Granted Patent B2

US 8,971,892 · App. 13/466,993 · Granted Mar 3, 2015

Abstract

Claims (140)

1. A method in a user equipment configured to perform reselection between cells according to a priority-based reselection (PBR) algorithm using priority information, the method comprising:

receiving an incoming message including priority information;

determining if the received priority information comprises priority information for at least one of: more than 16 UTRAN FDD frequencies, ii) more than 16 UTRAN TDD frequencies, or iii) more than 8 E-UTRAN frequencies; and

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, performing cell reselection without regard to the received priority information.

2. The method as set forth in claim 1 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, deleting dedicated priority information and performing cell reselection using common priority information.

3. The method as set forth in claim 1 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, deleting stored dedicated priority information, and performing cell reselection using common priority information.

4. The method as set forth in claim 1 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, storing and using the received priority information up to at least the defined limits, and without regard to at least one of the received priority information exceeding the defined limits.

5. The method as set forth in claim 1 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, storing and using the received priority information; and

in response to a subsequent determination that the user equipment has selected or reselected from a first cell having a first radio access technology to a second cell having a second radio access technology, one of:

i) deleting the stored received priority information; or

ii) deleting priority information for any frequencies in excess of these limits.

6. The method as set forth in claim 1 , wherein the user equipment is configured to operate in cells using one or more radio access technologies comprising at least one of GSM, UTRAN, or E-UTRAN and wherein the defined limits for the at least one of GSM, UTRAN, or E-UTRAN comprise the limits in the table below:

Current

RAT

Proposed Limit For Storage

Limit on

Up to

GSM

3 x <PRIORITY, ARFCN0, BAND_IND, one of <up to

Priorities

32xARFCN> or <N_ARFCN(max 32), DELTA_ARFCN>

or <Up to 129 of ARFCNs in range ARFCN0, . . . ,

ARFCN0 + 128 inclusive> or <up to 1024 ARFCNs

starting at ARFCN0 and ending at endingARFCN, and

wrapping from 1023 to 0 if necessary>>

or

Single priority allocate to all GSM frequencies

Limit on

Up to

UTRAN

16 x < PRIORITY, UARFCN > for FDD;

Priorities

plus up to

16 x < PRIORITY, UARFCN > for TDD

Limit on

Up to 8 x <PRIORITY, EARFCN>

E-UTRAN

Priorities

Overall

No Additional Limit.

Limit

7. A user equipment comprising:

a controller configured to perform reselection between cells according to a priority-based reselection (PBR) algorithm using priority information;

transceiver circuitry configured to operate in cells using at least one radio access technology and to receive incoming messages including the priority information; and

a memory configured to store the received priority information,

wherein the controller is further configured to determine if the received priority information comprises priority information for at least one of: more than 16 UTRAN FDD frequencies, ii) more than 16 UTRAN TDD frequencies, or iii) more than 8 E-UTRAN frequencies; and

wherein the controller is further configured, in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, to perform cell reselection without regard to the received priority information.

8. The user equipment as set forth in claim 7 , wherein the controller is further configured, in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies:

to delete all dedicated priority information; and

to perform cell reselection using common priority information.

9. The user equipment as set forth in claim 7 , wherein the controller is further configured, in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies:

to delete stored dedicated priority information; and

to perform cell reselection using common priority information.

10. The user equipment as set forth in claim 7 , wherein the controller is further configured, in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies:

to store and to use the received priority information up to the defined limits and without regard to at least one of the received priority information exceeding the defined limits.

11. The user equipment as set forth in claim 7 , wherein the controller is further configured:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, to store and to use the received priority information; and

in response to a subsequent determination that the user equipment has selected or reselected from a first cell having a first radio access technology to a second cell having a second radio access technology, one of:

i) to delete the stored received priority information; or

ii) to delete priority information for any frequencies in excess of these limits.

12. The user equipment as set forth in claim 7 , wherein the at least one radio access technologies comprise at least one of GSM, UTRAN, or E-UTRAN and wherein the defined limits for the at least one of GSM, UTRAN, or E-UTRAN comprise the limits in the table below:

Current

RAT

Proposed Limit For Storage

Limit on

Up to

GSM

3 x <PRIORITY, ARFCN0, BAND_IND, one of <up to

Priorities

32xARFCN> or <N_ARFCN(max 32), DELTA_ARFCN>

or <Up to 129 of ARFCNs in range ARFCN0, . . . ,

ARFCN0 + 128 inclusive> or <up to 1024 ARFCNs

starting at ARFCN0 and ending at endingARFCN, and

wrapping from 1023 to 0 if necessary>>

or

Single priority allowable to all GSM frequencies

Limit on

Up to

UTRAN

16 x < PRIORITY, UARFCN > for FDD;

Priorities

plus up to

16 x < PRIORITY, UARFCN > for TDD

Limit on

Up to 8 x <PRIORITY, EARFCN>

E-UTRAN

Priorities

Overall

No Additional Limit.

Limit

13. A non-transient computer-readable medium containing program instructions for causing a user equipment to perform a method, the user equipment configured to perform reselection between cells according to a priority-based reselection (PBR) algorithm using priority information, the method comprising:

receiving an incoming message including priority information;

determining if the received priority information comprises priority information for at least one of: more than 16 UTRAN FDD frequencies, ii) more than 16 UTRAN TDD frequencies, or iii) more than 8 E-UTRAN frequencies; and

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, performing cell reselection without regard to the received priority information.

14. The non-transient computer-readable medium as set forth in claim 13 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, deleting dedicated priority information and performing cell reselection using common priority information.

15. The non-transient computer-readable medium as set forth in claim 13 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, deleting stored dedicated priority information, and performing cell reselection using common priority information.

16. The non-transient computer-readable medium as set forth in claim 13 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, storing and using the received priority information up to at least the defined limits, and without regard to at least one of the received priority information exceeding the defined limits.

17. The non-transient computer-readable medium as set forth in claim 13 , further comprising:

in response to a determination that the received priority information comprises priority information for more than 16 UTRAN FDD frequencies, or more than 16 UTRAN TDD frequencies, or more than 8 E-UTRAN frequencies, storing and using the received priority information; and

in response to a subsequent determination that the user equipment has selected or reselected from a first cell having a first radio access technology to a second cell having a second radio access technology, one of:

i) deleting the stored received priority information; or

ii) deleting priority information for any frequencies in excess of these limits.

18. The non-transient computer-readable medium as set forth in claim 13 , wherein the user equipment is configured to operate in cells using one or more radio access technologies comprising at least one of GSM, UTRAN, or E-UTRAN and wherein the defined limits for the at least one of GSM, UTRAN, or E-UTRAN comprise the limits in the table below:

Current

RAT

Proposed Limit For Storage

Limit on

Up to

GSM

3 x <PRIORITY, ARFCN0, BAND_IND, one of

Priorities

<up to 32xARFCN> or<N_ARFCN(max 32),

DELTA_ARFCN> or <Up to 129 of ARFCNs

in range ARFCN0, . . ., ARFCN0+128 inclusive>

or<up to 1024 ARFCNs starting at ARFCN0 and ending

at endingARFCN, and wrapping from 1023

to 0 if necessary>>

or

Single priority allocable to all GSM frequencies

Limit on

Up to

UTRAN

16 x <PRIORITY, UARFCN > for FDD;

Priorities

plus up to

16 x <PRIORITY, UARFCN > for TDD

Limit on E-

Up to 8 x <PRIORITY, EARFCN>

UTRAN

Priorities

Overall

No Additional Limit

Limit

Assignments (7)