Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link

• US 7,583,971 B2
• Filed: 01/23/2004
• Issued: 09/01/2009
• Est. Priority Date: 06/20/1997
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Amalfitano, Carlo, Gorsuch, Thomas E.
• Primary Examiner(s): Nguyen; Duc
• Assistant Examiner(s): CAI, WAYNE HUU
• Application Number:
  US10/764,196
• Publication Number:
  US 20040157617A1
• Time in Patent Office: 2,048 Days
• Field of Search: 455/452.1, 455/450, 455/509, 370/468, 370/335, 370/342, 370/465
• US Class Current: 455/452.1
• CPC Class Codes: H04J 13/16 Code allocation
• CPC Class Codes: H04J 13/18 Allocation of orthogonal codes
• CPC Class Codes: H04L 1/165 Variable formats
• CPC Class Codes: H04Q 11/0428 Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
• CPC Class Codes: H04Q 2213/13098 Mobile subscriber
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13202 Network termination [NT]
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13216 Code signals, frame structure
• CPC Class Codes: H04Q 2213/1327 Release and resetting of connection
• CPC Class Codes: H04Q 2213/13294 CDMA, code division multiplexing, i.e. combinations of H04Q2213/13291 and/or H04Q2213/13292 with space division
• CPC Class Codes: H04Q 2213/13298 Local loop systems, access network
• CPC Class Codes: H04Q 2213/13332 Broadband, CATV, dynamic bandwidth allocation
• CPC Class Codes: H04Q 2213/1336 Synchronisation
• CPC Class Codes: H04Q 2213/13389 LAN, internet
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/0466 the resource being a scrambling code
• CPC Class Codes: H04W 80/00 : Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/042 : Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/14 : WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Abstract

A base station includes a wireless transceiver for establishing a communication session over a first digital communication path, and a bandwidth management module is connected to the wireless transceiver for allocating at least one code channel within the at least one radio frequency channel for exchanging digital signals over the first digital communication path during the communication session. The at least one code channel may include at least one traffic portion that is established for a predetermined time and at least one control portion that is continuously available. The bandwidth management module may reallocate the at least one traffic portion from the first digital communication path to a second digital communication path if an extension of time is not requested from the base station over the first digital communication path for the at least one traffic portion, or if the base station no longer has digital signals to transmit over the first digital communication path via the at least one traffic portion. However, the at least one reallocated traffic portion appears as though it is still continuously available to the first digital communication path.

Claims

1. A code division multiple access (CDMA) user device comprising:

a CDMA transceiver; and

a controller operable with the CDMA transceiver to establish a packet data communication session over a plurality of layers including a physical layer,

the controller being operable with the CDMA transceiver to facilitate use of a data traffic channel and a control channel during the packet data communication session, wherein the data traffic channel and control channel are associated with CDMA codes and the control channel carries information indicative of a data rate associated with the data traffic channel, the data traffic channel including a plurality of code channels, wherein the control channel is not adapted to carry voice or data traffic,

wherein a state of at least one of the layers other than the physical layer is maintained during the packet data communication session after the data traffic channel has been released, and

wherein the controller controls transmission of packet data on a number of code channels, wherein the number of code channels is based on an amount of packet data in a packet data queue.

2. The CDMA user device of claim 1, further comprising a channel multiplexer for multiplexing control and data traffic channels.

3. The CDMA user device of claim 1, wherein the user device is a portable device comprising an integrated unit having a modem, the CDMA transceiver, and the controller.

4. The CDMA user device of claim 1, wherein the CDMA transceiver is operable by the controller to transmit first CDMA signals on a transmission frequency, the transmission frequency being selected by the controller from a plurality of transmission frequencies, the CDMA transceiver also being operable by the controller to receive second CDMA signals on a reception frequency, the reception frequency being selected by the controller from a plurality of reception frequencies.

5. The CDMA user device of claim 1, wherein the CDMA user device further comprises a memory, the memory being configured to store class of service information, the controller being configured to retrieve the class of service information stored in the memory.

6. The CDMA user device of claim 1, wherein the CDMA user device further comprises a memory, the memory being configured to store maximum data rate information associated with the user device, the controller being operable to retrieve the stored maximum data rate information associated with the user device from the memory.

7. The CDMA user device of claim 1, wherein the controller is operable to determine whether to request the data traffic channel further based on an estimated data rate desired to transmit the packet data.

8. The CDMA user device of claim 1, wherein the code channels are sub-channels.

9. A code division multiple access (CDMA) user device comprising:

a transmitter;

a receiver; and

a controller operable with the transmitter and the receiver to establish a communication session over a plurality of layers including a physical layer, wherein the controller facilitates use of a traffic channel to carry data or voice and a control channel to carry only information other than data or voice during the communication session, wherein the traffic channel and the control channel are associated with CDMA codes, wherein a state of at least one of the plurality of layers other than the physical layer is maintained during the communication session after the traffic channel and the control channel have been released, and wherein the controller controls transmissions of data on a number of CDMA codes associated with the traffic channel, wherein the number of CDMA codes is based on an amount of data in a queue.

10. The CDMA user device of claim 9, wherein the CDMA codes associated with the traffic channel are associated with one or more sub-channels.

11. A code division multiple access (CDMA) user device comprising:

a transmitter; and

a controller operable with the transmitter to establish a communication session over a plurality of layers including a physical layer with a base station, wherein the transmitter transmits a control channel that carries control information, wherein the control information only includes information other than data or voice during the communication session, wherein the controller manages, by use of the control channel, a number of CDMA codes during the communication session, and wherein a state of at least one of the plurality of layers other than the physical layer is maintained during the communication session when no data, voice, or said control information is being transmitted by the transmitter.

12. The CDMA user device of claim 11, wherein the controller manages the number of CDMA codes during the communication session based on an amount of data in a queue.

13. The CDMA user device of claim 11, wherein the CDMA codes are associated with sub-channels.