Analog channel measurement method and base station
View Patent ↗Disclosed are an analog channel measurement method and a base station, for use in implementing measurement of an analog channel in a digital-analog hybrid beamforming system. The method is such that: a base station receives a reference signal, where the base station comprises a digital-analog hybrid beamforming antenna system, and the digital-analog hybrid beamforming antenna system comprises digital channels and analog channels; the base station selects an analog channel group from an analog channel group set on the basis of the reference signal and employs the reference signal in measuring each analog channel of the selected analog channel group, where the number of analog channels that each analog channel group comprises is equal to the number of digital channels in the digital-analog hybrid beamforming antenna system.
1. A method for measuring an analog channel, the method comprising:
receiving, by a base station, a reference signal, wherein the base station comprises a hybrid digital and analog beam-forming antenna system comprising digital channels and analog channels; and
selecting, by the base station, a group of analog channels from a set of groups of analog channels according to the reference signal, and measuring each analog channel in the selected group of analog channels using the reference signal, wherein a number of analog channels in each group of analog channels is equal to a number of digital channels in the hybrid digital and analog beam-forming antenna system.
2. The method according to claim 1 , wherein selecting, by the base station, the group of analog channels from the set of groups of analog channels according to the reference signal comprises:
selecting, by the base station, a group of analog channels, corresponding to a time resource occupied for receiving the reference signal, from the set of groups of analog channels according to the time resource.
3. The method according to claim 1 , wherein selecting, by the base station, the group of analog channels from the set of groups of analog channels according to the reference signal comprises:
determining, by the base station, a frequency at which the reference signal is transmitted, and selecting a group of analog channels corresponding to the frequency from the set of groups of analog channels.
4. The method according to claim 1 , wherein selecting, by the base station, the group of analog channels from the set of groups of analog channels according to the reference signal comprises:
selecting, by the base station, a subset of groups of analog channels, corresponding to a time resource occupied for receiving the reference signal, from the set of groups of analog channels according to the time resource, wherein the subset of groups of analog channels comprises a preset number of groups of analog channels; and
determining, by the base station, a frequency at which the reference signal is transmitted, and selecting a group of analog channels corresponding to the frequency from the selected subset of groups of analog channels.
5. The method according to claim 1 , wherein the analog channels in the hybrid digital and analog beam-forming antenna system are grouped into the set of groups of analog channels;
wherein the analog channels in each group of analog channels do not overlap with those in any other group of analog channels.
6. The method according to claim 1 , wherein the method further comprises:
keeping, by the base station, other analog channels in the hybrid digital and analog beam-forming antenna system disabled, when measuring each analog channel in the selected group of analog channels using the reference signal, wherein the other analog channels are analog channels in the hybrid digital and analog beam-forming antenna system other than analog channels comprised in the selected group of analog channels.
7. The method according to claim 2 , wherein the base station and a user equipment agree on the time resource occupied by the reference signal in advance.
8. The method according to claim 3 , wherein the base station and a user equipment agree on the frequency, at which the reference signal is transmitted, in advance.
9. A base station, comprising at least one processor and a memory; wherein the memory is configured to store computer readable program codes, and the at least one processor is configured to execute the computer readable program codes to:
receive a reference signal, wherein the base station comprises a hybrid digital and analog beam-forming antenna system comprising digital channels and analog channels; and
select a group of analog channels from a set of groups of analog channels according to the reference signal, and to measure each analog channel in the selected group of analog channels using the reference signal, wherein a number of analog channels in each group of analog channels is equal to a number of digital channels in the hybrid digital and analog beam-forming antenna system.
10. The base station according to claim 9 , wherein the at least one processor is further configured to execute the computer readable program codes to:
select a group of analog channels, corresponding to a time resource occupied for receiving the reference signal, from the set of groups of analog channels according to the time resource.
11. The base station according to claim 9 , wherein the at least one processor is further configured to execute the computer readable program codes to:
determine a frequency at which the reference signal is transmitted, and to select a group of analog channels corresponding to the frequency from the set of groups of analog channels.
12. The base station according to claim 9 , wherein the at least one processor is further configured to execute the computer readable program codes to:
select a subset of groups of analog channels, corresponding to a time resource occupied for receiving the reference signal, from the set of groups of analog channels according to the time resource, wherein the subset of groups of analog channels comprises a preset number of groups of analog channels; and
determine a frequency at which the reference signal is transmitted, and to select a group of analog channels corresponding to the frequency from the selected subset of groups of analog channels.
13. The base station according to claim 9 , wherein the analog channels in the hybrid digital and analog beam-forming antenna system are grouped into the set of groups of analog channels;
wherein the analog channels in each group of analog channels do not overlap with those in any other group of analog channels.
14. The base station according to claim 9 , wherein the at least one processor is further configured to execute the computer readable program codes to:
keep other analog channels in the hybrid digital and analog beam-forming antenna system disabled, when measuring each analog channel in the selected group of analog channels using the reference signal, wherein the other analog channels are analog channels in the hybrid digital and analog beam-forming antenna system other than analog channels comprised in the selected group of analog channels.
15. The base station according to claim 10 , wherein the base station and a user equipment agree on the time resource occupied by the reference signal in advance.
16. The base station according to claim 11 , wherein the base station and a user equipment agree on the frequency, at which the reference signal is transmitted, in advance.
17. The method according to claim 4 , wherein the base station and a user equipment agree on the time resource occupied by the reference signal in advance.
18. The method according to claim 4 , wherein the base station and a user equipment agree on the frequency, at which the reference signal is transmitted, in advance.
19. The base station according to claim 12 , wherein the base station and a user equipment agree on the time resource occupied by the reference signal in advance.
20. The base station according to claim 12 , wherein the base station and a user equipment agree on the frequency, at which the reference signal is transmitted, in advance.