A method, system and device for control channel resource mapping
A control channel resource and control channel technology, which is applied in the field of control channel resource mapping, can solve the problems of waste of resources, no control channel interference randomization, and increased coding complexity, so as to reduce complexity, enhance anti-interference ability, Effect of Increasing Frequency Diversity Gain
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specific Embodiment 1
[0106] see Figure 5 , Figure 5 It is a flow chart of the control channel resource mapping method in Embodiment 1 of the present invention. In this embodiment, it is assumed that the size of the CRB has been predetermined according to the method described in step 201 . Such as Figure 5 As shown, the process includes the following steps:
[0107] Step 501, according to the ratio of the number of REs that can be used for control channel transmission in each available OFDM symbol, determine the size of the CRB unit that the CRB can divide.
[0108] In this step, the ratio of the number of REs of the CRB on each available OFDM symbol can be determined according to the ratio of the number of REs that can be used for control channel transmission in each available OFDM symbol. to determine the number U of REs to be mapped to CRB units that can be divided into CRBs.
[0109] Assume that the number of REs that N OFDM symbols can use for the control channel is O 0 , O 1 ,...,O ...
specific Embodiment 2
[0141] see Figure 8 , Figure 8 It is a flow chart of the control channel resource mapping method in the second embodiment of the present invention. In this embodiment, it is still assumed that the size of the CRB has been predetermined according to the method described in step 201 . Such as Figure 8 As shown, the process includes the following steps:
[0142] Step 801, according to the ratio of the number of REs that can be used for control channel transmission in N available OFDM symbols, determine when the REs in each OFDM symbol are divided into control units, the size u of the control unit in each available OFDM symbol 0 , u 1 ,...,u N-1 .
[0143] Assume that the number of REs available for the control channel within n OFDM symbols is O 0 , O 1 ,...,O N-1 , then when the REs in N OFDM symbols in each control subband are divided into P control units of equal size, the size u of the control units in each available OFDM symbol 0 , u 1 ,...,u N-1 , satisfying t...
specific Embodiment 3
[0164] see Figure 11 , Figure 11 It is a flow chart of the control channel resource mapping method in the third embodiment of the present invention. In this embodiment, it is still assumed that the size of the CRB has been predetermined according to the method described in step 201 . Such as Figure 11 As shown, the process includes the following steps:
[0165] Step 1101: Divide the available bandwidth of the control channel in the available OFDM symbols into M control subbands.
[0166] In this embodiment, the value of M may be determined according to empirical values or actual needs, and then the available bandwidth of the control channel in the available OFDM symbols is divided into M control subbands. In addition, the divided M control subbands may be numbered according to frequency sequence in the frequency direction. For example: from high frequency to low frequency or from low frequency to high frequency, they are numbered as the 0th, 1st, and M-1th control su...
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