Method and device for allocating resources for physical hybrid automatic repeat request indicator channel

Abstract

The invention provides a method and a device for allocating resources for a physical hybrid automatic repeat request indicator channel. The method comprises the following steps of: acquiring a physical resource block number offset corresponding to a minimum physical resource block number according to a group number, a sequence number, the number of a plurality of component carriers and the number of first component carriers, and acquiring a first group number and a first orthogonal sequence number according to the group number, the sequence number, the physical resource block number offset, the minimum physical resource block number and a first demodulation reference signal cycle offset. Because the physical resource block number offset is related to the number of the first component carriers, the physical resource block number offset corresponds to different component carriers, even if the minimum physical resource block number is the same, corresponding physical resource block number offsets are different, and a group number and an orthogonal sequence number of the corresponding resource allocation result can be different. In the mode, when total resources to be allocated are enough, the resource allocation conflict of different component carriers due to the same minimum physical resource block number can be avoided.

Description

technical field [0001] The present application relates to resource allocation in a wireless communication system, and in particular to a method and device for allocating resources for a physical hybrid automatic repeat request indication channel. Background technique [0002] The LTE-Advanced (Long Term Evolution system-Advanced) mobile communication system will support a higher spectrum bandwidth than LTE Rel-8 (Release 8). These spectrums may be scattered in many scattered channels, and these spectrums need to be combined for use. The carrier aggregation technology can solve this problem, that is, the system can simultaneously transmit or receive data on multiple component carriers (component carriers) according to its actual capabilities. Regarding the application of carrier aggregation technology, the following consensus has been reached to support symmetric and asymmetric carrier aggregation; and, from the user's point of view, each component carrier corresponds to a tr...

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Problems solved by technology

However, in an asymmetric carrier aggregation scenario, such as Figure 2a and Figure 2b As shown, there is no one-to-one correspondence between downlink component carriers and uplink component carriers, and the design scheme of Rel-8 cannot be directly applied, especially when the number of uplink component carriers is greater than the number of downlink component carriers, and one downlink component carrier must support multiple ACK / NACK signal transmission of uplink component carrier

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