Frequency hopping pattern and method for transmitting uplink signals using the same
First Claim
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1. A method for transmitting uplink signals from a user equipment to a base station by a time domain transmission unit of a predetermined size, the method comprising:
- mapping the uplink signals to a resource block in the time domain transmission unit in accordance with a predetermined frequency hopping pattern using a subband hopping; and
transmitting the uplink signals to the base station,wherein the subband hopping is defined such that the resource block to be used for mapping the uplink signals is determined based on an index of ‘
RB(t)’
, wherein;
RB(t)=(a reference index+a(t)*NRBsb)mod NRBsb*Nsb,wherein ‘
t’
indicates an index of the time domain transmission unit and ‘
a(t)’
indicates a random integer value, ‘
Nsb’
is a number of subbands, ‘
NRBsb’
is a number of resource blocks for each subband, andwherein the random integer value of ‘
a(t)’
is generated as a cell-specific random value using an m-sequence generator which uses cell-specific information as an initial value.
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Abstract
A frequency hopping pattern and a method for transmitting uplink signals using the same are disclosed. A frequency hopping pattern is defined by combination of subband hopping, which is performed over one or more subbands divided from a system band for transmission of the uplink signals, and mirroring where resource blocks within one subband are arranged reversely based on the center of the subband. Sequences as to whether to apply minoring and subband hopping amount are cell-specific random numbers, and are generated independently or in combination.
16 Citations
24 Claims
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1. A method for transmitting uplink signals from a user equipment to a base station by a time domain transmission unit of a predetermined size, the method comprising:
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mapping the uplink signals to a resource block in the time domain transmission unit in accordance with a predetermined frequency hopping pattern using a subband hopping; and transmitting the uplink signals to the base station, wherein the subband hopping is defined such that the resource block to be used for mapping the uplink signals is determined based on an index of ‘
RB(t)’
, wherein;
RB(t)=(a reference index+a(t)*NRBsb)mod NRBsb*Nsb,wherein ‘
t’
indicates an index of the time domain transmission unit and ‘
a(t)’
indicates a random integer value, ‘
Nsb’
is a number of subbands, ‘
NRBsb’
is a number of resource blocks for each subband, andwherein the random integer value of ‘
a(t)’
is generated as a cell-specific random value using an m-sequence generator which uses cell-specific information as an initial value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A user equipment for transmitting uplink signals to a base station by a time domain transmission unit of a predetermined size, the user equipment comprising:
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a mapper for mapping the uplink signals to a resource block in the time domain transmission unit in accordance with a predetermined frequency hopping pattern using a subband hopping; and a transmitter for transmitting the uplink signals to the base station, wherein the subband hopping is defined such that the resource block to be used for mapping the uplink signals is determined based on an index of ‘
RB(t)’
, wherein;
RB(t)=(a reference index+a(t)*NRBsb) mod NRBsb*Nsb,wherein ‘
t’
indicates an index of the time domain transmission unit, ‘
a(t)’
indicates a random integer value, ‘
Nsb’
is a number of subbands, ‘
NRBsb’
is a number of resource blocks for each subband, andwherein the user equipment further comprises an m-sequence generator, wherein the random integer value of ‘
a(t)’
is generated as a cell-specific random value using the m-sequence generator which uses cell-specific information as an initial value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for receiving uplink signals from a user equipment by a time domain transmission unit of a predetermined size, the method comprising:
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receiving, from the user equipment, the uplink signals through a resource block in the time domain transmission unit in accordance with a predetermined frequency hopping pattern using a subband hopping, wherein the subband hopping is defined such that the resource block through which the uplink signals are received is determined based on an index of ‘
RB(t)’
, wherein;
RB(t)=(a reference index+a(t)*NRBsb)mod NRBsb*Nsb,wherein ‘
t’
indicates an index of the time domain transmission unit and ‘
a(t)’
indicates a random integer value, ‘
Nsb’
is a number of subbands, ‘
NRBsb’
is a number of resource blocks for each subband, andwherein the random integer value of ‘
a(t)’
is generated as a cell-specific random value using an m-sequence generator which uses cell-specific information as an initial value. - View Dependent Claims (23, 24)
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Specification