Method for sending channel reservation signal and base station
First Claim
Patent Images
1. A method for sending a channel reservation signal, the method comprising:
- detecting, by a base station, whether a system signal is received at the base station on an unlicensed channel, wherein the system signal is a wireless fidelity (WiFi) signal in a WiFi system;
performing, by the base station, clear channel assessment (CCA) based on detecting that the system signal is received on the unlicensed channel,wherein the CCA is started by the base station in a cell on/off mechanism,wherein the CCA is started in N subframes prior to a moment at which a licensed-assisted access (LAA) system, to which the base station belongs, enters a cell-on state, andwherein a duration of the N subframes is a transmit opportunity (TXOP) in the WiFi system; and
sending, by the base station, a channel reservation signal on the unlicensed channel to reserve the unlicensed channel based on the CCA indicating that the unlicensed channel is idle.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for sending a channel reservation signal and a base station, related to the field of communications technologies, includes: detecting, by a base station, whether a system signal is received on an unlicensed channel; and sending, by the base station, a channel reservation signal on the unlicensed channel to reserve the unlicensed channel based on the base station detecting that the system signal is received on the unlicensed channel.
-
Citations
24 Claims
-
1. A method for sending a channel reservation signal, the method comprising:
-
detecting, by a base station, whether a system signal is received at the base station on an unlicensed channel, wherein the system signal is a wireless fidelity (WiFi) signal in a WiFi system; performing, by the base station, clear channel assessment (CCA) based on detecting that the system signal is received on the unlicensed channel, wherein the CCA is started by the base station in a cell on/off mechanism, wherein the CCA is started in N subframes prior to a moment at which a licensed-assisted access (LAA) system, to which the base station belongs, enters a cell-on state, and wherein a duration of the N subframes is a transmit opportunity (TXOP) in the WiFi system; and sending, by the base station, a channel reservation signal on the unlicensed channel to reserve the unlicensed channel based on the CCA indicating that the unlicensed channel is idle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus comprising:
a processor and a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions, when executed by the processor, facilitate performing; detecting whether a system signal on an unlicensed channel is received, wherein the system signal is a wireless fidelity (WiFi) signal in a WiFi system; performing clear channel assessment (CCA) based on detecting that the system signal is received on the unlicensed channel, wherein the CCA is started in a cell on/off mechanism, wherein the CCA is started in N subframes prior to a moment at which a licensed-assisted access (LAA) system enters a cell-on state, and wherein a duration of the N subframes is a transmit opportunity (TXOP) in the WiFi system; and sending a channel reservation signal on the unlicensed channel to reserve the unlicensed channel based on the CCA indicating that the unlicensed channel is idle. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification