Assigning physical channels of a new user service in a hybrid time division multiple access/code division multiple access communication system

• US 7,072,312 B2
• Filed: 05/14/2001
• Issued: 07/04/2006
• Est. Priority Date: 05/14/2001
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Zeira, Eldad, Zhang, Guodong
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): JAIN, RAJ K
• Application Number:
  US09/854,728
• Publication Number:
  US 20030026234A1
• Time in Patent Office: 1,877 Days
• Field of Search: 370/310, 370/320, 370/321, 370/322, 370/329, 370/330, 370/332, 370/335, 370/336, 370/478, 370/479, 370/480
• US Class Current: 370/321
• CPC Class Codes: H04B 7/2618 using hybrid code-time division multiple access [CDMA-TDMA]
• CPC Class Codes: H04J 13/00 Code division multiplex systems for frequency hopping H04B1/713
• CPC Class Codes: H04J 3/1682 Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

Physical channels of a new user service are to be assigned to a set of time slots in a hybrid time division multiple access/code division multiple access wireless communication system. The new user service physical channels are ordered based on a desired reception quality of each of the new user service physical channels. The new user service physical channels are assigned to the set of time slots based on the order and the time slot sequence.

Claims

1. A method for assigning physical channels of a new user service to a set of time slots in a hybrid wireless time division multiple access/code division multiple access communication system, the method comprising:

providing a time slot sequence of the set of time slots, the time slot sequence being arranged in decreasing order of quality, the quality of a time slot being determined by a figure of merit determined by calculating a difference between a measured interference level of the time slot and a minimum measured interference for all time slots, and an allowed number of physical channels for the provided physical channels in the time slot;

ordering the new user service physical channels based on a dcreasing desired reception quality of each of the new user service physical channels; and

assigning the new user service physical channels to the set of time slots based on the ordering and the time slot sequence.

2. The method of claim 1 wherein the desired reception quality is a required signal to interference ratio.

3. The method of claim 1 wherein the new user service physical channels are physical channels of a coded composite transport channel (CCTrCH).

4. A radio network controller (RNC) for use in a hybrid wireless time division multiple access/code division multiple access communication system, the RNC assigning physical channels of a new user service to a set of time slots, the RNC comprising:

a radio resource management device for providing a time slot sequence of the set of time slots, the time slot sequence being arranged in decreasing order of quality, the quality of a time slot being determined by a figure of merit determined by calculating a difference between a measured interference level of the time slot and a minimum measured interference for all time slots, and an allowed number of physical channels for the provided physical channels in the time slot;

ordering the new user service physical channels based on a decreasing desired reception quality of each of the new user service physical channels; and

assigning the new user service physical channels to the set of time slots based on the ordering and the time slot sequence.

5. The RNC of claim 4 wherein the desired reception quality is a required signal to interference ratio.

6. The RNC of claim 4 wherein the new user service physical channels are physical channels of a coded composite transport channel (CCTrCH).

7. A radio network controller (RNC) for use in a hybrid wireless time division multiple access/code division multiple access communication system, the RNC assigning physical channels of a new user service to a set of time slots, the RNC comprising:

means for providing a time slot sequence of the set of time slots, the time slot sequence being arranged in decreasing order of quality, the quality of a time slot being determined by a figure of merit determined by calculating a difference between a measured interference level of the time slot and a minimum measured interference for all time slots, and an allowed number of physical channels for the provided physical channels in the time slot;

means for ordering the new user service physical channels based on a decreasing desired reception quality of each of the new user service physical channels; and

means for assigning the new user service physical channels to the set of time slots based on the ordering and the time slot sequence.

8. The RNC of claim 7 wherein the desired reception quality is a required signal to interference ratio.

9. The RNC of claim 7 wherein the new user service physical channels are physical channels of a coded composite transport channel (CCTrCH).