Method for transmitting downlink control signal and apparatus

1. A method performed by a base station, comprising:

generating, by the base station, one or more radio frames; and

sending, by the base station, the one or more radio frames, wherein the one or more radio frames comprise a plurality of blocks and a plurality of downlink control signals, each block of the plurality of blocks carries a physical broadcast channel (PBCH) and a respective synchronization signal, wherein, for each block of the plurality of blocks, the respective synchronization signal carried in the respective block is arranged in a frequency division manner with a downlink control signal of the plurality of downlink control signals, and for each block, the respective synchronization signal of the respective block and the downlink control signal arranged in the frequency division manner with the respective synchronization signal of the respective block are sent using a same beam of the base station, at least two blocks of the plurality of blocks are sent using different beams, and at least two downlink control signals of the plurality of downlink control signals that are arranged in the frequency division manner with synchronization signals of the at least two blocks are sent using different beams.

2. The method according to claim 1 , wherein:

each block of the at least two blocks carries a different beam number;

each block of the at least two blocks carries a different reference signal sequence indicating a respective beam number; or

each block of the at least two blocks carries a different reference signal resource number indicating a respective beam number.

3. The method according to claim 1 , wherein, for each block of the plurality of blocks, the respective synchronization signal carried in the respective block and the respective downlink control signal arranged in the frequency division manner with the respective synchronization signal carried in the respective block are carried by same orthogonal frequency division multiplexing (OFDM) symbols.

4. The method according to claim 1 , wherein the respective synchronization signal carried in each block comprises a primary synchronization signal (PSS) or a secondary synchronization signal (SSS).

5. The method according to claim 1 , wherein each of the plurality of downlink control signals is respectively a random access response signal, a resource allocation information signal, a paging information signal, or a control format indicator signal.

6. The method according to claim 1 , wherein each of the plurality of downlink control signals is respectively carried by a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

7. The method according to claim 1 , wherein the at least two blocks are consecutive in time, and are located in one or more subframes of the one or more radio frames.

8. An apparatus, comprising:

a processor, configured to generate one or more radio frames; and

a transmitter, configured to send the one or more radio frames, wherein the one or more radio frames comprise a plurality of blocks and a plurality of downlink control signals, each block of the plurality of blocks carries a physical broadcast channel (PBCH) and a respective synchronization signal, wherein, for each block of the plurality of blocks, the respective synchronization signal carried in the respective block is arranged in a frequency division manner with a downlink control signal of the plurality of downlink control signals, and for each block, the respective synchronization signal of the respective block and the downlink control signal arranged in the frequency division manner with the respective synchronization signal of the respective block are sent using a same beam of the apparatus, at least two blocks of the plurality of blocks are sent by using different beams, and at least two downlink control signals of the plurality of downlink control signals that are arranged in the frequency division manner with synchronization signals of the at least two blocks are sent using different beams.

9. The apparatus according to claim 8 , wherein:

each block of the at least two blocks carries a different beam number;

each block of the at least two blocks carries a different reference signal sequence indicating a respective beam number; or

each block of the at least two blocks carries a different reference signal resource number indicating a respective beam number.

10. The apparatus according to claim 8 , wherein, for each block of the plurality of blocks, the respective synchronization signal carried in the respective block and the respective downlink control signal arranged in the frequency division manner with the respective synchronization signal carried in the respective block are carried by same orthogonal frequency division multiplexing (OFDM) symbols.

11. The apparatus according to claim 8 , wherein:

each of the plurality of downlink control signals is respectively a random access response signal, a resource allocation information signal, a paging information signal, or a control format indicator signal; and

each of the plurality of downlink control signals is respectively carried by a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

12. A method performed by a terminal device, comprising:

receiving, by the terminal device, one or more symbols from a base station, wherein the one or more symbols include a downlink control signal and a block, the block carries a physical broadcast channel (PBCH) and a synchronization signal, wherein the block and the downlink control signal correspond to a same beam, the same beam corresponds to a downlink beam comprised in a plurality of downlink beams of the base station, and wherein the synchronization signal and the downlink control signal are arranged in a frequency division manner; and

detecting, by the terminal device, the downlink control signal in a specified resource element location of the one or more symbols.

13. The method according to claim 12 , wherein the synchronization signal and the downlink control signal are carried by same orthogonal frequency division multiplexing (OFDM) symbols.

14. The method according to claim 12 , wherein the downlink control signal is a random access response signal, a resource allocation information signal, a paging information signal, or a control format indicator signal.

15. The method according to claim 12 , wherein the downlink control signal is carried by a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

16. An apparatus, comprising:

a receiver, configured to receive one or more symbols from a base station, wherein the one or more symbols include a downlink control signal and a block, the block carries a physical broadcast channel (PBCH) and a synchronization signal, wherein the block and the downlink control signal correspond to a same beam, the same beam corresponds to a downlink beam comprised in a plurality of downlink beams of the base station, and wherein the synchronization signal and the downlink control signal are arranged in a frequency division manner; and

a processor, configured to detect the downlink control signal in a specified resource element location of the one or more symbols.

17. The apparatus according to claim 16 , wherein the downlink control signal is carried by a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

18. The apparatus according to claim 16 , wherein the synchronization signal and the downlink control signal are carried by same orthogonal frequency division multiplexing (OFDM) symbols.

19. The apparatus according to claim 16 , wherein the downlink control signal is a random access response signal, a resource allocation information signal, a paging information signal, or a control format indicator signal.

20. The apparatus according to claim 16 , wherein the synchronization signal comprises a primary synchronization signal (PSS) or a secondary synchronization signal (SSS).