Data transmission method and device
A data transmission method and data transmission technology are applied in the field of data transmission methods and devices, and can solve the problems of low frequency diversity gain and the like
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Embodiment 1
[0140] This preferred embodiment provides a frequency hopping method, which can reduce frequency diversity gain loss.
[0141] The method in this preferred embodiment includes the following steps S202 to S206.
[0142] Step S202: According to the inter-subband frequency hopping f hop The value of and the image hopping frequency f m The value of , to obtain the inter-subband hopping frequency f hop and mirror frequency hopping f m Various combinations of values are taken and expressed as a set S, as shown in Table 1 below.
[0143] Table 1
[0144]
[0145] Among them, the inter-subband hopping frequency f hop The range of values is {0,1,…,N sb -1}, mirror frequency hopping f m The range of values is {0,1}, N sb Indicates the number of subbands within the frequency hopping bandwidth, N hop,m Indicates the inter-subband hopping frequency f hop and mirror frequency hopping f m The number of combinations of values, that is, the size of the set S (equivalent to ...
Embodiment 2
[0177] This preferred embodiment provides a frequency hopping method. In this preferred embodiment, the frequency hopping period P hop is the time length n of a radio frame f , the output time index number N i is 20, the number of subbands corresponding to the frequency hopping bandwidth N sb is 4, the cell identifier is 1 and the pseudo-random sequence interception granularity K2 is 10, namely
[0178] P hop =n f , n s =0,1,…,19,N i =20, N sb =4, K2=10,
[0179] Among them, a wireless frame n f Consists of 20 time slots, n s Indicates that in a frequency hopping period P hop The slot index within .
[0180] The method of this preferred embodiment comprises the steps:
[0181] Step S302: According to the inter-subband frequency hopping f hop The value of and the image hopping frequency f m The value of , to obtain the inter-subband hopping frequency f hop and mirror frequency hopping f m Various combinations of values are taken and expressed as a set S, a...
Embodiment 3
[0247] This preferred embodiment provides a frequency hopping method. In this preferred embodiment, the frequency hopping period P hop is the time length n of a radio frame f , the output time index number N i is 10, the number of subbands corresponding to the frequency hopping bandwidth N sb 3, the cell identifier is 37 and the pseudo-random sequence interception granularity K2 is 10, namely
[0248] P hop =n f , n s =0,1,…,19,N i =10, N sb =3, K2=10,
[0249] Among them, a wireless frame n f Consists of 20 time slots, n s Indicates that in a frequency hopping period P hop The slot index within .
[0250] The method of this preferred embodiment comprises the steps:
[0251] Step S402: According to the inter-subband frequency hopping f hop The value of and the image hopping frequency f m The value of , to obtain the inter-subband hopping frequency f hop and mirror frequency hopping f m Various combinations of values are taken and expressed as a set S, as ...
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