| 摘要 |
The embodiments of the present invention relate to a method for resource allocation of backhaul link control channel information and a device therefor. Upon application of technical solutions proposed by embodiments of the present invention and based on the condition of introducing the DMRS and CSI-RS, remaining REs which are not occupied by the CSI-RS and/or the DM-RS in an OFDM symbol is configured to constitute an REG, which is used to transmit or discard the backhaul link control channel information. Thus without much improvement on the existing LTE system specification, a resource allocation scheme of the backhaul link control channel information in corresponding physical resource blocks has been proposed, which accommodates for both simple specification design and full utilization on resources, and realizes flexible design and allocation in light of demands of the real system. |
| 主权项 |
1. A method for resource allocation of backhaul link control channel information, comprising the following steps:
configuring remaining Resource Elements (REs) which are not occupied by a Channel State Information Reference Signal (CSI-RS) and/or a Demodulation Reference Signal (DM-RS) in an Orthogonal Frequency Division Multiplexing (OFDM) symbol, by a sending terminal equipment for sending the backhaul link control channel information, as a Resource Element Group (REG), wherein the OFDM symbol contains REs for transmitting the CSI-RS and/or the DM-RS in a physical resource block; and discarding the remaining REs which do not constitute the REG in the OFDM symbol, by the sending terminal equipment for sending the backhaul link control channel information, and transmitting the backhaul link control channel information through the REG or discarding the REG, wherein the configuring remaining Resource Elements (REs) which are not occupied by a Channel State Information Reference Signal (CSI-RS) and/or a Demodulation Reference Signal (DM-RS) in an Orthogonal Frequency Division Multiplexing (OFDM) symbol, by a sending terminal equipment for sending the backhaul link control channel information, as a Resource Element Group (REG) comprises: configuring, by the sending terminal equipment, remaining REs in an OFDM symbol as the REG, wherein the OFDM symbol that is contained in a physical resource block only includes REs for transmitting the CSI-RS and neighboring OFDM symbols of the OFDM symbol do not include REs for transmitting the CSI-RS; and/or configuring, by the sending terminal equipment, remaining REs in two neighboring OFDM symbols as the REG, wherein the two neighboring OFDM symbols that are contained in the physical resource block include REs for transmitting the CSI-RS and/or the DM-RS, wherein the configuring, by the sending terminal equipment, remaining REs in an OFDM symbol as the REG, wherein the OFDM symbol that is contained in a physical resource block only includes REs for transmitting the CSI-RS and neighboring OFDM symbols of the OFDM symbol do not include REs for transmitting the CSI-RS comprises: configuring, by the sending terminal equipment, every four remaining REs as one REG, and determining other remaining REs as REs which do not constitute the REG, when one physical resource block only contains the REs for transmitting the CSI-RS and a number of remaining REs in one OFDM symbol within neighboring OFDM symbols which does not contain the REs for transmitting the CSI-RS is larger than four; or configuring, by the sending terminal equipment, entirely remaining REs in one OFDM symbol as REs which do not constitute the REG in the OFDM symbol, when one physical resource block only contains the REs for transmitting the CSI-RS and a number of REs in the OFDM symbol within neighboring OFDM symbols which does not contain the REs for transmitting the CSI-RS is smaller than four; and wherein the configuring, by the sending terminal equipment, remaining REs in two neighboring OFDM symbols as the REG, wherein the two neighboring OFDM symbols that are contained in the physical resource block include REs for transmitting the CSI-RS and/or the DM-RS comprises: configuring every four REs in OFDM symbols whose number of REs is larger than four, by the sending terminal equipment, as one REG, when a number of REs in one OFDM symbol is larger than four and a number of REs in the other OFDM symbol is smaller than four within two neighboring OFDM symbols which contain the REs for transmitting the CSI-RS and/or the DM-RS in one physical resource block; and configuring four remaining REs in the two neighboring OFDM symbols, by the sending terminal equipment, as the REG and determining other remaining REs in the two neighboring OFDM symbols as remaining REs which do not constitute the REG in the two neighboring OFDM symbols, when a sum of a number of the remaining REs in the OFDM symbol whose number is larger than four after constituting the REG and a number of the remaining REs in the other OFDM symbol whose number is smaller than four is larger than four; or configuring every four REs in two neighboring OFDM symbols, by the sending terminal equipment, as one REG respectively, when each of numbers of REs in two neighboring OFDM symbols which contain REs for transmitting the CSI-RS and/or the DM-RS in one physical resource block is larger than four; and configuring four remaining REs in the two neighboring OFDM symbols, by the sending terminal equipment, as the REG and determining other remaining REs as remaining REs which do not constitute the REG in the two neighboring OFDM symbols, when a sum of remaining REs after constituting the REG in the two neighboring OFDM symbols is larger than four; or configuring four remaining REs in the two neighboring OFDM symbols, by the sending terminal equipment, as one REG and determining other remaining REs as the remaining REs which do not constitute the REG in the two neighboring OFDM symbols, when each of numbers of remaining REs in two neighboring OFDM symbols which contain REs for transmitting the CSI-RS and/or the DM-RS in one physical resource block is smaller than four, but a sum of the numbers of REs in the two neighboring OFDM symbols is larger than four. |
