CN103327610B - A kind of notice of resource information of control channel, defining method, base station and subscriber equipment - Google Patents
A kind of notice of resource information of control channel, defining method, base station and subscriber equipment Download PDFInfo
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- CN103327610B CN103327610B CN201210072992.XA CN201210072992A CN103327610B CN 103327610 B CN103327610 B CN 103327610B CN 201210072992 A CN201210072992 A CN 201210072992A CN 103327610 B CN103327610 B CN 103327610B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
The invention discloses a kind of notice of resource information of control channel, defining method, base station and subscriber equipment, relate to the communications field, avoid the wasting of resources in the transmission of E-PDCCH.A kind of Notification Method of resource information of control channel, comprise: can the resource information of bearing reinforced Physical Downlink Control Channel E-PDCCH by dynamic signaling notifying user equipment, determine to make subscriber equipment to carry the resource shared by E-PDCCH from described resource information.A defining method for the resource information of control channel, comprising: the resource information being received carried of the E-PDCCH that base station sends by dynamic signaling; The resource carrying E-PDCCH is determined from described resource information.The embodiment of the present invention is mainly used in the communication of base station and subscriber equipment.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of notice of resource information of control channel, defining method, base station and subscriber equipment.
Background technology
At Long Term Evolution (LongTermEvolution, LTE) in system, evolved base station (evolvedNodeB, eNB) for each subscriber equipment be scheduled sends a Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, and corresponding Physical Downlink Control Channel (PhysicalDownlinkControlChannel PDSCH), PDCCH), wherein PDSCH carries the data that eNB sends to subscriber equipment, and PDCCH carries the control information of corresponding PDSCH.Along with the further evolution of LTE, in order to support the coordination between multi-user installation Multiinputoutput and multiple cell, a part of resource has been marked off in original region for sending PDSCH, be used for transmitting the PDCCH (E-PDCCH) strengthened, the capacity of PDCCH can be improved thus, and add the quantity of the subscriber equipment that can simultaneously be scheduled.Subscriber equipment needs to detect E-PDCCH in the region for sending PDSCH, and in order to reduce the blind Detecting scope of subscriber equipment, resource or the scope of resource of carrying E-PDCCH need to inform subscriber equipment.In prior art, the resource of described carrying E-PDCCH or scope of resource inform subscriber equipment by static or semi-static mode.
State in realization in the process of technical scheme, inventor finds prior art, and at least there are the following problems: at present, it is static or semi-static that base station configures to the signaling of the scope of resource of subscriber equipment, the cycle of static or semi-static signaling is long, then notified scope of resource can not reflect the resource requirement of E-PDCCH in real time.Base station needs to ensure to have the ability simultaneously sending E-PDCCH to all subscriber equipmenies or most of subscriber equipment.But in actual applications, base station only sends E-PDCCH control information to a part of subscriber equipment usually, only some is actually used in carrying E-PDCCH to a large amount of resources, namely configure and can not all take to the resource of subscriber equipment, the scope of resource be configured is larger, but instant E-PDCCH information is less, causes the waste of resource.
Summary of the invention
The embodiment provides a kind of notice of resource information of control channel, defining method, base station and subscriber equipment, avoid the wasting of resources in the transmission of E-PDCCH.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A Notification Method for the resource information of control channel, comprising:
Can the resource information of bearing reinforced Physical Downlink Control Channel E-PDCCH by dynamic signaling notifying user equipment, determine from described resource information to make subscriber equipment to carry the resource shared by E-PDCCH.
A defining method for the resource information of control channel, comprising:
The resource information of carried of the E-PDCCH that base station sends is received by dynamic signaling;
The resource carrying E-PDCCH is determined from described resource information.
A kind of base station, comprising:
Resource notification unit, for can be carried the resource information of E-PDCCH by dynamic signaling notifying user equipment, determines from described resource information to make subscriber equipment to carry the resource shared by E-PDCCH.
A kind of subscriber equipment, comprising:
Asset information receipt unit, for receiving the resource information of carried of the E-PDCCH that base station sends by dynamic signaling;
Resource determining unit, for determining the resource carrying E-PDCCH from described resource information.
The notice of the resource information of a kind of control channel that the embodiment of the present invention provides, defining method, base station and subscriber equipment, by base station before E-PDCCH transmits, to the range notification of the resource of E-PDCCH be used for subscriber equipment, from the scope of the resource for E-PDCCH, the resource carrying E-PDCCH is determined to make subscriber equipment, avoid in prior art because only some resource is actually used in carrying E-PDCCH, and cause the idle of the resource being specified for E-PDCCH in a large number, thus reduce the waste of resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram that in prior art, PDCCH region and PDSCH region distribute in subframe;
Fig. 2 is the schematic diagram that PDCCH region in prior art, E-PDCCH region and PDSCH region distribute in subframe;
Fig. 3 is the schematic diagram that in prior art, base station forms the wasting of resources when multiple subscriber equipment sends subframe;
The flow chart of the defining method of the resource information of a kind of control channel that Fig. 4 provides for the embodiment of the present invention one;
The flow chart of the Notification Method of the resource information of a kind of control channel that Fig. 5 provides for the embodiment of the present invention two;
Fig. 6 is to the schematic diagram that E-PDCCH available resource set, resource group are described in the embodiment of the present invention two;
Fig. 7 is the schematic diagram of the building form of resource group in the embodiment of the present invention two;
Fig. 8 is the schematic diagram that in the embodiment of the present invention two, interleaver carries out resource mapping;
The flow chart of the defining method of the resource information of a kind of control channel that Fig. 9 provides for the embodiment of the present invention three;
Figure 10 is that in the embodiment of the present invention three, base station and subscriber equipment carry out the flow chart exchanged;
A kind of block diagram of base station of Figure 11 for providing in the embodiment of the present invention four;
The block diagram of the resource notification unit that Figure 12 provides for the embodiment of the present invention four;
The block diagram of the resource notification unit that Figure 13 provides for the embodiment of the present invention four;
The block diagram of a kind of subscriber equipment that Figure 14 provides for the embodiment of the present invention four;
The block diagram of the asset information receipt unit that Figure 15 provides for the embodiment of the present invention four;
The block diagram of the resource determining unit that Figure 16 provides for the embodiment of the present invention four.
Embodiment
The multiplex mode of PDCCH and PDSCH as shown in Figure 1.Base station sends to the subframe 01 point of subscriber equipment in order to PDCCH region 101 and PDSCH region 102, and wherein PDCCH region 101 includes the PDCCH of all scheduling user's sets.Along with the further evolution of LTE system, in LTERel-10, in order to support the coordination between multi-user installation Multiinputoutput and multiple cell, a part of resource has been marked off in original PDSCH region 102, be used for transmitting E-PDCCH, as shown in Figure 2, in subframe 01 except PDCCH region 101 and PDSCH region 102, a part was originally provided as E-PDCCH region 103 for the resource of PDSCH.
For realizing the transmission to E-PDCCH, in prior art, base station uses static or semi-static signaling to carry out the scope that notifying user equipment can carry the resource of E-PDCCH, is designated as scope A, and base station sends to subscriber equipment by the resource of the E-PDCCH of different user devices in scope A afterwards.Because static/semi-static signaling transmission cycle is relatively long, the scope of resource A indicated by it can not with the resource realtime uniform carrying E-PDCCH, and the scope of resource indicated by it is greater than the resource of carrying E-PDCCH in real time, causes the waste of resource.
For example, first base station sends semi-static instruction to subscriber equipment 1,2 and 3, informs that each subscriber equipment can carry the scope A of the resource of E-PDCCH.In actual transmissions, there is the possibility of the E-PDCCH of the relative user equipment 1,2 and 3 of transmission difference simultaneously, therefore the scale of scope A should be able to be met the requirement simultaneously sending E-PDCCH to equipment 1,2,3.Have the set of 5 groups of Resource Block (ResourceBlock, RB) in scope A, be designated as R1, R2, R3, R4 and R5 respectively.After scope A being notified each subscriber equipment by semi-static instruction, base station sends subframe A successively, subframe B, subframe C and subframe D, as shown in Figure 3.Carry the E-PDCCH of subscriber equipment 1 in R1 and R2 of subframe A, R3 part carries the E-PDCCH of subscriber equipment 2, R4 and R5 part carries the E-PDCCH of subscriber equipment 3.Carry the E-PDCCH of subscriber equipment 1 in R1 and R2 of subframe B, the R3 part of subframe C carries the E-PDCCH of subscriber equipment 2, R4 and the R5 part of subframe D carries the E-PDCCH of subscriber equipment 3.In the case, R3, R4 and R5 part of subframe B, R1, R2, R4 and R5 part of subframe C, and R1, R2 and R3 part of subframe D does not all carry effective E-PDCCH, thus define the waste of resource.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
Embodiments provide a kind of Notification Method of resource information of control channel, relate to side, base station, comprise the following steps:
The resource information of E-PDCCH can be carried by dynamic signaling notifying user equipment, determine to make subscriber equipment to carry the resource shared by E-PDCCH from described resource information.
Wherein, described dynamic signaling can dynamically be followed the tracks of the resource shared by E-PDCCH, namely corresponding dynamic signaling can be had when each E-PDCCH sends to indicate resource information shared by it, also can send the resource information shared by a dynamic signaling instruction E-PDCCH every several E-PDCCH to subscriber equipment.The transmission cycle of static or semi-static signaling is longer than the transmission cycle of dynamic signaling.Dynamic resource indicating method can follow the tracks of the actual resource taken of E-PDCCH better, effectively reduces the idle degree of resource, is conducive to saving resource.
Wherein, described dynamic signaling can in physical layer transmission.
The embodiment of the present invention additionally provides a kind of defining method of resource information of control channel, relates to subscriber equipment side, as shown in Figure 4, comprises the following steps:
201, the resource information of carried of the E-PDCCH that base station sends is received by dynamic signaling.
202, from described resource information, the resource carrying E-PDCCH is determined.
Subscriber equipment, when receiving the subframe that base station sends, will receive described resource information, and therefrom determine the shared resource carrying E-PDCCH.
Notice, the defining method of the resource information of a kind of control channel that the embodiment of the present invention provides, by base station, the scope of resource being used for E-PDCCH transmission is informed to subscriber equipment, the resource shared by E-PDCCH is carried from for determining the scope of resource of E-PDCCH to make subscriber equipment, avoid the resource for E-PDCCH transmission caused idle not in time due to resource indication information in prior art, thus reduce the waste of resource.
Embodiment two:
Embodiments provide a kind of Notification Method of resource information of control channel, relate to side, base station, as shown in Figure 5, comprise the following steps:
301, send the first notice signaling to subscriber equipment, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH.
302, the information of second available resource set of E-PDCCH can be carried by described dynamic signaling notifying user equipment.
Wherein, the transmission cycle of described dynamic signaling is relatively short, can dynamically immediately follow the tracks of the resource shared by E-PDCCH, namely corresponding dynamic signaling can be had when each E-PDCCH sends to indicate resource information shared by it, also can send the resource information shared by a dynamic signaling instruction E-PDCCH every several E-PDCCH to subscriber equipment.Dynamic resource indicating method can follow the tracks of the actual resource taken of E-PDCCH better, effectively reduces the idle degree of resource, is conducive to saving resource.Described dynamic signaling can in physical layer transmission.
Subscriber equipment, when receiving the subframe that base station sends, will find described resource information from subframe, and therefrom determine the shared resource carrying E-PDCCH.
By sending the first notice signaling, subscriber equipment can be made in total downlink resource, to obtain the large scope of an E-PDCCH transmission, i.e. the first available resource set.Dynamic signaling can make subscriber equipment learn in concrete E-PDCCH transmission, the less resource collection selected in the first available resource set, i.e. the second available resource set.Wherein, the second available resource set is the subset of the first available resource set.
Can be illustrated by the first available resource set and the second available resource set above-mentioned E-PDCCH below, the resource collection that the basis of Fig. 2 is carried out respective change increase E-PDCCH obtains as shown in Figure 6.The information of the first available resource set 104 is carried by the first notice signaling and sends to subscriber equipment, and subscriber equipment can be determined to go to search E-PDCCH in the scope of resource of 104 thus, and can not search outside the scope of 104.And in 104 scopes, divide and have some resource groups, as resource group 1041,1042.Base station is after determining which resource group to carry E-PDCCH by, the resource group i.e. information of the second available resource set of carrying E-PDCCH is notified subscriber equipment through dynamic signaling, so that subscriber equipment is in the subframe received afterwards, in corresponding second available resource set, determine the resource carrying E-PDCCH, thus obtain the control information in E-PDCCH.
Further, can carry the resource of E-PDCCH above by dynamic signaling notifying user equipment, the indicating mode of concrete signaling can comprise following several mode.
A kind of mode is that notifying user equipment is for carrying the resource location information of E-PDCCH.The resource position of carrying E-PDCCH is directly advertised to subscriber equipment by base station by this mode, thus eliminates the blind Detecting of subscriber equipment.
Another kind is, notifying user equipment carries out the scope of resource of E-PDCCH blind Detecting.Such as, with reference to figure 6, base station using resource group 1041 as the range notification of blind Detecting to subscriber equipment, then subscriber equipment can search the resource that can carry E-PDCCH in resource group 1041 scope of subframe.The expense that this kind of method is used to indicate the dynamic signaling of scope of resource is less than a kind of method, can save the expense of dynamic signaling.
The unit of the resource of the described E-PDCCH of carrying is resource group, realize the This move of the resource information that can carry E-PDCCH above by dynamic signaling notifying user equipment, can be specifically: by physical layer dynamic signaling, sending the data bit signaling for identifying the resource group that can carry E-PDCCH to subscriber equipment, determining the described resource group that can carry E-PDCCH to make subscriber equipment according to described data bit.The resource that can carry E-PDCCH described in dynamic signaling instruction carrys out identifying resource group by sending data bit, and have the mode of plurality of optional, citing is described respectively below.
Example 1:
Between the base station and the user equipment, in advance the method for salary distribution of resource group is defined, suppose in available Resource Block, mark off L resource group, be designated as resource group 1, resource group 2 ..., resource group L.The Resource Block that different resource groups comprises can have lap, and whether the resource units in each resource group does not limit continuously in time domain.Suppose L=3, namely divide 3 resource groups.When carrying out described dynamic signaling and sending, can send to subscriber equipment
individual bit, i.e. 2 bits, these two bits have the 2 power kind combined situation of 2, are respectively: 00,01,10 and 11.Might as well by the corresponding resource group 3 of 00 corresponding resource group 1,01 corresponding resource group 2,10.Then when to send for the value of the data bits identifying the resource group that can carry E-PDCCH to subscriber equipment be 00, the resource that expression can carry E-PDCCH is resource group 1, when to send for the value of the signaling bit position identifying the resource group that can carry E-PDCCH to subscriber equipment be 01, the resource that expression can carry E-PDCCH is resource group 2, when to send for the value of the data bits identifying the resource group that can carry E-PDCCH to subscriber equipment be 10, represent that the resource that can carry E-PDCCH is resource group 3.Which resource group subscriber equipment, according to the value of the data bits received, is determined in and is carried E-PDCCH.When L get other be greater than the integer of 1 time, the compound mode of data bit with reference to foregoing description, can repeat no more here.
Example 2:
The division of resource group, with reference to above-mentioned example 1, repeats no more here.N number of bit is sent to subscriber equipment, the wherein corresponding resource group of each bit, and the value of bit is the resource group that this bit of 1 expression is corresponding can carry E-PDCCH, the value of bit is that the resource group that this bit of 0 expression is corresponding does not carry E-PDCCH; Also can the value of bit be that the resource group that this bit of 0 expression is corresponding can carry E-PDCCH in certain practical application, not limit herein.
The data bit identification means of above-mentioned example 1, a kind of
a resource group that the arrangement mode of individual bit is corresponding, the data bit identification means of example 2, N number of bit can identify at most N number of resource group.
The embodiment of the present invention refer to two kinds can carry the mode of the resource of E-PDCCH by data bit mark, and the usage data bit that those skilled in the art can associate other thus carries out the mode of resource identification, all within protection scope of the present invention.
In practical application, the division of resource group can be divided by principle presetting between subscriber equipment and base station.Each resource group comprises several resource units, and several resource units described can be continuous print on frequency domain, also can be discrete.In LTE system, the described resource units informed in the resource group of each user can be Resource Block.Such as, namely each resource group is a Resource Block group (resourceblockgroup, RBG), and a Resource Block group comprises M Resource Block, and the value of M is different according to system bandwidth difference.Again such as, each resource group can be the set of the Resource Block getting several Resource Block composition from each Resource Block group.As shown in Figure 7, resource group 1 comprises first Resource Block from extracting from RBG1 ~ RBGN respectively, altogether N number of Resource Block composition.
In addition, the unit of the resource of the described E-PDCCH of carrying also can be Resource Block, also can be Resource Block group.Can be specifically: by physical layer dynamic signaling, sending the data bit signaling for identifying Resource Block or the Resource Block group that can carry E-PDCCH to subscriber equipment, determining described Resource Block or the Resource Block group that can carry E-PDCCH to make subscriber equipment according to described data bit.The resource that can carry E-PDCCH described in dynamic signaling instruction comes identifying resource block or Resource Block group by sending data bit.
Be understandable that, the above dynamic signaling can send in physical layer.
In LTE system, the search volume of control channel comprises public search space (commonsearchspace) and user's dedicated search space (UE-specificsearchspace).Further, the dynamic signaling described in the embodiment of the present invention can transmit in public search space, is used to indicate the resource information of user's dedicated search space hold.Also can transmit in PDCCH territory, be used to indicate the resource information shared by E-PDCCH.
In LTE system, the transmission means of E-PDCCH comprises distributed transmission (distributedtransmission) and localized transmission (localizedtransmission).Further, the dynamic signaling described in the embodiment of the present invention may be used for instruction E-PDCCH distributed transmission or the resource information shared by localized transmission.
Be understandable that, in the E-PDCCH transmission of LTE system, interleaver is there is in mapping from logical resource to physical resource or the mapping from search volume to physical resource, the effect of described interleaver is that logical resource is not sequentially carried out to the mapping of physical resource, as shown in Figure 8, the E-PDCCH1 of logic E-PDCCH, E-PDCCH2, E-PDCCH3, E-PDCCH4, E-PDCCHN are mapped to the E-PDCCH2 of physics E-PDCCH respectively, E-PDCCHN, E-PDCCH1, E-PDCCH3, E-PDCCH4.The length of interleaver is relevant with the resource size shared by E-PDCCH, resource shared by E-PDCCH has how many, how long the length of interleaver is corresponding just has, and the dynamic signaling being used to indicate resource information so of the present invention also just indicates corresponding interleaver sizes.
The Notification Method of the resource information of a kind of control channel that the embodiment of the present invention provides, two stages are divided to inform to subscriber equipment the scope of resource being used for E-PDCCH by base station, can determine to make subscriber equipment to carry the resource shared by E-PDCCH, avoid owing to dynamically indicating the large physical layer signaling expense caused simultaneously.
Embodiment three:
Embodiments provide a kind of defining method of resource information of control channel, relate to subscriber equipment side, as shown in Figure 9, the method comprises the following steps:
401, the first notice signaling that base station sends is received.
Described first notice signaling comprises the information of first available resource set that can carry E-PDCCH.
402, the information of second available resource set of carried of the E-PDCCH that base station sends is received by dynamic signaling.
Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set.
403, from described second available resource set, the resource carrying E-PDCCH is determined.
Wherein, from described second available resource set, determine the resource carrying E-PDCCH, specifically can comprise following several situation:
When the information of the second available resource set of subscriber equipment reception is: when subscriber equipment carries out the information of the scope of resource of E-PDCCH blind Detecting, subscriber equipment, through carrying out blind Detecting to the scope of resource of described E-PDCCH blind Detecting, determines the resource of described carrying E-PDCCH;
In another kind of situation, when the information of the second available resource set that subscriber equipment receives is: during for carrying the resource location information of E-PDCCH, subscriber equipment is using the resource of the resource indicated by described resource location information as described carrying E-PDCCH.
In addition, when the unit of the resource of the described E-PDCCH of carrying is resource group, realize the This move of the information receiving the second available resource set that base station sends above by dynamic signaling, can be specifically: pass through dynamic signaling, receiving the data bits for identifying the second available resource set that base station sends, determining the described resource that can carry E-PDCCH to make subscriber equipment according to described data bits.Identifying the resource group that can carry E-PDCCH by sending data bits, having the mode of plurality of optional, can refer to the description in the embodiment of the present invention two, repeat no more herein.
Below for Figure 10, the confirmation method of the resource information of the Notification Method of the resource information of the control channel of side, base station and subscriber equipment side is combined and is described.
501, the scope of base station to the resource that can carry E-PDCCH confirms.
Before the transmission carrying out subframe to subscriber equipment, first base station will determine which resource in subframe can carry E-PDCCH.
502, base station is by static state/semi-static signaling, sends the first notice signaling to each subscriber equipment.
Described first notice signaling comprises the information of first available resource set that can carry E-PDCCH.
Certainly, in practical application, step 502 is not necessary, and base station also directly can perform step 503 after step 501.
503, the information of second available resource set of E-PDCCH can be carried by dynamic signaling notifying user equipment.
Described second available resource set is the subset of described first available resource set.By step 502, can make subscriber equipment in the scope of the first available resource set, search the resource that can carry E-PDCCH, be conducive to reducing seek scope.
504, each subscriber equipment receives the information of second available resource set of carried of the E-PDCCH that base station sends respectively.
505, Base Transmitter subframe.
506, subscriber equipment receives subframe.
Each subscriber equipment receives subframe, and the information of the second available resource set according to carried of the E-PDCCH received before, from subframe, find the resource that can carry E-PDCCH.
507, the control information in E-PDCCH is got.
The defining method of the resource information of a kind of control channel that the embodiment of the present invention provides, by base station, the scope of resource being used for E-PDCCH is informed to subscriber equipment, the resource shared by E-PDCCH is carried from for determining the scope of resource of E-PDCCH to make subscriber equipment, avoid in prior art due to only some due to resource indication information not in time and being instructed in a large number of causing for resource idle of E-PDCCH transmission, thus reduce the waste of resource.
Embodiment four:
Embodiments provide a kind of base station, as shown in figure 11, shown base station comprises resource notification unit 61, for can be carried the resource information of E-PDCCH by dynamic signaling notifying user equipment, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described resource information.
Further, as shown in figure 12, described resource notification unit 61 specifically comprises: the first notice subelement 611, for sending the first notice signaling to subscriber equipment, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH.Second notice subelement 612 is for carrying the information of second available resource set of E-PDCCH by described dynamic signaling notifying user equipment.
Wherein, described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set that described first available resource set comprises.Here sending the first notice signaling to subscriber equipment, can be undertaken by static or semi-static signaling.
Further, as shown in figure 13, described resource notification unit 61 specifically comprises resource notification subelement 613, carries out the information of the scope of resource of E-PDCCH blind Detecting for notifying user equipment, or notifying user equipment is for carrying the resource location information of E-PDCCH.
In addition, when described resource notification unit 61 is resource group specifically for the unit of the resource as the described E-PDCCH of carrying, described resource notification unit, specifically for sending the data bit for identifying the resource group that can carry E-PDCCH to subscriber equipment, determines the described resource group that can carry E-PDCCH to make subscriber equipment according to described data bit.Wherein, carry out by sending data bit the mode that identifying resource group can have plurality of optional, concrete with reference to the description in the embodiment of the present invention two, repeat no more herein.
Wherein, described dynamic signaling can dynamically be followed the tracks of the resource shared by E-PDCCH, namely corresponding dynamic signaling can be had when each E-PDCCH sends to indicate resource information shared by it, also can send the resource information shared by a dynamic signaling instruction E-PDCCH every several E-PDCCH to subscriber equipment.The transmission cycle of static or semi-static signaling is longer than the transmission cycle of dynamic signaling.Dynamic resource indicating method can follow the tracks of the actual resource taken of E-PDCCH better, effectively reduces the idle degree of resource, is conducive to saving resource.Described dynamic signaling can send in physical layer.
In LTE system, the search volume of control channel comprises public search space and user's dedicated search space.Further, the dynamic signaling described in the embodiment of the present invention can transmit in public search space, is used to indicate the resource information of user's dedicated search space hold.Also can transmit in PDCCH territory, be used to indicate the resource information shared by E-PDCCH.
In LTE system, the transmission means of E-PDCCH comprises distributed transmission and localized transmission.Further, the dynamic signaling described in the embodiment of the present invention may be used for instruction E-PDCCH distributed transmission or the resource information shared by localized transmission.
Be understandable that, in the E-PDCCH transmission of LTE system, interleaver is there is in mapping from logical resource to physical resource or the mapping from search volume to physical resource, the effect of described interleaver is that logical resource is not sequentially carried out to the mapping of physical resource, as shown in Figure 8, the E-PDCCH1 of logic E-PDCCH, E-PDCCH2, E-PDCCH3, E-PDCCH4, E-PDCCHN are mapped to the E-PDCCH2 of physics E-PDCCH respectively, E-PDCCHN, E-PDCCH1, E-PDCCH3, E-PDCCH4.The length of interleaver is relevant with the resource size shared by E-PDCCH, resource shared by E-PDCCH has how many, how long the length of interleaver is corresponding just has, and the dynamic signaling being used to indicate resource information so of the present invention also just indicates corresponding interleaver sizes.
The embodiment of the present invention additionally provides a kind of subscriber equipment, as shown in figure 14, comprises asset information receipt unit 71, resource determining unit 72.
Asset information receipt unit 71 is for receiving the resource information of carried of the E-PDCCH that base station sends by dynamic signaling.Resource determining unit 72 for determining the resource carrying E-PDCCH from described resource information.
Further, as shown in figure 15, described asset information receipt unit 71 specifically comprises the first reception subelement 711, second reception subelement 712.
First receives subelement 711 for receiving the first notice signaling of base station transmission, and described first notice signaling comprises the information of first available resource set that can carry E-PDCCH.
Second receives subelement 712 for by described dynamic signaling, receives the information of second available resource set of carried of the E-PDCCH that base station sends.Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set.
Further, as shown in figure 16, described resource determining unit 72 also comprises: first resource determination subelement 721, for when the resource information of carried of E-PDCCH received be subscriber equipment carry out the information of the scope of resource of E-PDCCH blind Detecting time, through carrying out blind Detecting to the scope of resource of described E-PDCCH blind Detecting, determine the resource of described carrying E-PDCCH.
Secondary resource determination subelement 722, for when the resource information of carried of the E-PDCCH received is the resource location information for carrying E-PDCCH, using the resource of the resource indicated by described resource location information as described carrying E-PDCCH.
In addition, when the unit of the resource of the described E-PDCCH of carrying is resource group, the data bit for identifying the resource group that can carry E-PDCCH that described asset information receipt unit 71 sends specifically for receiving base station, so that the resource group that can carry E-PDCCH described in obtaining according to described data bit.Wherein, carry out by sending data bit the mode that identifying resource group can have plurality of optional, concrete with reference to the description in the embodiment of the present invention two, repeat no more herein.
A kind of base station that the embodiment of the present invention provides and subscriber equipment, the defining method of the resource information of a kind of control channel that the embodiment of the present invention provides, by base station, the scope of resource being used for E-PDCCH is informed to subscriber equipment, the resource shared by E-PDCCH is carried from for determining the scope of resource of E-PDCCH to make subscriber equipment, avoid in prior art due to only some due to resource indication information not in time and being instructed in a large number of causing for resource idle of E-PDCCH transmission, thus reduce the waste of resource.
Exercising ordinary skill is understood that all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, 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 (15)
1. a Notification Method for the resource information of control channel, is characterized in that, comprising:
Can the resource information of bearing reinforced Physical Downlink Control Channel E-PDCCH by dynamic signaling notifying user equipment, determine from described resource information to make subscriber equipment to carry the resource shared by E-PDCCH;
The described resource information that can be carried E-PDCCH by dynamic signaling notifying user equipment, is specifically comprised:
Send the first notice signaling to subscriber equipment, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH;
The information of second available resource set of E-PDCCH can be carried by described dynamic signaling notifying user equipment;
Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set that described first available resource set comprises.
2. method according to claim 1, is characterized in that, the described resource information that can be carried E-PDCCH by dynamic signaling notifying user equipment, is specifically comprised:
Notifying user equipment carries out the information of the scope of resource of E-PDCCH blind Detecting, or
Notifying user equipment is for carrying the resource location information of E-PDCCH.
3. method according to claim 2, is characterized in that, when the unit of the resource of the described E-PDCCH of carrying is resource group, the described resource information that can be carried E-PDCCH by dynamic signaling notifying user equipment, is specifically comprised:
Sending the data bit for identifying the resource group that can carry E-PDCCH to subscriber equipment, determining the described resource group that can carry E-PDCCH to make subscriber equipment according to described data bit.
4. method according to claim 3, is characterized in that, described to the data bit of subscriber equipment transmission for identifying the resource group that can carry E-PDCCH, specifically comprises:
Send to subscriber equipment
individual bit, wherein L is the sum of the resource group according to the resource group dividing mode division preset, and
individual bit has
plant bit compound mode, each the maximum corresponding a kind of resource group in described bit compound mode; Or
N number of bit is sent to subscriber equipment, the wherein corresponding resource group of each bit, and the value of bit is the resource group that this bit of 1 expression is corresponding can carry E-PDCCH, the value of bit is that the resource group that this bit of 0 expression is corresponding does not carry E-PDCCH.
5. method according to claim 4, is characterized in that, described resource group dividing mode comprises: a resource group combines RBG by a Resource Block and forms; And/or
A resource group is made up of the set of getting the RB that M Resource Block RB forms from each RBG, wherein M be greater than zero integer.
6. method according to claim 1, is characterized in that, described dynamic signaling, in public search space transmission, is used to indicate the resource information of dedicated search space hold; Or
Described dynamic signaling, in the transmission of physical downlink control channel PDCCH territory, is used to indicate the resource information shared by E-PDCCH; Or
Described dynamic signaling is used to indicate the resource information shared by E-PDCCH distributed transmission or localized transmission.
7. a defining method for the resource information of control channel, is characterized in that, comprising:
The resource information of carried of the E-PDCCH that base station sends is received by dynamic signaling;
The resource carrying E-PDCCH is determined from described resource information;
The described resource information being received carried of the E-PDCCH that base station sends by dynamic signaling, is specifically comprised:
Receive the first notice signaling that base station sends, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH;
By described dynamic signaling, receive the information of second available resource set of carried of the E-PDCCH that base station sends;
Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set.
8. method according to claim 7, is characterized in that, the described resource determining carrying E-PDCCH from described resource information, specifically comprises:
When the resource information of carried of E-PDCCH received be subscriber equipment carry out the information of the scope of resource of E-PDCCH blind Detecting time, through carrying out blind Detecting to the scope of resource of described E-PDCCH blind Detecting, determine the resource of described carrying E-PDCCH; Or
When the resource information of carried of the E-PDCCH received is the resource location information for carrying E-PDCCH, using the resource of the resource indicated by described resource location information as described carrying E-PDCCH.
9. method according to claim 8, is characterized in that, when the unit of the resource of the described E-PDCCH of carrying is resource group, the described resource information being received carried of the E-PDCCH that base station sends by dynamic signaling, is specifically comprised:
Receive the data bit for identifying the resource group that can carry E-PDCCH that base station sends, the resource group of E-PDCCH can be carried described in obtaining according to described data bit.
10. a base station, is characterized in that, comprising:
Resource notification unit, for can be carried the resource information of E-PDCCH by dynamic signaling notifying user equipment, determines from described resource information to make subscriber equipment to carry the resource shared by E-PDCCH;
Described resource notification unit specifically comprises:
First notice subelement, for sending the first notice signaling to subscriber equipment, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH;
Second notice subelement, for carrying the information of second available resource set of E-PDCCH by described dynamic signaling notifying user equipment;
Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set that described first available resource set comprises.
11. base stations according to claim 10, is characterized in that, described resource notification unit specifically comprises:
Resource notification subelement, carries out the information of the scope of resource of E-PDCCH blind Detecting for notifying user equipment, or notifying user equipment is for carrying the resource location information of E-PDCCH.
12. base stations according to claim 11, it is characterized in that, when the unit of the resource of the described E-PDCCH of carrying is resource group, described resource notification unit, specifically for sending the data bit for identifying the resource group that can carry E-PDCCH to subscriber equipment, determines the described resource group that can carry E-PDCCH to make subscriber equipment according to described data bit.
13. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Asset information receipt unit, for receiving the resource information of carried of the E-PDCCH that base station sends by dynamic signaling;
Resource determining unit, for determining the resource carrying E-PDCCH from described resource information;
Described asset information receipt unit specifically comprises:
First receives subelement, and for receiving the first notice signaling that base station sends, described first notice signaling comprises the information of first available resource set that can carry E-PDCCH;
Second receives subelement, for by described dynamic signaling, receives the information of second available resource set of carried of the E-PDCCH that base station sends;
Described second available resource set is the subset of described first available resource set, determines to carry the resource shared by E-PDCCH to make subscriber equipment from described second available resource set.
14. subscriber equipmenies according to claim 13, is characterized in that, described resource determining unit also comprises:
First resource determination subelement, for when the resource information of carried of E-PDCCH received be subscriber equipment carry out the information of the scope of resource of E-PDCCH blind Detecting time, through carrying out blind Detecting to the scope of resource of described E-PDCCH blind Detecting, determine the resource of described carrying E-PDCCH;
Secondary resource determination subelement, for when the resource information of carried of the E-PDCCH received is the resource location information for carrying E-PDCCH, using the resource of the resource indicated by described resource location information as described carrying E-PDCCH.
15. subscriber equipmenies according to claim 14, it is characterized in that, when the unit of the resource of the described E-PDCCH of carrying is resource group, the data bit for identifying the resource group that can carry E-PDCCH that described asset information receipt unit sends specifically for receiving base station, so that the resource group that can carry E-PDCCH described in obtaining according to described data bit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072992.XA CN103327610B (en) | 2012-03-19 | 2012-03-19 | A kind of notice of resource information of control channel, defining method, base station and subscriber equipment |
| PCT/CN2013/072872 WO2013139255A1 (en) | 2012-03-19 | 2013-03-19 | Method, base station and user equipment for notification and determination of control channel resource information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210072992.XA CN103327610B (en) | 2012-03-19 | 2012-03-19 | A kind of notice of resource information of control channel, defining method, base station and subscriber equipment |
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| CN103327610A CN103327610A (en) | 2013-09-25 |
| CN103327610B true CN103327610B (en) | 2016-03-30 |
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| WO2015061947A1 (en) * | 2013-10-28 | 2015-05-07 | Alcatel Lucent | Method and apparatus for obtaining dci of the interfering cell based on common pdcch/epdcch sets |
| CN109511167B (en) * | 2014-05-15 | 2020-07-14 | 华为技术有限公司 | Base station, user equipment and communication signal sending and receiving method |
| CN113839764A (en) * | 2017-03-06 | 2021-12-24 | 上海朗桦通信技术有限公司 | Method and device used in user equipment and base station for dynamic scheduling |
| CN108633002A (en) * | 2017-03-15 | 2018-10-09 | 深圳市金立通信设备有限公司 | A kind of resource indicating method, relevant device and system |
| CN112771959B (en) * | 2019-06-27 | 2023-06-06 | Oppo广东移动通信有限公司 | Resource set monitoring method, equipment and storage medium |
| EP3994925A4 (en) | 2019-07-04 | 2023-03-29 | ZTE Corporation | Uplink transmissions in wireless communications |
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| CN102088791A (en) * | 2009-12-03 | 2011-06-08 | 普天信息技术研究院有限公司 | Dynamic configuration method for E-PUCH (Enhance-Physical Uplink Channel) resources |
| CA2786804C (en) * | 2010-01-11 | 2016-09-06 | Research In Motion Limited | System and method for control channel interference management and extended pdcch |
| CN102355732A (en) * | 2011-08-12 | 2012-02-15 | 电信科学技术研究院 | Downlink control information transmission method and device |
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