Group randomly addressed polling method
First Claim
1. A randomly addressed polling method for a network having a plurality of users and base stations, each base station being capable of conducting an up-link communication and a down-link communication under its coverages with said users, and each user being capable of becoming active when it has a packet to transmit, said randomly addressed polling method comprising the following steps of:
- (a) when a respective base station is ready to conduct said up-link communication, said base station broadcasting a ready message to all users under its coverage;
(b) each user generating at least one random number whenever becoming active;
(c) all active users under the coverage of said base station simultaneously transmitting their random numbers to said base station in response to said ready message;
(d) said base station collecting said random numbers, and polling said active users according to said collected random numbers;
(e) when said base station successfully receives the packet of a respective active user, said base station sending a positive acknowledgment to said active user; and
(f) when said base station unsuccessfully receives the packet of a respective active user, said base station sending a negative acknowledgment to said active user.
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Abstract
A randomly addressed polling (RAP) method for wireless networks is proposed to meet the requirements for wireless LANs which remain open to the research community. The RAP method has the following steps: When a base station is ready to conduct an up-link communication, it broadcasts a ready message to all users under its coverage; each user whenever has a packet to transmit generates a random number; all random numbers are simultaneously transmitted to the base station in response to the ready message; base station collects the random numbers, and polls the active users according to the collected random numbers; and when the base station successfully/unsuccessfully receives the packet from the user, it sends a positive/negative acknowledgment to the user.
130 Citations
23 Claims
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1. A randomly addressed polling method for a network having a plurality of users and base stations, each base station being capable of conducting an up-link communication and a down-link communication under its coverages with said users, and each user being capable of becoming active when it has a packet to transmit, said randomly addressed polling method comprising the following steps of:
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(a) when a respective base station is ready to conduct said up-link communication, said base station broadcasting a ready message to all users under its coverage; (b) each user generating at least one random number whenever becoming active; (c) all active users under the coverage of said base station simultaneously transmitting their random numbers to said base station in response to said ready message; (d) said base station collecting said random numbers, and polling said active users according to said collected random numbers; (e) when said base station successfully receives the packet of a respective active user, said base station sending a positive acknowledgment to said active user; and (f) when said base station unsuccessfully receives the packet of a respective active user, said base station sending a negative acknowledgment to said active user. - 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)
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Specification