Method and apparatus for mitigating data loss during autonomous system information reading
First Claim
1. A method for wireless communication, comprising:
- suspending, by a user equipment (UE), reception of downlink transmissions from a serving cell during a system information (SI) reading gap for performing inter-frequency SI reading;
maintaining, by the UE, a first frequency at an uplink oscillator during the SI reading gap;
receiving, at the UE, system information from a neighbor cell on a second frequency during the SI reading gap, the second frequency being different from the first frequency and corresponding to a downlink oscillator; and
maintaining, by the UE, a capability to transmit on an uplink to the serving cell during the SI reading gap such that the UE has the capability to transmit on the uplink to the serving cell and receive the system information on a downlink from the neighbor cell during the SI reading gap.
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Accused Products
Abstract
Techniques for mitigating data loss during autonomous system information (SI) reading by a user equipment (UE) are described. For autonomous SI reading, the UE may autonomously determine when to read system information from neighbor cells and may not inform a serving cell. In one design, the UE may autonomously select a SI reading gap for reading system information from a neighbor cell. During the SI reading gap, the UE may suspend reception of downlink transmission from the serving cell, receive system information from the neighbor cell, and maintain capability to transmit on the uplink to the serving cell. In one design, the serving cell may determine SI reading gaps autonomously selected by the UE for reading system information from neighbor cells. The serving cell may communicate with the UE by accounting for the SI reading gaps of the UE, e.g., may suspend communication with the UE during the SI reading gaps.
27 Citations
25 Claims
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1. A method for wireless communication, comprising:
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suspending, by a user equipment (UE), reception of downlink transmissions from a serving cell during a system information (SI) reading gap for performing inter-frequency SI reading; maintaining, by the UE, a first frequency at an uplink oscillator during the SI reading gap; receiving, at the UE, system information from a neighbor cell on a second frequency during the SI reading gap, the second frequency being different from the first frequency and corresponding to a downlink oscillator; and maintaining, by the UE, a capability to transmit on an uplink to the serving cell during the SI reading gap such that the UE has the capability to transmit on the uplink to the serving cell and receive the system information on a downlink from the neighbor cell during the SI reading gap. - View Dependent Claims (2, 3, 4, 5)
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6. A method for wireless communication, comprising:
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transmitting, to a serving cell, timing information for a neighbor cell from which a user equipment (UE) is to receive system information (SI); suspending, by the UE, reception of downlink transmissions on a first frequency from the serving cell during a SI reading gap; receiving, at the UE, system information on a second frequency from the neighbor cell during the SI reading gap, the second frequency being different from the first frequency and corresponding to a downlink oscillator; and maintaining, by the UE, a capability to transmit on an uplink to the serving cell during the SI reading gap such that the UE has the capability to transmit on the uplink to the serving cell and receive the system information on a downlink from the neighbor cell during the SI reading gap. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method for wireless communication, comprising:
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transmitting, to a serving cell, tune-away information indicating a system information (SI) reading gap during which a user equipment (UE) is to receive SI from a neighbor cell; suspending, by the UE, reception of downlink transmissions on a first frequency from the serving cell during the SI reading gap; receiving, at the UE, system information on a second frequency from the neighbor cell during the SI reading gap, the second frequency being different from the first frequency and corresponding to a downlink oscillator; and maintaining, by the UE, a capability to transmit on an uplink to the serving cell during the SI reading gap such that the UE has the capability to transmit on the uplink to the serving cell and receive the system information on a downlink from the neighbor cell during the SI reading gap. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A user equipment (UE) for wireless communication, comprising:
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a memory unit; and at least one processor coupled to the memory unit, the at least one processor being configured; to transmit, to a serving cell, timing information for a neighbor cell from which the UE is to receive system information (SI); to suspend reception of downlink transmissions on a first frequency from the serving cell during a SI reading gap; to receive system information on a second frequency from the neighbor cell during the SI reading gap, the second frequency being different from the first frequency and corresponding to a downlink oscillator; and to maintain a capability to transmit on an uplink to the serving cell during the SI reading gap such that the UE has the capability to transmit on the uplink to the serving cell and receive the system information on a downlink from the neighbor cell during the SI reading gap. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification