is not overlapping, makes UE in certain specific search volume, detect PDCCH and just can know, this PDCCH is corresponding with the member carrier of corresponding this search volume.And work as for same polymerization level; When the control channel corresponding search space segment of different members carrier wave is overlapping or overlapping; Just need transmission member carrier identifying information so that UE can learn this UE detected PDCCH in a certain search volume corresponding which member carrier.
Example three, confirm that the control channel corresponding search space segment of the signaling length that said member carrier is corresponding is overlapping.
Can adopt the method in the example one to make the control channel corresponding search space of the signaling length that above-mentioned member carrier is corresponding only overlap in some cases; At this moment not only can reduce the collision of control channel, the number of times of minimizing blind Detecting that also can be to a certain extent.In addition, in this example three, the control channel corresponding search space of these two identical signaling length or different signaling length can be to confirm promptly independently, do not have dependence and rule respectively.For example: the control channel corresponding search space of two different signaling length can be confirmed according to two corresponding different signaling length marks of different signaling length respectively; Or confirm according to the control channel of two different signaling length place member carrier sign respectively, or the correlative of comprehensive above any or a plurality of combinations is confirmed; Or/and; Two control channel corresponding search spaces with signaling length inequality also can be respectively inequalityly confirm with the corresponding different identical signaling length marks of signaling length according to two, or confirm according to the control channel place member carrier sign of two identical signaling length of difference respectively, or the correlative of comprehensive above any or a plurality of combinations is confirmed; In a word; The embodiment of the invention does not limit the selection of concrete identification parameter, like this, and simultaneously; The control channel corresponding search space of the two kinds of different signaling length in control channel corresponding search space of these two identical signaling length or different signaling length maybe be identical; Also maybe be different, be that the control channel corresponding search space of the corresponding signaling length of member's carrier wave possibly be only partly overlapping, be to confirm in the search volume that by the parameter role of confirming the search volume randomization of method determines; Or its method of independently confirming, the present invention does not limit.
Further; The control channel corresponding search space of the signaling length of at least one appointment that transmitter is can subscriber equipment corresponding is set to the preferential search volume of detecting, and the control channel corresponding search space of the signaling length of corresponding other the non-appointments of this subscriber equipment is set to expand the search volume of detection.Because the member carrier that carries control channel can be preferably the main carrier of subscriber equipment; Main carrier is the member carrier that is in the detection that the subscriber equipment of connection status need continue; The channel condition of main carrier relatively can be relatively good; Like this; The transmission performance of the PDCCH that subscriber equipment is corresponding is good, and the signaling length of those PDCCH that therefore can main carrier is corresponding is as the signaling length of appointment, and the control channel corresponding search space of the signaling length of those PDCCH that main carrier is corresponding is set to the preferential search volume of detecting.In addition; Also can be more the control channel corresponding search space of signaling length of the number of times PDCCH that occurs and occur with big probability be set to the preferential search volume of detecting, and the control channel of the signaling length of other PDCCH is set to expand the search volume of detection.Stipulate in the agreement; How to confirm preferentially to detect the search volume and detect the search volume with expansion; And preferentially detect search volume and expansion and detect information such as the signaling length that comprises in the search volume, form, receiving-transmitting sides can be specifically derived according to the algorithm of standard agreement or transmitting terminal can comprise through proprietary signaling receiving equipment, concrete proprietary signaling: the control channel of high-rise semi-static signaling, physical layer dynamic signaling, medium Access Layer etc.
The control channel of the signaling length of the PDCCH that transmitter priority scheduling main carrier is corresponding; Or priority scheduling occurs with more number of times and the control channel of the signaling length of the PDCCH that occurs with big probability; Or the control channel of the signaling length of the PDCCH that confirms of other modes transmits data.In addition; The preferential search volume of detecting can be not overlapping or overlapping with the search volume that expansion detects; If it is not overlapping; For a kind of polymerization level, the control channel corresponding search space of the signaling length of PDCCH promptly is all CCE sequence numbers of the preferential search volume of detecting and the search volume of expansion detection; If overlapping, the control channel corresponding search space of PDCCH signaling length is all CCE sequence numbers that the search volume of preferential search volume of detecting or expansion detection comprises.
In LTE, need monitor the subscriber equipment of control channel for some, all to carry out blind Detecting to the common search space that at least one member carrier is corresponding.So, when the common search space has remaining CCE resource can be used to shine upon and transmit the only PDCCH of this subscriber equipment, can the PDCCH of subscriber equipment be carried in this common search space and transmit.At this moment, when the common search space has not had remaining CCE resource can be used to shine upon and transmit the PDCCH of this subscriber equipment, the signaling length of those PDCCH that the subscriber equipment main carrier is corresponding; Or only one or a plurality of PDCCH are carried in the preferential detection search volume and transmit in the signaling length of the PDCCH that occurs and occur with big probability with more number of times; If also there is the signaling length of other PDCCH, again other the PDCCH of signaling length of PDCCH is carried on expansion and detects in the search volume and shine upon and transmit.
In the present embodiment, transmitter can distribute a plurality of search volumes according to the signaling length of the corresponding a plurality of control channels of the PDSCH of the PUSCH of a plurality of uplink member carrier scheduling and/or the scheduling of a plurality of downlink member carrier on one or several downlink member carriers.In the search volume of distributing, can shine upon the control channel of each signaling length; For transmitter; The search volume is the CCE zone that transmitter can shine upon PDCCH, and for receiving equipment, the search volume is the CCE that the confirms zone of receiving equipment blind Detecting control channel.The kind of the signaling length of the control channel that transmitter possibly transmit in a period of time according to subscriber equipment; Can be the control channel distributing independent search volume of every kind/several formats; These search volumes can be distributed on one or several member carriers; And the size of search volume can be configured according to number and/or the probability that the corresponding every kind of signaling length of subscriber equipment occurs; Or change according to the corresponding initial ranging space of each member carrier, make the control channel corresponding search space of every kind of signaling length and the CCE number that comprises thereof on one or several member carriers, change according to demand.For example: number that occurs as the PDCCH of some signaling length and/or probability are more for a long time; Increase the CCE number that its corresponding search volume comprises; The number that can hold transmitting control channel like this increases, the collision probability in the time of can reducing with other subscriber equipment control channel transmission.Otherwise; Number that occurs as the PDCCH of some signaling length and/or probability are more after a little while; The CCE number configuration that its search volume comprises is less; The resource that is used for transmitting control channel like this is less, reduces the number of times of subscriber equipment blind Detecting control channel, reduces the complexity of subscriber equipment processing, the consumption of saving battery electric quantity.
In the present embodiment; Member carrier also can replace with member carrier to, member carrier group, member carrier collection or member carrier pair set, and said member carrier sign can replace with member carrier sign, member carrier group id, member carrier collection sign or member carrier pair set are identified.Therefore, the description of member carrier is equally applicable to member carrier to, member carrier group, member carrier collection or member carrier pair set.For example, under the more situation of member carrier, the complexity that detects for the number that reduces the search volume and subscriber equipment can be with member carrier or member carrier to dividing into groups, and every group is a member carrier collection.This moment, member carrier can replace with member carrier collection.
The flow chart of the method that the control channel that Fig. 5 provides for the embodiment of the invention three detects, as shown in Figure 5, the method that this control channel detects may further comprise the steps:
Step 51, for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume.
Step 52, in the said identical search volume of confirming, detect the control channel of the signaling length that said identical search volume comprises.
Wherein, make the control channel of at least two identical signaling length use identical search volume, specifically comprise: make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume.
Above-mentioned step 51 and step 52 are the method under the situation of one or more member carriers control channel of having at least two identical signaling length; When existing one or more member carriers to have the control channel of at least two different signaling length, step 51 and step 52 also can perhaps be carried out with following steps for following:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two different signaling length is confirmed the corresponding search space respectively; Make at the control channel of at least two different signaling length described at least one time transmission unit and use different search volumes, in the said different search volume of confirming, detect the control channel of the signaling length that said different search volume comprises.
The control channel that wherein is at least two different signaling length is confirmed the corresponding search space respectively; Make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Specifically comprise: be the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or be the control channel of at least two corresponding different signaling length of same member carrier, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
User equipment (UE) according to the signaling length of the corresponding control channel of member carrier, confirms that the method in control channel corresponding search space specifically comprises following example when detecting control channel:
Example one, subscriber equipment are confirmed the original position and the size in said control channel corresponding search space; Wherein, Subscriber equipment confirms that the method for the original position in control channel corresponding search space is: according to signaling length mark or signaling length group id, confirm the original position in said control channel corresponding search space; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.Specifically can be with reference to the associated description of confirming search volume original position, size in the embodiment of the invention one, two.
The control channel corresponding search space of said signaling length is confirmed in the initial ranging space that example two, subscriber equipment are corresponding according to the control channel of said signaling length.
Wherein, subscriber equipment is confirmed the method in the initial ranging space that the control channel of signaling length is corresponding, can be divided into multiple situation.
Under a kind of situation, the initial ranging space that the control channel of said signaling length is corresponding obtains through following steps:
Confirm the initial ranging space that each member carrier is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.
At this moment, according in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the initial ranging space that each member carrier is corresponding.
Under the another kind of situation, the initial ranging space that the control channel of said signaling length is corresponding obtains through following steps:
Step 1, confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding;
At least there are two identical signaling length in step 2, the signaling length, then make the control channel of said at least two identical signaling length use identical initial ranging space as if same member carrier correspondence; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence.
At this moment, can confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding according to signaling length mark or signaling length group id; Or can according in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding.
Under another situation, if said member carrier is divided into groups, the initial ranging space that the control channel of said signaling length is corresponding obtains through following steps:
Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.
At this moment, according in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the initial ranging space that each member carrier group is corresponding.
Subscriber equipment has been confirmed after the corresponding initial ranging space of the control channel of signaling length, and the initial ranging space corresponding according to the control channel of said signaling length confirms that the method in the control channel corresponding search space of said signaling length is:
If the signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; And/or
If a signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.Wherein, Wherein, The control channel corresponding search space of a signaling length is that the part of the search volume of the corresponding initial ranging space formation of the control channel of said signaling length is meant: the control channel corresponding search space of a signaling length is some subclass in all corresponding initial ranging spaces of the control channel of said signaling length, perhaps increases or reduce the variation of CCE according to this subclass.
After subscriber equipment is confirmed corresponding control channel corresponding search space according to signaling length, can be in the search volume of confirming, the control channel of the signaling length that said search volume is comprised carries out blind Detecting.
Further, if in the method for control channel mapping, the control channel of the signaling length of appointment is mapped to preferential detection search volume, the control channel of the signaling length of non-appointment is mapped to expansion detects the search volume.Then corresponding; If the preferential control channel that has the signaling length of appointment in the search volume that detects; Then detect expansion and detect the control channel whether search volume exists the signaling length of non-appointment; Otherwise, do not detect expansion and detect the control channel whether search volume exists the signaling length of non-appointment.
Particularly, subscriber equipment except detecting the common search space, at first can confirm preferentially to detect the signaling length that whether exists this subscriber equipment corresponding in the search volume when the blind Detecting control channel.If subscriber equipment is at the preferential control channel that has detected the signaling length of oneself in the search volume that detects, subscriber equipment will continue to detect the search volume in expansion and detect.Behind the search volume that the intact all needs of blind Detecting detect, just stop.And if subscriber equipment does not detect the control channel of the signaling length of oneself in preferential detection search volume, then this subscriber equipment will can not continue to detect expansion detection search volume, directly stop to detect.
Control channel in the present embodiment for example can be PDCCH, but the embodiment of the invention is not limited to PDCCH.And the signaling length that present embodiment uses control channel as the description embodiment of example equally applicable to the form set or the signaling lengths sets of control channel.
In the present embodiment; Subscriber equipment can be according to original position, the size of definite search volume of the control channel of signaling length; In the search volume of confirming, detect then; Because the original position of search volume, size can reduce the probability of control channel collision in the network side flexible configuration.In addition; Distinguish preferential search volume, the expansion detection search volume detected; Can avoid subscriber equipment in all search volumes, to carry out unnecessary blind Detecting; Reduced the number of times of subscriber equipment blind Detecting control channel, and then the consumption of having saved subscriber equipment power, too much blind Detecting Problem-Error also avoided.
The structural representation of the transmitter that Fig. 6 provides for the embodiment of the invention four, as shown in Figure 6, this transmitter comprises first processing module 61 and/or second processing module 62.Wherein, First processing module 61 comprises: the first search volume determination module 611; Be used for for same polymerization level; According to the signaling length of the corresponding control channel of member carrier, confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first mapping block 612, be used for the control channel of said at least two identical signaling length is mapped to the corresponding search space that the first search volume determination module 611 is confirmed;
Second processing module 62 comprises: the second search volume determination module 621; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second mapping block 622, be used for the control channel of said at least two different signaling length is mapped to the corresponding search space that the second search volume determination module 621 is confirmed respectively.
Further, the first search volume determination module 611 can comprise: first confirms unit 6111 or second definite unit 6112.
Wherein, First confirms unit 6111; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume.Second confirms unit 6112; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume.
The second search volume determination module 621 comprises: the 3rd confirms unit 6211 or the 4th definite unit 6212.
Wherein, The 3rd confirms unit 6211; Be used to the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.The 4th confirms unit 6212; Be used to the control channel of at least two corresponding different signaling length of same member carrier; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
Further, the first search volume determination module 611 and/or the second search volume determination module 621 can also comprise: position determination unit 63 and/or initial ranging space cell 64.Wherein position determination unit 63, are used for confirming the original position and the size in said control channel corresponding search space.Initial ranging space cell 64 is used for the initial ranging space corresponding according to the control channel of said signaling length, confirms the control channel corresponding search space of said signaling length.
Wherein, position determination unit 63 comprises:
Original position is confirmed subelement 631, is used for confirming the original position in said control channel corresponding search space according to signaling length mark or signaling length group id; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.Concrete grammar can be with reference to the associated description in the embodiment of the invention one, two.
Initial ranging space cell 64 comprises: the first initial ranging spatial sub unit 641, the second initial ranging spatial sub unit 642 or the 3rd initial ranging spatial sub unit 643 also comprise the 4th initial ranging spatial sub unit 644.
The first initial ranging spatial sub unit 641 wherein; Be used for confirming the initial ranging space of each member carrier correspondence, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.
The second initial ranging spatial sub unit 642, the corresponding initial ranging space of control channel of each the signaling length that is used for confirming that each member carrier is corresponding; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence.
The 3rd initial ranging spatial sub unit 643; After being used for said member carrier divided into groups; Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.
The 4th initial ranging spatial sub unit 644; If the signaling length of the control channel that the signaling length that is used for the corresponding control channel of member carrier and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; If and/or a signaling length of the corresponding control channel of signaling length of the corresponding control channel of member carrier and other one or more member carriers is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers
Particularly, initial ranging space cell 64 can comprise multiple situation according to the method in the corresponding initial ranging space of the control channel of signaling length:
The initial ranging space that each member carrier is corresponding is confirmed in situation one, the first initial ranging spatial sub unit 641, and the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.
At this moment, can according in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier is corresponding.
The corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding is confirmed in situation two, the second initial ranging spatial sub unit 642; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence.
At this moment, can be according to signaling length mark or signaling length group id, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding; Or according in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding.
The initial ranging space that each member carrier group is corresponding is confirmed in situation the three, the 3rd initial ranging spatial sub unit 643, and the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.When situation three, this transmitter can also comprise grouped element, is used for said member carrier is divided into groups.The method of wherein dividing into groups can include but not limited to: each is divided into one group to the uplink and downlink member carrier; The member carrier that maybe will have the identical traffic pattern is divided into one group; The member carrier that maybe will have same transmission bandwidth is divided into one group; The member carrier that maybe will have an identical traffic number of antennas is divided into one group etc.
At this moment, can according in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier group is corresponding.
In the present embodiment, the initial ranging space cell is confirmed the concrete grammar in the initial ranging space that the control channel of said signaling length is corresponding, can be with reference to the associated description in the embodiment of the invention one, two.
Initial ranging space cell 64 is confirmed after the corresponding initial ranging space of the control channel of said signaling length; The initial ranging space that the 4th initial ranging spatial sub unit 644 is corresponding according to the control channel of said signaling length; Confirm the control channel corresponding search space of said signaling length, specifically comprise:
If the signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; And/or
If a signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.Specifically can be with reference to the associated description in the embodiment of the invention one, two.
Again further; The control channel corresponding search space that the first search volume determination module 611 and/or the second search volume determination module 621 also are used for definite signaling length is set to the preferential search volume of detecting, and the control channel corresponding search space of non-deterministic signaling length is set to expand the search volume of detection.
The transmitter that present embodiment provides is for same polymerization level, according to the signaling length of control channel different search volumes can be set, and can reduce the conflict of control channel.And; Transmitter can also make corresponding identical control channel signaling length control channel corresponding search space overlap or overlap; To reduce the number of times of UE blind Detecting; Make that perhaps the control channel search volume of corresponding different signaling length is not overlapping, with the corresponding signaling length in implicit expression notice this search volume of UE, to save signaling consumption.And transmitter can also arrive the control channel corresponding search spatial mappings of the signaling length of confirming the preferential search volume of detecting; So that UE can be preferentially in the control channel corresponding search space of the signaling length of confirming; Detect control channel, reduce the blind Detecting number of times.
The structural representation of the receiving equipment that Fig. 7 provides for the embodiment of the invention five, as shown in Figure 7, this receiving equipment comprises: first processing module 71 and/or second processing module 72.Wherein, First processing module 71 comprises: the first search volume determination module 711; Be used for for same polymerization level; According to the signaling length of the corresponding control channel of member carrier, confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first detection module 712, be used in the said identical search volume that the first search volume determination module 711 is confirmed, detect the control channel of the signaling length that said identical search volume comprises;
Second processing module 72 comprises: the second search volume determination module 721; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second detection module 722, be used in the said different search volume of confirming at the second search volume determination module 721, detect the control channel of the signaling length that said different search volume comprises respectively.
Further, the first search volume determination module 711 can also comprise: first confirms unit 7111 or second definite unit 7112.
Wherein, First confirms unit 7111; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume.Second confirms unit 7112; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume.
The second search volume determination module 721 comprises: the 3rd confirms unit 7211 or the 4th definite unit 7212.
Wherein, The 3rd confirms unit 7211; Be used to the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.The 4th confirms unit 7212; Be used to the control channel of at least two corresponding different signaling length of same member carrier; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
The first search volume determination module 711 and/or the said second search volume determination module 721 can also comprise: position determination unit 73 and/or initial ranging space cell 74.
Wherein, position determination unit 73 is used for confirming the original position and the size in said control channel corresponding search space.Initial ranging space cell 74 is used for the initial ranging space corresponding according to the control channel of said signaling length, confirms the control channel corresponding search space of said signaling length.Specifically can be with reference to the associated description of the embodiment of the invention one, two.
Further, position determination unit 73 comprises:
Original position is confirmed subelement 731, is used for confirming the original position in said control channel corresponding search space according to signaling length mark or signaling length group id; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.
Initial ranging space cell 74 comprises: the first initial ranging spatial sub unit 741, the second initial ranging spatial sub unit 742 or the 3rd initial ranging spatial sub unit 743 also comprise the 4th initial ranging spatial sub unit 744.
The first initial ranging spatial sub unit 741 wherein; Be used for confirming the initial ranging space of each member carrier correspondence, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier.
The second initial ranging spatial sub unit 742, the corresponding initial ranging space of control channel of each the signaling length that is used for confirming that each member carrier is corresponding; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence.
The 3rd initial ranging spatial sub unit 743; After being used for said member carrier divided into groups; Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group; With
The 4th initial ranging spatial sub unit 744; If the signaling length of the control channel that the signaling length that is used for the corresponding control channel of member carrier and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; If and/or a signaling length of the corresponding control channel of signaling length of the corresponding control channel of member carrier and other one or more member carriers is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.
Further; After the first search volume determination module 711 is confirmed control channel corresponding search space according to signaling length; First detection module 712 also is used for: in the said identical search volume of confirming, the control channel of the signaling length that said identical search volume is comprised carries out blind Detecting.After the second search volume determination module is confirmed control channel corresponding search space according to signaling length; Second detection module also is used for: in the said different search volume of confirming, the control channel of the signaling length that said different search volume is comprised carries out blind Detecting.
In addition; When comprising preferential detection search volume in the search volume; If there is the control channel of the signaling length of confirming in the search volume of preferentially detecting, then the first detection module 712 and/or second detection module 722 detect and expand the control channel whether search volume of detecting exists non-deterministic signaling length; If there is not the control channel of definite signaling length in the preferential search volume of detecting, then the first detection module 712 and/or second detection module 722 do not detect and expand the control channel whether search volume of detecting exists non-deterministic signaling length.
Receiving equipment in the present embodiment can be UE.The present embodiment receiving equipment can be confirmed the search volume for same polymerization level according to the signaling length of control channel, and in the search volume, detects the concrete grammar of control channel, can be with reference to the associated description in the embodiment of the invention one.
Present embodiment, the receiving equipment that provides for same polymerization level, can be confirmed the search volume according to the signaling length of control channel, thereby in this search volume, detects the control channel of this signaling length.And because the identical member carrier corresponding search space of signaling length of corresponding control channel can be overlapping or partly overlapping, so the number of times of UE blind Detecting can reduce.And UE preferentially detects the control channel corresponding search space of the signaling length of confirming, also can further reduce the number of times of blind Detecting.
Need to prove at last; One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium, and this program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (ROM) or stores memory body (RAM) etc. at random.
Each functional unit in the embodiment of the invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If said integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
Above-mentioned specific embodiment is not in order to restriction the present invention; For those skilled in the art; All under the prerequisite that does not break away from the principle of the invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (28)

1. the method for a control channel mapping is characterized in that, comprising:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two identical signaling length is confirmed the corresponding search space; Make the control channel of said at least two identical signaling length use identical search volume, the control channel of said at least two identical signaling length is mapped to definite corresponding search space; And/or
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two different signaling length is confirmed the corresponding search space respectively; Make at the control channel of at least two different signaling length described at least one time transmission unit and use different search volumes, the control channel of said at least two different signaling length is mapped to definite corresponding search space respectively.
2. the method for control channel mapping according to claim 1 is characterized in that, the said control channel of at least two identical signaling length that makes uses identical search volume, comprising:
Make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or
Make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume.
3. the method for control channel mapping according to claim 1; It is characterized in that; Said is the definite respectively corresponding search space of control channel of at least two different signaling length; Make control channel use different search volumes, comprising at least two different signaling length described at least one time transmission unit:
Be the control channel of at least two corresponding different signaling length of different members carrier wave, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or
Be the control channel of at least two corresponding different signaling length of same member carrier, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
4. the method for shining upon according to each described control channel among the claim 1-3; It is characterized in that; Saidly confirm corresponding search space or said for the control channel of at least two identical signaling length and be that the control channel of at least two different signaling length confirms the corresponding search space respectively, comprising:
Confirm the original position and the size in said control channel corresponding search space.
5. the method for control channel mapping according to claim 4 is characterized in that, the said original position of confirming said control channel corresponding search space comprises:
According to signaling length mark or signaling length group id, confirm the original position in said control channel corresponding search space; Or
According to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.
6. the method for shining upon according to each described control channel among the claim 1-3; It is characterized in that; Saidly confirm corresponding search space or said for the control channel of at least two identical signaling length and be that the control channel of at least two different signaling length confirms the corresponding search space respectively, comprising:
The control channel corresponding search space of said signaling length is confirmed in the initial ranging space corresponding according to the control channel of said signaling length.
7. the method for control channel mapping according to claim 6 is characterized in that, the initial ranging space that the control channel of said signaling length is corresponding obtains through following steps:
Confirm the initial ranging space that each member carrier is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier;
Perhaps obtain through following steps:
Confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding;
If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or
If have two different signaling length at least in the signaling length of same member carrier correspondence, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit.
8. the method for control channel mapping according to claim 6 is characterized in that, also comprises:
After said member carrier divided into groups, the initial ranging space that the control channel of said signaling length is corresponding obtained through following steps:
Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.
9. the method for control channel mapping according to claim 7 is characterized in that, the said initial ranging space of confirming that each member carrier is corresponding comprises:
According in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier is corresponding;
The said corresponding initial ranging space of control channel of confirming each signaling length that each member carrier is corresponding comprises:
According to signaling length mark or signaling length group id, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding; Or
According in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that the control channel of each signaling length that each member carrier is corresponding is corresponding.
10. the method for control channel mapping according to claim 8 is characterized in that, the said initial ranging space of confirming that each member carrier group is corresponding comprises:
According in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the original position in the initial ranging space that each member carrier group is corresponding.
11. the method for control channel according to claim 6 mapping is characterized in that, the said initial ranging space corresponding according to the control channel of said signaling length confirmed the control channel corresponding search space of said signaling length to comprise:
If the signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; And/or
If a signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.
12. the method for control channel according to claim 8 mapping is characterized in that, said said member carrier is divided into groups, and comprises following arbitrary step or its combination:
Each is divided into one group to the uplink and downlink member carrier; Or
The member carrier that will have the identical traffic pattern is divided into one group; Or
The member carrier that will have same transmission bandwidth is divided into one group; Or
The member carrier that will have the identical traffic number of antennas is divided into one group.
13. the method that control channel detects is characterized in that, comprising:
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two identical signaling length is confirmed the corresponding search space; Make the control channel of said at least two identical signaling length use identical search volume, in the said identical search volume of confirming, detect the control channel of the signaling length that said identical search volume comprises; And/or
For same polymerization level; Signaling length according to the corresponding control channel of member carrier; For the control channel of at least two different signaling length is confirmed the corresponding search space respectively; Make at the control channel of at least two different signaling length described at least one time transmission unit and use different search volumes, in the said different search volume of confirming, detect the control channel of the signaling length that said different search volume comprises respectively.
14. the method that control channel according to claim 13 detects is characterized in that,
The said control channel of at least two identical signaling length that makes uses identical search volume, comprising:
Make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or
Make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume;
Said is the definite respectively corresponding search space of control channel of at least two different signaling length, makes the control channel at least two different signaling length described at least one time transmission unit use different search volumes, comprising:
Be the control channel of at least two corresponding different signaling length of different members carrier wave, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or
Be the control channel of at least two corresponding different signaling length of same member carrier, confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
15. method according to claim 13 or 14 described control channels detections; It is characterized in that; Saidly confirm corresponding search space or said for the control channel of at least two identical signaling length and be that the control channel of at least two different signaling length confirms the corresponding search space respectively, comprising:
Confirm the original position and the size in said control channel corresponding search space.
16. the method that control channel according to claim 15 detects is characterized in that, the said original position of confirming said control channel corresponding search space comprises:
According to signaling length mark or signaling length group id, confirm the original position in said control channel corresponding search space; Or
According to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space.
17. method according to claim 13 or 14 described control channels detections; It is characterized in that; Saidly confirm corresponding search space or said for the control channel of at least two identical signaling length and be that the control channel of at least two different signaling length confirms the corresponding search space respectively, comprising:
The control channel corresponding search space of said signaling length is confirmed in the initial ranging space corresponding according to the control channel of said signaling length.
18. the method that control channel according to claim 17 detects is characterized in that, the initial ranging space that the control channel of said signaling length is corresponding obtains through following steps:
Confirm the initial ranging space that each member carrier is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier;
Perhaps obtain through following steps:
Confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding;
If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or
If have two different signaling length at least in the signaling length of same member carrier correspondence, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit;
Perhaps obtain through following steps:
Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group.
19. the method that control channel according to claim 18 detects is characterized in that, the said initial ranging space of confirming that each member carrier is corresponding comprises:
According in customer equipment identification, spatial division, member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the initial ranging space that each member carrier is corresponding;
Confirm the corresponding initial ranging space of control channel of each signaling length that each member carrier is corresponding, comprising:
According to signaling length mark or signaling length group id, confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding; Or
According in signaling length mark or signaling length group id and customer equipment identification, control channel format identification (FID), spatial division, control channel corresponding member carrier sign, subframe sequence number or the polymerization level any one or more, confirm the corresponding initial ranging space original position of control channel of each signaling length that each member carrier is corresponding;
The said initial ranging space of confirming that each member carrier group is corresponding comprises:
According in customer equipment identification, spatial division, member carrier group id, subframe sequence number or the polymerization level any one or more, confirm the initial ranging space that each member carrier group is corresponding.
20. the method that control channel according to claim 17 detects is characterized in that, the said initial ranging space corresponding according to the control channel of said signaling length confirmed the control channel corresponding search space of said signaling length to comprise:
If the signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; And/or
If a signaling length of the control channel that signaling length of the control channel that member carrier is corresponding and other one or more member carriers are corresponding is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.
21. a transmitter is characterized in that, comprising:
First processing module and/or second processing module, wherein,
Said first processing module comprises: the first search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first mapping block, be used for the control channel of said at least two identical signaling length is mapped to the corresponding search space that the said first search volume determination module is confirmed;
Said second processing module comprises: the second search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second mapping block, be used for the control channel of said at least two different signaling length is mapped to the corresponding search space that the said second search volume determination module is confirmed respectively.
22. transmitter according to claim 21 is characterized in that,
The said first search volume determination module comprises:
First confirms the unit; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or
Second confirms the unit; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume;
The said second search volume determination module comprises:
The 3rd confirms the unit; Be used to the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or
The 4th confirms the unit; Be used to the control channel of at least two corresponding different signaling length of same member carrier; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
23., it is characterized in that said first search volume determination module and/or the said second search volume determination module also comprise according to claim 21 or 22 described transmitters:
Position determination unit is used for confirming the original position and the size in said control channel corresponding search space; And/or
The initial ranging space cell is used for the initial ranging space corresponding according to the control channel of said signaling length, confirms the control channel corresponding search space of said signaling length.
24. transmitter according to claim 23 is characterized in that,
Said position determination unit comprises:
Original position is confirmed subelement, is used for confirming the original position in said control channel corresponding search space according to signaling length mark or signaling length group id; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space;
Said initial ranging space cell comprises: in the 4th initial ranging spatial sub unit and the first initial ranging spatial sub unit, the second initial ranging spatial sub unit, the 3rd initial ranging spatial sub unit any one, wherein,
The said first initial ranging spatial sub unit; Be used for confirming the initial ranging space of each member carrier correspondence, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier;
The said second initial ranging spatial sub unit, the corresponding initial ranging space of control channel of each the signaling length that is used for confirming that each member carrier is corresponding; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence;
Said the 3rd initial ranging spatial sub unit; After being used for said member carrier divided into groups; Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group;
Said the 4th initial ranging spatial sub unit; If the signaling length of the control channel that the signaling length that is used for the corresponding control channel of member carrier and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; If and/or a signaling length of the corresponding control channel of signaling length of the corresponding control channel of member carrier and other one or more member carriers is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.
25. a receiving equipment is characterized in that, comprising:
First processing module and/or second processing module, wherein,
Said first processing module comprises: the first search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of said at least two identical signaling length use identical search volume; And first detection module, be used in the said identical search volume that the said first search volume determination module is confirmed, detect the control channel of the signaling length that said identical search volume comprises;
Said second processing module comprises: the second search volume determination module; Be used for for same polymerization level; Signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space respectively for the control channel of at least two different signaling length, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; And second detection module, be used in the said different search volume of confirming at the said second search volume determination module, detect the control channel of the signaling length that said different search volume comprises respectively.
26. receiving equipment according to claim 25 is characterized in that,
The said first search volume determination module comprises:
First confirms the unit; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of different members carrier wave use identical search volume; Or
Second confirms the unit; Be used for signaling length according to the corresponding control channel of member carrier; Confirm the corresponding search space for the control channel of at least two identical signaling length, make the control channel of at least two corresponding identical signaling length of same member carrier use identical search volume;
The said second search volume determination module comprises:
The 3rd confirms the unit; Be used to the control channel of at least two corresponding different signaling length of different members carrier wave; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit; Or
The 4th confirms the unit; Be used to the control channel of at least two corresponding different signaling length of same member carrier; Confirm the corresponding search space respectively, make control channel use different search volumes at least two different signaling length described at least one time transmission unit.
27., it is characterized in that said first search volume determination module and/or the said second search volume determination module also comprise according to claim 25 or 26 described receiving equipments:
Position determination unit is used for confirming the original position and the size in said control channel corresponding search space; And/or
The initial ranging space cell is used for the initial ranging space corresponding according to the control channel of said signaling length, confirms the control channel corresponding search space of said signaling length.
28. receiving equipment according to claim 27 is characterized in that,
Said position determination unit comprises:
Original position is confirmed subelement, is used for confirming the original position in said control channel corresponding search space according to signaling length mark or signaling length group id; Or according to signaling length mark or signaling length group id; And in corresponding member carrier sign, subframe sequence number or the polymerization level of customer equipment identification, control channel format identification (FID), spatial division, control channel any one or more, confirm the original position in said control channel corresponding search space;
Said initial ranging space cell comprises: in the 4th initial ranging spatial sub unit and the first initial ranging spatial sub unit, the second initial ranging spatial sub unit, the 3rd initial ranging spatial sub unit any one, wherein,
The said first initial ranging spatial sub unit; Be used for confirming the initial ranging space of each member carrier correspondence, the initial ranging space that the control channel of each signaling length that wherein same member carrier is corresponding is corresponding is the initial ranging space of said same member carrier; Or
The said second initial ranging spatial sub unit, the corresponding initial ranging space of control channel of each the signaling length that is used for confirming that each member carrier is corresponding; If have two identical signaling length at least in the signaling length of same member carrier correspondence, then make the control channel of said at least two identical signaling length use identical initial ranging space; And/or, then make control channel use different initial ranging spaces at least two different signaling length described at least one time transmission unit if having two different signaling length at least in the signaling length of same member carrier correspondence; Or
Said the 3rd initial ranging spatial sub unit; After being used for said member carrier divided into groups; Confirm the initial ranging space that each member carrier group is corresponding, the initial ranging space that the control channel of each signaling length that wherein same member carrier group is corresponding is corresponding is the initial ranging space of said same member carrier group; With
Said the 4th initial ranging spatial sub unit; If the signaling length of the control channel that the signaling length that is used for the corresponding control channel of member carrier and other one or more member carriers are corresponding is different, the initial ranging space of the control channel corresponding search space of a then said signaling length and the control channel of said signaling length correspondence is identical or part is identical; If and/or a signaling length of the corresponding control channel of signaling length of the corresponding control channel of member carrier and other one or more member carriers is identical, the control channel corresponding search space of a then said signaling length is search volume all or part of of the corresponding initial ranging space formation of the control channel of the corresponding said signaling length of the corresponding initial ranging space of the control channel of the corresponding said signaling length of a said member carrier and said other one or more member carriers.
CN201210325325.8A 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect Active CN102801503B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210325325.8A CN102801503B (en) 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910165300A CN101998526B (en) 2009-08-13 2009-08-13 Method for controlling channel mapping and method and device for controlling channel detection
CN201210325325.8A CN102801503B (en) 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200910165300A Division CN101998526B (en) 2009-06-16 2009-08-13 Method for controlling channel mapping and method and device for controlling channel detection

Publications (2)

Publication Number Publication Date
CN102801503A true CN102801503A (en) 2012-11-28
CN102801503B CN102801503B (en) 2015-08-19

Family

ID=43787861

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201210325361.4A Active CN102801504B (en) 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect
CN201210325325.8A Active CN102801503B (en) 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect
CN200910165300A Active CN101998526B (en) 2009-06-16 2009-08-13 Method for controlling channel mapping and method and device for controlling channel detection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201210325361.4A Active CN102801504B (en) 2009-08-13 2009-08-13 The method and apparatus that the method that control channel maps, control channel detect

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200910165300A Active CN101998526B (en) 2009-06-16 2009-08-13 Method for controlling channel mapping and method and device for controlling channel detection

Country Status (1)

Country Link
CN (3) CN102801504B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107733591A (en) * 2016-08-10 2018-02-23 北京信威通信技术股份有限公司 Transmission method and device
CN109802758A (en) * 2017-11-16 2019-05-24 诺基亚技术有限公司 Manage the control channel blind search between the search space in new radio
CN111867019A (en) * 2019-04-30 2020-10-30 中国移动通信有限公司研究院 Information transmission method, device, related equipment and storage medium

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102355340B (en) 2011-08-12 2017-02-08 中兴通讯股份有限公司 method and device for transmitting and receiving downlink control information
KR102014793B1 (en) * 2011-08-19 2019-08-27 엘지전자 주식회사 Method for base station transmitting downlink control channel in wireless communication system and apparatus for same
JP5858047B2 (en) * 2011-09-30 2016-02-10 富士通株式会社 Wireless communication system, base station, mobile station, and wireless communication method
CN103200684B (en) 2012-01-09 2016-01-13 华为技术有限公司 A kind of control channel transmission, method of reseptance and base station, subscriber equipment
CN109921890A (en) * 2012-09-26 2019-06-21 华为技术有限公司 A kind of control channel detection method and user equipment
US9949248B2 (en) * 2013-08-20 2018-04-17 Qualcomm Incorporated Restrictions on control channel scheduling
CN105379344A (en) * 2014-03-21 2016-03-02 华为技术有限公司 Downlink control information transmission method and related device
US9887558B2 (en) * 2015-09-09 2018-02-06 Cpg Technologies, Llc Wired and wireless power distribution coexistence
US11057166B2 (en) * 2018-02-16 2021-07-06 Qualcomm Incorporated Virtual search spaces for beam indication
CN109196798B (en) * 2018-08-31 2021-11-09 北京小米移动软件有限公司 Auxiliary method and device for detecting physical downlink control channel
US11877302B2 (en) * 2020-01-07 2024-01-16 Qualcomm Incorporated Control channel element and blind decode limits for physical downlink control channel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101242625B (en) * 2007-02-06 2011-08-03 华为技术有限公司 A method, system and device for control channel resource mapping
BRPI0813133B1 (en) * 2007-06-20 2020-05-12 Google Technology Holdings LLC METHOD IN A BASE UNIT FOR DETERMINING CANDIDATE RESEARCH SPACES TO THE CONTROL CHANNEL FOR A PARTICULAR REMOTE UNIT, BASE UNIT AND METHOD IN A REMOTE DEVICE FOR THE IDENTIFICATION OF ONE OR MORE CANDIDATE RESEARCH SPACES FOR THE CANDIDATE RESEARCH CHANNEL CONTROL INFORMATION
WO2009041785A2 (en) * 2007-09-28 2009-04-02 Lg Electronics Inc. Method for detecting control information in wireless communication system
KR101448309B1 (en) * 2007-09-28 2014-10-08 엘지전자 주식회사 Method of monitoring downlink control channel in wireless communication system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107733591A (en) * 2016-08-10 2018-02-23 北京信威通信技术股份有限公司 Transmission method and device
CN109802758A (en) * 2017-11-16 2019-05-24 诺基亚技术有限公司 Manage the control channel blind search between the search space in new radio
US11191011B2 (en) 2017-11-16 2021-11-30 Nokia Technologies Oy Managing control channel blind searches between search spaces in new radio
CN109802758B (en) * 2017-11-16 2021-12-28 诺基亚技术有限公司 Managing control channel blind searches between search spaces in a new radio
CN111867019A (en) * 2019-04-30 2020-10-30 中国移动通信有限公司研究院 Information transmission method, device, related equipment and storage medium
CN111867019B (en) * 2019-04-30 2022-04-08 中国移动通信有限公司研究院 Information transmission method, device, related equipment and storage medium

Also Published As

Publication number Publication date
CN102801504A (en) 2012-11-28
CN101998526B (en) 2012-08-29
CN101998526A (en) 2011-03-30
CN102801504B (en) 2016-03-30
CN102801503B (en) 2015-08-19

Similar Documents

Publication Publication Date Title
CN101998526B (en) Method for controlling channel mapping and method and device for controlling channel detection
US11419115B2 (en) Method and apparatus of data transmission in next generation cellular networks
US11683788B2 (en) System and method for data channel transmission and reception
CN108111281B (en) Data channel parameter configuration method and device
CN101925109B (en) Method and device for controlling channel mapping
CN101801097B (en) Method for indicating physical uplink shared channel scheduling information
CN102845012B (en) For the method and system of uplink acknowledgement order in carrier aggregation wireless communication system
CN102204155B (en) Resource allocation
CN102082636B (en) Method, base station and system for indicating channel state information CSI feedback
CN101778449B (en) A kind of downlink control information transmission method and base station
KR101767021B1 (en) Mapping method and apparatus for a search space of a physical downlink control channel
CN109565338A (en) Method and apparatus for reporting channel status information in mobile communication system
US20150208387A1 (en) Resource allocation signalling
CN116614847A (en) Transmission parameter determining method and device
CN107113841A (en) Method and apparatus for the uplink control signaling using extensive carrier aggregation
CN108111275A (en) The collocation method and device of reference signal information
CN102905379B (en) The reception of control channel and sending method and device
CN107210886A (en) The method and apparatus for transmitting the control channel for terminal in a wireless communication system
CN102858014A (en) Sending and receiving method and equipment of control signaling
CN101222260A (en) Device and method for transmitting control signaling
CN102938690A (en) Sending method, receiving method and device of response messages
CN102158979A (en) PDCCH (Packet Dedicated Control Channel) signaling sending and receiving method, base station, UE (User Equipment) and system
CN102438320B (en) Downlink dispatching information configuring method and equipment
CN102123016A (en) Method for determining acknowledgement (ACK)/negative acknowledgement (NACK) channel
CN108141850A (en) Aerogram

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant