METHOD AND APPARATUS FOR TIMING ADVANCE ADJUSTMENT IN MULTI-POINT COOPERATION TRANSMISSION
First Claim
1. A method of adjusting timing advance for a multi-point cooperation communication system, comprising:
- selecting at least one reception point as a reference point for a user equipment to adjust the timing advance; and
providing the selected at least one reference point to the user equipment.
3 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the present invention provide a method and apparatus for timing advance adjustment in multi-point cooperation transmission, wherein the method comprises receiving, at one or more reception points, an uplink reference signal from a user equipment; selecting, based on signal quality of the uplink reference signal, one of the one or more reception points as a reference point for the user equipment to adjust timing advance; and indicating a selected reference point to the user equipment. With the method and apparatus in the embodiments of the present invention, a user equipment may be provided with a suitable reception point as a reference point so that the user equipment can efficiently adjust the timing advance timing advance based on the time situation of receiving signals from the reference point so as to overcome inter-symbol-interference at the reception point, improve the receiving efficiency of the reception point, and thereby to improve the whole performance of a multi-point cooperation transmission system.
15 Citations
14 Claims
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1. A method of adjusting timing advance for a multi-point cooperation communication system, comprising:
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selecting at least one reception point as a reference point for a user equipment to adjust the timing advance; and providing the selected at least one reference point to the user equipment. - View Dependent Claims (2, 3)
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4. A method of adjusting timing advance for a multi-point cooperation communication system, comprising:
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recording a reception time of receiving a downlink reference signal from a reference point, wherein the reference point is one of the reception points in the multi-point cooperation communication system and is indicated via a serving base station; and adjusting the timing advance for uplink transmission based on the recorded reception time and a timing advance command from the serving base station. - View Dependent Claims (5, 6)
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7. An apparatus of adjusting timing advance for a multi-point cooperation communication system, comprising:
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a module for selecting at least one reception point as a reference point for a user equipment to adjust the timing advance; and a module for providing the selected at least one reference point to the user equipment. - View Dependent Claims (8, 9, 13)
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10. An apparatus of adjusting timing advance for a multi-point cooperation communication system, comprising:
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a module for recording a reception time of receiving a downlink reference signal from a reference point, wherein the reference point is one of the reception points in the multi-point cooperation communication system and is indicated via a serving base station; and a module for adjusting the timing advance for uplink transmission based on the recorded reception time and a timing advance command from the serving base station. - View Dependent Claims (11, 12, 14)
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Specification