TDD time slot splitting
First Claim
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1. A method for use in a cellular communications system, comprising:
- sending the traffic in frames by a transceiver, wherein at least some of said frames including at least one downlink subframe which contains downlink traffic but no uplink traffic, at least one uplink subframe which contains uplink traffic, but no downlink traffic and at least one special subframe, said special subframe comprising the following three parts;
One part which is utilized for downlink traffic,One part which is utilized as a guard period,One part which is utilized for uplink traffic,with said guard period part being scheduled between the downlink and the uplink parts, wherein a total sum of a duration of the downlink part, the guard period and the uplink part constitutes a total subframe length, and wherein the duration of at least two of said three parts may be varied.
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Abstract
The invention discloses a method for a cellular communications system, in which traffic is sent in frames, each frame comprising a first number of subframes, with a second number of said subframes being available for at least either uplink or downlink traffic. At least one of said second number of subframes is made to comprise at least three parts, as follows:
- One part which is utilized for uplink traffic,
- One part which is utilized for downlink traffic,
- One part which is utilized as a guard period,
with said guard period part being scheduled between the uplink and the downlink parts. The duration of at least two of said three parts may be varied to fit the current system need.
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Citations
20 Claims
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1. A method for use in a cellular communications system, comprising:
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sending the traffic in frames by a transceiver, wherein at least some of said frames including at least one downlink subframe which contains downlink traffic but no uplink traffic, at least one uplink subframe which contains uplink traffic, but no downlink traffic and at least one special subframe, said special subframe comprising the following three parts; One part which is utilized for downlink traffic, One part which is utilized as a guard period, One part which is utilized for uplink traffic, with said guard period part being scheduled between the downlink and the uplink parts, wherein a total sum of a duration of the downlink part, the guard period and the uplink part constitutes a total subframe length, and wherein the duration of at least two of said three parts may be varied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18)
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11. A transceiver comprising:
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a transmitter and a receiver, said transmitter and said receiver being configured to send and receive traffic in radio frames, at least some of said radio frames including at least one downlink subframe which contains downlink traffic but no uplink traffic, at least one uplink subframe which contains uplink traffic, but no downlink traffic and at least one special subframe, said special subframe comprising the following three parts; One part which is utilized for downlink traffic, One part which is utilized as a guard period, One part which is utilized for uplink traffic, wherein said guard period part is scheduled between the downlink and the uplink parts, and wherein a total sum of a duration of the downlink part, the guard period and the uplink part constitutes a total subframe length, and wherein the duration of at least two of said three parts may be varied. - View Dependent Claims (12, 13, 14, 15, 16, 19, 20)
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Specification