Communication systems
First Claim
1. A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
- transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period, the first transmission signal including specific intermediate apparatus information of the transmitting intermediate apparatus; and
transmitting all of the transmission signals for transmission from said source apparatus and destination apparatus in the particular transmission period, in other transmission windows of the particular transmission period but not in said first transmission window.
1 Assignment
0 Petitions
Accused Products
Abstract
A transmission method for use in a multi-hop wireless communication system is provided. The method includes, for two apparatuses having overlapping transmission coverage areas, one of the two said apparatuses being an intermediate apparatus, transmitting a first transmission signal from a first one of those apparatuses in a first transmission window of a particular transmission interval and transmitting a second transmission signal from the second one of those apparatuses in a second transmission window of the particular transmission interval but not in said first transmission window, so that a communication apparatus located in the coverage areas of both the first and second apparatuses can receive said first transmission signal substantially without interference from said second transmission signal.
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Citations
20 Claims
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1. A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
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transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period, the first transmission signal including specific intermediate apparatus information of the transmitting intermediate apparatus; and transmitting all of the transmission signals for transmission from said source apparatus and destination apparatus in the particular transmission period, in other transmission windows of the particular transmission period but not in said first transmission window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
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transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period; and transmitting a second transmission signal from a second apparatus, corresponding to said source apparatus or another intermediate apparatus of said one or more intermediate apparatuses, in a second transmission window of the particular transmission period but not in said first transmission window, the first apparatus and the second apparatus having overlapping transmission coverage areas, wherein said first transmission signal includes a transmission introduction sequence, said transmission introduction sequence identifying its transmitting apparatus and providing training information.
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17. A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
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transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period; and transmitting a second transmission signal from a second apparatus, corresponding to said source apparatus or another intermediate apparatus of said one or more intermediate apparatuses, in a second transmission window of the particular transmission period but not in said first transmission window, the first apparatus and the second apparatus having overlapping transmission coverage areas, wherein said method further comprising requesting, by said first apparatus, assignment of said first transmission window prior to said particular transmission period.
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18. A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
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transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period; and transmitting a second transmission signal from a second apparatus, corresponding to said source apparatus or another intermediate apparatus of said one or more intermediate apparatuses, in a second transmission window of the particular transmission period but not in said first transmission window, the first apparatus and the second apparatus having overlapping transmission coverage areas, wherein said source apparatus assigns said first transmission window for transmission prior to said particular transmission period.
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19. A multi-hop wireless communication system, comprising:
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a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path; at least one processor configured to define a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period; and a first transmitter configured to transmit a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period, the first transmission signal including specific intermediate apparatus information of the transmitting intermediate apparatus; and a plurality of second transmitters configured to transmit all of the transmission signals for transmission from said source apparatus and destination apparatus in the particular transmission period, in other transmission windows of the particular transmission period but not in said first transmission window.
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20. A suite of computer programs embodied in a non-transitory computer-readable medium and operable, when executed on computing devices of a multi-hop wireless communication system, causes the system to carry out a transmission method, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information in a communication direction along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the one or more intermediate apparatuses, and the one or more intermediate apparatuses being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system using a time-frequency format for transmission during a transmission period, with a plurality of transmission windows being provided within the transmission period, each window occupying a different part, said windows being assignable for transmission in the transmission period, the method comprising:
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transmitting a first transmission signal from a first apparatus, corresponding to one of said one or more intermediate apparatuses, in a first transmission window of a particular transmission period, the first transmission signal including specific intermediate apparatus information of the transmitting intermediate apparatus; and transmitting all of the transmission signals for transmission from said source apparatus and destination apparatus in the particular transmission period, in other transmission windows of the particular transmission period but not in said first transmission window.
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Specification