Measurement method, configuration method, related device, and system

Patent metadata

Field	Value
Publication number	US-10244415-B2
Application number	US-201615217452-A
Country	US
Kind code	B2
Filing date	Jul 22, 2016
Priority date	Jan 24, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

Embodiments of the present invention disclose a measurement method, including: acquiring, by user equipment, a status of using a target unlicensed frequency band by a target radio access technology RAT; and selecting, by the user equipment, a corresponding measurement mode according to the usage status to measure a radio condition of the target unlicensed frequency band. The embodiments of the present invention further disclose user equipment, a network device, and a system. In the present invention, the user equipment can accurately measure the radio condition of the unlicensed frequency band, so as to provide reference information for the network device to schedule the user equipment.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a terminal, measurement configuration information from a base station, wherein the measurement configuration information is used to instruct the terminal to configure a first measurement mode and a second measurement mode;
wherein the first measurement mode indicates that the terminal, through a target radio access technology (RAT) performs measurement based on
a synchronization signal or a reference signal;
the second measurement mode indicates that the terminal, through a target unlicensed frequency band, performs measurement based on at least one of the following:
physical measurement, spectrum analysis, and spectrum sensing.

2. The method according to claim 1 , further comprising:
performing, by the terminal, at least radio resource management measurement or channel state information measurement when the reference signal is at least one of the following:
cell reference signal, channel state information reference signal, and demodulation reference signal.

3. The method according to claim 1 , wherein the second measurement mode comprises at least one of the following:
physical layer energy detection, covariance matrix detection, matched filtering detection, cyclostationary feature detection, eigenvalue-based spectrum sensing, a received signal strength indicator, interference measurement, a signal-to-noise ratio, a signal to interference plus noise ratio, and rise over thermal.

4. The method according to claim 1 , further comprising:
acquiring, by the terminal, a status of using the target unlicensed frequency band by the RAT; and
selecting, by the terminal, a corresponding measurement mode according to the usage status to measure a radio condition of the target unlicensed frequency band.

5. The method according to claim 4 , wherein the selecting, by the terminal, a corresponding measurement mode according to the usage status to measure a radio condition of the target unlicensed frequency band comprises:
when the terminal determines that the target RAT already occupies the target unlicensed frequency band, selecting the first measurement mode to measure the radio condition of the target unlicensed frequency band, wherein the first measurement mode indicates measurement performed based on the reference signal or the synchronization signal; or
when the terminal determines that the target RAT does not occupy the target unlicensed frequency band, selecting the second measurement mode to measure the radio condition of the target unlicensed frequency band, wherein the second measurement mode indicates measurement performed based on the physical measurement, the spectrum analysis, or the spectrum sensing for the target unlicensed frequency band.

6. The method according to claim 5 , wherein
the acquiring, by terminal, a status of using the target unlicensed frequency band by the target RAT comprises:
receiving, by the terminal, status indication information sent by the base station, wherein the status indication information is used to indicate the status of using the target unlicensed frequency band by the target RAT; and
parsing, by the terminal, the status indication information, so as to obtain the status of using the target unlicensed frequency band by the target RAT; or
the acquiring, by terminal, a status of using the target unlicensed frequency band by the target RAT comprises:
specifying, by the terminal, a subframe in a preset radio frame, so as to detect the status of using the unlicensed frequency band by the target RAT.

7. The method according to claim 1 , further comprising:
configuring, by the terminal, the first measurement mode and the second measurement mode according to the measurement configuration information.

8. A method, comprising:
sending, by a base station, measurement configuration information to a terminal, wherein the measurement configuration information is used to configure a first measurement mode and a second measurement mode to the terminal;
wherein the first measurement mode is based on
a synchronization signal or a reference signal, through a target radio access technology (RAT);
the second measurement mode is through a target unlicensed frequency band, and based on at least one of the following:
physical measurement, spectrum analysis, and spectrum sensing.

9. The method according to claim 8 , further comprising:
sending, by the base station, a downlink synchronization signal, a downlink reference signal, or downlink system information on the target unlicensed frequency band when the target RAT already occupies the target unlicensed frequency band; or
not sending, by the network device, a downlink synchronization signal, a downlink reference signal, or a downlink system information when the target RAT does not occupy the target unlicensed frequency band.

10. The method according to claim 8 , further comprising:
measuring, by the base station, a status of using the target unlicensed frequency band by a target RAT; and
sending, by the base station, status indication information to the terminal, wherein the status indication information is used to indicate the status of using the target unlicensed frequency band by the target RAT.

11. The method according to claim 8 , further comprising:
when the base station determines that the target RAT already occupies the target unlicensed frequency band, instructing the terminal to select the first measurement mode to measure a radio condition of the target unlicensed frequency band; or
when the base station determines that the target RAT does not occupy the target unlicensed frequency band, instructing the terminal to select the second measurement mode to measure a radio condition of the target unlicensed frequency band.

12. The method according to claim 8 , further comprising:
when the base station determines that the target RAT already occupies the target unlicensed frequency band, measuring, by the base station, the radio condition of the target unlicensed frequency band based on an uplink reference signal of the user equipment; or
when the base station determines that the target RAT does not occupy the target unlicensed frequency band, measuring, by the base station, the radio condition of the target unlicensed frequency band based on the physical measurement, the spectrum analysis, or the spectrum sensing for the target unlicensed frequency band.

13. An apparatus, comprising:
a processor; and
a memory, wherein the memory stores a set of instructions, and the processor is configured to invoke the instructions to perform the following operations:
receiving measurement configuration information from a base station, wherein the measurement configuration information is used to instruct a terminal to configure a first measurement mode and a second measurement mode;
wherein the first measurement mode indicates that the terminal, through a target radio access technology (RAT) performs measurement based on at least one of the following:
a synchronization signal or a reference signal;
the second measurement mode indicates that the terminal, through a target unlicensed frequency band, performs measurement based on at least one of the following:
physical measurement, spectrum analysis, and spectrum sensing.

14. The apparatus according to claim 13 , wherein the processor is configured to invoke the instructions to perform:
performing at least radio resource management measurement or channel state information measurement when the reference signal is at least one of the following:
cell reference signal, channel state information reference signal, and demodulation

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhang Jian
• Zeng Qinghai
• Zhang Hongping

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04W72/1231

  Electricity · mapped topic

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W36/0085

  Hand-off measurements · CPC title