CN102791036B - Transmit the method for Downlink Control Information, access device, subscriber equipment and system - Google Patents
Transmit the method for Downlink Control Information, access device, subscriber equipment and system Download PDFInfo
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Abstract
Embodiments provide the method for transmitting Downlink Control Information, access device, subscriber equipment and system.The method comprises: when the user equipment (UE) of same community being divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; Send UE group special multicast Downlink Control Information UM-DCI by control channel region to this UE group, determine resource area to make this UE group based on UM-DCI; Downlink Control Information DCI is sent to this UE group by resource area.Based on technique scheme, transmit by DCI is carried in resource area, the expense of UE control signal can be reduced on control channel region, and then increase the capacity of control channel.By the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Description
Technical field
The present invention relates to moving communicating field, and more specifically, relate in moving communicating field method, access device, subscriber equipment and the system of transmitting Downlink Control Information.
Background technology
At 3GPP (3
rdgenerationPartnershipProject, third generation partner program) in network, transmitting downlink control signal can be carried out by control channel region in base station.Descending control signaling can be divided into cell-specific (Cell-Specific) part and user equipment specific (UE-Specific) part, comprise in user equipment specific part and send to subscriber equipment (UserEquipment, UE) Downlink Control Information (DownlinkControlInformation, DCI).PDSCH (PhysicalDownlinkSharedChannel, the Physical Downlink Shared Channel) channel of UE by sending to the DCI of oneself can determine to distribute to oneself, thus business datum is received on PDSCH channel.
Along with the increase of UE quantity in community, the DCI that control channel region carries increases gradually, and this constitutes great challenge for control channel capacity.Limited control channel capacity makes can not effectively carry too much DCI, thus affects the acquisition of UE to DCI.
Summary of the invention
Embodiments provide the method for transmitting Downlink Control Information, access device, subscriber equipment and system, can solve and control the limited problem of channel capacity when transmitting DCI, the transmission of DCI can not be restricted because of the restriction of control channel capacity, thus the expense of UE control signal can be reduced on control channel region.
On the one hand, embodiments provide a kind of method for transmitting Downlink Control Information, comprise: when the user equipment (UE) of same community being divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; Send UE group special multicast Downlink Control Information UM-DCI by control channel region to this UE group, determine resource area to make this UE group based on UM-DCI; Downlink Control Information DCI is sent to this UE group by resource area.
On the other hand, embodiments providing a kind of method for transmitting Downlink Control Information, comprising: when the user equipment (UE) of same community being divided at least one UE group, determining affiliated UE group; Control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that base station sends; Based on UM-DCI, determine the resource area that base station is joined for this UE component outside control channel region; Resource area receives the Downlink Control Information DCI that base station sends.
Again on the one hand, embodiments provide a kind of access device, comprise: distribution module, for when the user equipment (UE) of same community being divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; First sending module, for sending UE group special multicast Downlink Control Information UM-DCI by control channel region to this UE group, determines resource area to make this UE group based on UM-DCI; Second sending module, for sending Downlink Control Information DCI by resource area to this UE group.
Another aspect, embodiments provides a kind of subscriber equipment, comprising: the first determination module, for when the user equipment (UE) of same community being divided at least one UE group, determines affiliated UE group; First receiver module, for receiving the UE group special multicast Downlink Control Information UM-DCI of this UE group that base station sends on control channel region; Second determination module, for based on UM-DCI, determines the resource area that base station is joined for this UE component outside control channel region; Second receiver module, for receiving the Downlink Control Information DCI that base station sends in resource area.
Another aspect, embodiments provide a kind of system for transmitting Downlink Control Information, this system comprises access device and subscriber equipment.Access device is used for when the user equipment (UE) of same community being divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; UE group special multicast Downlink Control Information UM-DCI is sent to this UE group by control channel region; Downlink Control Information DCI is sent to this UE group by resource area.Subscriber equipment is used for when the UE of same community being divided at least one UE group, determines affiliated UE group; Control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that access device sends; Based on this UM-DCI, determine the resource area that access device is joined for this UE component outside control channel region; This resource area receives the Downlink Control Information DCI that access device sends.
Based on technique scheme, by the UE in same community is divided into different UE groups, can transmit in the resource area sending to the DCI of same UE group to be carried on outside control channel region, make DCI without the need to as correlation technique, be limited in limited capacity control channel region on transmit.Thus DCI can take more channel resource, the transmission of DCI can not be restricted because of the restriction of control channel capacity, therefore can reduce the expense of UE control signal on control channel region, and then increases the capacity of control channel.In addition, by the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled 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 flow chart of the method for transmitting DCI according to the embodiment of the present invention.
Fig. 2 is the flow chart being sent the method for UM-DCI (UEgroupspecificMulticast-DCI, UE group dedicated multicast DCI) by control channel region to UE group according to the embodiment of the present invention.
Fig. 3 is the flow chart being sent the method for DCI by resource area to UE group according to the embodiment of the present invention.
Fig. 4 is the flow chart being sent the other method of DCI by resource area to UE group according to the embodiment of the present invention.
Fig. 5 is the schematic diagram of the distribution example of the resource area of the carrying DCI joined for different UEs component according to the embodiment of the present invention.
Fig. 6 is the schematic diagram of the scrambling process according to the embodiment of the present invention.
Fig. 7 is the flow chart of the method again for transmitting DCI according to the embodiment of the present invention.
Fig. 8 is the structured flowchart of the access device according to the embodiment of the present invention.
Fig. 9 is the structured flowchart of another access device according to the embodiment of the present invention.
Figure 10 is the structured flowchart of the subscriber equipment according to the embodiment of the present invention.
Figure 11 is the structured flowchart of the system for transmitting DCI according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme of the embodiment of the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment.Based on the described embodiment in the present invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all should belong to the scope of protection of the invention.
First, composition graphs 1 describes the method 100 for transmitting DCI according to the embodiment of the present invention.
As shown in Figure 1, method 100 comprises: in S110, when the UE of same community being divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; In S120, send UE group special multicast Downlink Control Information UM-DCI by control channel region to this UE group, determine resource area to make this UE group based on UM-DCI; In S130, send Downlink Control Information DCI by resource area to this UE group.
By the UE in same community is divided into different UE groups, in units of UE group, the resource area being carried on outside control channel region by sending to the DCI of same UE group is transmitted, and utilizes the UM-DCI transmitted on control channel region to indicate this resource area so that UE group correctly receives DCI.
Like this, DCI without the need to as correlation technique, be limited in limited capacity control channel region on transmit, thus make DCI can take more channel resource, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, therefore can reduce the expense of UE control signal on control channel region, and then increase the capacity of control channel.In addition, by the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Such as, method 100 can be performed by base station.Base station can be traditional base station, also can be LTE (LongTermEvolution, Long Term Evolution) eNB (EvolvedNodeB in system, evolved base station) etc., the control UE wireless access that can also occur in future also carries out other access devices etc. of radio communication with UE.
In S110, in several ways the UE in same community can be divided at least one UE group.The higher layer message that UE can send based on base station knows UE group belonging to oneself, also can know UE group belonging to oneself according to predetermined configurations.Packet-based thought, can so that the DCI of the UE sent in same group condenses together by base station transmits.
According to one embodiment of present invention, a UE group can be divided into by selecting the UE of same transmit point.Launch point can be base station, also can be the RRH (RemoteRadioHead, remote radio head) of base station.The UE of same UE group can accept service from identical one or more base stations, also can accept service from identical one or more RRH, can also accept service from identical one or more base station from identical one or more RRH.
Such as, at LTER11CoMPScenario4 (LongTermEvolutionRelease11CoordinatedMulti-PointScenario 4, Long Term Evolution version 11 cooperative multipoint transmission scheme 4) under scene, the transfer point of all RRH of comprising in a macro base station region all shares same community ID.Suppose total n launch point (launch point can be macro base station, also can be RRH) in a community, if represent launch point with TX, n launch point in Ze Yige community can be designated as TX respectively
0, TX
1..., TX
(n-1).If to select the UE of same transmit point to be one group, 2 can be had at the most altogether so in the cell
n-1 UE group.Namely, suppose with precoding vector (1,0,1 ..., 1) represent select TX
0, TX
2..., TX
(n-1)uE, then the UE group likely existed can be constructed as follows set:
Wherein, in set, each vector represents a UE group, and whether the element in each vector represents respectively selects corresponding launch point.Such as, get 1 interval scale when first element in vector and select TX
0, first element is got 0 interval scale and is not selected TX
0.
According to one embodiment of present invention, the UE of the identical PMI of feedback (PrecodingMatrixIndicator, pre-coding matrix indicates) can be divided into a group.Because UE can report the PMI of oneself to base station, so base station can be divided into a group by using the UE of identical PMI.
According to one embodiment of present invention, can using each UE separately as a UE group.Now, the quantity of the UE group in community is identical with UE number.Certainly, those skilled in the art it will also be appreciated that other divide the mode of UE group.
For certain UE group, base station can be the resource area that this UE component joins outside control channel region, and this resource area carries DCI.Thus, the resource area of the DCI originally transmitted on control channel region outside control channel region is transmitted, makes it possible to the expense reducing control channel in control channel region, improve the capacity of control channel.
Control channel region can be the undefined control channel region of traditional LTER8, is limited in control channel region transmits from correlation technique DCI.Those skilled in the art also can expect, on the route of non-LTE system evolution, control channel region also can be the region that other standards specifies control information transmission.
Such as, the resource area in data channel region can be joined for UE component.When by spendable for base station resource division be control channel region and data channel region two parts time, data channel region can be the region that base station makes for service data transmission, generally includes PDSCH channel with service data transmission in this region.Because Resourse Distribute can be carried out neatly in base station in data channel region, the resource area of carrying DCI therefore easily can be distributed in data channel region.
Certainly, owing to may there are other regions except control channel region and data channel region in future, the region that such as control channel and data channel can share, be exclusively used in the reserved area etc. of certain Information Delivery, also in these regions, DCI can be transmitted in Resources allocation region.Transmitting by DCI being carried in the resource area outside control channel region, the reduction of control channel expense can be realized, thus the capacity of control channel is increased.
According to one embodiment of present invention, base station is that the resource area that different UEs component is joined can exist in the mode of frequency division multiplexing.Like this, each UE group can have oneself independently resource area.
In addition, identical resource area also can be joined at least two UE components in base station.Like this, owing to there is multiplexing resource area, so need by certain mode, multiplexing resource area together to be distinguished, extract from resource area the DCI sending to oneself smoothly to make UE group, such as utilize UM-RNTI (UEgroupspecificMulticast-RadioNetworkTemporaryIdentifier, UE group dedicated multicast wireless network is identified temporarily) resource area of the corresponding UE group of scrambling, this will be described by composition graphs 4 below.
The resource area of distributed carrying DCI can be called UM-PDCCH (UEgroupspecificMulticast-PhysicalDownlinkControlChannel, UE group dedicated multicast Physical Downlink Control Channel) territory.Each UE group has oneself UM-PDCCH territory, namely UM-PDCCH territory and UE group one_to_one corresponding.In UE group, the DCI of UE can condense together, and is carried on UM-PDCCH territory and transmits.
In S120, UM-DCI is a kind of control information, and its title does not form any restriction to protection scope of the present invention, and the title as UM-RNTI, UM-PDCCH does not also form any restriction to protection scope of the present invention.Each UE group has oneself UM-DCI, i.e. UE group and UM-DCI one_to_one corresponding.By UM-DCI, the resource area that corresponding UE component is joined can be oriented to, thus make the UE in UE group can find corresponding resource area based on UM-DCI, be convenient to the mutual of DCI.
According to one embodiment of present invention, UM-DCI can comprise the PMI for the UE in corresponding UE group.Such as, if the UE of same transmit point will be selected as a UE group, so in such UE group, the PMI that them can be specified to use for each UE.Like this, identical PMI is used by making the UE in UE group, UE can use identical pre-coding matrix and DmRS (DemodulationReferenceSignal, demodulated reference signal), the UE be conducive in same UE group uses identical DmRS to carry out demodulation and is carried on information (such as using the DCI that the resource area of identical DmRS demodulation in data channel region carries) in data channel region, thus can improve the resource utilization in data channel region.
Compared to the DCI transmitted on control channel region, UM-DCI is less than even far less than the quantity of DCI due to its quantity in most cases, and its information data comprised is less than the information data of DCI, even if make UM-DCI transmit on control channel region, the expense in control channel region also can be reduced.In addition, by transmitting UM-DCI on control channel region, also the mode of the information determination channel allocation that control channel region is transmitted can be utilized consistent with UE in correlation technique, thus can be fused among existing system easily.
According to one embodiment of present invention, can come to send UM-DCI by control channel region by the method 200 shown in Fig. 2.
In S210, the special multicast wireless network of UE group based on UE group identifies UM-RNTI, scrambling UM-DCI temporarily.
The UM-RNTI of UE group can be utilized to carry out the UM-DCI of this UE group of scrambling, like this can so that UE utilizes the UM-RNTI of affiliated UE group to extract the UM-DCI of affiliated UE group on control channel region.
By scrambling UM-RNTI on UM-DCI, can be mutually compatible with existing LTER8, R9 and R10 system.Such as, still can transmit the DCI of UE on control channel region, now this DCI C-RNTI (Cell-RNTI, cell-radio network is identified temporarily) scrambling of this UE, UE can carry out blind check to its DCI as correlation technique.During the method transmission DCI provided when utilizing the embodiment of the present invention, the transmission control information of UM-RNTI scrambling on control channel region, then based on UM-RNTI, UE determines that this control information belongs to UM-DCI, in the resource area that this UM-DCI indicates, UE can as correlation technique the DCI of blind check UE.
In S220, send the UM-DCI after scrambling by control channel region to this UE group, determine UM-DCI to make the UE in this UE group based on the UM-RNTI of this UE group.
Like this, by at control channel area transmissions UM-DCI, easily to the resource area shared by UE group instruction UE group, can avoid utilizing high-level signaling to notify the extra network overhead that resource area is brought, and not affect the existing structure of existing high-level signaling and sequential etc.By utilizing UM-RNTI scrambling UM-DCI, be conducive to different UE groups goes out oneself exactly from control channel extracted region UM-DCI based on oneself UM-RNTI.
Return Fig. 1, in S130, base station can send DCI by resource area to the UE group corresponding to this resource area.UE in corresponding UE group then receives DCI in this resource area, thus realizes the mutual of DCI.
According to one embodiment of present invention, method 300 as shown in Figure 3 can be utilized to send DCI by resource area to UE group.
In S310, for each UE in UE group, the cell-radio network based on this UE identifies C-RNTI temporarily, and scrambling needs the Downlink Control Information DCI sending to this UE.
For needing the DCI sending to UE, carry out scrambling with the C-RNTI of this UE.Like this, this UE can utilize its C-RNTI to extract one's own DCI from the bulk information that it receives.
In S320, send the DCI after each UE scrambling by this resource area to this UE group, in resource area, utilize the C-RNTI of this UE to obtain the DCI sending to this UE to make each UE.
Base station is transmitted being carried in resource area with the DCI after C-RNTI scrambling, thus the DCI of UE in UE group can be condensed together to this UE group and send.Like this, the UE in UE group can extract oneself DCI in the resource area corresponding to this UE group with the C-RNTI of oneself.
According to one embodiment of present invention, method 400 as shown in Figure 4 can also be utilized to send DCI by resource area to UE group.
In S410, for each UE in UE group, the cell-radio network based on this UE identifies C-RNTI temporarily, and scrambling needs the Downlink Control Information DCI sending to this UE.
This step and S310 are substantially identical.
In S420, when being carried in resource area by the DCI after each UE scrambling, the special multicast wireless network of UE group based on this UE group identifies UM-RNTI temporarily, and resource area carries out scrambling.
Base station is carried on the DCI after the C-RNTI scrambling of UE in resource area.Before transmitting, base station can carry out scrambling with UM-RNTI to this resource area.Each UE group has oneself UM-RNTI, and namely UM-RNTI and UE organizes one_to_one corresponding.UM-RNTI can be a kind of scrambler, for distinguishing different UE groups.
Base station can have multiple to the mode that resource area carries out scrambling.Such as, scrambling by the information of UE group that resource area carries integrally, can be carried out with UM-RNTI in base station.Now, UE needs first to use this resource area of UM-RNTI descrambling, then extracts the DCI of oneself with the C-RNTI of oneself.Again such as, base station can carry out scrambling to after each DCI C-RNTI scrambling, again with UM-RNTI.Now, UE priority UM-RNTI and C-RNTI carries out descrambling, finally extracts the DCI of oneself.
In S430, send the DCI of each UE after twice scrambling by resource area to this UE group, in resource area, utilize the C-RNTI of UM-RNTI and this UE to obtain the DCI sending to this UE to make each UE.
No matter base station utilizes UM-RNTI based on what mode scrambling resource area, and the DCI of UE experienced by C-RNTI and UM-RNTI twice scrambling.DCI after twice scrambling is sent by resource area by base station, and UE utilizes UM-RNTI and C-RNTI to extract the DCI of oneself.
In the case shown in figure 4, owing to can distinguish the resource area of different UEs group with UM-RNTI, even if the multiplexing identical resource area of different UEs group, also the data separation between UE group can be come.Therefore, according to one embodiment of present invention, the resource area of joining for UE component can the multiplexing resource area with joining for other UE components.Like this, because multiple UE group can share identical resource area, the physical channel resources that the resource area decreasing transmission DCI takies, thus improve the utilization ratio of physical channel, further benefit is brought to the expansion of channel capacity.
According to the method for transmitting Downlink Control Information that the embodiment of the present invention provides, by the UE in same community is divided into different UE groups, the resource area being carried on outside control channel region by sending to the DCI of same UE group is transmitted, make DCI without the need to as correlation technique, be limited in limited capacity control channel region on transmit.Thus, DCI can take more channel resource, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, therefore can reduce the expense of UE control signal on control channel region, and then increases the capacity of control channel.In addition, by the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Next, some detail content of the method that the embodiment of the present invention provides are described in conjunction with concrete example.
Fig. 5 is the schematic diagram of the distribution example of the resource area of the carrying DCI joined for different UEs component.
In Figure 5, the channel resource formed for time and frequency is described.Left side represents control channel region, in 3GPPLTE system, can be called as again Unicast areas (Simulcastzone); Right side representative data channel region, can be called as again multicast area (Multicastzone) in 3GPPLTE system.
UE is divided into three UE groups, is respectively UE group 1, UE group 2, UE group 3.These three group corresponding UM-DCI1, UM-DCI2 and UM-DCI3 transmitted on control channel region respectively, and base station is respectively these three UE groups and is assigned with resource area UM-PDCCH territory 1, UM-PDCCH territory 2 and UM-PDCH territory 3 in data channel region, UM-PDCCH territory 1 identical physical channel resources multiplexing with UM-PDCCH territory 2, UM-PDCCH territory 3 then with their frequency division multiplexing physical channel resources.
UM-DCI1, UM-DCI2 and UM-DCI3 point to UM-PDCCH territory 1, UM-PDCCH territory 2 and UM-PDCH territory 3 respectively.Like this, after the UE of three UE groups determines the UM-DCI of affiliated UE group, corresponding UM-PDCCH territory can be found based on UM-DCI, and determine that the DCI of oneself is carried on this UM-PDCCH territory.
Fig. 6 is the schematic diagram of the scrambling process according to the embodiment of the present invention.Can carry out scrambling to UM-DCI, DCI, UM-PDCCH territory in several ways, Fig. 6 is only an example, so that understand.Illustrate only the scrambling mode relevant to a UE in a UE group in figure 6.
The UM-DCI UM-RNTI corresponding with the UE group belonging to this UE carries out scrambling.The DCI of this UE C-RNTI scrambling of this UE.When in the UE group belonging to this UE, the DCI of all UE is carried on the UM-PDCCH territory corresponding to this UE group, the information of this UE group is belonged to integrally by UM-PDCCH territory, scrambling is carried out with UM-RNTI, like this, even if the UE group belonging to this UE takies identical resource area with other UE groups, also respective information can be distinguished.In addition, because this UM-PDCCH territory is included in data channel region, also need as correlation technique, use community ID (CellID) to carry out scrambling.The DCI of this UE is oriented to the PDSCH channel of this UE distribution, and this PDSCH carries out scrambling with the C-RNTI of this UE and community ID as correlation technique.
Below, composition graphs 7 describes the method 700 for transmitting DCI according to the embodiment of the present invention.
As shown in Figure 7, method 700 comprises: in S710, when the UE of same community being divided at least one UE group, determines affiliated UE group; In S720, control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that base station sends; In S730, based on UM-DCI, determine the resource area that base station is joined for this UE component outside control channel region; In S740, resource area receives the Downlink Control Information DCI that base station sends.
When the UE in same community being divided into different UE groups, UE is after determining affiliated UE group, and the UM-DCI according to this UE group can find the resource area carrying DCI outside control channel region, thus receives DCI by this resource area.
Like this, the control channel region that DCI can not be limited in limited capacity as correlation technique is transmitted, makes DCI can take more channel resource.Therefore, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, makes it possible to the expense reducing UE control signal on control channel region, and then increases the capacity of control channel.In addition, by receiving the control information in indexed resource region on control channel region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Such as, method 700 can be performed by UE.
In S710, the mode UE of same community being divided into UE group can corresponding description in the S110 of reference method 100.Such as, a UE group can be divided into by selecting the UE of same transmit point.Again such as, the UE of the identical PMI of feedback can be divided into a UE group.Also such as, can using each UE separately as a UE group.
When dividing into groups, UE needs the UE group determined belonging to oneself.UE can determine affiliated UE group in several ways.Such as, the UE UE group that its high-level signaling can be sent to determine belonging to it by base station.Again such as, UE can determine affiliated UE group according to predetermined set.For example, when the UE of the identical PMI of feedback is divided into one group, UE just can know affiliated UE group according to the PMI oneself fed back.
In S720, UE receives UM-DCI on control channel region.The operation of S720 is due to corresponding with the operation of the S120 in method 100, and therefore the related content of S720 with reference to the associated description in S120, in order to avoid repeating, can repeat no more.
In S730, UE can determine by UM-DCI the resource area that the UE component of base station belonging to UE is joined.The operation of base station can with reference to the S110 in said method 100.
According to one embodiment of present invention, UM-DCI can indicate the resource area that base station is joined for this UE component in data channel region.Like this, due to base station can in data channel region Resources allocation neatly, make base station easily can distribute the resource area of carrying DCI in data channel region.
According to one embodiment of present invention, UM-DCI can comprise the PMI for the UE in this UE group.Like this, the identical PMI that UE in same UE group is specified by UM-DCI owing to can receive base station, therefore identical pre-coding matrix and DmRS can be used, thus the information (such as using the DCI that the resource area of identical DmRS demodulation in data channel region carries) that the UE be conducive in same UE group uses identical DmRS to come in the upper data channel region of demodulation carrying, make it possible to the resource utilization improving data channel region.
According to one embodiment of present invention, the resource area of the UE group belonging to UE can with the resource area frequency division multiplexing of joining for other UE components.Like this, each UE group can have oneself independently resource area.
In addition, the resource area of the UE group belonging to UE can be multiplexed with the resource area that other UE components are joined.Like this, owing to there is multiplexing resource area, so need multiplexing resource area together to be distinguished by certain mode, to make UE group extract from resource area the DCI sending to oneself smoothly, such as, utilize the resource area of the corresponding UE group of UM-RNTI scrambling.
In S740, UE receives DCI in the resource area determined based on UM-DCI.
According to one embodiment of present invention, C-RNTI can be identified based on the cell-radio network of UE temporarily, resource area receives the DCI that base station sends to this UE, is wherein sent to the DCI of this UE by base station based on the C-RNTI scrambling of this UE and be carried in resource area and transmit.
The associative operation of base station can with reference to S310 and S320 in said method 300.UE utilizes the C-RNTI of oneself can extract one's own DCI from resource area.
According to one embodiment of present invention, can identify that the cell-radio network of UM-RNTI and UE identifies C-RNTI temporarily based on the special multicast wireless network of UE group of UE group temporarily, resource area receives the DCI that base station sends to this UE, wherein sent to the DCI of this UE based on the C-RNTI scrambling of this UE by base station, when being carried in resource area, the UM-RNTI based on this UE group carries out scrambling and transmits in resource area.
The associative operation of base station can with reference to the S410 to S430 in said method 400.Such as, after UE determines resource area based on UM-DCI, if the DCI belonging to UE group in resource area is integrally carried out scrambling with UM-RNTI by base station, then first UE utilizes UM-RNTI to carry out descrambling to the information in this resource area, and recycling C-RNTI extracts one's own DCI.Again such as, if after the DCI of base station C-RNTI scrambling UE, use UM-DCI scrambling again, then first UE utilizes UM-RNTI descrambling, recycling C-RNTI descrambling, to extract one's own DCI from resource area.
The operation of S740 is due to corresponding with the operation of the S130 in method 100, and therefore the related content of S740 with reference to the associated description in S130, in order to avoid repeating, can repeat no more.
According to the method for transmitting Downlink Control Information that the embodiment of the present invention provides, when the UE in same community being divided into different UE groups, UE is after determining affiliated UE group, the resource area outside the control channel region carrying DCI can be found according to the UM-DCI of this UE group, thus receive DCI from this resource area.Like this, the control channel region that DCI can not be limited in limited capacity as correlation technique is transmitted, makes DCI can take more channel resource.Therefore, the expense of UE control signal can be reduced on control channel region, and then increase the capacity of control channel.In addition, UE determines resource area by receiving UM-DCI on control channel region, and UE can be made to know the position of resource area easily based on the control information that control channel region is transmitted, and avoids utilizing high-level signaling to cause extra network overhead.
Especially, under above-mentioned method 100 to 400 and 700 can being used in LTER11CoMPScenario4 scene, the community namely related in method is the community under LTER11CoMPScenario4 scene.In 3GPPRAN (RadioAccessNetwork, wireless access network) 1 the 63rd meeting, define four kinds of CoMP scenes.Wherein under the 4th kind of scene, in macro base station region, the transfer point of all RRH of comprising all shares same community ID.Owing to there is no the gain of cell splitting, UE number in the community of the 4th kind of scene compares other three kinds of scenes (other three kinds of scenes have employed cell splitting technology) to be increased exponentially, and along with the increase of UE number in community, control channel capacity in control channel region and be restricted.Therefore, the method that the embodiment of the present invention can be utilized to provide is transmitted to be carried on by the DCI of UE in the region outside control channel region, thus expands control channel capacity.Certainly, except above-mentioned network environment, those skilled in the art it will also be appreciated that, when in other network environments (such as, hot zones) in when occurring controlling the limited situation of channel capacity in control channel region, also can by the method utilizing the embodiment of the present invention to provide, Resources allocation region outside control channel region, the DCI of UE is carried in resource area and transmits, to solve the problem of control channel capacity constraint.
Above, the method for transmitting DCI according to the embodiment of the present invention is described.Below, composition graphs 8 to Figure 11 describes the structured flowchart according to the relevant device of the embodiment of the present invention.
Fig. 8 is the structured flowchart of the access device 800 according to the embodiment of the present invention.
Access device 800 comprises distribution module 810, first sending module 820 and the second sending module 830.When distribution module 810 is used in and the UE of same community is divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region.First sending module 820 can be used for sending UE group special multicast Downlink Control Information UM-DCI by control channel region to this UE group, determines resource area to make this UE group based on UM-DCI.Second sending module 830 can be used for sending Downlink Control Information DCI by resource area to this UE group.
The above and other operation of distribution module 810, first sending module 820 and the second sending module 830 and/or function with reference to the S110 to S130 of said method 100, in order to avoid repeating, can not repeat them here.
According to the access device that the embodiment of the present invention provides, by the UE in same community is divided into different UE groups, in units of UE group, transmit in the resource area being mapped to outside control channel region by sending to the DCI of same UE group, and utilize the UM-DCI transmitted on control channel region to indicate this resource area so that UE group correctly receives DCI.Like this, DCI without the need to as correlation technique, be limited in limited capacity control channel region on transmit, thus make DCI can take more channel resource, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, therefore can reduce the expense of UE control signal on control channel region, and then increase the capacity of control channel.In addition, by the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Fig. 9 is the structured flowchart of the access device 900 according to the embodiment of the present invention.Distribution module 910, first sending module 920 in access device 900 is substantially identical with the second sending module 830 with distribution module 810, first sending module 820 in access device 800 with the second sending module 930.
According to embodiments of the invention, by multiple transmission, the UE of same community can be divided at least one UE group.Such as, a UE group can be divided into by selecting the UE of same transmit point.Again such as, the UE of the identical PMI of feedback can be divided into a UE group.Again such as, can using each UE separately as a UE group.
According to one embodiment of present invention, distribution module 910 can be used for the resource area of joining for UE component in data channel region.
According to one embodiment of present invention, the first sending module 920 can comprise the first scrambling unit 922 and the first transmitting element 924.First scrambling unit 922 can be used for identifying UM-RNTI, scrambling UM-DCI based on the special multicast wireless network of UE group of UE group temporarily.First transmitting element 924 can be used for sending the UM-DCI after scrambling by control channel region to UE group, determines UM-DCI to make UE group based on the UM-RNTI of UE group.
According to one embodiment of present invention, the second sending module 930 can comprise the second scrambling unit 932 and the second transmitting element 934.Second scrambling unit 932 can be used for for each UE in UE group, and the cell-radio network based on this UE identifies C-RNTI temporarily, and scrambling needs the Downlink Control Information DCI sending to this UE.Second transmitting element 934 can be used for sending the DCI after each UE scrambling by resource area to UE group, utilizes the C-RNTI of this UE to obtain the DCI sending to this UE to make each UE in resource area.
According to one embodiment of present invention, the second transmitting element 934 can comprise scrambling subelement 936 and send subelement 938.Scrambling subelement 936 can be used for when being carried in resource area by the DCI after each UE scrambling, and the special multicast wireless network of UE group based on UE group identifies UM-RNTI temporarily, and resource area carries out scrambling.Send subelement 938 to can be used for sending the DCI of each UE after twice scrambling by resource area to UE group, in resource area, utilize the C-RNTI of UM-RNTI and this UE to obtain the DCI sending to this UE to make each UE.Now, according to one embodiment of present invention, the resource area that distribution module 910 is distributed can be multiplexed with the resource area that other UE components are joined.
According to one embodiment of present invention, no matter whether carry out scrambling with UM-RNTI to resource area, the resource area that distribution module 910 is distributed can with the resource area frequency division multiplexing of joining for other UE components.
According to one embodiment of present invention, UM-DCI can comprise the PMI for the UE in UE group.
According to one embodiment of present invention, community can be the community under LTER11CoMPScenario4 scene.
Above and other operation and/or the function of distribution module 910, first scrambling unit 922, first transmitting element 924, second scrambling unit 932, second transmitting element 934, scrambling subelement 936 and transmission subelement 938 can with reference to S420 and S430 in S210 and S220 in the S110 in said method 100, method 200, S310 and S320 in method 300 and method 400, in order to avoid repeating, do not repeat them here.
According to the access device that the embodiment of the present invention provides, by utilizing UM-RNTI scrambling UM-DCI, be conducive to different UE groups goes out oneself exactly from control channel extracted region UM-DCI based on oneself UM-RNTI.By utilizing UM-RNTI, scrambling is carried out to resource area, make multiple UE group can share identical resource area, thus the physical channel resources that the resource area reducing transmission DCI takies, the utilization ratio of physical channel can be improved, further benefit is brought to the expansion of channel capacity.In addition, by comprising identical PMI in UM-DCI, the UE of same UE group can use identical DmRS to carry out the DCI that the resource area of demodulation in data channel region carries, thus can improve the resource utilization in data channel region.
Figure 10 is the structured flowchart of the subscriber equipment 1000 according to the embodiment of the present invention.
Subscriber equipment 1000 comprises the first determination module 1010, first receiver module 1020, second determination module 1030 and the second receiver module 1040.When first determination module 1010 is used in and the UE of same community is divided at least one UE group, determine affiliated UE group.First receiver module 1020 is used in UE group special multicast Downlink Control Information UM-DCI control channel region receiving this UE group that base station sends.Second determination module 1030 can be used for based on UM-DCI, determines the resource area that base station is joined for this UE component outside control channel region.Second receiver module 1040 is used in Downlink Control Information DCI resource area receiving base station transmission.
The above and other operation of the first determination module 1010, first receiver module 1020, second determination module 1030 and the second receiver module 1040 and/or function with reference to the S710 to S740 in said method 700, in order to avoid repeating, can not repeat them here.
According to the subscriber equipment that the embodiment of the present invention provides, when the UE in same community being divided into different UE groups, this subscriber equipment can after determining affiliated UE group, find the resource area carrying DCI outside control channel region according to the UM-DCI of this UE group, thus receive DCI by this resource area.Like this, the control channel region that DCI can not be limited in limited capacity as correlation technique is transmitted, makes DCI can take more channel resource.Therefore, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, makes it possible to the expense reducing UE control signal on control channel region, and then increases the capacity of control channel.In addition, by the control information in control channel areas accept indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
According to one embodiment of present invention, various ways can be had UE to be divided into different UE groups.Such as, a UE group can be divided into by selecting the UE of same transmit point.Again such as, the UE of the identical PMI of feedback can be divided into a UE group.Again such as, can using each UE separately as a UE group.
According to one embodiment of present invention, the second determination module 1030 can be used for based on UM-DCI, determines the resource area that base station is joined for this UE component in data channel region.
According to one embodiment of present invention, first receiver module 1020 can be used for identifying UM-RNTI based on the special multicast wireless network of UE group of this UE group temporarily, control channel region receives the UM-DCI of this UE group that base station sends, wherein by the UM-DCI of base station based on this UE group of UM-RNTI scrambling of this UE group.
According to one embodiment of present invention, second receiver module 1040 can be used for identifying C-RNTI based on the cell-radio network of subscriber equipment 1000 temporarily, resource area receives the DCI that base station sends to subscriber equipment 1000, is wherein sent to the DCI of subscriber equipment 1000 by base station based on the C-RNTI scrambling of subscriber equipment 1000 and be carried in resource area and transmit.
According to one embodiment of present invention, second receiver module 1040 can be used for identifying that the cell-radio network of UM-RNTI and subscriber equipment 1000 identifies C-RNTI temporarily based on the special multicast wireless network of UE group of this UE group temporarily, resource area receives the DCI that base station sends to subscriber equipment 1000, wherein sent to the DCI of subscriber equipment 1000 based on the C-RNTI scrambling of subscriber equipment 1000 by base station, when being carried in resource area, the UM-RNTI based on this UE group carries out scrambling and transmits in resource area.Now, according to one embodiment of present invention, the resource area that the second determination module 1030 is determined can be multiplexed with the resource area that other UE components are joined.
Whether according to one embodiment of present invention, no matter use UM-RNTI to carry out scrambling in resource area, the resource area that the second determination module 1030 is determined can with the resource area frequency division multiplexing of joining for other UE components.
According to one embodiment of present invention, UM-DCI can comprise the PMI for the UE in this UE group.
According to one embodiment of present invention, community can be the community under LTER11CoMPScenario4 scene.
According to the subscriber equipment that the embodiment of the present invention provides, by determining UM-DCI based on UM-RNTI, be conducive to the UM-DCI going out affiliated UE group exactly from control channel extracted region.By distinguishing resource area based on UM-RNTI, make multiple UE group can share identical resource area, thus the physical channel resources that the resource area reducing transmission DCI takies, the utilization ratio of physical channel can be improved, further benefit is brought to the expansion of channel capacity.In addition, by comprising identical PMI in UM-DCI, the UE of same UE group can use identical DmRS to carry out the DCI that the resource area of demodulation in data channel region carries, thus can improve the resource utilization in data channel region.
Next, with reference to Figure 11, the system 1100 for transmitting DCI provided according to the embodiment of the present invention is described.
System 1100 can comprise access device 1110 and subscriber equipment 1120.
When access device 1110 is used in and the UE of same community is divided at least one UE group, for a UE component at least one UE group joins the resource area outside control channel region; UE group special multicast Downlink Control Information UM-DCI is sent to this UE group by control channel region; Downlink Control Information DCI is sent to this UE group by resource area.
When subscriber equipment 1120 is used in and the UE of same community is divided at least one UE group, determine affiliated UE group; Control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that access device 1110 sends; Based on this UM-DCI, determine the resource area that access device 1110 is joined for this UE component outside control channel region; This resource area receives the Downlink Control Information DCI that access device 1110 sends.
The above and other operation of access device 1110 and/or function can with reference to the associated description in said method 100 to 400.The above and other operation of subscriber equipment 1120 and/or function with reference to the associated description in said method 700, in order to avoid repeating, can not repeat them here.
According to the system for transmitting Downlink Control Information that the embodiment of the present invention provides, by the UE in same community is divided into different UE groups, access device can in units of UE group, transmit in the resource area being mapped to outside control channel region by sending to the DCI of same UE group, and utilize the UM-DCI transmitted on control channel region to indicate this resource area so that UE group correctly receives DCI.Like this, DCI without the need to as correlation technique, be limited in limited capacity control channel region on transmit, thus make DCI can take more channel resource, the transmission of DCI can not be restricted because of controlling the restriction of channel capacity in control channel region, therefore can reduce the expense of UE control signal on control channel region, and then increase the capacity of control channel.In addition, by the control information in control channel area transmissions indexed resource region, be conducive to saving the overhead utilizing high-level signaling indexed resource region to cause.
Those skilled in the art can recognize, in conjunction with the various method steps described in embodiment disclosed herein and unit, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe step and the composition of each embodiment in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Those skilled in the art can make differently to realize described function to each specific application, but this realization should not thought and exceeds scope of the present invention.
The method step described in conjunction with embodiment disclosed herein can be implemented with the software program of hardware, processor execution or the combination of the two.Software program can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Although illustrate and describe some embodiments of the present invention, it should be appreciated by those skilled in the art that without departing from the principles and spirit of the present invention, can carry out various amendment to these embodiments, such amendment should fall within the scope of the present invention.
Claims (30)
1. for transmitting a method for Downlink Control Information, it is characterized in that, comprising:
When the user equipment (UE) of same community being divided at least one UE group, for the UE component at least one UE group described joins the resource area outside control channel region;
Send UE group special multicast Downlink Control Information UM-DCI by described control channel region to a described UE group, described UM-DCI determines described resource area in order to make a described UE group based on described UM-DCI;
Downlink Control Information DCI is sent to a described UE group by described resource area.
2. method according to claim 1, is characterized in that, the described UE by same community is divided at least one UE group and comprises one of following:
A UE group is divided into by selecting the UE of same transmit point;
The UE of identical for feedback pre-coding matrix instruction PMI is divided into a UE group;
Using each UE separately as a UE group.
3. method according to claim 1, is characterized in that, the described resource area being a UE component at least one UE group described is joined outside control channel region comprises:
The resource area in data channel region is joined for this UE component.
4. method according to claim 1, is characterized in that, describedly sends UE group special multicast Downlink Control Information UM-DCI by described control channel region to this UE group and comprises:
The special multicast wireless network of UE group based on this UE group identifies UM-RNTI, UM-DCI described in scrambling temporarily;
Send the described UM-DCI after scrambling by described control channel region to this UE group, determine described UM-DCI to make this UE group based on the UM-RNTI of this UE group.
5. method according to claim 1, is characterized in that, describedly sends Downlink Control Information DCI by described resource area to this UE group and comprises:
For each UE in this UE group, the cell-radio network based on this UE identifies C-RNTI temporarily, and scrambling needs the Downlink Control Information DCI sending to this UE;
Send the DCI after described each UE scrambling by described resource area to this UE group, in described resource area, utilize the C-RNTI of this UE to obtain the DCI sending to this UE to make described each UE.
6. method according to claim 5, is characterized in that, describedly sends the DCI after described each UE scrambling by described resource area to this UE group and comprises:
When being carried in described resource area by the DCI after described each UE scrambling, the special multicast wireless network of UE group based on this UE group identifies UM-RNTI temporarily, and described resource area carries out scrambling;
Send the DCI of described each UE after twice scrambling by described resource area to this UE group, in described resource area, utilize the C-RNTI of described UM-RNTI and this UE to obtain the DCI sending to this UE to make described each UE.
7. method according to claim 6, is characterized in that, described resource area is multiplexed with the resource area that other UE components are joined.
8. method according to claim 1, is characterized in that, described resource area and the resource area frequency division multiplexing of joining for other UE components.
9. for transmitting a method for Downlink Control Information, it is characterized in that, comprising:
When the user equipment (UE) of same community being divided at least one UE group, determine affiliated UE group;
Control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that base station sends;
Based on described UM-DCI, determine the resource area that described base station is joined for this UE component outside described control channel region;
Described resource area receives the Downlink Control Information DCI that described base station sends.
10. method according to claim 9, is characterized in that, the described UE by same community is divided at least one UE group and comprises one of following:
A UE group is divided into by selecting the UE of same transmit point;
The UE of identical for feedback pre-coding matrix instruction PMI is divided into a UE group;
Using each UE separately as a UE group.
11. methods according to claim 9, is characterized in that, described based on described UM-DCI, determine that the resource area that described base station is joined for this UE component outside described control channel region comprises:
Based on described UM-DCI, determine the resource area that described base station is joined for this UE component in data channel region.
12. methods according to claim 9, is characterized in that, the described UE group special multicast Downlink Control Information UM-DCI receiving this UE group that base station sends on control channel region comprises:
The special multicast wireless network of UE group based on this UE group identifies UM-RNTI temporarily, control channel region receives the UM-DCI of this UE group that base station sends, wherein by the UM-DCI of described base station based on this UE group of UM-RNTI scrambling of this UE group.
13. methods according to claim 9, is characterized in that, the described Downlink Control Information DCI receiving the transmission of described base station in described resource area comprises:
Cell-radio network based on this UE identifies C-RNTI temporarily, described resource area receives the DCI that described base station sends to this UE, is wherein sent to the DCI of this UE by described base station based on the C-RNTI scrambling of this UE and be carried in described resource area and transmit.
14. methods according to claim 9, is characterized in that, the described Downlink Control Information DCI receiving the transmission of described base station in described resource area comprises:
The special multicast wireless network of UE group based on this UE group identifies that the cell-radio network of UM-RNTI and this UE identifies C-RNTI temporarily temporarily, described resource area receives the DCI that described base station sends to this UE, wherein sent to the DCI of this UE based on the C-RNTI scrambling of this UE by described base station, when being carried in described resource area, the UM-RNTI based on this UE group carries out scrambling and transmits in described resource area.
15. methods according to claim 14, is characterized in that, described resource area is multiplexed with the resource area that other UE components are joined.
16. methods according to claim 9, is characterized in that, described resource area and the resource area frequency division multiplexing of joining for other UE components.
17. methods according to claim 9, is characterized in that, described UM-DCI comprises the PMI for the UE in this UE group.
18. 1 kinds of access devices, is characterized in that, comprising:
Distribution module, for when the user equipment (UE) of same community being divided at least one UE group, for the UE component at least one UE group described joins the resource area outside control channel region;
First sending module, for sending UE group special multicast Downlink Control Information UM-DCI by described control channel region to a described UE group, described UM-DCI determines described resource area in order to make a described UE group based on described UM-DCI;
Second sending module, for sending Downlink Control Information DCI by described resource area to a described UE group.
19. access devices according to claim 18, is characterized in that, the described UE by same community is divided at least one UE group and comprises one of following:
A UE group is divided into by selecting the UE of same transmit point;
The UE of identical for feedback precoding instruction PMI is divided into a UE group;
Using each UE separately as a UE group.
20. access devices according to claim 18, is characterized in that, described distribution module is used for the resource area of joining for this UE component in data channel region.
21. access devices according to claim 18, is characterized in that, described first sending module comprises:
First scrambling unit, identifies UM-RNTI, UM-DCI described in scrambling for the special multicast wireless network of UE group based on this UE group temporarily;
First transmitting element, for sending the described UM-DCI after scrambling by described control channel region to this UE group, determines described UM-DCI to make this UE group based on the UM-RNTI of this UE group.
22. access devices according to claim 18, is characterized in that, described second sending module comprises:
Second scrambling unit, for for each UE in this UE group, the cell-radio network based on this UE identifies C-RNTI temporarily, and scrambling needs the Downlink Control Information DCI sending to this UE;
Second transmitting element, for sending the DCI after described each UE scrambling by described resource area to this UE group, utilizes the C-RNTI of this UE to obtain the DCI sending to this UE to make described each UE in described resource area.
23. access devices according to claim 22, is characterized in that, described second transmitting element comprises:
Scrambling subelement, for when being carried in described resource area by the DCI after described each UE scrambling, the special multicast wireless network of UE group based on this UE group identifies UM-RNTI temporarily, and described resource area carries out scrambling;
Sending subelement, for sending the DCI of described each UE after twice scrambling by described resource area to this UE group, in described resource area, utilizing the C-RNTI of described UM-RNTI and this UE to obtain the DCI sending to this UE to make described each UE.
24. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
First determination module, for when the user equipment (UE) of same community being divided at least one UE group, determines affiliated UE group;
First receiver module, for receiving the UE group special multicast Downlink Control Information UM-DCI of this UE group that base station sends on control channel region;
Second determination module, for based on described UM-DCI, determines the resource area that described base station is joined for this UE component outside described control channel region;
Second receiver module, for receiving the Downlink Control Information DCI that described base station sends in described resource area.
25. subscriber equipmenies according to claim 24, is characterized in that, the described UE by same community is divided at least one UE group and comprises one of following:
A UE group is divided into by selecting the UE of same transmit point;
The UE of identical for feedback pre-coding matrix instruction PMI is divided into a UE group;
Using each UE separately as a UE group.
26. subscriber equipmenies according to claim 24, is characterized in that, described second determination module is used for based on described UM-DCI, determines the resource area that described base station is joined for this UE component in data channel region.
27. subscriber equipmenies according to claim 24, it is characterized in that, described first receiver module is used for identifying UM-RNTI based on the special multicast wireless network of UE group of this UE group temporarily, control channel region receives the UM-DCI of this UE group that base station sends, wherein by the UM-DCI of described base station based on this UE group of UM-RNTI scrambling of this UE group.
28. subscriber equipmenies according to claim 24, it is characterized in that, described second receiver module is used for identifying C-RNTI based on the cell-radio network of described subscriber equipment temporarily, described resource area receives the DCI that described base station sends to described subscriber equipment, is wherein sent to the DCI of described subscriber equipment by described base station based on the C-RNTI scrambling of described subscriber equipment and be carried in described resource area and transmit.
29. subscriber equipmenies according to claim 24, it is characterized in that, described second receiver module is used for identifying that the cell-radio network of UM-RNTI and described subscriber equipment identifies C-RNTI temporarily based on the special multicast wireless network of UE group of this UE group temporarily, described resource area receives the DCI that described base station sends to described subscriber equipment, wherein sent to the DCI of described subscriber equipment based on the C-RNTI scrambling of described subscriber equipment by described base station, when being carried in described resource area, UM-RNTI based on this UE group carries out scrambling and transmits in described resource area.
30. 1 kinds, for transmitting the system of Downlink Control Information, is characterized in that, described system comprises access device and subscriber equipment, wherein:
Described access device is used for when the user equipment (UE) of same community being divided at least one UE group, for a UE component at least one UE group described joins the resource area outside control channel region; UE group special multicast Downlink Control Information UM-DCI is sent to this UE group by described control channel region; Downlink Control Information DCI is sent to this UE group by described resource area;
Described subscriber equipment is used for when the UE of same community being divided at least one UE group, determines affiliated UE group; Described control channel region receives the UE group special multicast Downlink Control Information UM-DCI of this UE group that described access device sends; Based on this UM-DCI, determine the resource area that described access device is joined for this UE component outside described control channel region; This resource area receives the Downlink Control Information DCI that described access device sends.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3565333A4 (en) * | 2017-01-05 | 2020-01-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Signaling transmission method and device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301065B (en) | 2013-07-16 | 2018-12-11 | 电信科学技术研究院 | A kind of instruction of uplink-downlink configuration determines method and base station, terminal |
| CN107920333B (en) * | 2016-10-08 | 2021-11-02 | 中国移动通信有限公司研究院 | Multicast scheduling method, HARQ information receiving method, user equipment and base station |
| US10595326B2 (en) * | 2016-12-12 | 2020-03-17 | Mediatek Inc. | Methods of efficient downlink control information transmission |
| WO2019136647A1 (en) * | 2018-01-10 | 2019-07-18 | 富士通株式会社 | Data transmitting method and device, and communication system |
| CN110474741B (en) * | 2018-05-11 | 2021-01-15 | 华为技术有限公司 | Communication method and device |
| CN110831186B (en) | 2018-08-10 | 2023-10-13 | 大唐移动通信设备有限公司 | Scheduling method, scheduling device, base station, terminal and computer readable storage medium |
| CN111246588B (en) * | 2020-01-10 | 2021-10-26 | 北京邮电大学 | Method for solving out-of-order scheduling between different priority services in NR system |
| EP4132155A4 (en) * | 2020-05-07 | 2023-05-03 | Huawei Technologies Co., Ltd. | Method and apparatus for supporting transmission of hybrid automatic repeat request acknowledgement feedback information of multicast service |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007032289A1 (en) * | 2005-09-12 | 2007-03-22 | Ntt Docomo, Inc. | Data transmitting system, data transmitting method, base station and mobile station |
| CN101060699A (en) * | 2006-04-17 | 2007-10-24 | 北京三星通信技术研究有限公司 | A downlink control signaling transmission method and equipment |
| CN101453774A (en) * | 2007-11-30 | 2009-06-10 | 华为技术有限公司 | Packet assignment method, system and apparatus |
| CN101925077A (en) * | 2009-06-09 | 2010-12-22 | 大唐移动通信设备有限公司 | Transmission and indication method and device for relay system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007032289A1 (en) * | 2005-09-12 | 2007-03-22 | Ntt Docomo, Inc. | Data transmitting system, data transmitting method, base station and mobile station |
| CN101060699A (en) * | 2006-04-17 | 2007-10-24 | 北京三星通信技术研究有限公司 | A downlink control signaling transmission method and equipment |
| CN101453774A (en) * | 2007-11-30 | 2009-06-10 | 华为技术有限公司 | Packet assignment method, system and apparatus |
| CN101925077A (en) * | 2009-06-09 | 2010-12-22 | 大唐移动通信设备有限公司 | Transmission and indication method and device for relay system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3565333A4 (en) * | 2017-01-05 | 2020-01-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Signaling transmission method and device |
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