User class provisioning for R-PDCH via a single common rate control sub-channel

• US 20060040674A1
• Filed: 12/31/2004
• Published: 02/23/2006
• Est. Priority Date: 07/29/2004
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Vannithamby, Rath, Chen, Wanshi, Wu, Tao, Yoon, Young C., Tsai, Shiau-He Shawn, Hosein, Patrick A., Soong, Anthony C.K.
• Application Number:
  US11/027,315
• Publication Number:
  US 20060040674A1
• Time in Patent Office: Days
• US Class Current: 455/452.200
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0016 involving special memory structures, e.g. look-up tables
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/566 of the information or information source or recipient

Abstract

Users in a wireless communication system are provisioned into QoS-based classes and rate controlled using a single, per-sector common rate control (CRC) sub-channel. In one or more embodiments, different mobile stations are configured to respond differently to the same CRC commands by provisioning them with different Traffic-to-Pilot Ratio (TPR) tables and/or with different TPR step size adjustment tables. That is, the network can define different classes or groups of mobile stations by sending class or group-specific TPR-related values to the mobile stations belonging to a specific class or group. With this method, the mobile stations in one group can achieve different reverse link data rates, or make more aggressive data rate changes, than those in another group, even though both groups receive the same rate control commands.

Claims

1. A method of user class provisioning for a reverse traffic channel in a wireless communication system including a plurality of mobile stations, comprising:

defining at least two classes of users;

assigning a first user to a first class by transmitting a first predetermined value to the first user'"'"'s mobile station;

assigning a second user to a second class by transmitting a second, different predetermined value to the second user'"'"'s mobile station; and

managing reverse link traffic by issuing per-sector common rate control (CRC) commands, the first user'"'"'s mobile station responding differently to said CRC commands than the second user'"'"'s mobile station in response to said predetermined values.

2. The method of claim 1 wherein said first and second predetermined values are selected from a group consisting of TPR table values and TPR step size table values.

3. The method of claim 2 wherein said first user'"'"'s mobile station increases its data rate on the reverse traffic channel faster than said second user'"'"'s mobile station increases it data rate on the reverse traffic channel in response to UP commands in said CRC commands.

4. The method of claim 2 wherein said first user'"'"'s mobile station increases transmits on the reverse traffic channel at a higher data rate than the second user'"'"'s mobile station, in response to said CRC commands.

5. The method of claim 2 wherein said first user'"'"'s mobile station maintains a data rate on the reverse traffic channel longer than the second user'"'"'s mobile station, in response to DOWN commands in said CRC commands.

6. The method of claim 1 wherein said first and second values are transmitted to the mobile stations via layer 3 signaling.

7. A method of selective group rate control for a reverse traffic channel in a wireless communication system including a plurality of mobile stations, comprising:

transmitting to a select subset of said plurality of mobile stations a predetermined value; and

issuing per-sector common rate control (CRC) commands operative to alter the data rate of said subset of mobile stations differently than the data rate of others of said plurality of mobile stations in response to said predetermined value.

8. The method of claim 7 wherein said predetermined value comprises a TPR table value.

9. The method of claim 7 wherein said predetermined value comprises a TPR step size table value.

10. A wireless communication system, comprising:

a plurality of mobile stations, each including a TPR table and a TPR step size table, and each operative to transmit packet data on a reverse packet data channel (R-PDCH) at a rate dynamically determined by a reverse pilot channel (R-PICH) power and values in said TPR and TPR step size tables; and

at least one base station issuing per-sector common rate control (CRC) commands in at least one sector to control the the R-PDCH data rate of one or more of the mobile stations; and

said base station configured to effect different reverse link rate control command response behaviors between different ones of the mobile stations responding to the CRC commands by altering at least one of said TPR table and TPR step size table values.

11. The wireless communication system of claim 10 wherein said base station alters said TPR table and/or TPR step size table values via Layer 3 signaling commands.

12. A method of determining a data rate for transmitting data on a reverse traffic channel of a mobile station assigned to a user class, comprising:

receiving values for at least one of a TPR step size table and TPR table, said values configured to the user class to which the mobile station is provisioned;

receiving per-sector common rate control (CRC) commands from at least one sector in the active set;

calculating a combined CRC command;

in response to the combined CRC command;

accessing a value in said TPR step size table and calculating a maximum TPR;

in response to the calculated maximum TPR, accessing a value in said TPR table to obtain a maximum data rate, said data rate dependent on said user class configured values; and

transmitting on said reverse traffic channel at said maximum data rate.

13. The method of claim 12 wherein all steps other than receiving configured values are repeated periodically.

14. A of method of effecting different reverse link rate control behaviors among a plurality of mobile stations receiving the same reverse link rate control commands comprising:

storing different configuration values defining different reverse link rate control command response behaviors; and

transmitting different ones of the configuration values to different ones in the plurality of mobile stations.

15. The method of claim 14, wherein storing different configuration values defining different reverse link rate control command response behaviors comprises storing, at an entity in a wireless communication network, different configuration values for different user classes.

16. The method of claim 15, wherein transmitting different ones of the configuration values to different ones in a plurality of mobile stations comprises determining the user class a particular mobile station is associated with, and transmitting the configuration values corresponding to that user class to that particular mobile station.

17. The method of claim 15, wherein the different user classes correspond to different reverse link Quality-of-Service or Grade-of-Service parameters, such that the different configuration values yield differing reverse link performance for mobile stations in different user classes.

18. The method of claim 14, wherein the different configuration values comprise different Traffic-to-Pilot Ratio (TPR) values or different TPR step size adjustment values, said TPR values and TPR step size adjustment values used by said mobile stations to respond to the reverse link rate control commands received by the mobile stations.