Downlink information transmission method and device of return link
A backhaul link and information transmission technology, which is applied in the field of downlink information transmission methods and equipment for backhaul links, can solve problems such as optimal design schemes for multiplexing of control areas and data areas on the backhaul link, and achieve the effect of ensuring compatibility
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[0101] Example one
[0102] Picture 10 A schematic diagram of the FDM multiplexing design for the control and data areas of the backhaul link. As shown in the figure, if the R-PDCCH and R-PHICH areas are divided by FDM, the number of OFDM symbols occupied by the area in the time domain is N=14-K , The number of PRBs occupied in the frequency domain is M (1≤M Picture 10 As shown, the CCE resource mapping method specified by R8 can be used, or TDM, FDM, CDM, and hybrid methods can be used for resource mapping.
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[0103] Example two
[0104] Picture 11 A schematic diagram of the TDM multiplexing design for the control and data areas of the backhaul link. As shown in the figure, if the R-PDCCH and R-PHICH areas are divided by TDM, the number of OFDM symbols occupied by the area in the time domain is N (1≤N Picture 11 As shown, mapping methods such as TDM, FDM, CDM, or hybrid methods can also be used.
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[0105] Example three
[0106] Picture 12 Schematic diagram of the FDM+TDM multiplexing design for the control and data areas of the backhaul link. As shown in the figure, if the R-PDCCH and R-PHICH areas are divided by TDM+FDM, the number of OFDM symbols occupied by the area in the time domain is N (1≤N Picture 11 . In the implementation, the resource mapping of multiple RNs and R10UEs can follow the CCE-based resource mapping method specified by R8, such as Picture 12 As shown, mapping methods such as TDM, FDM, CDM, or hybrid methods can also be used.
[0107] In the implementation, in the implementation of step 802, before the relay node RN serves its subordinate user equipment R-UE, the eNB may use radio resource control RRC broadcast messages or dedicated high-level signaling for RN and / or R10UE to transfer the first area The resource configuration message is notified to the RN and / or R10UE.
[0108] Wherein, the first area resource configuration information transmitted by th...
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