Access node, a communication device, respective method performed thereby for carrier hopping
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGen Li, Jinhua Liu, Zhan Zhang
Life of this patent
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Abstract
An access node, a communication device, methods performed thereby and a computer readable storage medium for carrier hopping are provided. A method of carrier hopping for an access node of a wireless communication network is provided. The access node operates on a first carrier in an unlicensed band. The method comprises: determining whether a hopping triggering condition is satisfied; and in response to determining that the hopping triggering condition is satisfied, activating a carrier hopping procedure to a second different carrier in the unlicensed band.
Claims28
A method of carrier hopping for an access node of a wireless communication network, wherein the access node operates on a first carrier in an unlicensed band, the method comprising:
- determining whether a hopping triggering condition is satisfied;
- and
- in response to determining that the hopping triggering condition is satisfied, activating a carrier hopping procedure to a second different carrier in the unlicensed band, wherein:
- the carrier hopping procedure includes a transition period during which the access node performs downlink operations on both the first carrier and the second different carrier;
- and
- the carrier hopping procedure comprises, during the transition period:
- informing a connected communication device to hand over to the second different carrier;
- adding the second different carrier into an inter-frequency measurement list broadcasted through a broadcast signaling, and reducing downlink transmission power on the first carrier gradually while increasing downlink transmission power on the second different carrier;
- and
- configuring the first carrier as a barred carrier to indicate a new coming communication device not to select the first carrier.
A method of carrier hopping for an access node of a wireless communication network, the method comprising:
- obtaining a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for a communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- and
- communicating with the communication device of the wireless communication network according to the carrier hopping pattern.
A method of carrier hopping for a communication device of a wireless communication network, wherein the communication device communicates with an access node of the wireless communication network on a first carrier in an unlicensed band, the method comprising:
- obtaining a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein:
- in the carrier hopping pattern, each of the multiple carriers is arranged in units of subframe;
- and
- the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for the communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- receiving from the access node a carrier hopping command indicating a second different carrier in the unlicensed band;
- and
- handing over to the second different carrier.
A method of carrier hopping for a communication device of a wireless communication network, the method comprising:
- obtaining a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for the communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- and
- communicating with an access node of the wireless communication network according to the carrier hopping pattern.
An access node of a wireless communication network, wherein the access node operates on a first carrier in an unlicensed band, the access node comprising:
- a processor, and
- a memory, the memory containing instructions executable by the processor whereby the access node is configured to:
- determine whether a hopping triggering condition is satisfied;
- and
- in response to determining that the hopping triggering condition is satisfied, activate a carrier hopping procedure to a second different carrier in the unlicensed band, wherein the carrier hopping procedure includes a transition period during which the access node performs downlink operations on both the first carrier and the second different carrier;
- and
- perform, during the transition period:
- informing a connected communication device to hand over to the second different carrier;
- adding the second different carrier into an inter-frequency measurement list broadcasted through a broadcast signaling, and reducing downlink transmission power on the first carrier gradually while increasing downlink transmission power on the second different carrier;
- and
- configuring the first carrier as a barred carrier to indicate a new coming communication device not to select the first carrier.
An access node of a wireless communication network, the access node comprising:
- a processor, and
- a memory, the memory containing instructions executable by the processor whereby the access node is configured to:
- obtain a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for a communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- and
- communicate with the communication device of the wireless communication network according to the carrier hopping pattern.
A communication device of a wireless communication network, wherein the communication device communicates with an access node of the wireless communication network on a first carrier in an unlicensed band, the communication device comprising:
- a processor, and
- a memory, the memory containing instructions executable by the processor whereby the communication device is configured to:
- obtain a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein:
- in the carrier hopping pattern, each of the multiple carriers is arranged in units of subframe;
- and
- the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for the communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- receive from the access node a carrier hopping command indicating a second different carrier in the unlicensed band;
- and
- hand over to the second different carrier.
A communication device of a wireless communication network, the communication device comprising:
- a processor, and
- a memory, the memory containing instructions executable by the processor whereby the communication device is configured to:
- obtain a carrier hopping pattern which defines a virtual carrier comprising multiple carriers in an unlicensed band that are arranged in a contiguous, consecutive and non-overlapping manner in time, wherein the multiple carriers include at least a main carrier and a secondary carrier, the main carrier being configured for carrying both first information for the communication device to access the wireless communication network over the virtual carrier and second information about the carrier hopping pattern;
- and
- communicate with an access node of the wireless communication network according to the carrier hopping pattern.
Dependencies are inferred from the claim text.