| 主权项 |
1. A system comprising:
an access point configured for receiving signals from one or more remotes, and configured for transmitting signals comprising contention frames, contention grants, and data frames, wherein the one or more remotes comprise a first remote configured for receiving signals, and configured for transmitting signals comprising contention requests and data frames, wherein the first remote is configured for transmitting one of the contention requests within a selected period of time after receiving one of the contention frames from the access point, wherein the access point is configured for transmitting one of the contention grants to the first remote in response to receiving said one of the contention requests from the first remote, wherein the first remote is configured for transmitting one of the data frames after receiving said one of the contention grants from the access point, wherein the access point is configured for transmitting one of the contention grants to the first remote in response to receiving said one of the contention requests from the first remote, wherein said one of the contention frames from the access point comprises information that defines a subsequent contention period divided into a plurality of time slots, and wherein said one of the remotes having a pending data frame is configured to select one of the time slots in which to transmit a contention request in response to receiving said one of the contention frames from the access point, and wherein a second contention frame transmitted by the access point subsequent to said one of the contention frames comprises a larger number of slots than said one of the contention frames, a larger slot size than said one of the contention frames, or a combination thereof, in response to a number of slots selected by the one or more remotes in said one of the contention frames exceeding a preselected threshold. |
