Method, apparatus, and communications interface for sending and receiving data blocks associated with different multiple access techniques
First Claim
Patent Images
1. A communications method, comprising:
- processing each of multiple user data units into discrete samples, where each user data unit is associated with one of plural different multiple access techniques, where each multiple access technique defines how each of multiple user data units is processed into discrete samples and allocated in a time-frequency plane;
assigning the discrete samples for each user data unit to one or more respective discrete signal blocks; and
grouping together discrete signal blocks containing multiple user data units having different associated multiple access techniques for transmission over a communications channel,wherein the grouping includes grouping discrete signal blocks containing the discrete samples associated with the multiple user data units having different associated multiple access techniques into a time-slot or a packet for transmission over the communications channel.
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Abstract
A unified and flexible signaling method and radio interface accommodate different multiple access schemes, e.g, FDMA, TDMA, CDMA, OFCDM, and IFDMA. Each user data unit is associated with one of several different multiple access techniques that defines how multiple users access communication resources. Each user data unit is processed into discrete samples, where the discrete samples for each user data unit are assigned to one or more respective discrete signal blocks. Discrete samples associated with different multiple access techniques are processed and grouped together into a time slot or packet for transmission over a communication channel.
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Citations
51 Claims
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1. A communications method, comprising:
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processing each of multiple user data units into discrete samples, where each user data unit is associated with one of plural different multiple access techniques, where each multiple access technique defines how each of multiple user data units is processed into discrete samples and allocated in a time-frequency plane; assigning the discrete samples for each user data unit to one or more respective discrete signal blocks; and grouping together discrete signal blocks containing multiple user data units having different associated multiple access techniques for transmission over a communications channel, wherein the grouping includes grouping discrete signal blocks containing the discrete samples associated with the multiple user data units having different associated multiple access techniques into a time-slot or a packet for transmission over the communications channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communications method, comprising:
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receiving over a communications channel a signal containing signals corresponding to multiple user data units each having an associated multiple access technique, where each multiple access technique includes a first part that defines how each of multiple user data units is processed into discrete samples and a second part that defines how processed samples corresponding to each of multiple user data units is allocated in a time-frequency plane; determining a discrete signal block assignment of the multiple access technique associated with each user data unit; according to the determined discrete signal block assignment, extracting from the received signal a segment containing the signals corresponding to one or more desired user data units; sampling the extracted segment to produce a sequence of discrete samples; if necessary, transforming the discrete samples into frequency domain samples; extracting from discrete samples in the frequency domain a sample subset containing the discrete samples corresponding to each desired user data unit according to the discrete signal block assignment of the multiple access technique associated with each desired user data unit; determining the first part of the multiple access technique associated with each user data unit; and processing the samples associated with each user data unit according to the associated multiple access technique to permit user data corresponding to each user data unit to be extracted. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. Apparatus comprising electronic circuitry configured to:
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process each of multiple user data units into discrete samples, user data unit being associated with one of plural different multiple access techniques, where each multiple access technique defines how each of multiple user data units is processed into discrete samples and allocated in a time-frequency plane; assign the discrete time samples for each user data unit to one or more respective discrete signal blocks; and group together discrete signal blocks containing discrete samples associated with user data units having different associated multiple access techniques into a time-slot or a packet for transmission over a communications channel. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. Apparatus for use in an access terminal associated with a user, the access terminal for communicating with a network node along with other access terminals, the apparatus comprising electronic circuitry configured to:
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process one or more user data units into discrete samples, each user data unit being associated with one of plural different multiple access techniques, where each multiple access technique defines how multiple users access a common communications resource; assign the discrete samples for each user data unit to one or more respective discrete signal blocks; and transmit the one or more discrete signal blocks over a communications channel using a portion of that channel. - View Dependent Claims (39, 40)
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41. Apparatus comprising electronic circuitry configured to:
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receive over a communications channel a signal containing signals corresponding to multiple user data units each having a different associated multiple access technique, where each multiple access technique includes a first part that defines how each of multiple user data units is processed into discrete samples and a second part that defines how processed samples corresponding to each of multiple user data units is allocated in a time-frequency plane; determine the discrete signal block assignment of the multiple access technique associated with each user data unit; according to the determined discrete signal block assignment, extract from the received signal a segment containing the signals corresponding to one or more desired user data units; sample the extracted segment to produce a sequence of discrete samples; if necessary, transform the discrete samples into frequency domain samples; extract from discrete samples in the frequency domain a sample subset containing the discrete samples corresponding to each desired user data unit according to the discrete signal block assignment of the multiple access technique associated with each desired user data unit; determine the first part of the multiple access technique associated with each user data unit; and process the samples associated with each user data unit according to the associated multiple access technique to permit user data corresponding to each user data unit to be extracted. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49)
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50. Apparatus, comprising:
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means for processing each of multiple user data units into discrete samples, where each user data unit is associated with one of plural different multiple access techniques, where each multiple access technique defines how each of multiple user data units is processed into discrete samples and allocated in a time-frequency plane; means for assigning the discrete samples for each user data unit to one or more respective discrete signal blocks; means for grouping together discrete signal blocks containing multiple user data units having different associated multiple access techniques for transmission over a communications channel, means for processing user data units into the frequency domain to generate frequency domain samples; and means for transforming the frequency domain samples into the time domain to generate the discrete time samples, wherein the means for processing user data units into the frequency domain includes means for performing a discrete Fourier transform (DFT) of appropriate length on one or more of the user data units, and wherein the means for transforming includes means for performing an inverse discrete Fourier transform (IDFT) of appropriate length of the frequency domain samples. - View Dependent Claims (51)
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Specification