Method and apparatus for distributing processing load for decoding paging messages in a radio communication system

• US 6,553,228 B1
• Filed: 06/26/2000
• Issued: 04/22/2003
• Est. Priority Date: 06/26/2000
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Kotzin, Michael D.
• Primary Examiner(s): Urban, Edward F.
• Assistant Examiner(s): Gesesse, Tilahun
• Application Number:
  US09/603,545
• Time in Patent Office: 1,030 Days
• Field of Search: 455/434, 455/458, 455/574, 455/461, 455/466, 455/511, 455/383, 455/515, 455/415, 455/435, 455/343, 455/426, 455/456, 370/311, 370/337
• US Class Current: 455/434
• CPC Class Codes: H04W 28/0867 among entities in the downlink
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 8/245 from a network towards a terminal
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A method for receiving a radio communication in a radio communication system (100) shares the downlink processing burden among members of a local group of local stations when receiving an alert communication such as a paging channel. The method includes receiving the alert communication (302) at a first mobile station (304) of a plurality of mobile stations (300). The method further includes transmitting a local radio communication (306) from the first mobile station to an intended recipient mobile station (308) of the plurality of mobile stations.

Claims

1. A method for receiving an alert communication from a base station at a radio communication device, the method comprising:

communicating respective identification information for a plurality of radio communication devices to an assigned radio communication device of the plurality of radio communication devices;

receiving the alert communication only at the assigned radio communication device; and

if the alert communication is associated with another radio communication device of the plurality of radio communication devices, communicating information about the alert communication from the assigned radio communication device to the another radio communication device,

wherein the step of communicating information about the alert communication comprises

formatting a message, and

transmitting the message using a local radio communication protocol among the local group.

2. The method of claim 1 further comprising:

if the alert communication is not associated with any radio communication device of the plurality of radio communication devices, discarding the alert communication.

3. The method of claim 1 further comprising:

transmitting to a remote communication device membership of the plurality of communication devices.

4. The method of claim 1 further comprising:

at the radio communication device, comparing intended recipient information of the alert communication with identification information for respective radio communication devices of the plurality of communication devices.

5. The method of claim 4, wherein the step of receiving the alert communication comprises:

receiving a paging message from a base station of a radio communication system;

decoding the paging message to identify an intended recipient;

comparing the intended recipient and the respective identification information for the plurality of radio communication devices; and

based on the comparison, determining if the paging message includes the alert communication associated with any radio communication device of the plurality of radio communication devices.

6. The method of claim 1 wherein the step of receiving comprises:

detecting radio frequency (RF) signals;

demodulating the RF signals to produce received data; and

decoding the received data to extract the alert communication.

7. The method of claim 1, wherein the step of receiving comprises:

detecting radio frequency signals; and

demodulating and decoding the radio frequency signals according to a radio communication protocol.

8. The method of claim 1, wherein the step of receiving the alert communication includes receiving a paging communication.

9. A method for receiving a paging communication at a first radio operable on a mobile radio communication system, the method comprising:

sharing identification information with other radios of a local group of radios;

receiving information about a paging communication intended for the first radio from a second radio assigned by the local group for receiving paging communications for all radios of the local group from a base station, wherein the information comprises a message formatted by the second radio and transmitted by the second radio using a local radio communication protocol among the local group; and

directly communicating with the base station to receive the paging communication.

10. The method of claim 9 wherein sharing identification information comprises:

transmitting the identification information for the first radio using a local radio communication protocol to at least one other radio of the local group; and

receiving respective identification information from at least one other radio of the local group.

11. The method of claim 9 further comprising:

communicating with the other radios to assign the one radio to receive paging communication.

12. The method of claim 9, wherein the step of receiving a paging communication comprises receiving an alert communication.

13. A portable electronic device comprising:

radio means for receiving radio communication; and

control means coupled with the radio means for detecting at least one of paging communication information received by the radio means from a remote radio and intended for a member of a local group of radios including the portable electronic device, and

a local radio communication received by the radio means from another member of the local group and conveying information about received paging communication information received by the other member,

wherein the control means is configured to

communicate respective identification information for the local group of radios to an assigned radio communication device of the local group of radios,

receive an alert communication from a base station only at the assigned radio communication device, and

if the alert communication is associated with another radio communication device of the local group of radios, communicating information about the alert communication from the assigned radio communication device to the another radio communication device,

wherein the step of communicating information about the alert communication comprises

formatting a message, and

transmitting the message using a local radio communication protocol among the local group of radios.

14. The portable electronic device of claim 13 wherein the radio means comprises:

a first radio circuit configurable for two-way radio communication with one or more remote radios; and

a local radio circuit configurable for low power radio communication with other members of the local group.

15. The portable electronic device of claim 14 wherein the first radio circuit comprises:

a receiver and a transmitter each operable in conjunction with a cellular telephone system.

16. The portable electronic device of claim 15 wherein the local radio circuit comprises:

a receiver and a transmitter each operable in conjunction with a local radio communication system.

17. The portable electronic device of claim 16 wherein the receiver and the transmitter are operable according to the a short range wireless communication standard.

18. A method for receiving an alert communication from a base station at a radio communication device, the method comprising:

communicating respective identification information for a plurality of radio communication devices to an assigned radio communication device of the plurality of radio communication devices;

receiving the alert communication only at the assigned radio communication device; and

if the alert communication is associated with another radio communication device of the plurality of radio communication devices, communicating information about the alert communication from the assigned radio communication device to the another radio communication device to prompt the another radio communication device to directly communicate with the base station,

wherein the step of receiving comprises;

detecting radio frequency (RF) signals;

demodulating the RF signals to produce received data; and

decoding the received data to extract the alert communication.

19. A method for receiving an alert communication from a base station at a radio communication device, the method comprising:

communicating respective identification information for a plurality of radio communication devices to an assigned radio communication device of the plurality of radio communication devices;

receiving the alert communication only at the assigned radio communication device;

at the radio communication device, comparing intended recipient information of the alert communication with identification information for respective radio communication devices of the plurality of communication devices; and

if the alert communication is associated with another radio communication device of the plurality of radio communication devices, communicating information about the alert communication from the assigned radio communication device to the another radio communication device to prompt the another radio communication device to directly communicate with the base station;

wherein the step of receiving the alert communication comprises;

receiving a paging message from a base station of a radio communication system,

decoding the paging message to identify an intended recipient,

comparing the intended recipient and the respective identification information for the plurality of radio communication devices, and

based on the comparison, determining if the paging message includes the alert communication associated with any radio communication device of the plurality of radio communication devices.