Time-frequency resource allocation method and apparatus for access signal and communication system

1. A time-frequency resource allocation apparatus for an access signal, configured in a base station, the apparatus comprising:

a memory that stores a plurality of instructions;

processor circuitry that couples to the memory and that is configured to execute the instructions to:

indicate, via control signaling, a position of a time-frequency resource for transmitting an access signal, the access signal being transmitted via common numerologies or via different numerologies or via one numerology,

wherein the access signal is a system message, and

wherein the control signaling is transmitted in an allocated time-frequency resource or a range of time-frequency resources, and the processor circuitry further indicates, via a broadcast message, the time-frequency resource or the range of time-frequency resources for transmitting the control signaling,

wherein,

if the broadcast message is transmitted via common numerologies, the control signaling is transmitted via common numerologies and the access signal is transmitted via common numerologies,

or if the broadcast message is transmitted via different numerologies, the control signaling is transmitted via common numerologies and the access signal is transmitted via common numerologies,

or if the broadcast message is transmitted via different numerologies, the control signaling is transmitted via different numerologies and the access signal is transmitted by using common numerologies,

or if the broadcast message is transmitted via different numerologies, the control signaling is transmitted via different numerologies and the access signal is transmitted via different numerologies,

the broadcast message transmitted by the processor circuitry comprises: information for deriving a position or a range of allocated time-frequency resources used to transmit the control signaling, and the control signaling transmitted by the processor circuitry comprises: information for deriving a position of an allocated time-frequency resource used to transmit the access signal.

2. The apparatus according to claim 1 , wherein the broadcast message transmitted by the processor circuitry further comprises: information for indicating a numerology used to transmit the control signaling.

3. The apparatus according to claim 1 , wherein the control signaling transmitted by the processor circuitry further comprises: information for indicating a numerology used to transmit the access signal.

4. The apparatus according to claim 1 , wherein,

if the broadcast message is transmitted via common numerologies, the control signaling is transmitted via common numerologies and the access signal is transmitted by using different numerologies,

or if the broadcast message is transmitted by using different numerologies, the control signaling is transmitted via common numerologies and the access signal is transmitted via different numerologies,

the broadcast message transmitted by the processor circuitry comprises: information for deriving a position or a range of allocated time-frequency resources used to transmit the control signaling, and the control signaling transmitted by the processor circuitry comprises: information for deriving a position of an allocated time-frequency resource used to transmit the access signal and information for indicating a numerology used to transmit the access signal.

5. The apparatus according to claim 4 , wherein the broadcast message transmitted by the processor circuitry further comprises: information for indicating a numerology for transmitting the control signaling.

6. The apparatus according to claim 1 , wherein,

if the broadcast message is transmitted via common numerologies, the control signaling is transmitted via different numerologies and the access signal is transmitted via common numerologies,

the broadcast message transmitted by the processor circuitry comprises: information for deriving a position or a range of allocated time-frequency resources used to transmit the control signaling and information for indicating a numerology used to transmit the control signaling, and the control signaling transmitted by the processor circuitry comprises: information for deriving a position of an allocated time-frequency resource used to transmit the access signal.

7. The apparatus according to claim 6 , wherein the control signaling transmitted by the processor circuitry further comprises: information for indicating a numerology used to transmit the access signal.

8. A time-frequency resource allocation apparatus for an access signal, configured in a base station, the apparatus comprising:

a memory that stores a plurality of instructions;

processor circuitry that couples to the memory and that is configured to execute the instructions to:

indicate, via a broadcast message, a position of a time-frequency resource for transmitting an access signal, the access signal being transmitted via common numerologies or via different numerologies or via one numerology,

wherein the access signal is a system message,

wherein,

if the broadcast message is transmitted via common numerologies and the access signal is transmitted via common numerologies,

or if the broadcast message is transmitted via different numerologies and the access signal is transmitted via common numerologies,

or if the broadcast message is transmitted via different numerologies and the access signal is transmitted via different numerologies,

the broadcast message transmitted by the processor circuitry comprises: information for deriving a position of an allocated time-frequency resource used to transmit the access signal.

9. The apparatus according to claim 8 , wherein the broadcast message transmitted by the processor circuitry further comprises: information for indicating a numerology used to transmit the access signal.

10. The apparatus according to claim 8 , wherein,

if the broadcast message is transmitted via common numerologies and the access signal is transmitted via different numerologies,

the broadcast message transmitted by the processor circuitry comprises: information for deriving a position of an allocated time-frequency resource used to transmit the access signal and information for indicating a numerology used to transmit the access signal.

11. The apparatus according to claim 8 , wherein the broadcast message includes unfrequently changed information and frequently changed information, and the processor circuitry periodically or aperiodically transmits the unfrequently changed information and the frequently changed information via same broadcast message.

12. The apparatus according to claim 8 , wherein the broadcast message includes unfrequently changed information and frequently changed information, the processor circuitry transmits the unfrequently changed information and the frequently changed information via different broadcast messages, and the processor circuitry periodically transmits the unfrequently changed information via a first broadcast message, and periodically or aperiodically transmits the frequently changed information via a second broadcast message.

13. The apparatus according to claim 8 , wherein the broadcast message includes unfrequently changed information and frequently changed information, and the processor circuitry periodically or aperiodically transmits the unfrequently changed information and the frequently changed information via same broadcast message at a first period of time, and periodically or aperiodically transmits the unfrequently changed information or the frequently changed information at a second period of time.