Dynamic resource allocation in packet data transfer

• US 7,020,105 B2
• Filed: 02/27/2004
• Issued: 03/28/2006
• Est. Priority Date: 04/02/2003
• Status: Active Grant

• Current Assignee: Nitetek Licensing LLC (IP Edge LLC)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Cooper, David Edward
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): MEW, KEVIN D
• Application Number:
  US10/787,258
• Publication Number:
  US 20040223483A1
• Time in Patent Office: 760 Days
• Field of Search: 370/321, 370/324, 370/329, 370/347, 370/458, 370/459, 370/333, 370/442, 370/443, 370/444
• US Class Current: 370/321
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource

Abstract

A method for control of packet data transmissions in a TDMA wireless network to provide for additional choices in the allocation of communication channels. Measurement and recovery periods are re-assigned to avoid conflicts in operating conditions. The re-assignments for the GPRS system may be reduced to a simple formula.

Claims

1. A communication method used in a mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the method comprising:

receiving using a reception slot of the TDMA frame on the downlink after getting ready to receive;

transmitting using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

performing adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein (I) when a number of transmission slots used in one TDMA frame on the uplink is below a predetermined number, then, after transmitting using a transmission slot of the TDMA frame on the uplink, a time allocation of two consecutive slots shall apply for performing adjacent cell signal level measurement and getting ready to receive and (ii) when the number of transmission slots used in one TDMA frame on the uplink is the predetermined number, then, after receiving using a reception slot of the TDMA frame on the downlink, a time allocation of two consecutive slots shall apply for performing adjacent cell signal level measurement and getting ready to transmit.

4. The method according to claim 1, wherein the predetermined number is four.

7. The method according to claim 1, wherein the method is applied to a mobile station of a multislot class 12 in a General Packet Radio System (GPRS).

2. A communication method used in a mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of TDMA frame on a downlink, the method comprising:

receiving using a reception slot of the TDMA frame on the downlink after getting ready to receive;

transmitting using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

performing adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein when a number of transmission slots used in one TDMA frame on the uplink is a predetermined number and when there is not a time of two slots necessary for the adjacent cell signal level measurement and getting ready to receive after a last used transmission slot, then a time allocation of two consecutive slots is provided for performing adjacent cell signal level measurement and getting ready to transmit before a first transmission slot.

5. The method according to claim 2, wherein the predetermined number is four.

8. The method according to claim 2, wherein the method is applied to a mobile station of a multislot class 12 in a General Packet Radio System (GPRS).

3. A communication method used in a mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the method comprising:

receiving using a reception slot of the TDMA frame on the downlink after getting ready to receive;

transmitting using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

performing adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein (I) when a number of transmission slots used in one TDMA frame on the uplink is below a predetermined number, then T_ra and T_tb shall apply, T_ra being a time needed for the mobile station apparatus to perform adjacent cell signal level measurement and get ready to receive and a minimum number of slots of T_ra being two slots, and T_tb being a time needed for the mobile station apparatus to get ready to transmit and a minimum number of slots of T_tb being one slot, and (ii) when the number of transmission slots used in one TDMA frame on the uplink is the predetermined number, then T_ta and T_rb shall apply, T_ta being a time needed for the mobile station apparatus to perform adjacent cell signal level measurement and get ready to transmit_and a minimum number of slots of T_ta being two slots, and T_rb being a time needed for the mobile station apparatus to get ready to receive and a minimum number of slots of T_rb being one slot.

6. The method according to claim 3, wherein the predetermined number is four.

9. The method according to claim 3, wherein the method is applied to a mobile station of a multislot class 12 in a General Packet Radio System (GPRS).

10. A mobile station apparatus which performs communication using a TDMA frame formed by eight slots, start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slob from a start of a TDMA frame on a downlink, the apparatus comprising:

a reception section that receives using a reception slot of the TDMA frame on the downlink after getting ready to receive;

a transmission section that transmits using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

a measurement section that performs adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein (I) when a number of transmission slots used in one TDMA frame on the uplink is below a predetermined number, then, after transmitting using a transmission slot of the TDMA frame on the uplink, a time allocation of two consecutive slots shall apply for performing adjacent cell signal level measurement and getting ready to receive and (ii) when the number of transmission slots used in one TDMA frame on the uplink is the predetermined number, then, after receiving using a reception slot of the TDMA frame on the downlink, a time allocation of two consecutive slots shall apply for performing adjacent cell signal level measurement and getting ready to transmit.

13. The apparatus according to claim 10, wherein the predetermined number is four.

16. The apparatus according to claim 10, wherein the apparatus is a mobile station of multislot class 12 in a General Packet Radio System (GPRS).

11. A mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the apparatus comprising:

a reception section that receives using a reception slot of the TDMA frame on the downlink after getting ready to receive;

a transmission section that transmits using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

a measurement section that performs adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein when a number of transmission slots used in one TDMA frame on the uplink is a predetermined number and when there is not a time of two slots necessary for performing adjacent cell signal level measurement and getting ready to receive after a last used transmission slot, then a time allocation of two consecutive slots is provided for performing adjacent cell signal level measurement and getting ready to transmit before a first transmission slot.

14. The apparatus according to claim 11, wherein the predetermined number is four.

17. The apparatus according to claim 11, wherein the apparatus is a mobile station of a multislot class 12 in a General Packet Radio System (GPRS).

12. A mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the apparatus comprising:

a reception section that receives using a reception slot of the TDMA frame on the downlink after getting ready to receive;

a transmission section that transmits using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

a measurement section that performs adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein (I) when a number of transmission slots used in one TDMA frame on the uplink is below a predetermined number, then T_ra and T_tb shall apply, T_ra being a time needed for the mobile station apparatus to perform adjacent cell signal level measurement and get ready to receive and a minimum number of slots of T_ra being two slots, and T_tb being a time needed for the mobile station apparatus to get ready to transmit and a minimum number of slots of T_tb being one slot, and (ii) when the number of transmission slots used in one TDMA frame on the uplink is the predetermined number, then T_ta and T_rb shall apply, T_ta being a time needed for the mobile station apparatus to perform, adjacent cell signal level measurement and get ready to transmit and a minimum number of slots of T_ta being two slots, and T_rb being a time needed for the mobile station apparatus to get ready to receive and a minimum number of slots of T_rb being one slot.

15. The apparatus according to claim 12, wherein the predetermined number is four.

18. The apparatus according to claim 12, wherein the apparatus is a mobile station of a multisiot class 12 in a General Packet Radio System (GPRS).

19. A communication method used in a mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the method comprising:

receiving using a reception slot of the TDMA frame on the downlink after getting ready to receive;

transmitting using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

performing adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein when a number of transmission slots used in one TDMA frame on the uplink is a predetermined number and when there is a time of less than two slots after a last used transmission slot, then a time allocation of two consecutive slots is provided for performing adjacent cell signal level measurement and getting ready to transmit before a first transmission slot.

21. The method according to claim 19, wherein the predetermined number is four.

22. The method according to claim 19, wherein the method is applied to a mobile station of a multislot class 12 in a General Packet Radio system (GPRS).

20. A mobile station apparatus which performs communication using a TDMA frame formed by eight slots, a start of a TDMA frame on an uplink being delayed by three slots or three slots minus a fraction of a slot from a start of a TDMA frame on a downlink, the apparatus comprising:

a reception section that receives using a reception slot of the TDMA frame on the downlink after getting ready to receive;

a transmission section that transmits using a transmission slot of the TDMA frame on the uplink after getting ready to transmit; and

a measurement section that performs adjacent cell signal level measurement before either getting ready to receive or getting ready to transmit,

wherein when a number of transmission slots used in one TDMA frame on the uplink is a predetermined number and when there is a time of less than two slots after a last used transmission slot, then a time allocation of two consecutive slots is provided for performing adjacent cell signal level measurement and getting ready to transmit before a first transmission slot.

23. The apparatus according to claim 20, wherein the predetermined number is four.

24. The apparatus according to claim 20, wherein the method is applied to a mobile station of a multislot class 12 in a General Packet Radio system (GPRS).