Method for interference randomization of physical uplink control channel
AssigneeZte Corporation
InventorsShuqiang Xia, Chunli Liang, Bo Dai, Peng Hao
Life of this patent
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Abstract
A method for interference randomization of physical uplink control channel (PUCCH), which is used in long term evolution (LTE) system, when multiple terminals multiplex PUCCH to transmit uplink control signallings, the difference of index of control channel resource used by any two terminals in the first timeslot of PUCCH is different from the difference of index of control channel resource used by the two terminals in the second timeslot of PUCCH. The invention can realize interference randomization between UEs that multiplex the same PUCCH.
Claims15
A method for interference randomization in a physical uplink control channel, comprising:
- user equipments using different physical uplink control channels to send uplink control signalings in the first and second timeslots of a sub-frame.
A method for interference randomization in a physical uplink control channel, applied in long term evolution system, comprising:
- when a plurality of user equipments are multiplexed in the physical uplink control channel to send uplink control signalings, difference of indexes of control channel resource used by any two user equipments in the first timeslot of the physical uplink control channel being different from that of indexes of control channel resource used by the two user equipments in the second timeslot.
A method for interference randomization in a physical uplink control channel, applied in long term evolution system, comprising:
- user equipments sending acknowledgement/non-acknowledgement messages in a control channel with a control channel resource index of i in the first timeslot and in a control channel with a control channel resource index of g(i, d, N) in the second timeslot, and
- g(i,d,N)=((i+1)×d)mod(N+1)−1
- in the equation, 0≦i≦N−1, N=c×NSCRB/ΔshiftPUCCH, where, c is the number of orthogonal codes in time domain, NSCRB is the number of sub-carriers occupied by one resource block;
- ΔshiftPUCCH is interval of cyclic shifts of a constant amplitude zero auto correlation sequence in the same orthogonal code in time domain;
- d is a natural number prime with N+1;
- mod denotes modulo operation.
Dependencies are inferred from the claim text.