Extended dynamic resource allocation in packet data transfer
View Patent ↗A method for control of packet data transmissions in a TDMA wireless network to provide for additional choices in the allocation of communication channels. The fixed relationship in the timing of the downlink allocation signalling and subsequent uplink transmission is altered for certain classes of mobile station to avoid physical constraints. Examples of variations in USF signalling in GPRS are given.
1. A multiple access communication method in a network that transmits a USF (Uplink Status Flag) to a mobile station on a downlink slot,
wherein (i) when shifted USF operation is not used then a USF which instructs a mobile station to perform uplink transmission on a first uplink slot is transmitted on a first downlink slot and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink slot is transmitted on a second downlink slot which is different from the first downlink slot.
2. The method according to claim 1 , wherein a USF which instructs the mobile station to perform uplink transmission on a second uplink slot is transmitted on the second downlink slot.
3. The method according to claim 2 , wherein a value of the USF which instructs the mobile station to perform uplink transmission on the first uplink slot is different from a value of the USF which instructs the mobile station to perform uplink transmission on the second uplink slot.
4. The method according to claim 1 , wherein (i) when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the first uplink slot and all higher numbered uplink slots allocated for uplink transmission is transmitted on the first downlink slot and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink slot and said all higher numbered uplink slots allocated for uplink transmission is transmitted on the second downlink slot.
5. The method according to claim 1 , wherein the second downlink slot is the next numbered downlink slot of the first downlink slot.
6. The method according to claim 1 , wherein when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the nth (n being an integer) uplink slot and all higher numbered uplink slots allocated for uplink transmission is transmitted on the nth downlink slot.
7. A multiple access communication method in a network that transmits a USF to a mobile station on a downlink PDCH (Packet Data Channel),
wherein (i) when shifted USF operation is not used, then a USF which instructs a mobile station to perform uplink transmission on a first uplink PDCH is transmitted on a first downlink PDCH and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH is transmitted on a second downlink PDCH which is different from the first downlink PDCH.
8. The method according to claim 7 , wherein a USF which instructs the mobile station to perform uplink transmission on a second uplink PDCH is transmitted on the second downlink PDCH.
9. The method according to claim 8 , wherein a value of the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH is different from a value of the USF which instructs the mobile station to perform uplink transmission on the second uplink PDCH.
10. The method according to claim 7 , wherein (i) when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH and all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the first downlink PDCH and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH and said all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the second downlink PDCH.
11. The method according to claim 7 , wherein the second downlink PDCH is the next numbered downlink PDCH of the first downlink PDCH.
12. The method according to claim 7 , wherein when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the nth (n being an integer) uplink PDCH and all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the nth downlink packet data channel.
13. The method according to claim 1 , wherein eight consecutive slots form a TDMA, frame.
14. The method according to claim 1 , wherein the mobile station performs transmission on the next transmission frame or consecutive group of transmission frames if the USF is detected.
15. The method according to claim 13 , wherein the start of a TDMA frame on the uplink is delayed by three slots minus a fraction of a slot from the start of a TDMA frame on the downlink.
16. The method according to claim 1 , wherein the mobile station performs adjacent cell signal level measurement and preparation for reception prior to re-configuration from transmission to reception.
17. The method according to claim 16 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.
18. The method according to claim 16 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.
19. The method according to claim 16 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot and 31 symbol periods timing advance offset.
20. The method according to claim 1 , wherein the mobile station performs adjacent cell signal level measurement and preparation for transmission prior to re-configuration from reception to transmission, and wherein the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.
21. The method according to claim 17 , wherein shifted USF operation is used if three slots are allocated for the uplink transmission per one uplink TDMA frame.
22. The method according to claim 18 , wherein shifted USF operation is used if five slots are allocated for the uplink transmission per one uplink TDMA frame.
23. The method according to claim 19 , wherein shifted USF operation is used if five slots are allocated for the uplink transmission per one uplink TDMA frame.
24. The method according to claim 20 , wherein shifted USF operation is used if six slots are allocated for the uplink transmission per one uplink TDMA frame.
25. The method according to claim 21 , wherein an indication indicating the use of shifted USF operation is automatically done.
26. The method according to claim 22 , wherein an indication indicating the use of shifted USF operation is automatically done.
27. The method according to claim 23 , wherein an indication indicating the use of shifted USF operation is automatically done.
28. The method according to claim 24 , wherein an indication indicating the use of shifted USF operation is automatically done.
29. The method according to claim 1 , wherein a number of multislot class of the mobile station is any one of multislot classes 7, 34, 39 and 45.
30. The method according to claim 7 , wherein a number of multislot class of the mobile station is any one of multislot classes 7, 34, 39 and 45.
31. A network apparatus that transmits a USF to a mobile station on a downlink slot,
wherein (i) when shifted USF operation is not used, then a USF which instructs a mobile station to perform uplink transmission on a first uplink slot is transmitted on a first downlink slot and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink slot is transmitted on a second downlink slot which is different from said first downlink slot.
32. The apparatus according to claim 31 , wherein a USF which instructs the mobile station to perform uplink transmission on a second uplink slot is transmitted on the second downlink slot.
33. The apparatus according to claim 32 , wherein a value of the USF which instructs the mobile station to perform uplink transmission on the first uplink slot is different from a value of the USF which instructs the mobile station to perform uplink transmission on the second uplink slot.
34. The apparatus according to claim 31 , wherein (i) when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the first uplink slot and all higher numbered uplink slots allocated for uplink transmission is transmitted on the first downlink slot and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission the first uplink slot and said all higher numbered uplink slots allocated for uplink transmission is transmitted on the second downlink slot.
35. The apparatus according to claim 31 , wherein the second downlink slot is the next numbered downlink slot of the first downlink slot.
36. The apparatus according to claim 31 , wherein when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the nth (n being an integer) uplink slot and all higher numbered uplink slots allocated for uplink transmission is transmitted on the nth downlink slot.
37. A network apparatus that transmits a USF to a mobile station on a downlink PDCH,
wherein (i) when shifted USF operation is not used, then a USF which instructs a mobile station to perform uplink transmission on a first uplink PDCH is transmitted on a first downlink PDCH and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH is transmitted on a second downlink PDCH which is different from said first downlink PDCH.
38. The apparatus according to claim 37 , wherein a USF which instructs the mobile station to perform uplink transmission on a second uplink PDCH is transmitted on the second downlink PDCH.
39. The apparatus according to claim 38 , wherein a value of the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH is different from a value of the USF which instructs the mobile station to perform uplink transmission on the second uplink PDCH.
40. The apparatus according to claim 37 , wherein (i) when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH and all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the first downlink PDCH and (ii) when the shifted USF operation is used, then the USF which instructs the mobile station to perform uplink transmission on the first uplink PDCH and all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the second downlink PDCH.
41. The apparatus according to claim 37 , wherein the second downlink PDCH is the next numbered downlink PDCH of the first downlink PDCH.
42. The apparatus according to claim 37 , wherein when the shifted USF operation is not used, then a USF which instructs the mobile station to perform uplink transmission on the nth (n being an integer) uplink PDCH and all higher numbered uplink PDCHs assigned for uplink transmission is transmitted on the nth downlink PDCH.
43. The apparatus according to claim 31 , wherein eight consecutive slots form a TDMA frame.
44. The apparatus according to claim 31 , wherein the mobile station performs transmission on the next transmission frame or consecutive group of transmission frames if the USF is detected.
45. The apparatus according to claim 43 , wherein the start of a TDMA frame on the uplink is delayed by three slots minus a fraction of a slot from the start of a TDMA frame on the downlink.
46. The apparatus according to claim 31 , wherein the mobile station performs adjacent cell signal level measurement and preparation for reception prior to reconfiguration from transmission to reception.
47. The apparatus according to claim 46 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.
48. The apparatus according to claim 46 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.
49. The apparatus according to claim 46 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot and 31 symbol periods timing advance offset.
50. The method according to claim 31 , wherein the mobile station performs adjacent cell signal level measurement and preparation for transmission prior to reconfiguration from reception to transmission, and wherein the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.
51. The apparatus according to claim 47 , wherein shifted USF operation is used if three slots are allocated for the uplink transmission per one uplink TDMA frame.
52. The apparatus according to claim 48 , wherein shifted USF operation is used if five slots are allocated for the uplink transmission per one uplink TDMA frame.
53. The apparatus according to claim 49 , wherein shifted USF operation is used if five slots are allocated for the uplink transmission per one uplink TDMA frame.
54. The apparatus according to claim 50 , wherein shifted USF operation is used if six slots are allocated for the uplink transmission per one uplink TDMA frame.
55. The apparatus according to claim 51 , wherein an indication indicating the use of shifted USF operation is automatically done.
56. The apparatus according to claim 52 , wherein an indication indicating the use of shifted USF operation is automatically done.
57. The apparatus according to claim 53 , wherein an indication indicating the use of shifted USF operation is automatically done.
58. The apparatus according to claim 54 , wherein an indication indicating the use of shifted USF operation is automatically done.
59. The apparatus according to claim 31 , wherein a number of multislot class of the mobile station is any one of multislot classes 7, 34, 39 and 45.
60. The apparatus according to claims 37 , wherein a number of multislot class of the mobile station is any one of multislot classes 7, 34, 39 and, 45.