CN103312435A - Method and device for modulation of control channel or determination of transmission layer - Google Patents
Method and device for modulation of control channel or determination of transmission layer Download PDFInfo
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- CN103312435A CN103312435A CN2012100618109A CN201210061810A CN103312435A CN 103312435 A CN103312435 A CN 103312435A CN 2012100618109 A CN2012100618109 A CN 2012100618109A CN 201210061810 A CN201210061810 A CN 201210061810A CN 103312435 A CN103312435 A CN 103312435A
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Abstract
The embodiment of the invention provides a method and a device for modulation of a first physics downlink control channel or determination of a transmission layer, relates to the communication field, and realizes an instruction of a UE to the modulation method and the transmission layer. The method comprises: receiving configuration information sent by a base station, determining searching space according to the configuration information, determining a subclass in the searching space according to the searching space, and determining the modulation method of the control channel and the transmission layer. The subclass in the searching space is a set of at least one candidate first physics downlink control channel in the searching space. The embodiment of the invention is used for determining the modulation method of the physics downlink control channel or the transmission layer.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of modulation of the first Physical Downlink Control Channel or definite method and apparatus of the transmission number of plies.
Background technology
At Long Term Evolution (Long Term Evolution, abbreviation LTE) in the downlink transfer of Rel-8/9/10 communication system, evolved base station (evolved Node Base, abbreviation eNB) defined PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), its characteristic comprises the fixing QPSK of employing modulation, and adopt that the individual layer mode of single antenna or transmit diversity is transmitted etc.
EPDCCH (Enhanced Physical Downlink Control Channel, strengthen Physical Downlink Control Channel, it is the new down control channel of introducing in LTE Release-11, also can be called the first Physical Downlink Control Channel, its characteristic comprises can adopt QPSK modulation or 16QAM modulation, adopt the transmission number of plies of multilayer or individual layer to transmit, but the search volume for ePDCCH, the search volume of available technology adopting PDDCH represents, wherein, the overall constituted mode in the search volume of PDDCH, as described below:
PDCCH is by 1/2/4/8 control channel unit (Control Channel Element, be called for short CCE) form, wherein, the CCE number that forms each PDCCH is to be determined by the channel of the size of PDCCH and PDCCH institute relative user equipment (User Equipment is called for short UE).PDCCH has 4 kinds of polymerization ranks (Aggregation Level is called for short AL), is respectively 1,2,4,8, represents that respectively PDCCH is mapped to 1,2, among 4,8 CCE.Wherein, for each polymerization rank, corresponding search volume size and effective PDCCH number are arranged, and these polymerization ranks and search volume corresponding to polymerization rank have consisted of the search volume of the PDCCH of UE, and UE searches in the search volume of appointment and obtains effective PDCCH.Concrete, the definite of the search volume of the PDCCH of UE can adopt following formula:
LTE has defined two kinds of frame structure types, i.e. frame structure Class1 and frame structure type 2.Frame structure type 2 is used in the TDD system, has a special subframe (special subframe), comprises DwPTS (descending navigation time slot) in the special subframe, three territories of GP (protection interval) and UpPTS (up navigation time slot).Wherein DwPTS is used for transmitting descending control and data message.The configuration of different special subframes, the OFDM symbol numbers that DwPTS comprises is different: the configuration 0 of special subframe, 3 OFDM symbols that DwPTS comprises; The configuration 1 of special subframe, 9 OFDM symbols that DwPTS comprises; The configuration 2 of special subframe, 10 OFDM symbols that DwPTS comprises; The configuration 3 of special subframe, 11 OFDM symbols that DwPTS comprises; The configuration 4 of special subframe, 12 OFDM symbols that DwPTS comprises; The configuration 5 of special subframe, 3 OFDM symbols that DwPTS comprises; The configuration 6 of special subframe, 9 OFDM symbols that DwPTS comprises; The configuration 7 of special subframe, 10 OFDM symbols that DwPTS comprises; The configuration 8 of special subframe, 11 OFDM symbols that DwPTS comprises.
Two kinds of modulation systems or two kinds of transmission numbers of plies of adopting for ePDCCH in the prior art need to define modulation system or the number of plies that control signal is indicated ePDCCH, and need to depend on modulation system or the transmission number of plies of obtaining ePDCCH by the control channel that detects other, the transmission of error may occur like this.In addition, for two kinds of modulation systems or two kinds of transmission numbers of plies that ePDCCH adopts, UE can not be indicated to concrete the sort of modulation system and the transmission number of plies of adopting of ePDCCH.
Summary of the invention
Embodiments of the invention provide a kind of modulation of the first Physical Downlink Control Channel or definite method and apparatus of the transmission number of plies, have realized that UE is to modulation system or the indication of the transmission number of plies.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, the embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method of the transmission number of plies, and described method comprises:
Receive the configuration information that the base station sends, determine the search volume according to described configuration information;
According to described search volume, determine the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume;
According to the subset in the described search volume, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
On the one hand, the embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or has transmitted really locking equipment of the number of plies, and this equipment comprises:
Receiver is used for receiving the configuration information that the base station sends, and determines the search volume according to described configuration information;
The first determining unit is used for according to described search volume, determines the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume;
The second determining unit also is used for the subset according to described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method and apparatus of the transmission number of plies, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding subset according to this search volume, in the modulation system of determining control channel by corresponding subset or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Definite method flow schematic diagram of the modulation of a kind of the first Physical Downlink Control Channel that Fig. 1 provides for the embodiment of the invention or the transmission number of plies;
Definite method flow schematic diagram of the modulation of another kind the first Physical Downlink Control Channel that Fig. 2 provides for the embodiment of the invention or the transmission number of plies;
Definite method flow schematic diagram of the modulation of another the first Physical Downlink Control Channel that Fig. 3 provides for the embodiment of the invention or the transmission number of plies;
Definite method flow schematic diagram of the modulation of another the first Physical Downlink Control Channel that Fig. 4 provides for the embodiment of the invention or the transmission number of plies;
The modulation of a kind of control channel that Fig. 5 provides for the embodiment of the invention or the transmission number of plies be the locking equipment structural representation really;
The modulation of the another kind of control channel that Fig. 6 provides for the embodiment of the invention or the transmission number of plies be the locking equipment structural representation really.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, 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 belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
Definite method of the modulation of the first Physical Downlink Control Channel that the embodiment of the invention provides or the transmission number of plies, as shown in Figure 1, the method step comprises:
The configuration information that S101, reception base station send is determined the search volume according to described configuration information.
S102, according to described search volume, determine the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume.
S103, according to the subset in the described search volume, determine described the first Physical Downlink Control Channel modulation system or the transmission number of plies.
This first Physical Downlink Control Channel comprises: the Physical Downlink Control Channel of enhancing, relaying Physical Downlink Control Channel can also comprise other Physical Downlink Control Channel.
Optionally, the executive agent of described step S101～S103 can be user equipment (UE), and the present invention is not restricted this.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method of the transmission number of plies, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding subset according to this search volume, in the modulation system of determining control channel by corresponding subset or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
Embodiment two
Definite method of the modulation of the first Physical Downlink Control Channel that the embodiment of the invention provides or the transmission number of plies, this first Physical Downlink Control Channel comprises: the Physical Downlink Control Channel of enhancing, relaying Physical Downlink Control Channel can also comprise other Physical Downlink Control Channel.
Need to prove the Physical Downlink Control Channel of the first Physical Downlink Control Channel in the embodiment of the invention for strengthening.
As shown in Figure 2, the method step comprises:
S201, UE receive the configuration information that the base station sends, and determine the search volume according to described configuration information.
Wherein, this configuration information comprises: RNTI of the sum of CCE, subscriber equipment in the information of broadcast message and user's special use, the configuration of special subframe, timeslot number, the subframe (Radio Network Temporary Identifier) etc.
In addition, this search volume is the set of Physical Downlink Control Channel of one group of candidate's enhancing.
S202, UE be according to described search volume, determines the polymerization rank of the Physical Downlink Control Channel that strengthens in the described search volume.
Wherein, the polymerization rank has the N kind, and concrete can be { 1} or { 1,2} or { 1,2,4} or { 1,2,4,8}, when N=4, this polymerization rank is { 1,2,4,8} need to prove, polymerization rank most species describes as an example of N=4 example among the present invention, but the polymerization level categories can also be other, such as 1,2,3, the embodiment of the invention is not limited to this.
S203, UE determine modulation system or the transmission number of plies of the Physical Downlink Control Channel of described enhancing according to the polymerization rank of the Physical Downlink Control Channel that strengthens described in the described search volume.
Concrete, described modulation system comprises: 16QAM modulation or QPSK modulation; The described transmission number of plies adopts one deck mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens, and perhaps, adopts two-layer mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens.
Further, the polymerization rank of described Physical Downlink Control Channel according to strengthening described in the described search volume, determine that modulation system or the front described method of the transmission number of plies of the Physical Downlink Control Channel of described enhancing also comprises:
UE receives described polymerization rank and corresponding modulation system or the transmission number of plies of described polymerization rank that described base station sends by high-level signaling.
Exemplary, described base station is with described polymerization rank and corresponding modulation system or the transmission number of plies of described polymerization rank, send to subscriber equipment by high-level signaling, so that subscriber equipment, is determined modulation system or the transmission number of plies of the Physical Downlink Control Channel of enhancing according to described polymerization rank.
Further, the polymerization rank of described Physical Downlink Control Channel according to strengthening described in the described search volume, determine described enhancing Physical Downlink Control Channel modulation system or the transmission number of plies before, described method also comprises:
The corresponding relation of the described polymerization rank of UE predefine and described modulation system; Or the corresponding relation of the described polymerization rank of predefine and the described transmission number of plies.
Exemplary, the corresponding relation of the described polymerization rank of subscriber equipment predefine and described modulation system; Or the corresponding relation of the described polymerization rank of predefine and the described transmission number of plies, and according to described polymerization rank, determine modulation system or the transmission number of plies of the Physical Downlink Control Channel of enhancing.
Need to prove, the corresponding relation of described polymerization rank and modulation system or the transmission number of plies can be arranged to the mapping table of described polymerization rank and modulation system or the transmission number of plies, also can be arranged to other pattern, and the present invention does not limit inferior.
Exemplary, the modulation system that described polymerization rank is corresponding or the transmission number of plies can be { 1} or { 1,2} or { Physical Downlink Control Channel employing 16QAM modulation or 2 layers of transmission of the enhancing of 1,2,4} for the polymerization rank.
In addition, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 1} or { 1,2} or { Physical Downlink Control Channel employing QPSK modulation or 1 layer of transmission of the enhancing of 1,2,4} for the polymerization rank.
Perhaps, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 1} or { 1,2} or { Physical Downlink Control Channel employing QPSK modulation or 2 layers of transmission of the enhancing of 1,2,4} for the polymerization rank.
Perhaps, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 1} or { 1,2} or { Physical Downlink Control Channel employing 16QAM modulation or 1 layer of transmission of the enhancing of 1,2,4} for the polymerization rank.
Further, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 2,4,8} or { 2,4} or { 2} or { 4} or { 4,8} or { Physical Downlink Control Channel employing QPSK modulation or 2 layers of transmission of the enhancing of 8} for the polymerization rank.
In addition, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 2,4 for the polymerization rank, 8} or { 2,4} or { 2} or { 4} or { 4,8} or { 8} or { Physical Downlink Control Channel employing 16QAM modulation or 1 layer of transmission of the enhancing of 2,8}.
Perhaps, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 2,4,8} or { 2,4} or { 2} or { 4} or { 4,8} or { Physical Downlink Control Channel employing 16QAM modulation or 2 layers of transmission of the enhancing of 8} for the polymerization rank.
Perhaps, corresponding modulation system or the transmission number of plies of described polymerization rank can be { 2,4 for the polymerization rank, 8} or { 2,4} or { 2} or { 4} or { 4,8} or { 8} or { Physical Downlink Control Channel employing QPSK modulation or 1 layer of transmission of the enhancing of 2,8}.
Need explanation to be, modulation system or the transmission number of plies of the polymerization rank indication in the embodiment of the invention can also be other, and the present invention is not restricted this.
Concrete, UE receives the configuration information that the base station sends, and according to this configuration information, determines the search volume, according to this search volume, determines corresponding polymerization rank in the search volume.Then, according to corresponding relation, indicate modulation system or the transmission number of plies of control channel, when the corresponding relation of polymerization rank and modulation system or the transmission number of plies is { 1} or { 1,2} or { 1,2, when the Physical Downlink Control Channel of the enhancing of 4} adopts 16QAM modulation or 2 layers of transmission, if it is 1 that UE determines the polymerization rank in this search volume, this moment, the Physical Downlink Control Channel that strengthens according to the polymerization rank indication of determining adopted 16QAM modulation or 2 layers of transmission according to above-mentioned corresponding relation.
Need to prove, described polymerization rank is the method for a class dividing subset, and namely described subset can be divided by different polymerization ranks, and a plurality of subset can form described search volume.
Concrete, for a certain definite polymerization rank, can corresponding obtain its corresponding CCE space, this space is a certain element in the subset, obtain different CCE spaces by different polymerization ranks, obtain a plurality of elements in the subset, form a subset by a plurality of elements of obtaining again.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method of the transmission number of plies, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding polymerization rank according to this search volume, in the modulation system of determining control channel by corresponding polymerization rank or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
Embodiment three
Definite method of the modulation of the first Physical Downlink Control Channel that the embodiment of the invention provides or the transmission number of plies, this first Physical Downlink Control Channel comprises: the Physical Downlink Control Channel of enhancing, relaying Physical Downlink Control Channel can also comprise other Physical Downlink Control Channel.
Need to prove the Physical Downlink Control Channel of the first Physical Downlink Control Channel in the embodiment of the invention for strengthening.
As shown in Figure 3, the method step comprises:
S301, UE receive the configuration information that the base station sends, and determine the search volume according to described configuration information.
This configuration information comprises: RNTI of the sum of CCE, subscriber equipment in the information of broadcast message and user's special use, the configuration of special subframe, timeslot number, the subframe (Radio Network Temporary Identifier) etc.
In addition, this search volume is the set of Physical Downlink Control Channel of one group of candidate's enhancing.
S302, UE determine the subspace in the described search volume according to described search volume; Wherein, described subspace is the Physical Downlink Control Channel set of the enhancing of the spatial composing of control channel unit corresponding at least one polymerization rank and described polymerization rank in the described search volume.
Wherein, it also can be a plurality of that the number of described subspace can be two, and the present invention is not restricted this.But in the present embodiment, only describe as two take the number of subspace.
S303, UE determine modulation system or the transmission number of plies of the Physical Downlink Control Channel of described enhancing according to the subspace in the described search volume.
Concrete, described modulation system comprises: 16QAM modulation or QPSK modulation; The described transmission number of plies adopts one deck mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens, and perhaps, adopts two-layer mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens.
Further, described according to described subspace, determine described enhancing Physical Downlink Control Channel modulation system or the transmission number of plies before, also comprise:
UE receives corresponding modulation system or the transmission number of plies in described subspace and described subspace that described base station sends by high-level signaling.
Exemplary described base station is with corresponding modulation system or the transmission number of plies in described subspace and described subspace, send to subscriber equipment by high-level signaling, so that subscriber equipment, is determined modulation system or the transmission number of plies of the Physical Downlink Control Channel of enhancing according to described subspace.
Further, described according to described subspace, before the modulation system of definite Physical Downlink Control Channel that strengthens or the transmission number of plies, also comprise:
The corresponding relation of the described subspace of UE predefine and modulation system; Or the described subspace of predefine and the corresponding relation that transmits the number of plies.
Exemplary, the corresponding relation of the described subspace of UE predefine and modulation system or the transmission number of plies, and according to described subspace, determine modulation system or the transmission number of plies of the Physical Downlink Control Channel of enhancing.
Need to prove, the corresponding relation of described polymerization rank and modulation system or the transmission number of plies can be arranged to the mapping table of described polymerization rank and modulation system or the transmission number of plies, also can be arranged to other pattern, and the present invention does not limit inferior.
Exemplary, the modulation system that described subspace is corresponding or the transmission number of plies can be that { Physical Downlink Control Channel of the enhancing of 1} adopts 16QAM modulation or 2 layers of transmission for the subspace.
In addition, corresponding modulation system or the transmission number of plies in described subspace can be that { Physical Downlink Control Channel of the enhancing of 1} adopts QPSK modulation or 1 layer of transmission for the subspace.
Perhaps, corresponding modulation system or the transmission number of plies in described subspace can be that { Physical Downlink Control Channel of the enhancing of 2} adopts 16QAM modulation or 2 layers of transmission for the subspace.
Perhaps, corresponding modulation system or the transmission number of plies in described subspace can be that { Physical Downlink Control Channel of the enhancing of 2} adopts QPSK modulation or 1 layer of transmission for the subspace.
Need to prove, modulation system or the transmission number of plies of the subspace indication in the embodiment of the invention can also be other, and the present invention is not restricted inferior.
In addition, also need to prove, the subspace is for { 1} represents the Physical Downlink Control Channel of front n candidate's enhancing in each polymerization rank, and for each polymerization rank, n can get different values.Such as the corresponding n=3 of polymerization rank 1,2,4,8 difference, 3,1,1.The subspace is for { 2} represents the Physical Downlink Control Channel of rear m candidate's enhancing in each polymerization rank, and for each polymerization rank, m can get different values.Such as the corresponding n=3 of polymerization rank 1,2,4,8 difference, 3,1,1.
Concrete, UE receives the configuration information that the base station sends, and according to this configuration information, determines the search volume, according to this search volume, determines corresponding subspace in the search volume.Then, according to corresponding comparison table, indicate modulation system or the transmission number of plies of control channel, when the corresponding relation of subspace and modulation system or the transmission number of plies be that { Physical Downlink Control Channel of the enhancing of 1} adopts 16QAM to modulate or during the transmission number of plies of 2 layers of transmission, if UE determines the subspace in this search volume and is { 1}, this moment, the Physical Downlink Control Channel that strengthens according to the subspace indication of determining adopted 16QAM modulation or 2 layers of transmission according to above-mentioned corresponding relation.
Need to prove, described subspace and described subset are relation arranged side by side, described subspace with described subset in the situation that the polymerization rank is identical, expression be identity set.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method of the transmission number of plies, by in the application scenarios of the first Physical Downlink Control Channel, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding subspace according to this search volume, in the modulation system of determining control channel by corresponding subspace or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
Embodiment four
Definite method of the modulation of the first Physical Downlink Control Channel that the embodiment of the invention provides or the transmission number of plies, this first Physical Downlink Control Channel comprises: the Physical Downlink Control Channel of enhancing, relaying Physical Downlink Control Channel can also comprise other Physical Downlink Control Channel.
Need to prove the Physical Downlink Control Channel of the first Physical Downlink Control Channel in the embodiment of the invention for strengthening.
As shown in Figure 4, the method step comprises:
S401, UE receive the configuration information that described base station sends, and determine the configuration of search volume and special subframe according to described configuration information.
S402, UE determine corresponding polymerization rank in the described search volume according to described search volume.
Wherein, the polymerization rank has the N kind, and concrete can be { 1} or { 1,2} or { 1,2,4} or { 1,2,4,8}, when N=4, this polymerization rank is { 1,2,4,8} need to prove, polymerization rank most species describes as an example of N=4 example among the present invention, but the polymerization level categories can also be other, such as 1,2,3, the embodiment of the invention is not limited to this.
The corresponding relation of the corresponding polymerization rank of the configuration of S403, the described special subframe of UE predefine and modulation system, or the corresponding polymerization rank of the configuration of the described special subframe of predefine and the corresponding relation that transmits the number of plies.
S404, UE determine modulation system or the transmission number of plies of the Physical Downlink Control Channel of described enhancing according to the corresponding described polymerization rank of the configuration of described special subframe.
Concrete, described modulation system comprises: 16QAM modulation or QPSK modulation; The described transmission number of plies adopts one deck mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens, and perhaps, adopts two-layer mode to transmit in the time of can transmitting for the Physical Downlink Control Channel that strengthens.
Further, according to polymerization rank described in the configuration of described special subframe, determine control channel modulation system or the transmission number of plies implementation method can also for:
Subscriber equipment pre-sets the corresponding relation of described polymerization rank corresponding in the configuration of described special subframe and modulation system or the transmission number of plies, and according to polymerization rank corresponding in the configuration of described special subframe, determine modulation system or the transmission number of plies of control channel.
Need to prove, the corresponding relation of described polymerization rank and modulation system or the transmission number of plies can be arranged to the mapping table of described polymerization rank and modulation system or the transmission number of plies, also can be arranged to other pattern, and the present invention does not limit inferior.
Exemplary, being configured in 1 or 2 or 6 or 7 of special subframe, the polymerization rank is { 2} or { 4} or { Physical Downlink Control Channel of the enhancing of 2,4} adopts 16QAM modulation or 2 layers of transmission; Perhaps being configured in 3 or 4 or 8 of special subframe, polymerization rank are { 1} or { 1,2} or { Physical Downlink Control Channel of the enhancing of 1,2,4} adopts 16QAM modulation or 2 layers of transmission;
In addition, being configured in 1 or 2 or 6 or 7 of special subframe, the polymerization rank is { 4} or { 4,8} or { Physical Downlink Control Channel of the enhancing of 8} adopts QPSK modulation or 1 layer of transmission;
Perhaps being configured in 3 or 4 or 8 of special subframe, { 2,4,8} or { 2,4} or { 2} or { 4} or { 4,8} or { Physical Downlink Control Channel of the enhancing of 8} adopts QPSK modulation or 1 layer of transmission.
Need explanation to be, modulation system or the transmission number of plies of the polymerization rank indication in the embodiment of the invention can also be other, and the present invention is not restricted this.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or definite method of the transmission number of plies, by in the application scenarios of the first Physical Downlink Control Channel, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding subspace according to this search volume, in the modulation system of determining control channel by corresponding subspace or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
Embodiment five
The modulation of the first Physical Downlink Control Channel that the embodiment of the invention provides or the transmission number of plies be locking equipment 40 really, and as shown in Figure 5, this equipment comprises:
The first determining unit 52 is used for according to described search volume, determines the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume;
The second determining unit 53 also is used for the subset according to described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
Further, described the first determining unit 52 also is used for according to described search volume, determines the polymerization rank of the first Physical Downlink Control Channel described in the described search volume;
Described the second determining unit 53 also is used for the polymerization rank according to the first Physical Downlink Control Channel described in the described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
Further, described receiver 51 also is used for receiving described polymerization rank and corresponding modulation system or the transmission number of plies of described polymerization rank that described base station sends by high-level signaling.
Further, this equipment also comprises:
The corresponding relation of the described polymerization rank of predefine and the described transmission number of plies.
Further, described the first determining unit 52 also is used for according to described search volume, determines the subspace in the described search volume; Wherein, described subspace is the first Physical Downlink Control Channel set of the spatial composing of control channel unit corresponding at least one polymerization rank and described polymerization rank in the described search volume;
Described the second determining unit 53 also is used for the subspace according to described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
Further, described receiver 51 also is used for receiving corresponding modulation system or the transmission number of plies in described subspace and described subspace that described base station sends by high-level signaling.
Further, described definition unit 54 also is used for the corresponding relation of the described subspace of predefine and modulation system; Or
The described subspace of predefine and the corresponding relation that transmits the number of plies.
Further, described receiver 51 also is used for receiving the configuration information that described base station sends, and determines the configuration of search volume and special subframe according to described configuration information;
Described definition unit 54 also is used for the corresponding polymerization rank of configuration of the described special subframe of predefine and the corresponding relation of modulation system, or the corresponding polymerization rank of the configuration of the described special subframe of predefine and the corresponding relation that transmits the number of plies;
Described the second determining unit 53 also is used for according to the corresponding described polymerization rank of the configuration of described special subframe, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
The embodiment of the invention provides a kind of modulation of the first Physical Downlink Control Channel or the indicating equipment of the transmission number of plies, configuration information according to the base station that receives, determine the search volume, and determine in the search volume corresponding subset according to this search volume, in the modulation system of determining control channel by corresponding subset or the transmission number of plies, thereby realize that UE is to modulation system or the indication of the transmission number of plies, avoided the definition control signal to indicate modulation system or the transmission number of plies of the first Physical Downlink Control Channel, do not need to depend on modulation system or the transmission number of plies of obtaining the first Physical Downlink Control Channel by the control channel that detects other yet, avoided the transmission of error.
The embodiment of the invention also provides a kind of processor, is used for receiving the configuration information that the base station sends, and determines the search volume according to described configuration information; According to described search volume, determine the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume; According to the subset in the described search volume, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.This processor can be connected with memory, this memory is used for the content of definite method of the adjustment of the first Physical Downlink Control Channel that action that this processor of information that this processor of storage processes carries out can provide with reference to above-described embodiment or the transmission number of plies, does not repeat them here.Further, described processor may reside in the subscriber equipment.
The embodiment of the invention also provides a kind of chip, and this chip is used for determining adjustment or the transmission number of plies of the first Physical Downlink Control Channel, and this chip can comprise above-mentioned processor.
The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematically, and for example, the division of described unit only is that a kind of logic function is divided, and during actual the realization other dividing mode can be arranged.For example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit comprises, also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, the form that also can adopt hardware to add SFU software functional unit realizes.
The above-mentioned integrated unit of realizing with the form of SFU software functional unit can be stored in the computer read/write memory medium.Above-mentioned SFU software functional unit is stored in the storage medium, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the part steps of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, abbreviation ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc or CD.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (20)
1. definite method of the modulation of a Physical Downlink Control Channel or the transmission number of plies is characterized in that, comprising:
Receive the configuration information that the base station sends, determine the search volume according to described configuration information;
According to described search volume, determine the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume;
According to the subset in the described search volume, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
2. described method according to claim 1 is characterized in that, and is described according to described search volume, determines that corresponding subset is in the described search volume: according to described search volume, determine the polymerization rank of the first Physical Downlink Control Channel described in the described search volume;
Described according to the subset in the described search volume, modulation system or the transmission number of plies of determining described the first Physical Downlink Control Channel are: according to the polymerization rank of the first Physical Downlink Control Channel described in the described search volume, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
3. described method according to claim 2 is characterized in that, described polymerization rank according to the first Physical Downlink Control Channel described in the described search volume, determine the modulation system or the transmission number of plies of described the first Physical Downlink Control Channel before, also comprise:
Receive described polymerization rank and corresponding modulation system or the transmission number of plies of described polymerization rank that described base station sends by high-level signaling.
4. described method according to claim 2 is characterized in that, described polymerization rank according to the first Physical Downlink Control Channel described in the described search volume, determine the modulation system or the transmission number of plies of described the first Physical Downlink Control Channel before, also comprise:
The corresponding relation of the described polymerization rank of predefine and described modulation system; Or
The corresponding relation of the described polymerization rank of predefine and the described transmission number of plies.
5. according to claim 3 or 4 described methods, it is characterized in that, the corresponding relation of described modulation system and the described transmission number of plies is:
Described polymerization rank is that { 1}, { 1,2}, { any one the first Physical Downlink Control Channel of 1,2,4} adopts 16QAM modulation or 2 layers of transmission.
6. according to claim 3 or 4 described methods, it is characterized in that, the modulation system that described polymerization rank is corresponding and the corresponding relation of the described transmission number of plies are:
Described polymerization rank is that { 2,4,8}, { 2,4}, { 2}, { 4}, { 4,8}, { any one the first Physical Downlink Control Channel of 8} adopts QPSK modulation or 1 layer of transmission.
7. described method according to claim 1 is characterized in that, and is described according to described search volume, determines that the subset in the described search volume is: according to described search volume, determine the subspace in the described search volume; Wherein, described subspace is the first Physical Downlink Control Channel set of the spatial composing of control channel unit corresponding at least one polymerization rank and described polymerization rank in the described search volume;
Described according to the subset in the described search volume, determine that the modulation system of the first Physical Downlink Control Channel or the transmission number of plies are: according to the subspace in the described search volume, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
8. described method according to claim 7 is characterized in that, and is described according to described subspace, determine the modulation system or the transmission number of plies of described the first Physical Downlink Control Channel before, also comprise:
Receive corresponding modulation system or the transmission number of plies in described subspace and described subspace that described base station sends by high-level signaling.
9. described method according to claim 7 is characterized in that, and is described according to described subspace, determine the modulation system or the transmission number of plies of the first Physical Downlink Control Channel before, also comprise:
The corresponding relation of the described subspace of predefine and modulation system; Or
The described subspace of predefine and the corresponding relation that transmits the number of plies.
10. described method according to claim 2 is characterized in that,
The configuration information that described reception base station sends is determined the search volume according to described configuration information, is specially:
Receive the configuration information that described base station sends, determine the configuration of search volume and special subframe according to described configuration information;
According to described polymerization rank, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel, be specially:
The corresponding relation of the corresponding polymerization rank of the configuration of the described special subframe of predefine and modulation system, or the corresponding polymerization rank of the configuration of the described special subframe of predefine and the corresponding relation that transmits the number of plies;
According to the corresponding described polymerization rank of the configuration of described special subframe, determine modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
11. described method is characterized in that according to claim 10, the corresponding relation of described modulation system and the described transmission number of plies be following any one:
When described special subframe be configured in 1,2,6,7 any one time, described polymerization rank is that { 2}, { 4}, { any one the first Physical Downlink Control Channel of 2,4} adopts 16QAM modulation or 2 layers of transmission; Or
When described special subframe be configured in 3,4,8 any one time, described polymerization rank is that { 1}, { 1,2}, { any one the first Physical Downlink Control Channel of 1,2,4} adopts 16QAM modulation or 2 layers of transmission; Or
When described special subframe be configured in 1,2,6,7 any one time, described polymerization rank is that { 4}, { 4,8}, { any one the first Physical Downlink Control Channel of 8} adopts QPSK modulation or 1 layer of transmission; Or
When described special subframe be configured in 3,4,8 any one time, described polymerization rank is that { 2,4,8}, { 2,4}, { 2}, { 4}, { 4,8}, { any one the first Physical Downlink Control Channel of 8} adopts QPSK modulation or 1 layer of transmission.
12. each described method is characterized in that according to claim 1-11, described search volume is the set of the first Physical Downlink Control Channel of one group of candidate.
13. the indicating equipment of the modulation of a Physical Downlink Control Channel or the transmission number of plies is characterized in that, comprising:
Receiver is used for receiving the configuration information that the base station sends, and determines the search volume according to described configuration information;
The first determining unit is used for according to described search volume, determines the subset in the described search volume; Wherein, the subset in the described search volume is the set of the first Physical Downlink Control Channel of at least one candidate in the described search volume;
The second determining unit also is used for the subset according to described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
14. described equipment is characterized in that according to claim 13,
Described the first determining unit also is used for according to described search volume, determines the polymerization rank of the first Physical Downlink Control Channel described in the described search volume;
Described the second determining unit also is used for the polymerization rank according to the first Physical Downlink Control Channel described in the described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
15. described equipment is characterized in that according to claim 13,
Described receiver also is used for receiving described polymerization rank and corresponding modulation system or the transmission number of plies of described polymerization rank that described base station sends by high-level signaling.
16. described equipment is characterized in that according to claim 13, described equipment also comprises:
Definition unit is for the corresponding relation of the described polymerization rank of predefine and described modulation system; Or
The corresponding relation of the described polymerization rank of predefine and the described transmission number of plies.
17. described equipment is characterized in that according to claim 13,
Described the first determining unit also is used for according to described search volume, determines the subspace in the described search volume; Wherein, described subspace is the first Physical Downlink Control Channel set of the spatial composing of control channel unit corresponding at least one polymerization rank and described polymerization rank in the described search volume;
Described the second determining unit also is used for the subspace according to described search volume, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
18. described equipment is characterized in that according to claim 13,
Described receiver also is used for receiving corresponding modulation system or the transmission number of plies in described subspace and described subspace that described base station sends by high-level signaling.
19. described equipment is characterized in that according to claim 13,
Described definition unit also is used for the corresponding relation of the described subspace of predefine and modulation system; Or
The described subspace of predefine and the corresponding relation that transmits the number of plies.
20. described equipment is characterized in that according to claim 13,
Described receiver also is used for receiving the configuration information that described base station sends, and determines the configuration of search volume and special subframe according to described configuration information;
Described definition unit also is used for the corresponding polymerization rank of configuration of the described special subframe of predefine and the corresponding relation of modulation system, or the corresponding polymerization rank of the configuration of the described special subframe of predefine and the corresponding relation that transmits the number of plies;
Described the second determining unit also is used for according to the corresponding described polymerization rank of the configuration of described special subframe, determines modulation system or the transmission number of plies of described the first Physical Downlink Control Channel.
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