Physical hybrid automatic repeat request indicator channel (PHICH) data sending method and device
A data transmission method and a technology of a data transmission device, which are applied to electrical components, wireless communications, etc., can solve problems such as waste of power resources, low utilization of PHICH channel frequency domain resources, and inability to allocate PHICH resources, etc., so as to reduce the demodulation threshold, Effective anti-jamming and improving the utilization of frequency domain resources
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[0037] The PHICH data transmission and device provided by the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
[0038] In the prior art, when allocating PHICH resources to a UE (User equipment, user terminal), the base station only considers whether the PHICH resources are occupied by other users, and allocates the PHICH resources to the UE if the resources are free. This approach may not only lead to an unbalanced number of bearer users in the PHICH group, resulting in low utilization of PHICH channel frequency domain resources, but also may cause the power of each PHICH group to be uncontrolled due to the randomness of allocation, affecting end users' demodulation of PHICH channel effect.
[0039] Taking the 20M system bandwidth as an example, Let N g =2, TDD system, common cyclic prefix, subframe configuration 0. Then at subframe 0, the number of PHICH groups is Therefore, according to the existin...
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