Method and apparatus for wirelessly communicating different information streams

• US 6,791,968 B2
• Filed: 10/24/2002
• Issued: 09/14/2004
• Est. Priority Date: 10/24/2002
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Kotzin, Michael D.
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): HO, CHUONG T
• Application Number:
  US10/279,651
• Publication Number:
  US 20040081134A1
• Time in Patent Office: 691 Days
• Field of Search: 370/329, 370/348, 370/395.21, 370/431, 370/442, 370/443, 370/441, 370/444, 370/351, 370/352, 370/341, 370/342, 370/337, 370/344, 370/347, 370/468, 370/437, 455/450, 455/452.1, 455/452.2, 455/453, 455/455, 455/516, 455/509, 709/227, 709/228, 709/229
• US Class Current: 370/348
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Abstract

A method and apparatus dynamically assigns each of a plurality of different information streams associated with one wireless communication unit (12a), to independent communication resources from different communication resource pools from each of a plurality of different wireless network elements (14a-14n), based on, for example, quality of service requirement data determined for each of the information streams. As such, the wireless communication unit (12a) may establish two or more separate links using two or more completely independent radio resources from different wireless base stations in the same system.

Claims

1. A method for wirelessly communicating a plurality of different information streams having different quality of service requirements over different communication resources between a wireless communication unit and a plurality of wireless network elements each having a limited pool of communication resources for allocation comprising:

receiving a request from the wireless communication unit for a communication resource allocation for each of the plurality of information streams; and

dynamically assigning each of the plurality of information streams associated with the wireless communication unit to independent communication resources from different communication resource pool locations from each of the different wireless network elements.

2. The method of claim 1 including the steps of:

identifying, by the wireless communication unit, quality of service requirement data for each of the plurality of information streams; and

sending the quality of service requirement data for each of the plurality of information streams to at least one of the wireless network elements; and

wherein

dynamically assigning each of the plurality of information streams to independent communication resources from each of the different wireless network elements, is based on the sent quality of service requirement data.

3. The method of claim 1 including the step of sending data representing the independent communication resources to the wireless communication unit.

4. The method of claim 2 wherein the quality of service requirement data is based on at least one of:

an acceptable delay period, an acceptable communication bit rate, an acceptable accuracy level and an information priority level.

5. The method of claim 1 wherein the step of dynamically assigning each of the plurality of information streams associated with the wireless communication unit to independent communication resources from different communication resource pool locations from each of the different wireless network elements includes evaluating at least a plurality of:

available transmit power for one or more wireless network elements, a cell capacity of one or more cells, whether soft hand-off can occur with the wireless communication unit and the plurality of wireless network elements;

a number of CDMA codes available for a wireless network element, a number of FDMA frequencies available, a number of TDMA time slots available a communication link margin, whether an acknowledgment/non-acknowledgement signal can be used and a power control capability of at least one of the wireless communication unit and one of the wireless network elements.

6. The method of claim 2 wherein dynamically assigning each of the plurality of information streams to independent communication resources from each of the different wireless network elements is based on an evaluation of a communication network loading including operation of each of the plurality of wireless network elements and a plurality of wireless communication units communicating with the plurality of wireless network elements.

7. The method of claim 6 dynamically assigning each of the plurality of information streams to independent communication resources from each of the different wireless network elements includes creating an assignment for critical information streams based on quality of service data and creating different assignments for non-critical information streams based on minimum acceptable quality of service data.

8. A method for wirelessly communicating a plurality of different information streams having different quality of service requirements over different communication resources between a wireless communication unit and a plurality of wireless network elements each having a limited pool of communication resources for allocation comprising:

receiving a request from the wireless communication unit for a CDMA communication resource allocation for each of the plurality of information streams;

dynamically assigning each of the plurality of information streams associated with the wireless communication unit to independent CDMA codes from different communication resource pools from each of the different wireless network elements based on quality of service data provided by the wireless communication unit; and

sending data representing the independent CDMA codes to the wireless communication unit for each of the information streams.

9. The method of claim 8 including the step of receiving, by each of the plurality of wireless network elements, a different information stream coded using different CDMA codes from each of respective different communication resource pools, in response to sending data representing the independent CDMA codes to the wireless communication unit for each of the information streams.

10. A wireless network control element for controlling a plurality of different wireless network elements comprising:

a transceiver operatively coupled to receive a request from a wireless communication unit for a communication resource allocation for each of a plurality of information streams; and

a control circuit operatively coupled to the transceiver;

the control circuit operative to dynamically assign each of the plurality of information streams associated with the wireless communication unit to independent communication resources from different communication resource pools from each of a plurality of different wireless network elements based on quality of service requirement data.

11. The wireless network control element of claim 10 wherein the control circuit is operative to evaluate at least a plurality of:

an available transmit power for one or more wireless network elements, a cell capacity of one or more cells;

whether soft hand-off can occur with the wireless communication unit and the plurality of wireless network elements;

a number of CDMA codes available for a wireless network element, a number of FDMA frequencies available;

a number of TDMA time slots available a communication link margin, whether an acknowledgment/nonacknowledgement signal can be used and a power control capability of at least one of the wireless communication unit and one of the wireless network elements.

12. The wireless network control element of claim 10 wherein the control circuit determines communication resource assignment based on an evaluation of a communication network loading including operation of each of the plurality of wireless network elements and a plurality of wireless communication units communicating with the plurality of wireless network elements.

13. The wireless network control element of claim 10 wherein the control circuit determines communication resource assignment by creating an assignment for critical information streams based on quality of service data and creating different assignments for non-critical information streams based on minimum acceptable quality of service data.

14. The wireless network control element of claim 10 wherein the control circuit is comprised of memory and one or more processing devices that executes executable instructions stored in the memory and wherein the executable instructions cause the one or more processing devices to:

dynamically assign each of the plurality of information streams associated with the wireless communication unit to independent communication resources from different communication resource pools from each of a plurality of different wireless network elements based on quality of service data.

15. A wireless communication system comprising:

a wireless communication unit that wirelessly communicates a plurality of different information streams having different quality of service requirements over different communication resources;

a plurality of different wireless network elements in operative communication with the wireless communication unit, each having a limited pool of communication resources for allocation;

a wireless network control element, operatively coupled to the plurality of different wireless network elements, that includes;

a transceiver operatively coupled to receive a request from a wireless communication unit for a communication resource allocation for each of a plurality of information streams; and

a control circuit operatively coupled to the transceiver;

the control circuit operative to dynamically assign each of the plurality of information streams associated with the wireless communication unit to independent communication resources from different communication resource pools from each of a plurality of different wireless network elements based on quality of service requirement data.

16. The system of claim 15 wherein the control circuit is operative to evaluate at least a plurality of:

available transmit power for one or more wireless network elements, a cell capacity of one or more cells, whether soft hand-off can occur with the wireless communication unit and the plurality of wireless network elements;

a number of CDMA codes available for a wireless network element, a number of FDMA frequencies available, a number of TDMA time slots available a communication link margin, whether an acknowledgment/nonacknowledgement signal can be used and a power control capability of at least one of the wireless communication unit and one of the wireless network elements.

17. The system of claim 15 wherein the control circuit determines communication resource assignment by creating an assignment for critical information streams based on quality of service data and creating different assignments for non-critical information streams based on minimum acceptable quality of service data.

18. The system of claim 15 wherein the wireless communication unit is operative to:

identify quality of service requirement data for each of the plurality of information streams; and

send the quality of service requirement data for each of the plurality of information streams to at least one of the wireless network elements.

19. The system of claim 18 wherein the quality of service requirement data is based on at least one of:

an acceptable delay period, an acceptable communication bit rate, an acceptable accuracy level and an information priority level.

20. A method for wirelessly communicating a plurality of different information streams having different quality of service requirements over different communication resources between a wireless communication unit and a plurality of wireless network elements each having a limited pool of communication resources for allocation comprising:

sending a request, by the wireless communication unit, for a communication resource allocation for each of the plurality of information streams; and

receiving, in response to the request, dynamically assigned independent communication resources for each of the plurality of information streams from different communication resource pool locations from each of the different wireless network elements.

21. The method of claim 20 including communicating, by the wireless communication unit, each of the plurality of information streams to different wireless network elements, using the assigned independent communication resource.