Method and system for reducing adjacent channel interference using time division duplex (tdd)
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsErik Westerberg, Krister Sundberg
Life of this patent
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Abstract
The present invention relates to communications systems comprising time division duplex, TDD, technologies, and more especially it relates to allocation of uplink and downlink communications in such communications systems in an orthogonal domain, such as frequency domain.
Claims20
A method of multi-domain allocation of communications in a wireless communications system, the wireless communications system comprising one or more base stations and user equipment, the wireless communications system interconnecting, as requested, base stations and user equipment for communications, the method comprising:
- allocating, in a domain orthogonal to the time domain, time domain duplex communications in a single direction to/from one or more base stations from/to user equipment of the wireless communications system in a particular range of the domain orthogonal to the time domain, and
- allocating time domain duplex communications in both directions between the one or more base stations and user equipment of the wireless communications system in another range of the domain orthogonal to the time domain.
A node for multi-domain allocation of communications in a wireless communications system, the wireless communications system comprising one or more base stations and user equipment, the wireless communications system interconnecting, as requested, base stations and user equipment for communications, the node comprising:
- means for determining allocation information, the allocation information providing information for channel allocation in a domain orthogonal to the time domain;
- where the allocation information causes time domain duplex communications to be provided in a single direction, to/from one or more base stations from/to user equipment of the wireless communications system, and in a particular range of the domain orthogonal to the time domain, and time domain duplex communications to be provided in both directions between the one or more base stations and user equipment of the wireless communications system and in another range of the domain orthogonal to the time domain;
- and
- means for providing the allocation information.
A node of a wireless communications system arranged for multi-domain allocation of communications in the wireless communications system, the wireless communications system interconnecting, as requested, one or more base stations and user equipment of the system for communications, the node comprising:
- means for allocating, in a domain orthogonal to the time domain, time domain duplex communications in a single direction to/from one or more base stations from/to user equipment of the wireless communications system in a particular range of the domain orthogonal to the time domain, and
- means for allocating time domain duplex communications in both directions, between the one or more base stations and user equipment of the wireless communications system, in another range of the domain orthogonal to the time domain.
A radio communications system comprising one or more user terminals, one or more radio base stations and one or more control nodes, the one or more control nodes comprising:
- means for allocating, in a domain orthogonal to the time domain, time domain duplex communications in a single direction to/from the one or more base stations from/to the one or more user terminals of the radio communications system in a particular range of the domain orthogonal to the time domain;
- and
- means for allocating time domain duplex communications in both directions between the one or more base stations and the one or more user terminals of the radio communications system in another range of the domain orthogonal to the time domain.
Dependencies are inferred from the claim text.