Method for using a base station to selectively utilize B and D channels to support a plurality of communications

• US 8,300,607 B2
• Filed: 11/07/2011
• Issued: 10/30/2012
• Est. Priority Date: 06/16/1997
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Ozluturk, Fatih M.
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): Moutaouakil, Mounir
• Application Number:
  US13/290,521
• Publication Number:
  US 20120057549A1
• Time in Patent Office: 358 Days
• Field of Search: 370/335, 370/252, 370/253, 370/328, 370/329, 370/341, 370/342, 370/479, 455/450, 455/455, 455/522, 455/524
• US Class Current: 370/335
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 2201/70703 using multiple or variable rates
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04J 13/16 Code allocation
• CPC Class Codes: H04J 3/16 in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted H04J3/17, H04J3/24 take precedence
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04Q 11/0435 Details
• CPC Class Codes: H04Q 2213/1307 Call setup
• CPC Class Codes: H04Q 2213/13098 Mobile subscriber
• CPC Class Codes: H04Q 2213/13174 Data transmission, file transfer
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13208 Inverse multiplexing, channel bonding, e.g. TSSI aspects
• CPC Class Codes: H04Q 2213/13209 ISDN
• 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 2213/13332 Broadband, CATV, dynamic bandwidth allocation
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/30 : Connection release
• CPC Class Codes: H04W 84/14 : WLL [Wireless Local Loop]; RLL [Radio Local Loop]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/08 : Access point devices

Abstract

A method for using a wireless digital base station to receive, process and transmit a plurality of communications having independent data rates establishing a first communication channel having a first data communication rate to support a first communication; determining the data rate required to support the first communication; selecting one or more transmission channels, from a plurality of available transmission channels, required to support said required data rate; and transmitting the first communication using one or more selected transmission channels. The plurality of available transmission channels includes at least one B or D channel.

Claims

1. A code division multiple access (CDMA) subscriber unit comprising:

an antenna; and

a circuit coupled to the antenna, the circuit being configured to establish channels of predetermined data transmission rates, the circuit being configured to transmit a communication at an initial data rate using at least one of the communication channels;

the circuit being further configured to monitor the communication and determine an adjusted data rate desired for continued support of the communication;

the circuit being further configured to allocate a sufficient number of channels for the communication based on the adjusted data rate, wherein a plurality of power commands are time multiplexed onto a channel using control signaling.

2. The CDMA subscriber unit of claim 1 wherein the channels are allocated such that a sum of the data rates of the allocated channels is at least equal to the adjusted data rate and is not greater than the adjusted data rate plus a predetermined data rate.

3. The CDMA subscriber unit of claim 1 wherein transmission of the communication occurs within the allocated channels.

4. The CDMA subscriber unit of claim 1 further comprising:

the circuit being further configured to dynamically ad or tear down channels for the communication by changing the number of allocated channels during the communication.

5. The CDMA subscriber unit of claim 1 wherein the circuit is further configured to transmit a pilot and a message over an access channel, where the pilot and message transmissions are synchronized, to establish channels of predetermined data transmission rates.

6. The CDMA subscriber unit of claim 1 wherein the allocated channels include at least two channels having different data rates.

7. A method for use by a code division multiple access (CDMA) user terminal, the method comprising:

establishing channels of predetermined data transmission rates; and

transmitting a communication at an initial data rate using at least one of the communication channels;

monitoring the communication and determining an adjusted data rate desired for continued support of the communication; and

allocating a sufficient number of channels for the communication based on the adjusted data rate, wherein a plurality of power commands are time multiplexed onto a channel using control signaling.

8. The method of claim 7 wherein the channels are allocated such that a sum of the data rates of the allocated channels is at least equal to the adjusted data rate and is not greater than the adjusted data rate plus a predetermined data rate.

9. The method of claim 7 wherein the transmitting continues the transmission of the communication within the allocated channels.

10. The method of claim 7 further comprising dynamically adding or tearing down channels for the communication by changing the number of allocated channels during the communication.

11. The method of claim 7 wherein the establishing communication channels transmits a pilot and a message over an access channel where the pilot and message transmissions are synchronized.

12. The method of claim 7 wherein the allocating a sufficient number of channels for the communication includes at least two channels having different data rates.

13. A wireless code division multiple access (CDMA) communication system, the system comprising:

a base station; and

a CDMA subscriber unit including;

an antenna;

a circuit coupled to the antenna, the circuit being configured to establish channels of predetermined data transmission rates, the circuit being configured to transmit a communication at an initial data rate using at least one of the communication channels;

the circuit being further configured to monitor the communication and determine an adjusted data rate desired for continued support of the communication;

the circuit being further configured to allocate a sufficient number of channels for the communication based on the adjusted data rate, wherein a plurality of power commands are time multiplexed onto a channel using control signaling.

14. The system of claim 13 wherein the channels are allocated such that a sum of the data rates of the allocated channels is at least equal to the adjusted data rate and is not greater than the adjusted data rate plus a predetermined data rate.