Method for Efficient Radio Resource Management

• US 20080220792A1
• Filed: 08/28/2006
• Published: 09/11/2008
• Est. Priority Date: 08/30/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Fischer, Patrick
• Granted Patent: US 8,150,411 B2
• Time in Patent Office: Days
• US Class Current: 455/452.2
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

An improved admission control procedure for an admission control entity (e.g., Radio Network Controller (RNC), Node B, etc.) in a network that admits a terminal (mobile station, user equipment, etc.) having a certain receiver performance. Without improperly assuming one receiver performance or referring to a reference minimum receiver performance to calculate the resources that will be used, more accurate radio resources that should be used by the terminal when admitted to the cell can be determined by using appropriate information about the receiver performance of the terminal to be admitted.

Claims

1. A method for performing admission control of a terminal, the method comprising:

sending, to a network, information on at least one receiver performance of the terminal that is different from a minimum receiver performance, to allow the network to perform radio resource management; and

receiving a service from the network that performed radio resource management.

2. The method of claim 1, further comprising:

receiving configuration information from the network; and

configuring a receiver of the terminal for reception of the service using the received configuration information.

3. The method of claim 1, wherein the minimum receiver performance refers to basic characteristics of the receiver of the terminal that are sufficient for reception of the service.

4. The method of claim 1, wherein the minimum receiver performance comprises at least one of an RRC connection request, a cell update, a measurement report, an initial direct transfer including received energy per chip divided by the power density in the band (Ec/No), pathloss, Received Signal Code Power (RSCP), and/or a Received Signal Strength Indicator (RSSI) of the Common Pilot Channel (CPICH) of current cells, neighboring cells or both.

5. The method of claim 1, wherein the information that is different from the minimum receiver performance comprises data related to signaling, receiver category, antennas used by the terminal, receiver algorithm, channel quality, and/or a unique identifier of the terminal.

6. The method of claim 5, wherein the data related to signaling is based on at least one of carrier interference, received energy, power density, power gain, error rate, number of bits, and/or data rate.

7. The method of claim 5, wherein the data related to receiver category is based on a given receiver performance value or range.

8. The method of claim 5, wherein the data related to antennas is based on at least one of a number of antennas, a distance between antennas, a coupling between antennas, and/or a gain value.

9. The method of claim 5, wherein the data related to receiver algorithm is based on a type of algorithm implemented in the terminal.

10. The method of claim 5, wherein the data related to channel quality is based on a Channel Quality Indicator (CQI).

11. The method of claim 5, wherein the data related to the unique identifier is based on a MAC address, an International Mobile Equipment Identity or a terminal model number.

12. A method for performing admission control of a terminal located in a given cell of a cellular network, the method comprising:

receiving, by an admission control entity of the network, information about a receiver performance of the terminal that is different from a minimum receiver performance; and

performing radio resource management by determining radio resources required to provide at least one service to the terminal taking into account the received information.

13. The method of claim 12, further comprising:

storing the received information on the receiver performance in the network.

14. The method of claim 12, wherein the radio resource management is related to at least one of radio admission control, call admission control, radio bearer set-up, and/or radio bearer reconfiguration.

15. The method of claim 12, wherein the radio resource management results in resource optimization.

16. The method of claim 12, wherein the information on receiver performance is included in a measurement control message indicating traffic management or measurements on reception quality, a cell update message, an initial direct transfer message, a direct transfer message or an RRC connection request message or any other message that requires admission control to be performed.

17. The method of claim 12, wherein the receiving step further comprises receiving receiver measurements comprising at least one of an RRC connection request, a cell update, a measurement report, an initial direct transfer including received energy per chip divided by the power density in the band (Ec/No), pathloss, Received Signal Code Power (RSCP), and/or a Received Signal Strength Indicator (RSSI) of the Common Pilot Channel (CPICH) of current cells, neighboring cells or both.

18. A method for performing admission control of a terminal located in a cell of a cellular network, the method comprising:

estimating a network load when the terminal is receiving a service;

comparing the estimated network load with an available network capacity; and

determining whether the terminal should be admitted or not according to the comparing,

wherein at least one actual receiver performance of a terminal is used for estimating the network load.

19. The method of claim 18, wherein the determining step further comprises:

if the available network capacity is sufficient, admitting the terminal;

or

if the available network capacity is insufficient, rejecting the terminal or reducing a current network load in order to admit the terminal.

20. The method of claim 18, wherein the receiver performance is received from the terminal, was previously received in an earlier admission control procedure or received from another admission control entity.

21. The method of claim 18, further comprising:

using a minimum receiver performance related to a radio signal quality of a Common Pilot Channel (CPICH) of current cell, neighboring cells or both.

22. A method to allow a network to perform admission control for a terminal, the method comprising:

sending, to the network, additional data related to receiver performance of the terminal that allows the network to estimate appropriate radio resources needed for the terminal;

receiving configuration information from the network that performed appropriate radio resource allocation for the terminal using the sent additional data; and

configuring a receiver of the terminal using the received configuration information to allow reception of a service provided from the network.

23. The method of claim 22, further comprising:

sending basic data related to a radio signal quality of a Common Pilot Channel (CPICH) of current cell, neighboring cells or both.

24. A network that performs admission control of a mobile terminal located in a given cell of a cellular network, the network comprising:

an admission control entity adapted to receive information about a receiver performance of the mobile terminal that is different from a minimum receiver performance; and

the admission control entity further adapted to perform radio resource management by determining radio resources required to provide at least one service to the mobile terminal taking into account the received information.