Method and apparatus for improved throughput in a communication system
First Claim
1. A method for improved throughput in a communication system including a plurality of transmitters and at least one receiver, the method comprising:
- transmitting information from the plurality of transmitters utilising a timeslot re-use scheme in which a timeslot used for transmission varies between the plurality of transmitters and utilising a timeslot-segmented macro diversity scheme in which copies of the same information are transmitted from the plurality of transmitters; and
receiving at the receiver the transmissions from the plurality of transmitters and retrieving the information by at least one of A-B;
A selection among the plurality of received transmissions, and B combination among the plurality of received transmissions.
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Accused Products
Abstract
A scheme for improved throughput in a communication system by combining non-time-coincident macro diversity with timeslot re-use, enabling the benefits of macro diversity to be achieved without substantial impact on the receiver architecture or design. This allows for a significant increase in throughput when transmitting to users close to a cell edge, whilst avoiding any significant increase in UE receiver (900) complexity. It is also extremely beneficial to broadcast services in cellular-like deployments in which large increases in broadcast rate may be achieved whilst maintaining the same broadcast coverage. Preferably, fully non-time-coincident macro-diversity is utilised, but partially-non-time-coincident macro diversity may alternatively be utilised. Preferably, timeslot re-use of order N with macro diversity of order M, where M and N are equal, is utilised, although different values of N and M may alternatively be utilised.
35 Citations
68 Claims
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1. A method for improved throughput in a communication system including a plurality of transmitters and at least one receiver, the method comprising:
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transmitting information from the plurality of transmitters utilising a timeslot re-use scheme in which a timeslot used for transmission varies between the plurality of transmitters and utilising a timeslot-segmented macro diversity scheme in which copies of the same information are transmitted from the plurality of transmitters; and
receiving at the receiver the transmissions from the plurality of transmitters and retrieving the information by at least one of A-B;
A selection among the plurality of received transmissions, and B combination among the plurality of received transmissions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for improving throughput in a communication system including a plurality of transmitters and at least one receiver, the apparatus comprising:
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the plurality of transmitters being operable to transmit information utilising a timeslot re-use scheme in which a timeslot used for transmission varies between the plurality of transmitters and utilising a timeslot-segmented macro diversity scheme in which copies of the same information are transmitted from the plurality of transmitters; and
the at least one receiver being operable to receive the transmissions from the plurality of transmitters and to retrieve the information by at least one of A-B;
A selection among the plurality of received transmissions, and B combination among the plurality of received transmissions.
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33. A user equipment comprising a receiver being operable to
receive transmissions from a plurality of transmitters transmitting information utilising a timeslot re-use scheme in which a timeslot used for transmission varies between the plurality of transmitters and utilising a timeslot-segmented macro diversity scheme in which copies of the same information are transmitted from the plurality of transmitters; - and
retrieve the information by at least one of A-B;
A selection among the plurality of received transmissions, and B combination among the plurality of received transmissions.
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34. A cellular communication system comprising:
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a first number of transmitters arranged to transmit a first version of a signal in a first transmit time interval;
a second number of transmitters arranged to transmit a second version of the signal in a second transmit time interval;
wherein the first and second time intervals are such that the first and second version are received in substantially non-overlapping time intervals at a user equipment. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A user equipment for a cellular communication system comprising:
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means for selecting a first transmitter of a first number of transmitters transmitting a first version of a signal;
means for receiving the first version in a first time interval from the first transmitter;
means for selecting a second transmitter of a second number of transmitters transmitting a second version of a signal;
means for receiving the second version in a second time interval from the second transmitter, the second time interval being substantially non-overlapping with the first time interval; and
means for generating the signal by combining the first and second received version. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. A method of operation in a cellular communication system including a first number of transmitters and a second number of transmitters;
- the method comprising;
the first number of transmitters transmitting a first version of a signal in a first transmit time interval;
the second number of transmitters transmitting a second version of the signal in a second transmit time interval;
wherein the first and second time intervals are such that the first and second version are received in substantially non-overlapping time intervals at a user equipment.
- the method comprising;
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68. A method of operation for a user equipment of a cellular communication system comprising:
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selecting a first transmitter of a first number of transmitters transmitting a first version of a signal;
receiving the first version in a first time interval from the first transmitter;
selecting a second transmitter of a second number of transmitters transmitting a second version of a signal;
receiving the second version in a second time interval from the second transmitter, the second time interval being substantially non-overlapping with the first time interval; and
generating the signal by combining the first and second received version.
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Specification