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

• US 8,494,538 B2
• Filed: 08/09/2012
• Issued: 07/23/2013
• Est. Priority Date: 06/20/1997
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Gorsuch, Thomas E., Amalfitano, Carlo
• Primary Examiner(s): Batista, Marcos
• Application Number:
  US13/571,164
• Publication Number:
  US 20120307804A1
• Time in Patent Office: 348 Days
• Field of Search: 455/452.1
• 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 technique for transmission of wireless signals across CDMA radio links. Bandwidth is allocated dynamically within a session to specific CDMA subscriber unit based upon data rate determinations. Specifically, a dynamic bandwidth allocation algorithm operates from limits calculated based upon available ports per subscriber, expected user bandwidth, and parallel user bandwidth versus throughput. Provisions for priority service, unbalanced forward and reverse spectrum utilization, voice prioritization, and band switching are also made.

Claims

1. A subscriber unit device comprising:

a code division multiple access (CDMA) transceiver and a controller configured, on a condition that the subscriber unit is not granted resources for transmission on additional channels and a queue has data to transmit, to transmit information for use in a base station granting the resources;

the transceiver and controller further configured to transmit information to the base station indicating that the granted resources are not sufficient based on at least the amount of data to transmit in the queue and the granted resources;

the transceiver and controller is further configured to transmit the queued data over a plurality of CDMA code channels based on at least the granted resources; and

the controller further configured, if the subscriber unit device does not transmit data over the plurality of CDMA code channels, to maintain a communication connection between the subscriber unit device and a wireless CDMA network, wherein the code channels are sub-channels.

2. The subscriber unit device of claim 1 wherein the controller is further configured to determine a data rate associated with the data and the transceiver transmits the data over a number of CDMA code channels in response to the determined data rate.

3. A code division multiple access (CDMA) base station 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 code channels are sub-channels,

wherein the control channel is not configured 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.

4. The CDMA base station of claim 3, further comprising a channel multiplexer for multiplexing control and data traffic channels.

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

6. A code division multiple access (CDMA) base station comprising:

a transmitter;

a receiver; and

a controller operable with the receiver 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, wherein the controller manages the number of CDMA codes during the communication session based on an amount of data in a queue.