Inter-access terminal unblocking and enhanced contention for co-existence on a shared communication medium
First Claim
1. A communication method, comprising:
- sending a first scheduling grant to a first access terminal for a first set of resources for uplink transmission on a communication medium;
sending a second scheduling grant to a second access terminal for a second set of resources for uplink transmission on the communication medium;
scheduling a series of re-contention gaps for access terminal contention within or between the first set of resources and the second set of resources, wherein a corresponding schedule of the re-contention gaps is included in at least one of the first or second scheduling grants, and wherein each of the re-contention gaps is less than a sub-frame; and
silencing uplink and downlink transmission on the communication medium during each of the series of re-contention gaps.
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Accused Products
Abstract
Techniques for managing access to a shared communication medium are disclosed. Scheduling grants may be sent to different access terminals for different sets of resources for uplink transmission on the communication medium. A series of re-contention gaps may be scheduled for access terminal contention within or between the different sets of resources. Uplink and downlink transmission on the communication medium may be silenced during each of the series of re-contention gaps. Moreover, an access terminal may receive a scheduling grant that allocates a set of resources to the access terminal for uplink transmission on a communication medium and contend for access to the communication medium based on the scheduling grant. The access terminal may then selectively transmit uplink traffic over the allocated set of resources based on the contending.
34 Citations
32 Claims
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1. A communication method, comprising:
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sending a first scheduling grant to a first access terminal for a first set of resources for uplink transmission on a communication medium; sending a second scheduling grant to a second access terminal for a second set of resources for uplink transmission on the communication medium; scheduling a series of re-contention gaps for access terminal contention within or between the first set of resources and the second set of resources, wherein a corresponding schedule of the re-contention gaps is included in at least one of the first or second scheduling grants, and wherein each of the re-contention gaps is less than a sub-frame; and silencing uplink and downlink transmission on the communication medium during each of the series of re-contention gaps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication apparatus, comprising:
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at least one transceiver configured to send a first scheduling grant to a first access terminal for a first set of resources for uplink transmission on a communication medium and to send a second scheduling grant to a second access terminal for a second set of resources for uplink transmission on the communication medium; at least one processor; and at least one memory coupled to the at least one processor, the at least one processor and the at least one memory being configured to; schedule a series of re-contention gaps for access terminal contention within or between the first set of resources and the second set of resources, wherein a corresponding schedule of the re-contention gaps is included in at least one of the first or second scheduling grants, and wherein each of the re-contention gaps is less than a sub-frame, and silence uplink and downlink transmission on the communication medium during each of the series of re-contention gaps. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A communication method, comprising:
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receiving, at an access terminal from an access point, a first scheduling grant that allocates a set of resources to the access terminal for uplink transmission on a communication medium, wherein the first scheduling grant comprises a plurality of sub-frames reserved for uplink transmission; scheduling a series of re-contention gaps for access terminal contention within the set of resources, wherein a corresponding schedule of the re-contention gaps is included in the first scheduling grant, and wherein each of the re-contention gaps is less than a sub-frame; contending, by the access terminal, for access to the communication medium based on the first scheduling grant; and selectively transmitting, from the access terminal to the access point, uplink traffic over the allocated set of resources based on the contending. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A communication apparatus, comprising:
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at least one transceiver configured to receive, at an access terminal from an access point, a first scheduling grant that allocates a set of resources to the access terminal for uplink transmission on a communication medium, wherein the first scheduling grant comprises a plurality of sub-frames reserved for uplink transmission; the at least one transceiver configured to schedule a series of re-contention gaps for access terminal contention within the set of resources, wherein a corresponding schedule of the re-contention gaps is included in the first scheduling grant, and wherein each of the re-contention gaps is less than a sub-frame; at least one processor; and at least one memory coupled to the at least one processor, the at least one processor and the at least one memory being configured to contend, by the access terminal, for access to the communication medium based on the first scheduling grant, wherein the at least one transceiver is further configured to selectively transmit, from the access terminal to the access point, uplink traffic over the allocated set of resources based on the contending. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method of communication, comprising:
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determining a contention mode for contending for access to a shared communication medium; and contending for access to the shared communication medium in accordance with the contention mode; wherein the contention mode is determined by an access point and comprises aggressive contention in accordance with one or more aggressive contention parameters, autonomous contention by an access terminal in accordance with one or more advanced scheduling grants, or a combination thereof.
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32. A method of communication, comprising:
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determining a grant scheme for contending for access to a shared communication medium; and contending for access to the shared communication medium in accordance with the grant scheme; wherein the grant scheme is determined by an access point and comprises a non-colliding grant scheme in which access terminals are scheduled concurrently, a colliding grant scheme in which access terminals are scheduled with overlapping resources and hierarchically prioritized, or a combination thereof, and periodic re-synchronization gaps.
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Specification