CN102118864B - Method and equipment for mapping and numbering resource element groups (REG) of backhaul link control channel of relay system - Google Patents
Method and equipment for mapping and numbering resource element groups (REG) of backhaul link control channel of relay system Download PDFInfo
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Abstract
The invention discloses a method and equipment for mapping and numbering resource element groups (REG) of a backhaul link control channel of a relay system. The mapping method comprises the following steps that: a network side reserves resource elements (RE) and stores a demodulation reference signal (DMRS) in a relay physical downlink control channel (R-PDCCH) sent to a relay node; and in consideration of reserving a resource for the DMRS, the network side defines a new REG mapping method to map all of the usable REs to the REGs. In the embodiment of the invention, the network side reserves the resource for the DMRS in the R-PDCCH sent to the relay node and maps all of usable regions of the R-PDCCH to the REGs according to a configured REG mapping relationship, so that the use efficiency of the R-PDCCH is improved.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of REG mapping, method for numbering serial and equipment of relay system backhaul link control channel.
Background technology
The network configuration of LTE-A system comprises CN (Core Network, core net), eNB (evolved Node-B, base station), RN (Relay Node, via node) and UE (UserEquipment, user terminal) as shown in Figure 1.ENB is connected to core net by wireline interface, and RN is connected to eNB by wave point, and UE is connected to eNB or RN by wave point.Wherein, the link between RN and eNB is called backhual (backhaul) link.ENB uses special control channel R-PDCCH to send control command to RN on the backhual link.
Have public guide frequency and special pilot frequency for user two class pilot tones in the LTE system.Wherein, public guide frequency is that full bandwidth sends, and concrete configuration is relevant with the ID of residential quarter, and namely the pattern with regard to its public guide frequency in a residential quarter is identical.Because PDCCH is that a plurality of users detect simultaneously, as seen its pilot tone must be all to all users, and is identical, so control channel PDCCH only can come demodulation with public guide frequency.
In the LTE-A system, introduced the DMRS that is used for the user data demodulation.DMRS is in fact very similar with the special pilot frequency for user of LTE system, and difference is mainly the transmission that DM-RS supports a plurality of data flow of a plurality of ports, and the special pilot frequency for user of LTE system is only supported the transmission of single port single data stream.
The pattern of complete public guide frequency and DM-RS pilot tone as shown in Figure 2, wherein, subcarrier is for being numbered from top to bottom.REG (Resource Element Group, Resource Block group) is the minimum unit that control channel shines upon to physical resource, and each REG is comprised of 4 available RE (Resource Element, Resource Block), does not wherein comprise the RE that pilot tone is shared.In the mapping rule of LTE system, REG shines upon according to the preferential order of time domain.PDCCH takies the OFDM symbolic number as 3 as example in the LTE system, and in 2 port public guide frequencies and 4 port public guide frequency situations, the mapping rule of REG respectively as shown in Figure 3 and Figure 4.
Can find out from the configuration of Fig. 3 and Fig. 4, for a PRB (Physical Resource Block, Physical Resource Block) public guide frequency pattern (model), do not exist and always have 12 available RE in the PDCCH row of public guide frequency and can be mapped as 3 REG, for the PDCCH row that have public guide frequency, public guide frequency consumes 4 RE in its column, therefore still have 8 RE can be mapped as 2 REG, in each PRB, the available RE of each row can be mapped in an integer REG with not remaining thereby make in the pattern of public guide frequency.
But, after the DMRS that introduces 4 ports, can consume 6 RE of its place R-PDCCH (relay system backhaul link control channel) row due to DMRS, only remain 6 available RE thereby make in these R-PDCCH row.At present in the LTE-A system, REG mapping scheme in the situation of DMRS in R-PDCCH also is not provided, and according to the requirement of 4 RE in each REG in existing LTE system at same row, remain 2 RE in each DMRS place R-PDCCH row, thereby cause the waste of resource.
Summary of the invention
The embodiment of the present invention provides a kind of REG mapping, method for numbering serial and equipment of relay system backhaul link control channel, to realize that all available RE in R-PDCCH all are mapped to corresponding REG.
The embodiment of the present invention provides a kind of REG mapping method of relay system backhaul link control channel, comprising:
Network side is according to the Resource Block RE that reserves for pilot signal DMRS, and resource allocation piece group REG mapping relations allow the available RE of different R-PDCCH to be mapped to same REG;
Described network side is by the described RE transmission of control signals that is mapped to REG.
The embodiment of the present invention provides a kind of REG method for numbering serial that is applied to the described REG mapping method of the claims, comprising:
Network side obtains pilot signal DMRS place R-PDCCH row and non-DMRS place R-PDCCH row;
Described network side carries out the REG numbering according to the REG numbering relation of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row.
The embodiment of the present invention provides a kind of REG mapped device of relay system backhaul link control channel, comprising:
Map unit is used for according to the Resource Block RE for pilot signal DMRS reservation, and resource allocation piece group REG mapping relations allow the available RE of different R-PDCCH to be mapped to same REG;
Transmission unit is for be mapped to the RE transmission of control signals of REG by described map unit.
The embodiment of the present invention provides a kind of REG numbering equipment that is applied to the described REG mapped device of the claims, comprising:
R-PDCCH row acquiring unit is used for obtaining pilot signal DMRS place R-PDCCH row and non-DMRS place R-PDCCH row;
Numbered cell is used for according to the REG numbering relation of configuration, described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row being carried out the REG numbering.
Compared with prior art, the embodiment of the present invention has the following advantages at least:
In the embodiment of the present invention, network side is reserved pilot signal DMRS in the control channel R-PDCCH that sends to via node, and according to the REG mapping relations of configuration, the Free Region of R-PDCCH all is mapped to REG, improves the service efficiency of R-PDCCH.
Description of drawings
In order to be illustrated more clearly in embodiments of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiments of the invention or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic network structure of LTE-A system in prior art;
Fig. 2 is the pattern schematic diagram of public guide frequency and DM-RS pilot tone in prior art;
Fig. 3 is the mapping pattern schematic diagram of REG in 4 port public guide frequency situations in prior art;
Fig. 4 is the mapping pattern schematic diagram of REG in 2 port public guide frequency situations in prior art;
Fig. 5 is the schematic flow sheet of the REG mapping method of the relay system backhaul link control channel that provides of the embodiment of the present invention one;
Fig. 6 is the schematic flow sheet of the REG mapping method of the relay system backhaul link control channel that provides of the embodiment of the present invention two;
Fig. 7 is the REG map image schematic diagram corresponding with schematic flow sheet shown in Figure 6;
Fig. 8 is another REG map image schematic diagram corresponding with schematic flow sheet shown in Figure 6;
Fig. 9 is another REG map image schematic diagram corresponding with schematic flow sheet shown in Figure 6;
Figure 10 is the schematic flow sheet of the REG method for numbering serial of the relay system backhaul link control channel that provides of the embodiment of the present invention three;
Figure 11 is the schematic flow sheet of the REG method for numbering serial of the relay system backhaul link control channel that provides of the embodiment of the present invention four;
Figure 12 is the REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 11;
Figure 13 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 11;
Figure 14 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 11;
Figure 15 is the schematic flow sheet of the REG method for numbering serial of the relay system backhaul link control channel that provides of the embodiment of the present invention five;
Figure 16 is the REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 15;
Figure 17 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 15;
Figure 18 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 15;
Figure 19 is the schematic flow sheet of the REG method for numbering serial of the relay system backhaul link control channel that provides of the embodiment of the present invention five;
Figure 20 is the REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 19;
Figure 21 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 19;
Figure 22 is another REG numbering pattern schematic diagram corresponding with schematic flow sheet shown in Figure 19;
Figure 23 is the structural representation of the REG mapped device of the relay system backhaul link control channel that provides of the embodiment of the present invention seven;
Figure 24 is the structural representation of the REG numbering equipment of the relay system backhaul link control channel that provides of the embodiment of the present invention eight.
Embodiment
Below in conjunction with the accompanying drawing in embodiments of the invention, the technical scheme in embodiments of the invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of embodiments of the invention protection.
The embodiment of the present invention one provides a kind of REG mapping method of relay system backhaul link control channel, as shown in Figure 5, comprising:
Described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side can build REG with RE by line search in the zone that two of the DMRS place continuous R-PDCCH row form.
Described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side is in the zone that the R-PDCCH at DMRS place row form, and the available RE of search builds REG in each R-PDCCH row; The RE that same REG comprises is in identical or different R-PDCCH row.
Described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side is in the zone that two of the DMRS place continuous R-PDCCH row form, and available RE builds REG by the row search;
When remaining available RE in previous R-PDCCH row can not build a complete REG, described network side available RE of search in rear R-PDCCH row built REG;
Described network side is pressed the remaining available RE of line search and is built REG in described two continuous R-PDCCH row.
The embodiment of the present invention two provides a kind of REG mapping method of relay system backhaul link control channel, as shown in Figure 6, comprising:
In the embodiment of the present invention, consider the DM RS of 4 ports, as shown in Figure 7, network side is reserved 6 RE and is used for storage or propagates the DMRS pilot signal.In REG map image shown in Figure 7, R0, R1, R2 and R3 represent respectively common pilot signal, and the RE that this common pilot signal occupies can not be used for propagating R-PDCCH.In REG map image shown in Figure 7, also comprise the RE that is occupied by DM RS, these RE can not be used for transmission R-PDCCH, therefore, and only remaining 6 RE that can be used for transmitting R-PDCCH in the R-PDCCH row at DMRS place.
In the embodiment of the present invention, be thought of as the RE that DMRS reserves, the new REG mapping relations of network side configuration are:
In the zone that forms for two of DM RS place continuous R-PDCCH row, adopt the method by line search to build REG.Refer in the zone that two continuous R-PDCCH row form by line search, preferentially the available RE of search builds REG in row corresponding to same subcarrier, after the lastrow search finishes, if do not satisfy the condition that builds REG, for example search inadequate 4 of the RE that element arrives, continue the available RE of search at next line, and the RE that the RE that searches and lastrow search is built REG jointly.
Concrete, for non-DMRS zone, build REG according to the REG mapping ruler of existing LTE system by the available RE of row search; For DMRS zone, can with RE build REG in the DMRS zone by line search according to the REG mapping ruler of above-mentioned configuration, the REG of its structure as shown in Figure 7, all RE all are mapped to REG.
In the embodiment of the present invention, the REG mapping relations of network side configuration can also for:
In the zone that forms for two of DM RS place continuous row, still adopt the method by the row search to build REG, still, the RE in same REG is not limited to same row, will have like this a REG initial across position, first row end and secondary series; Perhaps
In the zone that two of the DMRS place continuous R-PDCCH row form, available RE builds REG by the row search; When remaining available RE in previous R-PDCCH row can not build a complete REG, the available RE of search built REG in rear R-PDCCH row; Press the remaining available RE of line search and build REG in two continuous R-PDCCH row at DMRS place.
Network side all is mapped to REG according to above-mentioned the first REG mapping relations with the Free Region of R-PDCCH, and its REG mapping pattern as shown in Figure 8.Network side all is mapped to REG according to above-mentioned the second REG mapping relations with the Free Region of R-PDCCH, and its REG mapping pattern as shown in Figure 9.
No matter according to above-mentioned which kind of REG mapping relations, network side can all be mapped to all RE in the zone at DMRS place in REG.
The embodiment of the present invention three provides a kind of REG method for numbering serial of relay system backhaul link control channel, as shown in figure 10, comprising:
Described network side carries out REG according to the REG coding rule of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
After described network side uses first time domain, the frequency domain principle is carried out respectively the REG numbering to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row;
The REG numbering of described network side DMRS place control channel R-PDCCH row is set to after the REG of described non-DMRS place R-PDCCH row numbering.
Described network side carries out REG according to the REG coding rule of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
Described network side is made described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row as a whole, uses after first time domain the frequency domain principle to carry out REG and numbers.
Described network side carries out REG according to the REG coding rule of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
Described network side is made described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row as a whole, uses after first frequency domain the time domain principle to carry out REG and numbers.
The embodiment of the present invention four provides a kind of REG method for numbering serial of relay system backhaul link control channel, as shown in figure 11, comprising:
Concrete, in the embodiment of the present invention four, the REG of configuration numbering is closed and is:
Other zones for DM RS zone and non-DM RS zone are numbered respectively, and frequency domain principle after the first time domain of LTE system is continued to use in non-DM RS zone and DM RS zone, and the integral body in DM RS zone number than the integral body of non-DM RS number lean on after.
In the embodiment of the present invention four,, and state in conjunction with the REG mapping scheme in above-described embodiment as 4 as example take the OFDM symbol original position of R-PDCCH.
For above-mentioned the first REG mapping relations, the REG that obtains numbering pattern as shown in figure 12; For above-mentioned the second REG mapping relations, the REG that obtains numbering pattern as shown in figure 13; For above-mentioned the third REG mapping relations, the REG that obtains numbering pattern as shown in figure 14.
When adopting this REG numbering plan, can directly continue to use the coding rule of R8 in non-DMRS zone, and the OFDM symbolic number that takies as R-PDCCH does not affect the coding rule in DMRS zone when changing.
The embodiment of the present invention five provides a kind of REG method for numbering serial of relay system backhaul link control channel, as shown in figure 15, comprising:
In the embodiment of the present invention five, the REG of configuration numbering is closed and is:
DMRS zone and non-DMRS extra-regional other zones are looked as a whole, and adopted that the method for numbering serial of frequency domain is numbered after first time domain.
In the embodiment of the present invention five,, and state in conjunction with the REG mapping scheme in above-described embodiment as 4 as example take the OFDM symbol original position of R-PDCCH.
For above-mentioned the first REG mapping relations, the REG that obtains numbering pattern as shown in figure 16; For above-mentioned the second REG mapping relations, the REG that obtains numbering pattern as shown in figure 17; For above-mentioned the third REG mapping relations, the REG that obtains numbering pattern as shown in figure 18.
The embodiment of the present invention six provides a kind of REG method for numbering serial of relay system backhaul link control channel, as shown in figure 19, comprising:
Step 1901, the REG numbering relation of configuration backhaul link control channel.
In the embodiment of the present invention six, the REG of configuration numbering is closed and is:
DMRS zone and non-DMRS extra-regional other zones are looked as a whole, and adopted that the method for numbering serial of time domain is numbered after first frequency domain.
Step 1902, network side is numbered backhaul link control channel according to the REG numbering relation of configuration.
In the embodiment of the present invention six,, and state in conjunction with the REG mapping scheme in above-described embodiment as 4 as example take the OFDM symbol original position of R-PDCCH.
For above-mentioned the first REG mapping relations, the REG that obtains numbering pattern as shown in figure 20; For above-mentioned the second REG mapping relations, the REG that obtains numbering pattern as shown in figure 21; For above-mentioned the third REG mapping relations, the REG that obtains numbering pattern as shown in figure 22.
By the method that adopts the embodiment of the present invention to provide, network side is reserved pilot signal DMRS in the control channel R-PDCCH that sends to via node, and according to the REG mapping relations of configuration, the Free Region of R-PDCCH all is mapped to REG, improve the service efficiency of R-PDCCH.
The embodiment of the present invention seven provides a kind of REG mapped device of relay system backhaul link control channel, as shown in figure 23, comprising:
Described map unit 10 also is used for:
In the zone that two of the DMRS place continuous R-PDCCH row form, can build REG with RE by line search.
Described map unit 10 also is used for:
In the zone that the R-PDCCH at DMRS place row form, the available RE of search builds REG in each R-PDCCH row; The RE that same REG comprises is in identical or different R-PDCCH row.
Described map unit 10 also is used for:
In the zone that two of the DMRS place continuous R-PDCCH row form, available RE builds REG by the row search;
When remaining available RE in previous R-PDCCH row can not build a complete REG, the available RE of search built REG in rear R-PDCCH row;
Press the remaining available RE of line search and build REG in described two continuous R-PDCCH row.
The embodiment of the present invention eight provides a kind of REG numbering equipment of relay system backhaul link control channel, as shown in figure 24, comprising:
R-PDCCH row acquiring unit 30 is used for obtaining pilot signal DMRS place R-PDCCH row and non-DMRS place R-PDCCH row;
Described numbered cell 40 also is used for:
After using first time domain, the frequency domain principle is carried out respectively the REG numbering to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row;
The REG numbering of DMRS place control channel R-PDCCH row is set to after the REG of described non-DMRS place R-PDCCH row numbering.
Described numbered cell 40 also is used for:
Described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row are done as a whole, used after first time domain the frequency domain principle to carry out REG and number.
Described numbered cell 40 also is used for:
Described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row are done as a whole, used after first frequency domain the time domain principle to carry out REG and number.
By the equipment that adopts the embodiment of the present invention to provide, network side is reserved pilot signal DMRS in the control channel R-PDCCH that sends to via node, and according to the REG mapping relations of configuration, the Free Region of R-PDCCH all is mapped to REG, improve the service efficiency of R-PDCCH.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (16)
1. the REG mapping method of a relay system backhaul link control channel, is characterized in that, comprising:
Network side is according to the Resource Block RE that reserves for pilot signal DMRS, and resource allocation piece group REG mapping relations allow the available RE of different R-PDCCH to be mapped to same REG;
Described network side is by the described RE transmission of control signals that is mapped to REG.
2. the method for claim 1, is characterized in that, described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side can build REG with RE by line search in the zone that two of the DMRS place continuous R-PDCCH row form.
3. the method for claim 1, is characterized in that, described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side is in the zone that the R-PDCCH at DMRS place row form, and the available RE of search builds REG in each R-PDCCH row; The RE that same REG comprises is in identical or different R-PDCCH row.
4. the method for claim 1, is characterized in that, described network side is according to the Resource Block RE that reserves for pilot signal DMRS, and the available RE of the different R-PDCCH of resource allocation piece group REG mapping relations permission is mapped to same REG and comprises:
Described network side is in the zone that two of the DMRS place continuous R-PDCCH row form, and available RE builds REG by the row search;
When remaining available RE in previous R-PDCCH row can not build a complete REG, described network side available RE of search in rear R-PDCCH row built REG;
Described network side is pressed the remaining available RE of line search and is built REG in described two continuous R-PDCCH row.
5. a REG method for numbering serial that is applied to the described REG mapping method of the claims, is characterized in that, comprising:
Network side obtains pilot signal DMRS place R-PDCCH row and non-DMRS place R-PDCCH row;
Described network side carries out the REG numbering according to the REG numbering relation of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row.
6. method as claimed in claim 5, is characterized in that, described network side carries out REG according to the REG numbering relation of configuration to described DMRS place R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
After described network side uses first time domain, the frequency domain principle is carried out respectively the REG numbering to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row;
The REG numbering of described network side DMRS place control channel R-PDCCH row is set to after the REG of described non-DMRS place R-PDCCH row numbering.
7. method as claimed in claim 5, is characterized in that, described network side carries out REG according to the REG numbering relation of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
Described network side is made described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row as a whole, uses after first time domain the frequency domain principle to carry out REG and numbers.
8. method as claimed in claim 5, is characterized in that, described network side carries out REG according to the REG numbering relation of configuration to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row and numbers and comprise:
Described network side is made described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row as a whole, uses after first frequency domain the time domain principle to carry out REG and numbers.
9. the REG mapped device of a relay system backhaul link control channel, is characterized in that, comprising:
Map unit is used for according to the Resource Block RE for pilot signal DMRS reservation, configures new Resource Block group REG mapping relations and allows the available RE of different R-PDCCH to be mapped to same REG;
Transmission unit is for be mapped to the RE transmission of control signals of REG by described map unit.
10. equipment as claimed in claim 9, is characterized in that, described map unit also is used for:
In the zone that two of the DMRS place continuous R-PDCCH row form, can build REG with RE by line search.
11. equipment as claimed in claim 9 is characterized in that, described map unit also is used for:
In the zone that the R-PDCCH at DMRS place row form, the available RE of search builds REG in each R-PDCCH row; The RE that same REG comprises is in identical or different R-PDCCH row.
12. equipment as claimed in claim 9 is characterized in that, described map unit also is used for:
In the zone that two of the DMRS place continuous R-PDCCH row form, available RE builds REG by the row search;
When remaining available RE in previous R-PDCCH row can not build a complete REG, the available RE of search built REG in rear R-PDCCH row;
Press the remaining available RE of line search and build REG in described two continuous R-PDCCH row.
13. a REG numbering equipment that is applied to the described REG mapped device of the claims is characterized in that, comprising:
R-PDCCH row acquiring unit is used for obtaining pilot signal DMRS place R-PDCCH row and non-DMRS place R-PDCCH row;
Numbered cell is used for according to the REG numbering relation of configuration, described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row being carried out the REG numbering.
14. equipment as claimed in claim 13 is characterized in that, described numbered cell also is used for:
After using first time domain, the frequency domain principle is carried out respectively the REG numbering to described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row;
The REG numbering of DMRS place control channel R-PDCCH row is set to after the REG of described non-DMRS place R-PDCCH row numbering.
15. equipment as claimed in claim 13 is characterized in that, described numbered cell also is used for:
Described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row are done as a whole, used after first time domain the frequency domain principle to carry out REG and number.
16. equipment as claimed in claim 13 is characterized in that, described numbered cell also is used for:
Described DMRS place control channel R-PDCCH row and non-DMRS place R-PDCCH row are done as a whole, used after first frequency domain the time domain principle to carry out REG and number.
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| CN108039902B (en) * | 2011-11-16 | 2021-06-22 | 三星电子株式会社 | Method and apparatus for transmitting control information in wireless communication system |
| CN103188805A (en) * | 2011-12-31 | 2013-07-03 | 华为技术有限公司 | Method and equipment for distributing pilot frequency resources |
| CN103248586A (en) * | 2012-02-13 | 2013-08-14 | 华为技术有限公司 | Methods for transmitting and detecting control signaling, network equipment and user equipment |
| CN103748849B (en) * | 2012-07-31 | 2017-06-06 | 华为技术有限公司 | Control channel transmission method and base station, terminal |
| US20160270038A1 (en) * | 2015-03-11 | 2016-09-15 | Samsung Electronics Co., Ltd | Transmissions of downlink control channels for low cost ues |
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| CN101523840A (en) * | 2006-10-10 | 2009-09-02 | 高通股份有限公司 | Uplink pilot multiplexing in SU-MIMO and SDMA for SC-FDMA systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101523840A (en) * | 2006-10-10 | 2009-09-02 | 高通股份有限公司 | Uplink pilot multiplexing in SU-MIMO and SDMA for SC-FDMA systems |
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