Communication system capable of reassigning radio receivers

• US 5,371,899 A
• Filed: 05/29/1992
• Issued: 12/06/1994
• Est. Priority Date: 05/29/1992
• Status: Expired due to Term

• Current Assignee: Motorola Mobility, Inc. (Lenovo Group Ltd.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schwendeman, Robert J., Kuznicki, William J.
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): SOBUTKA, PHILIP
• Application Number:
  US07/890,981
• Time in Patent Office: 921 Days
• Field of Search: 455/34.1, 455/38.1, 455/34.2, 455/56.1, 455/70, 455/67.1, 455/54.2, 455/115, 455/226.1, 455/228, 455/38.2-38.4, 370/95.1, 370/95.3, 340/825.44, 340/825.47, 340/825.54, 340/825.03, 340/825.04
• US Class Current: 455/509
• CPC Class Codes: H04W 88/185 Selective call encoders for paging networks, e.g. paging centre devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A radio communication system (100) has radio receivers (106) assigned to a predetermined one of a plurality of time periods (FRAME 0-127). The radio communication system (100) comprises a transmitter (104) that transmits information during the predetermined time period (FRAME 0-127) assigned to at least one radio receiver (106). A receiver (202, 206) receives information directed to said at least one radio receivers (106), the radio receivers (106) being individually assigned to receive information during at least one of a plurality of predetermined time periods (FRAME 0-127). A monitoring device (1702) monitors a level of traffic associated with each of the predetermined time periods (FRAME 0-127) and a measuring device (1704) measures a level of traffic associated with the at least one radio receiver (106) over the assigned predetermined time period (FRAME 0-127). An identifying device (1708) which is coupled to the measuring device (1704) identifies if the level of traffic associated with the at least one radio receiver (106) exceeds a predetermined threshold value during the assigned predetermined time period (FRAME 0-127). A generator (1732) which is coupled to the measuring device (1706) and to the identifying device (1708) generates a control signal, and the transmitter (1736) transmits the control signal to the at least one radio receiver (106) for reassigning the at least one radio receiver (106). The at least one radio receiver (106) comprises a receiver (804) which receives the control signal and a decoder (810) which is coupled to the receiver (804) which decodes the control signal. A reassigning device (1812) which is coupled to the decoder (810) reassigns the radio receiver (106) from the assigned predetermined time period (FRAME 0-127) to another of the plurality of predetermined time periods (FRAME 0-127) having a lower level of traffic value associated therewith for reducing the level of traffic in the assigned predetermined time period (FRAME 0-127).

Claims

1. A radio communication system having radio receivers assigned to a predetermined one of a plurality of predetermined time periods, comprising:

transmitting means for transmitting information during the predetermined one of the plurality of predetermined time periods assigned to at least one radio receiver;

receiving means for receiving information directed to said at least one radio receiver, said at least one radio receiver being individually assigned to receive the information during the predetermined one of the plurality of predetermined time periods;

means for monitoring a level of traffic associated with each of the plurality of predetermined time periods;

means for measuring a level of traffic associated with said at least one radio receiver during the predetermined one of the plurality of predetermined time periods assigned to said at least one selective call receiver;

means, coupled to said measuring means, for identifying if the level of traffic associated with said at least one radio receiver exceeds a predetermined threshold value during the predetermined one of the plurality of predetermined time periods;

means, coupled to said measuring means and to said identifying means, for generating a control signal;

said transmitting means for transmitting the control signal to said at least one radio receiver, said at least one radio receiver comprising;

means for receiving said control signal;

means, coupled to said receiving means, for decoding said control signal; and

reassigning means, coupled to said decoding means, for reassigning said at least one radio receiver from said predetermined one of a plurality of predetermined time periods to another of the plurality of predetermined time periods having a lower level of traffic value associated therewith for reducing the level of traffic in said predetermined one of the plurality of predetermined time periods.

2. The communication system according to claim 1 wherein the plurality of predetermined time periods comprise a plurality of time frames on one or more radio frequencies.

3. The communication system according to claim 2 wherein the plurality of time frames are subdivided into a plurality of phases corresponding to a rate of information transmission.

4. The communication system according to claim 1 wherein the monitoring means further comprising:

means for determining the information transmission time and the idle transmission time of the plurality of predetermined time periods;

means for summing the information transmission time and the idle transmission time; and

means for averaging the information time over the sum of the information transmission time and the idle transmission time.

5. The communication system according to claim 1 wherein the means for reassigning said at least one of the radio receiver to another of the plurality of predetermined time periods includes receiving an over-the-air control signal for reprogramming said at least one radio receiver to receive information on another of the plurality of predetermined time period designated by the control signal.

6. The communication system according to claim 5 wherein said at least one radio receiver includes an acknowledge-back transmitting means for transmitting a response to a request for reassignment, and for responding to a transmitting terminal of the receipt of the control signal for reassigning the radio receiver to another designated predetermined time period.

7. The communication system according to claim 5 wherein the means for reassigning reassigns the at least one radio receiver having a traffic level above the established threshold value.

8. The communication system according to claim 5 wherein the means for reassigning reassigns said at least one radio receiver having a traffic level below the established threshold value.

9. The communication system according to claim 1 wherein the means for reassigning further including:

means for selecting a radio receiver with a traffic level above a threshold value associated with the radio receiver;

means for calculating the traffic level of the predetermined one of the plurality of time periods assigned to the radio receiver being selected without including traffic contribution of the radio receiver being selected;

means for determining another time period for reassigning the radio receiver being selected; and

said means for calculating the traffic level of the determined time period including the traffic contribution of the radio receiver being selected which balances traffic on the plurality of predetermined time periods.

10. In a radio communication system having radio receivers assigned to one of a plurality of predetermined time periods on at least one radio frequency, a method for reassigning the radio receivers, comprising the steps of:

(a) monitoring a level of received information traffic associated with each of the plurality of predetermined time periods for transmitting to at least one of the radio receivers;

(b) measuring a level of traffic associated with one or more radio receivers over one of the plurality of predetermined time periods;

(c) determining if one or more of the radio receivers during the one of the plurality of predetermined time periods have a traffic level above a threshold value; and

(d) reassigning one or more radio receivers to reduce the traffic level of the one of the plurality of predetermined time periods when one or more of the radio receivers have a traffic level above the threshold value.

11. The method for reassigning radio receivers according to claim 10 wherein the step of measuring includes the step of selecting only the radio receivers receiving graphics and alphanumeric type information to be measured.

12. The method for reassigning radio receivers according to claim 10 wherein the step of reassigning radio receivers reassigns the radio receivers having a traffic level below the threshold traffic value.

13. The method for reassigning radio receivers according to claim 10 wherein the step of reassigning, comprises:

(e) transmitting a service request to selected radio receivers to contact the service provider;

(f) waiting a predetermined length of time for a telephone response from a user of the selected radio receiver;

(g) transmitting an over-the-air control signal to the radio receivers of the selected radio receiver that has responded to a reassignment request; and

(h) transmitting a verification signal during the reassigned predetermined time period for confirmation of reassignment of the radio receivers.

14. The method for reassigning radio receivers according to claim 13 wherein step (e) through step (h) communicate with the radio receiver with an acknowledge-back transmitting means for automatically transmitting a response to the request for reassignment.

15. A radio communication system having selective call receivers assigned to a predetermined one of a plurality of time periods, comprising:

a transmitter for transmitting information during the predetermined one of the plurality of time periods assigned to at least one selective call receiver;

a receiver for receiving information directed to said at least one selective call receiver, said at least one selective call receiver being individually assigned to receive the information during the predetermined one of the plurality of time periods;

a microcomputer for monitoring a level of traffic associated with each of the plurality of time periods;

said microcomputer for measuring a level of traffic associated with said at least one selective call receiver over the predetermined one of the plurality of time periods assigned to said at least one selective call receiver;

said microcomputer for identifying if the level of traffic associated with said at least one selective call receiver exceeds a predetermined threshold value during the predetermined one of the plurality of time periods;

said microcomputer also generating a control signal;

said transmitter for transmitting the control signal to said at least one selective call receiver for reassigning said at least one selective call receiver, said at least one selective call receiver comprising;

a receiver for receiving said control signal;

a decoder, coupled to said receiver, for decoding said control signal; and

a microcomputer, coupled to said decoder, for reassigning said at least one selective call receiver from said predetermined one of the plurality of time periods to another of the plurality of time periods having a lower level of traffic value associated therewith for reducing the level of traffic in said predetermined one of the plurality of time periods.