Transmission method and user equipment

1. A method, comprising:

determining, by a device, a first discovery signal;

obtaining, by the device after encoding the first discovery signal, respective initial locations of k redundancy versions (RVs) of the first discovery signal, wherein k is a positive integer not less than 1;

separately mapping, by the device according to respective initial locations off RVs of the k RVs, each RV of the f RVs to a plurality of physical resource block pairs (PRB pairs) of a first resource location, wherein f is a positive integer not less than 1 and not greater than k; and

transmitting, by the device at the first resource location, the f RVs of the first discovery signal.

2. The method according to claim 1 , wherein determining the first discovery signal comprises:

determining, by the device, a length of the first discovery signal;

determining, by the device according to the length of the first discovery signal, that an RV of the first discovery signal occupies n PRB pairs, wherein n is a positive integer not less than 2; and

configuring, by the device, first indication information in the first discovery signal, wherein the first indication information indicates a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the device in the first resource.

3. The method according to claim 1 , wherein:

the first resource location is one of h resource locations comprising j PRB pairs and m subframes, wherein m is a positive integer not less than 1, j is a positive integer greater than 1, j≥m, h is a positive integer greater than 1, and the h resource locations do not overlap.

4. The method according to claim 3 , wherein in the h resource locations, a number of a first PRB pair at a latter resource location of adjacent resource locations is 1 plus a number of a last PRB pair at a former resource location, a sequence of the h resource locations is determined first according to a frequency domain and then according to a time domain, and numbers of PRB pairs at each resource location are successive.

5. The method according to claim 3 , wherein in the h resource locations, a number of a first PRB pair at a latter resource location of adjacent resource locations is 1 plus a number of a last PRB pair at a former resource location, a sequence of the h resource locations is determined first according to a time domain and then according to a frequency domain, and numbers of PRB pairs at each resource location are successive.

6. The method according to claim 1 , wherein separately mapping each RV of the f RVs to the plurality physical resource block pairs (PRB pairs) of the first resource location comprises:

separately mapping, by the device according to the respective initial locations of the f RVs of the k RVs, each RV of the f RVs to the plurality of PRB pairs of the first resource location, wherein a sequence of mapping each RV of the f RVs to the plurality of PRB pairs is determined first according to a frequency domain and then according to a time domain.

7. The method according to claim 1 , wherein separately mapping each RV of the f RVs to the plurality of physical resource block pairs (PRB pairs) of the first resource location comprises:

separately mapping, by the device according to the respective initial locations of the f RVs of the k RVs, each RV of the f RVs to the plurality of physical resource block pairs (PRB pairs) of the first resource location, wherein a sequence of mapping each RV of the f RVs to the plurality of PRB pairs is determined first according to a time domain and then according to a frequency domain.

8. A device, comprising:

a processor;

a transceiver;

a memory; and

a communications bus;

wherein the communications bus is configured for connection and communication among the processor, the transceiver, and the memory;

wherein the transceiver is configured to enable external communication by the device; and

wherein the memory comprises computer program code, where the memory and the computer program code are configured, with the processor, to cause the device to:

determine a first discovery signal;

encode the first discovery signal to obtain respective initial locations of k redundancy versions (RVs) of the first discovery signal, wherein k is a positive integer not less than 1;

separately map, according to respective initial locations off RVs of the k RVs, each RV of the f RVs to a plurality of physical resource block pairs (PRB pairs) of a first resource location, wherein f is a positive integer not less than 1 and not greater than k; and

transmit, at the first resource location, the f RVs of the first discovery signal.

9. The device according to claim 8 , wherein the memory and the computer program code are further configured, with the processor, to cause the device to:

determine a length of the first discovery signal;

determine, according to the length of the first discovery signal, that an RV of the first discovery signal occupies n PRB pairs, wherein n is a positive integer not less than 2; and

configure first indication information in the first discovery signal, wherein the first indication information indicates a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the device in the first resource.

10. The device according to claim 9 , wherein in h resource locations, a number of a first PRB pair at a latter resource location of adjacent resource locations is 1 plus a number of a last PRB pair at a former resource location, a sequence of the h resource locations is determined first according to a frequency domain and then according to a time domain, and numbers of PRB pairs at each resource location are successive.

11. The device according to claim 9 , wherein in h resource locations, a number of a first PRB pair at a latter resource location of adjacent resource locations is 1 plus a number of a last PRB pair at a former resource location, a sequence of the h resource locations is determined first according to a time domain and then according to a frequency domain, and numbers of PRB pairs at each resource location are successive.

12. The device according to claim 8 , wherein the first resource location is one of h resource locations comprising j PRB pairs and m subframes, wherein m is a positive integer not less than 1, j≥m, h is a positive integer greater than 1, and the h resource locations do not overlap.

13. The device according to claim 8 , wherein the memory and the computer program code are further configured, with the processor, to cause the device to:

separately map, according to the respective initial locations of the f RVs of the k RVs, each RV of the f RVs to the plurality of physical resource block pairs (PRB pairs) of the first resource location, wherein a sequence of mapping each RV of the f RVs to the plurality of PRB pairs is determined first according to a frequency domain and then according to a time domain.

14. The device according to claim 8 , wherein the memory and the computer program code are further configured, with the processor, to cause the device to:

separately map, according to the respective initial locations of the f RVs of the k RVs, each RV of the f RVs to the plurality of physical resource block pairs (PRB pairs) of the first resource location, wherein a sequence of mapping each RV of the f RVs to the plurality of PRB pairs is determined first according to a time domain and then according to a frequency domain.

15. A device, comprising:

means for determining a first discovery signal;

means for encoding the first discovery signal to obtain respective initial locations of k redundancy versions (RVs) of the first discovery signal, wherein k is a positive integer not less than 1;

means for separately mapping, according to respective initial locations off RVs of the k RVs, each RV of the f RVs to a plurality of physical resource block pairs (PRB pairs) of a first resource location, wherein f is a positive integer not less than 1 and not greater than k; and

means for transmitting, at the first resource location, the f RVs of the first discovery signal.

16. The device according to claim 15 , further comprising:

means for determining a length of the first discovery signal;

means for determining, according to the length of the first discovery signal, that an RV of the first discovery signal occupies n PRB pairs, wherein n is a positive integer not less than 2; and

means for configuring first indication information in the first discovery signal, wherein the first indication information indicates a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the device in the first resource.