CN102083225A - Information informing and channel detecting method, system and device on return link - Google Patents
Information informing and channel detecting method, system and device on return link Download PDFInfo
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- CN102083225A CN102083225A CN2010101946968A CN201010194696A CN102083225A CN 102083225 A CN102083225 A CN 102083225A CN 2010101946968 A CN2010101946968 A CN 2010101946968A CN 201010194696 A CN201010194696 A CN 201010194696A CN 102083225 A CN102083225 A CN 102083225A
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Abstract
The embodiment of the invention discloses an information informing and channel detecting method, system and device on a return link, relating to the field of radio communication and being used for solving the problem on how to detect a relay physical downlink control channel (R-PDCCH) on the return link by a relay node (RN) in an LTE-A (Long Term Evolution-Advanced) system. In the invention, a base station sends information of a resource mapping manner adopted by the R-PDCCH for resource mapping to the RN, and the RN detects the R-PDCCH according to the information of the resource mapping manner, thus the problem on how to detect the R-PDCCH by the RN in the LTE-A system is solved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to information notice and channel detection method, system and equipment on a kind of back haul link.
Background technology
In long-term evolution upgrading (LTE-A) system,, introduced via node equipment (RN Node in order to improve throughput of system and to increase network coverage, RN), as shown in Figure 1, base station (eNB) links core net (CN) by wireline interface, and RN links eNB by wave point; Terminal (UE) is linked RN or eNB by wave point.
Link between RN and the base station is called backhaul (backhaul) link, comprise that the base station arrives the descending backhaul link of RN and the RN up backhaul link to the base station, link between RN and the UE is called access link, comprises the up access link of RN to the descending access link of UE and UE to RN.
In back haul link, there are two kinds of channels, i.e. Physical Downlink Shared Channel (R-PDSCH) on Physical Downlink Control Channel on the back haul link (R-PDCCH) and the back haul link.The control signaling that the running time-frequency resource that eNB uses R-PDCCH to take is correlated with to the RN transmission, RN then carries out blind Detecting to obtain the control corresponding signaling in the running time-frequency resource scope that R-PDCCH takies.The control signaling of transmitting on R-PDCCH comprises scheduling downlink resource signaling (DL grant) and ascending resource scheduling signaling (UL grant).
For back haul link, can utilize public guide frequency (CRS) to carry out the channel signal demodulation, also can use special demodulating pilot tone (DMRS) to carry out the channel signal demodulation, specifically use CRS demodulation or DMRS demodulation, need eNB to pass through the semi-static configuration of high-level signaling and give RN.Under the situation of using the CRS demodulation, eNB need distribute running time-frequency resource for the R-PDCCH of each RN, promptly carry out the resource mapping to R-PDCCH, and there are two kinds of interleaving mode and non-interleaving modes in the mode of resource mapping.
ENB after the R-PDCCH of RN distributes running time-frequency resource, utilizes the running time-frequency resource that distributes to send control signaling to this RN.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
At eNB R-PDCCH being carried out resource mapping method that resource when mapping adopt has when multiple, and how RN detects R-PDCCH, does not also have concrete implementation at present.
Summary of the invention
The embodiment of the invention provides information notice and channel detection method, system and the equipment on a kind of back haul link, is used for solving the problem how RN of LTE-A system detects R-PDCCH.
Information notice method in a kind of long-term evolution upgrading system on the back haul link, this method comprises:
The base station sends to RN with the information of resource mapping method;
Described resource mapping method is the resource mapping method that is adopted when the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping.
Channel detection method in a kind of long-term evolution upgrading system on the back haul link, this method comprises:
Via node RN receives the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to the Physical Downlink Control Channel R-PDCCH on the back haul link information;
RN detects R-PDCCH according to the information of described resource mapping method.
A kind of base station, this base station comprises:
Determining unit is used for determining the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping method that the resource mapping is adopted;
Notification unit, the information that is used for resource mapping method that will be definite sends to RN.
A kind of via node, this via node comprises:
Receiving element is used to receive the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to the Physical Downlink Control Channel R-PDCCH on the back haul link information;
Detecting unit is used for detecting R-PDCCH according to the information of described resource mapping method.
A kind of wireless communication system, this system comprises:
The base station is used for the information of resource mapping method is sent to via node, and described resource mapping method is the resource mapping method that is adopted when the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping;
Via node is used to receive the information of described resource mapping method, detects R-PDCCH according to the information of described resource mapping method.
In this programme, the base station will send to RN to the information that R-PDCCH carries out the resource mapping method that resource mapping adopted, and RN detects R-PDCCH according to the information of described resource mapping method, solve the problem how RN in the LTE-A system detects R-PDCCH.
Description of drawings
Fig. 1 is the structural representation of LTE-A system in the prior art;
The method flow schematic diagram that Fig. 2 provides for the embodiment of the invention;
Fig. 3 A is the REG mapping schematic diagram in the embodiment of the invention one;
Fig. 3 B is the REG numbering schematic diagram in the embodiment of the invention one;
Fig. 3 C is the control channel resource allocation schematic diagram in the embodiment of the invention one;
Fig. 3 D is the resource mapping schematic diagram in the embodiment of the invention two;
Fig. 3 E is the resource mapping schematic diagram in the embodiment of the invention three;
The system configuration schematic diagram that Fig. 4 provides for the embodiment of the invention;
The architecture of base station schematic diagram that Fig. 5 provides for the embodiment of the invention;
The RN structural representation that Fig. 6 provides for the embodiment of the invention.
Embodiment
In order to solve the problem how RN in the LTE-A system detects R-PDCCH, the embodiment of the invention provides information notice and the channel detection method on a kind of back haul link, in this method, the base station will send to RN to the information that R-PDCCH carries out the resource mapping method that resource mapping adopted, and RN adopts the blind check mode of this resource mapping method correspondence to detect R-PDCCH.
As shown in Figure 2, information notice and channel detection method on the back haul link that the embodiment of the invention provides specifically may further comprise the steps:
Step 20: the base station sends to RN with the information of resource mapping method, and this resource mapping method is the resource mapping method that is adopted when R-PDCCH is carried out the resource mapping;
Step 21:RN receives the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to R-PDCCH information;
Step 22:RN detects R-PDCCH according to the information of the resource mapping method that receives, concrete, can determine the blind check mode of described resource mapping method correspondence according to the corresponding relation of predefined resource mapping method and blind Detecting mode, detect R-PDCCH according to this blind check mode then.
In base station side:
When adopting interleaving mode that R-PDCCH is carried out the resource mapping in the base station, the base station sends to RN with the information of resource mapping method in the step 21, specifically be to use interleaving mode that the information that R-PDCCH carries out the resource mapping is sent to RN expression, for example, use 1 bit (bit) expression whether to use interleaving mode that R-PDCCH is carried out the resource mapping, if then bit 1 is sent to RN, otherwise, bit 0 is sent to RN.
When adopting non-interleaving mode that R-PDCCH is carried out the resource mapping in the base station, the base station sends to RN with the information of resource mapping method in the step 21, specifically is not use interleaving mode to the information that R-PDCCH carries out the resource mapping expression, sends to RN.
Interleaving mode is meant the resource mapping method of having used interleaved sequence that R-PDCCH is carried out the resource mapping, and interleaving mode can comprise following step:
Available resource units (RE) in the resource area that R-PDCCH is shared is divided into groups, every group of step that is called a REG, according to set rule with each REG carry out the physics numbering step, use interleaved sequence (for example interleaver matrix) that the physics numbering of each REG is renumberd the step that obtains logical number, the R-PDCCH of RN is mapped to the step on the CCE and each CCE is mapped to step on the REG.
After carrying out above-mentioned steps, the RE among each REG that each CCE comprised that will shine upon for the R-PDCCH of this RN has distributed to the R-PDCCH of this RN.
Non-interleaving mode is meant the resource mapping method of not used interleaved sequence that R-PDCCH is carried out the resource mapping, and non-interleaving mode can comprise following step:
In the shared resource area of R-PDCCH for this RN distribute PRB step, the REG in the PRB that distributes or RE are shone upon step to the R-PDCCH of RN in proper order according to setting.
After carrying out above-mentioned steps, will or be each RE of the R-PDCCH mapping of this RN, distribute to the R-PDCCH of this RN for the RE that each REG comprised of the R-PDCCH mapping of this RN.
Certainly, the base station is carried out the resource mapping method that resource mapping adopted to R-PDCCH and is not limited to interleaving mode and non-interleaving mode, it can also be any other resource mapping method that is used to the R-PDCCH Resources allocation, during enforcement, as long as information required when RN that will be corresponding with this resource mapping method carries out Channel Detection is pre-configured to RN, RN just can carry out the blind check corresponding with this resource mapping method according to configuration information, thereby obtains belonging to the control signaling of RN self.
After the base station sent to RN with the information of resource mapping method, the resource mapping can also be carried out to the R-PDCCH of RN according to interleaving mode in the base station, obtains the shared physics running time-frequency resource of this R-PDCCH; And utilize described physics running time-frequency resource to send control signaling to RN.For example use the physics running time-frequency resource of first time slot that is positioned at PRB to send UL grant, use the physics running time-frequency resource of second time slot that is positioned at PRB to send DL grant to RN to RN.
The interleaving mode that uses when the R-PDCCH of RN is carried out the resource mapping can be the interleaving mode based on resource unit group (REG) that defines in the consensus standard of 3G (Third Generation) Moblie standardization body (3GPP) Long Term Evolution (LTE) version 8 (R8).
After the base station sends to RN with the information of resource mapping method, the resource mapping can also be carried out to the R-PDCCH of RN according to non-interleaving mode in the base station, obtain the shared physics running time-frequency resource of this R-PDCCH, and utilize this physics running time-frequency resource to send control signaling to RN.For example use the physics running time-frequency resource of first time slot that is positioned at PRB to send UL grant, use the physics running time-frequency resource of second time slot that is positioned at PRB to send DL grant to RN to RN.
Above-mentioned base station is carried out the resource mapping according to non-interleaving mode to the R-PDCCH of RN, and its specific implementation can adopt following dual mode:
First kind:
At first, one or more Physical Resource Block (PRB) are distributed for this RN according to the channel condition of RN in the base station in the shared whole resource area of R-PDCCH;
Then, each PRB for distributing is divided into a plurality of resource unit group (REG) with the available resource units in this PRB (RE);
At last, the REG in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
Second kind:
At first, one or more PRBs are distributed for this RN according to the channel condition of RN in the base station in the shared whole resource area of R-PDCCH;
Then, the RE in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
In the step 21, high-level signaling can be passed through in the base station, and the information of the resource mapping method determined is sent to RN.
The base station can be when using public guide frequency (CRS) demodulation R-PDCCH, and just the information with definite resource mapping method sends to RN.
In the RN side:
The information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in base station that RN receives is, when expression used interleaving mode that R-PDCCH is carried out information that resource shines upon, RN detected R-PDCCH according to definite blind check mode and comprises in the step 22:
RN carries out deinterleaving according to the needed deinterleaving information of the pre-configured execution deinterleaving corresponding with described interleaving mode, carries out blind check according to the deinterleaving result in the resource area of R-PDCCH, obtains belonging to the control signaling of RN self.The deinterleaving information here comprises employed coding rule when the physics numbering is carried out to REG in the base station, employed interleaved sequence when carrying out logical number.
In described interleaving mode is the consensus standard of R8 of 3GPP, define based on the interleaving mode of REG the time, described deinterleaving information is the deinterleaving information that defines in the consensus standard of 3GPP LTE version 8.
The information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in base station that RN receives is, when representing not use interleaving mode that R-PDCCH is carried out information that resource shines upon, RN detects R-PDCCH according to described blind check mode and comprises in the step 22:
RN is in the resource area of R-PDCCH, and the order preferential according to frequency domain is that unit carries out blind check with REG or RE.
The present invention will be described below in conjunction with specific embodiment:
In this patent, under the situation of using CRS demodulation R-PDCCH, eNB notifies RN by high-level signaling, and whether it has used interleaving mode that R-PDCCH is carried out the resource mapping.If eNB notice RN has used interleaving mode, then RN detects R-PDCCH according to the blind check mode of interleaving mode correspondence; Otherwise RN detects R-PDCCH according to the blind check mode of non-interleaving mode correspondence.
Embodiment one:
In the present embodiment, use interleaving mode that R-PDCCH is carried out the resource mapping at eNB, this interleaving mode is based on the interleaving mode of REG among the R8 of 3GPP.In this mode, RE is divided into groups with the form of REG, these all are resource locations physically, will be with REG to shine upon above the REG of R-PDCCH in the R-PDCCH zone after unit interweaves, to finish resource allocation.
Accordingly, the RN blind check mode corresponding with this interleaving mode of carrying out also is the blind check mode that defines among the R8 of 3GPP.Specific as follows:
1: the available resource units (RE) at first that R-PDCCH is the shared resource area is divided into groups, and per 4 RE are divided into one group, and these 4 RE are 4 continuous after removing frequency pilot sign on frequency domain RE, and every group is called a REG;
Specifically as shown in Figure 3A, wherein provided above 4 different in R-PDCCH OFDM symbols the mapping situation of its REG.Each REG comprises 4 RE, and these 4 RE and are 4 the continuous RE that remove behind the frequency pilot sign on an OFDM symbol.
2: preferential according to time domain, the frequency domain original position is minimum is numbered minimum rule, and each REG is numbered, and this numbering is called the physics numbering;
Fig. 3 B has provided the numbering situation of the REG on 3 OFDM symbols.
Certainly, coding rule is not limited to the coding rule among the R8, also can be any other rule, for example is numbered according to the preferential rule of frequency domain, only needs to guarantee that each REG of numbering back gets final product on time-frequency domain continuously according to number order;
3: use interleaved sequence (for example interleaver matrix) that the physics numbering of each REG is renumberd, each REG is discontinuous on time-frequency domain according to new number order, and the numbering that this is new is called logical number;
4: the R-PDCCH with RN is mapped on one or more CCE according to the channel condition of RN;
5:, this CCE is mapped on the continuous REG of 9 logical numbers the REG difference of each CCE mapping for each CCE.Finally realized the R-PDCCH of RN is mapped on a plurality of REG, soon the RE among these a plurality of REG has distributed to the R-PDCCH of this RN; Shown in Fig. 3 C;
6:eNB will represent to use interleaving mode that the information that R-PDCCH carries out the resource mapping is sent to RN, and the RE among the REG that CCE comprised of use RN mapping, send control signaling to RN;
Concrete, use the RE of first time slot that is positioned at PRB to send UL grant to RN, use the RE of second time slot that is positioned at PRB to send DL grant to RN;
7:RN receives after the expression of sending the base station uses interleaving mode that R-PDCCH is carried out the information of resource mapping, the corresponding needed deinterleaving information of deinterleaving of interleaving mode according to pre-configured execution and base station use, carry out deinterleaving, in the resource area of R-PDCCH, carry out blind check according to the deinterleaving result then, obtain belonging to the control signaling of RN self.
Certainly, concrete interleaving mode is not defined as the interleaving mode of R8 yet, can be other various interleaving modes yet.When adopting other interleaving modes, as long as with the base station to REG carry out physics employed coding rule of when numbering, employed interleaved sequence disposes to RN when carrying out logical number, RN just can with the configuration information as deinterleaving information, carry out deinterleaving according to the mode identical with R8.
Under the situation of using the R8 interleaving mode, different with R8 is, the bandwidth of the R-PDCCH of RN is not fixed, but the shared PRB of this concrete R-PDCCH is also by the semi-static configuration of high-level signaling.Therefore, eNB need be according to the number of the shared PRB of different R-PDCCH when sending R-PDCCH, carries out the resource mapping according to the interleaving mode of R8.Equally, in the RN side, also need in the shared PRB of R-PDCCH, carry out deinterleaving and blind check according to the interleaving mode of R8.Consider that DL grant and UL grant separately interweave, therefore need detect respectively.
Embodiment two:
In the present embodiment, use non-interleaving mode R-PDCCH to be carried out the resource mapping based on REG at eNB.In the OFDM symbol in a PRB, carry out the resource mapping of R-PDCCH, after the whole mappings of whole REG of this OFDM symbol finish, in second OFDM symbol, shine upon again according to the preferential order of frequency domain.Concrete mapping also is that DL grant and UL grant shine upon respectively.Specific as follows:
1:, in the shared resource area of R-PDCCH, distribute one or more PRB for this RN according to the channel condition of RN;
2: be the PRB that this RN distributes for each, carry out following operation:
Available RE in this PRB is divided into groups, and per 4 RE are divided into one group, and these 4 RE are 4 continuous after removing frequency pilot sign on frequency domain RE, and every group is called a REG;
The order preferential according to frequency domain is numbered each REG in this PRB, after promptly the whole REG numbering of first OFDM symbol being finished, again the REG in second OFDM symbol is numbered, by that analogy, whole REG numberings in this PRB are finished, each REG of numbering back is continuous on time-frequency domain according to number order, this numbering is called the physics numbering, shown in Fig. 3 D.
Certainly, coding rule is not limited to the preferential rule of above-mentioned frequency domain, also can be any other rule, for example is numbered according to the preferential rule of time domain, only needs to guarantee that each REG of numbering back gets final product on time-frequency domain continuously according to number order;
3: according to the order of the physics of REG numbering, the R-PDCCH of this RN is mapped on the corresponding REG, is about to the R-PDCCH that RE that this REG will comprise has distributed to this RN; The signaling of can satisfy R-PDCCH for the number of the REG of this RN up to mapping sends demand;
4:eNB will represent to use non-interleaving mode that the information that R-PDCCH carries out the resource mapping is sent to RN, and use the RE that REG comprised of this RN mapping, send control signaling to RN;
Concrete, use the RE of first time slot that is positioned at PRB to send UL grant to RN, use the RE of second time slot that is positioned at PRB to send DL grant to RN;
5:RN receives after the expression of sending the base station uses non-interleaving mode that R-PDCCH is carried out the information of resource mapping, in the resource area of R-PDCCH, be that unit carries out blind check with REG according to the preferential order of frequency domain, be the RN REG physics coding rule information preferential according to pre-configured frequency domain, order according to the physics of REG numbering, in the REG of correspondence, detect the control signaling that belongs to this RN, up to detecting the control signaling that belongs to this RN.
Embodiment three:
In the present embodiment, use non-interleaving mode R-PDCCH to be carried out the resource mapping based on RE at eNB.In the OFDM symbol in a PRB, carry out the resource mapping of R-PDCCH, after the whole mappings of whole RE of this OFDM symbol finish, in second OFDM symbol, shine upon again according to the preferential order of frequency domain.Concrete mapping also is that DL grant and UL grant shine upon respectively.Specific as follows:
1:, in the shared resource area of R-PDCCH, distribute one or more PRB for this RN according to the channel condition of RN;
2: be the PRB that this RN distributes for each, carry out following operation:
The order preferential according to frequency domain is numbered each RE in this PRB, after promptly the whole RE numbering of first OFDM symbol being finished, again the RE in second OFDM symbol is numbered, by that analogy, whole RE numberings in this PRB are finished, each RE of numbering back is continuous on time-frequency domain according to number order, this numbering is called the physics numbering, shown in Fig. 3 E.
Certainly, coding rule is not limited to the preferential rule of above-mentioned frequency domain, also can be any other rule, for example is numbered according to the preferential rule of time domain, only needs to guarantee that each RE of numbering back gets final product on time-frequency domain continuously according to number order;
3: according to the order of the physics of RE numbering, the R-PDCCH of this RN is mapped on the corresponding RE, is about to the R-PDCCH that this RE has distributed to this RN; The signaling of can satisfy R-PDCCH for the number of the RE of this RN up to mapping sends demand;
4:eNB will represent to use non-interleaving mode that the information that R-PDCCH carries out the resource mapping is sent to RN, and use the RE of this RN mapping, send control signaling to RN;
Concrete, use the RE of first time slot that is positioned at PRB to send UL grant to RN, use the RE of second time slot that is positioned at PRB to send DL grant to RN;
5:RN receives after the expression of sending the base station uses non-interleaving mode that R-PDCCH is carried out the information of resource mapping, in the resource area of R-PDCCH, be that unit carries out blind check with RE according to the preferential order of frequency domain, be the RN RE physics coding rule information preferential according to pre-configured frequency domain, order according to the physics of RE numbering, in the RE of correspondence, detect the control signaling that belongs to this RN, up to detecting the control signaling that belongs to this RN.
Certainly, non-interleaving mode is not limited to the dual mode among embodiment one and the embodiment two, it can also be any other resource mapping method that does not adopt interleaved sequence, during enforcement, as long as information required when RN is carried out Channel Detection is pre-configured to RN, RN just can carry out the blind check corresponding with this resource mapping method according to configuration information, thereby obtains belonging to the control signaling of RN self.
The demodulation pilot frequency type of the R-PDCCH of RN sees at present that by the eNB configuration if eNg has disposed use DMRS to RN, then RN just uses DMRS to carry out demodulation, and R-PDCCH does not interweave; Otherwise eNB is to RN configuration CRS demodulation.When using CRS to separate timing, can use interleaving mode that R-PDCCH is carried out the resource mapping, also can use non-interleaving mode that R-PDCCH is carried out the resource mapping.
Referring to Fig. 4, the embodiment of the invention also provides a kind of wireless communication system, and this system comprises:
Via node 41 is used to receive the information of described resource mapping method, detects R-PDCCH according to the information of described resource mapping method.
Referring to Fig. 5, the embodiment of the invention also provides a kind of base station, can be applied in the above-mentioned wireless communication system, and this base station comprises:
Determining unit 50 is used for determining the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping method that the resource mapping is adopted;
Described notification unit 51 is used for:
When the definite resource mapping method of described determining unit is interleaving mode, use interleaving mode to the information that R-PDCCH carries out the resource mapping expression, send to RN.
Described notification unit 51 is used for:
When the definite resource mapping method of described determining unit is non-interleaving mode, do not use interleaving mode to the information that R-PDCCH carries out the resource mapping expression, send to RN.
This base station also comprises:
The first signaling transmitting element 53 is used to utilize described physics running time-frequency resource to send control signaling to RN.
Described interleaving mode is: the interleaving mode based on resource unit group REG that defines in the consensus standard of 3GPP LTE version 8.
This base station also comprises:
The second signaling transmitting element 55 is used to utilize described physics running time-frequency resource to send control signaling to RN.
Described second map unit 54 is used for:
According to the channel condition of RN, in the shared whole resource area of R-PDCCH, distribute one or more Physical Resource Block PRB for this RN;
Each PRB for distributing is divided into a plurality of resource unit group REG with the available resource units RE in this PRB;
REG in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
Described second map unit 54 is used for:
According to the channel condition of RN, in the shared whole resource area of R-PDCCH, distribute one or more Physical Resource Block PRB for this RN;
RE in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
Described notification unit 51 is used for:
By high-level signaling, the information of the resource mapping method that described determining unit is definite sends to RN.
Described notification unit 51 is used for:
When using public guide frequency CRS demodulation R-PDCCH, the information of the resource mapping method that described determining unit is definite sends to RN.
Referring to Fig. 6, the embodiment of the invention also provides a kind of via node, can be applied in the above-mentioned wireless communication system, and this via node comprises:
Receiving element 60 is used to receive the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to the Physical Downlink Control Channel R-PDCCH on the back haul link information;
Detecting unit 61 is used for detecting R-PDCCH according to the information of described resource mapping method.
Described detecting unit 61 is used for:
The information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression uses interleaving mode that R-PDCCH is carried out the information of resource mapping, according to the needed deinterleaving information of the pre-configured execution deinterleaving corresponding with described interleaving mode, carry out deinterleaving, in the resource area of R-PDCCH, carry out blind check according to the deinterleaving result, obtain belonging to the control signaling of RN self.
In described interleaving mode is the consensus standard of 3GPP LTE version 8, define based on the interleaving mode of resource unit group REG the time, described deinterleaving information is the deinterleaving information that defines in the consensus standard of 3GPP LTE version 8.
Described detecting unit 61 is used for: the information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression does not use interleaving mode that R-PDCCH is carried out the information of resource mapping, in the resource area of R-PDCCH, be that unit carries out blind check with REG or RE according to the preferential order of frequency domain.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, the base station will send to RN to the information that R-PDCCH carries out the resource mapping method that resource mapping adopted, RN detects R-PDCCH according to the information of described resource mapping method, has solved the problem how RN in the LTE-A system detects R-PDCCH.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (24)
1. the information notice method on the back haul link in the long-term evolution upgrading system is characterized in that this method comprises:
The base station sends to via node RN with the information of resource mapping method;
Described resource mapping method is the resource mapping method that is adopted when the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping.
2. the method for claim 1 is characterized in that,
When adopting interleaving mode that R-PDCCH is carried out the resource mapping, described base station sends to RN with the information of resource mapping method and comprises: the base station will represent to use interleaving mode that R-PDCCH is carried out the information that resource is shone upon, and send to RN; Perhaps,
When adopting non-interleaving mode that R-PDCCH is carried out the resource mapping, described base station sends to RN with the information of resource mapping method and comprises: the base station will represent not use interleaving mode that R-PDCCH is carried out the information that resource is shone upon, and send to RN.
3. method as claimed in claim 2 is characterized in that, after the base station sent to RN with the information of resource mapping method, this method further comprised:
The base station is carried out the resource mapping according to described interleaving mode to the R-PDCCH of RN, obtains the shared physics running time-frequency resource of this R-PDCCH;
The base station utilizes described physics running time-frequency resource to send control signaling to RN.
4. as claim 2 or 3 described methods, it is characterized in that described interleaving mode is: the interleaving mode that defines in the consensus standard of the 3GPP of 3G (Third Generation) Moblie standardization body Long Term Evolution LTE version 8 based on resource unit group REG.
5. method as claimed in claim 2 is characterized in that, after the base station sent to RN with the information of resource mapping method, this method further comprised:
The base station is carried out the resource mapping according to described non-interleaving mode to the R-PDCCH of RN, obtains the shared physics running time-frequency resource of this R-PDCCH;
The base station utilizes described physics running time-frequency resource to send control signaling to RN.
6. method as claimed in claim 5 is characterized in that, described base station is according to described non-interleaving mode, the R-PDCCH of RN is carried out the resource mapping comprise:
One or more Physical Resource Block PRBs are distributed for this RN according to the channel condition of RN in the base station in the shared whole resource area of R-PDCCH;
Each PRB for distributing is divided into a plurality of resource unit group REG with the available resource units RE in this PRB;
REG in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
7. method as claimed in claim 5 is characterized in that, described base station is according to described non-interleaving mode, the R-PDCCH of RN is carried out the resource mapping comprise:
One or more PRBs are distributed for this RN according to the channel condition of RN in the base station in the shared whole resource area of R-PDCCH;
RE in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
8. as arbitrary described method among claim 1-3, the 5-7, it is characterized in that the base station is by high-level signaling, the information of described resource mapping method is sent to RN.
9. as arbitrary described method among claim 1-3, the 5-7, it is characterized in that described base station sends to RN with the information of resource mapping method and comprises:
When using public guide frequency CRS demodulation R-PDCCH, the base station sends to RN with the information of resource mapping method.
10. the channel detection method on the back haul link in the long-term evolution upgrading system is characterized in that this method comprises:
Via node RN receives the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to the Physical Downlink Control Channel R-PDCCH on the back haul link information;
RN detects R-PDCCH according to the information of described resource mapping method.
11. method as claimed in claim 10, it is characterized in that, the information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression used interleaving mode that R-PDCCH is carried out the information of resource mapping, described RN detected R-PDCCH according to described blind check mode and comprises:
RN carries out deinterleaving according to the needed deinterleaving information of the pre-configured execution deinterleaving corresponding with described interleaving mode, carries out blind check according to the deinterleaving result in the resource area of R-PDCCH, obtains belonging to the control signaling of RN self.
12. method as claimed in claim 11, it is characterized in that, in described interleaving mode is the consensus standard of the 3GPP of 3G (Third Generation) Moblie standardization body Long Term Evolution LTE version 8, define based on the interleaving mode of resource unit group REG the time, described deinterleaving information is the deinterleaving information that defines in the consensus standard of 3GPP LTE version 8.
13. method as claimed in claim 10, it is characterized in that, the information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression did not use interleaving mode that R-PDCCH is carried out the information of resource mapping, described RN detected R-PDCCH according to described blind check mode and comprises:
RN according to the preferential order of frequency domain, is that unit carries out blind check with resource unit group REG or Resource Unit RE in the resource area of R-PDCCH.
14. a base station is characterized in that, this base station comprises:
Determining unit is used for determining the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping method that the resource mapping is adopted;
Notification unit, the information that is used for resource mapping method that will be definite sends to RN.
15. base station as claimed in claim 14 is characterized in that, described notification unit is used for:
When the definite resource mapping method of described determining unit is interleaving mode, use interleaving mode to the information that R-PDCCH carries out the resource mapping expression, send to RN; Perhaps,
When the definite resource mapping method of described determining unit is non-interleaving mode, do not use interleaving mode to the information that R-PDCCH carries out the resource mapping expression, send to RN.
16. base station as claimed in claim 15 is characterized in that, this base station also comprises:
First map unit is used for according to described interleaving mode the R-PDCCH of RN being carried out the resource mapping, obtains the shared physics running time-frequency resource of this R-PDCCH;
The first signaling transmitting element is used to utilize described physics running time-frequency resource to send control signaling to RN.
17. base station as claimed in claim 15 is characterized in that, this base station also comprises:
Second map unit is used for according to described non-interleaving mode the R-PDCCH of RN being carried out the resource mapping, obtains the shared physics running time-frequency resource of this R-PDCCH;
The second signaling transmitting element is used to utilize described physics running time-frequency resource to send control signaling to RN.
18. base station as claimed in claim 17 is characterized in that, described second map unit is used for:
According to the channel condition of RN, in the shared whole resource area of R-PDCCH, distribute one or more Physical Resource Block PRB for this RN;
Each PRB for distributing is divided into a plurality of resource unit group REG with the available resource units RE in this PRB;
REG in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
19. base station as claimed in claim 17 is characterized in that, described second map unit is used for:
According to the channel condition of RN, in the shared whole resource area of R-PDCCH, distribute one or more Physical Resource Block PRB for this RN;
RE in the PRB that distributes is shone upon R-PDCCH to RN according to the preferential order of frequency domain.
20. a via node is characterized in that, this via node comprises:
Receiving element is used to receive the resource mapping resource mapping method that adopts is carried out in this base station of sending the base station to the Physical Downlink Control Channel R-PDCCH on the back haul link information;
Detecting unit is used for detecting R-PDCCH according to the information of described resource mapping method.
21. via node as claimed in claim 20 is characterized in that, described detecting unit is used for:
The information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression uses interleaving mode that R-PDCCH is carried out the information of resource mapping, according to the needed deinterleaving information of the pre-configured execution deinterleaving corresponding with described interleaving mode, carry out deinterleaving, in the resource area of R-PDCCH, carry out blind check according to the deinterleaving result, obtain belonging to the control signaling of RN self.
22. via node as claimed in claim 21, it is characterized in that, in described interleaving mode is the consensus standard of the 3GPP of 3G (Third Generation) Moblie standardization body Long Term Evolution LTE version 8, define based on the interleaving mode of resource unit group REG the time, described deinterleaving information is the deinterleaving information that defines in the consensus standard of 3GPP LTE version 8.
23. via node as claimed in claim 20 is characterized in that, described detecting unit is used for:
The information of R-PDCCH being carried out the resource mapping resource mapping method that adopts in described base station is, when expression does not use interleaving mode that R-PDCCH is carried out the information of resource mapping, in the resource area of R-PDCCH,, be that unit carries out blind check with resource unit group REG or Resource Unit RE according to the preferential order of frequency domain.
24. a wireless communication system is characterized in that, this system comprises:
The base station is used for the information of resource mapping method is sent to via node, and described resource mapping method is the resource mapping method that is adopted when the Physical Downlink Control Channel R-PDCCH on the back haul link is carried out the resource mapping;
Via node is used to receive the information of described resource mapping method, detects R-PDCCH according to the information of described resource mapping method.
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| CN2010101946968A CN102083225A (en) | 2010-05-28 | 2010-05-28 | Information informing and channel detecting method, system and device on return link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019286A1 (en) * | 2012-08-01 | 2014-02-06 | 华为技术有限公司 | Control channel transmission method and device |
| CN109511172A (en) * | 2017-09-15 | 2019-03-22 | 三星电子株式会社 | Method and apparatus for transmitting control information in a wireless communication system |
| CN111147221A (en) * | 2014-12-12 | 2020-05-12 | 高通股份有限公司 | Techniques for managing transmissions in unlicensed radio frequency bands |
| CN112583552A (en) * | 2019-09-29 | 2021-03-30 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123789A (en) * | 2006-08-10 | 2008-02-13 | 华为技术有限公司 | Method and system for wireless resource control and allocation |
-
2010
- 2010-05-28 CN CN2010101946968A patent/CN102083225A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123789A (en) * | 2006-08-10 | 2008-02-13 | 华为技术有限公司 | Method and system for wireless resource control and allocation |
Non-Patent Citations (1)
| Title |
|---|
| RESEARCH IN MOTION, UK LIMITED: "《Relay Link Control Signalling 》", 《3GPP TSG RAN WG1 MEETING #56BIS R1-091151》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019286A1 (en) * | 2012-08-01 | 2014-02-06 | 华为技术有限公司 | Control channel transmission method and device |
| CN103782641A (en) * | 2012-08-01 | 2014-05-07 | 华为技术有限公司 | Control channel transmission method and device |
| RU2598533C1 (en) * | 2012-08-01 | 2016-09-27 | Хуавэй Текнолоджиз Ко., Лтд. | Device and method for transfer of control channel |
| US9674827B2 (en) | 2012-08-01 | 2017-06-06 | Huawei Technologies Co., Ltd. | Control channel transmission method and apparatus |
| US10785765B2 (en) | 2012-08-01 | 2020-09-22 | Huawei Technologies Co., Ltd. | Control channel transmission method and apparatus |
| US10271323B2 (en) | 2012-08-01 | 2019-04-23 | Huawei Technologies Co., Ltd. | Control channel transmission method and apparatus |
| CN111147221A (en) * | 2014-12-12 | 2020-05-12 | 高通股份有限公司 | Techniques for managing transmissions in unlicensed radio frequency bands |
| CN111147221B (en) * | 2014-12-12 | 2022-05-27 | 高通股份有限公司 | Method and apparatus for managing transmissions in unlicensed radio frequency spectrum bands |
| CN109511172A (en) * | 2017-09-15 | 2019-03-22 | 三星电子株式会社 | Method and apparatus for transmitting control information in a wireless communication system |
| US11764903B2 (en) | 2017-09-15 | 2023-09-19 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting control information in wireless communication system |
| CN109511172B (en) * | 2017-09-15 | 2023-10-24 | 三星电子株式会社 | Method and apparatus for transmitting control information in wireless communication system |
| CN112583552A (en) * | 2019-09-29 | 2021-03-30 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
| CN112583552B (en) * | 2019-09-29 | 2022-05-10 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
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