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 mobile station, comprising the steps of:
monitoring a downlink slot to detect a USF (Uplink Status Flag); and
transmitting on an uplink slot corresponding to the USF,
wherein (i) if shifted USF operation is not used then a first downlink slot is monitored to detect a USF corresponding to a first uplink slot and (ii) if the shifted USF operation is used then a second downlink slot is monitored to detect the USF corresponding to the first uplink slot and a USF corresponding to a second uplink slot.
2. The method according to claim 1 , wherein if the USF corresponding to the first uplink slot is detected on the second downlink slot then the transmitting is performed on the first uplink slot and all higher numbered uplink slots allocated for uplink transmission.
3. The method according to claim 1 , wherein the second downlink slot is the next numbered downlink slot of the first downlink slot.
4. The method according to claim 1 , wherein a value of the USF corresponding to the first uplink slot is different from a value of the USF corresponding to the second uplink slot.
5. A multiple access communication method in a mobile station, comprising the steps of:
receiving an assignment of at least a first PDCH (packet data channel) and a second PDCH;
monitoring an assigned PDCH to detect a USF; and
transmitting on an assigned PDCH corresponding to the USF,
wherein (i) if shifted USF operation is not used then a first assigned PDCH is monitored to detect a USF corresponding to the first assigned PDCH and (ii) if the shifted USF operation is used then a second assigned PDCH is monitored to detect the USF corresponding to the first assigned PDCH and a USF corresponding to the second assigned PDCH.
6. The method according to claim 5 , wherein if the USF corresponding to the first assigned PDCH is detected on the second assigned PDCH then the transmitting is performed on the first assigned PDCH and all higher numbered assigned PDCHs.
7. The method according to claim 5 , wherein the second assigned PDCH is the next numbered PDCH of the first assigned PDCH.
8. The method according to claim 5 , wherein a value of the USF corresponding to the first assigned PDCH is different from a value of the USF corresponding to the second assigned PDCH.
9. A multiple access communication method in a mobile station, comprising the steps of:
receiving an assignment of at least a first PDCH and a second PDCH,
monitoring a second assigned PDCH to detect a USF corresponding to a first assigned PDCH and a USF corresponding to the second assigned PDCH; and
if the USF corresponding to the first assigned PDCH is detected then transmitting on the first assigned PDCH and all higher numbered assigned PDCHs.
10. The method according to claim 9 , wherein if the USF corresponding to the second assigned PDCH is detected on the second assigned PDCH then the transmitting is performed on the second assigned PDCH and all higher numbered assigned PDCHs.
11. The method according to claim 9 , wherein the second assigned PDCH is the next numbered PDCH of the first assigned PDCH.
12. The method according to claim 9 , wherein a value of the USF corresponding to the first assigned PDCH is different from a value of the USF corresponding to the second assigned PDCH.
13. The method according to claim 1 , wherein if a USF corresponding to a nth (n being an integer) uplink slot is detected on a nth downlink slot then the transmitting is performed on the nth uplink slot.
14. The method according to claim 13 , wherein if the USF corresponding to the nth uplink slot is detected on the nth downlink slot then the transmitting is performed on the nth uplink slot and all higher numbered uplink slots allocated for uplink transmission.
15. The method according to claim 1 , wherein the transmitting is performed on the next transmission frame or consecutive group of transmission frames.
16. The method according to claim 1 , wherein eight consecutive slots form a TDMA frame.
17. The according to claim 16 , wherein the start of a TDMA frame on the uplink is delayed by three slots or three slots minus a fraction of a slot from the start of a TDMA frame on the downlink.
18. The method according to claim 17 , further comprising the step of performing adjacent cell signal level measurement and preparation for reception prior to re-configuration from transmission to reception.
19. The method according to claim 18 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.
20. The method according to claim 18 , wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.
21. The method according to claim 18 , 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.
22. The method, according to claim 17 , further comprising the step of performing adjacent cell signal level measurement and preparation for transmission prior to re-configuration from reception to transmission, wherein the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.
23. The method according to claim 19 , wherein the use of shifted USF operation is indicated if three slots are allocated for the uplink transmission in the TDMA frame on the uplink.
24. The method according to claim 21 , wherein the use of shifted USF operation is indicated if five slots are allocated for the uplink transmission in the TDMA frame on the uplink.
25. The method according to claim 21 , wherein the use of shifted USF operation is indicated if five slots are allocated for the uplink transmission in the TDMA frame on the uplink.
26. The method according to claim 22 , wherein the use of shifted USF operation is indicated if six slots are allocated for the uplink transmission in the TDMA frame on the uplink.
27. The method according to claim 23 , wherein the indication to use shifted USF operation is automatically done.
28. The method according to claim 24 , wherein the indication to use shifted USF operation is automatically done.
29. The method according to claim 25 , wherein the indication to use shifted USF operation is automatically done.
30. The method according to claim 26 , wherein the indication to use shifted USF operation is automatically done.
31. The method according to claim 1 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
32. The method according to claim 5 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
33. The method according to claim 9 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
34. A mobile station apparatus for multiple access communication, comprising:
a detection section that monitors a downlink slot to detect a USF; and
a transmission section that transmits on an uplink slot corresponding to the USF,
wherein (i) if shifted USF operation is not used then the detection section monitors a first downlink slot to detect a USF corresponding to a first uplink slot and (ii) if the shifted USF operation is used then the detection section monitors a second downlink slot to detect the USF corresponding to the first uplink slot and a USF corresponding to a second uplink slot.
35. The apparatus according to claim 34 , wherein if the USF corresponding to the first uplink slot is detected on the second downlink slot then the transmission section transmits on the first uplink slot and all higher numbered uplink slots allocated for uplink transmission.
36. The apparatus according to claim 34 , wherein the second downlink slot is the next numbered downlink slot of the first downlink slot.
37. The apparatus according to claim 34 , wherein a value of the USF corresponding to the first uplink slot is different from a value of the USF corresponding to the second uplink slot.
38. A mobile station apparatus for multiple access communication, comprising:
a reception section that receives an assignment of at least a first PDCH and a second PDCH;
a detection section that monitors an assigned PDCH to detect a USF; and
a transmission section that transmits on an assigned PDCH corresponding to the USF,
wherein (i) if shifted USF operation is not used then a first assigned PDCH is monitored to detect a USF corresponding to the first assigned PDCH and (ii) if the shifted USF operation is used then a second assigned PDCH is monitored to detect the USF corresponding to the first assigned PDCH and a USF corresponding to the second assigned PDCH.
39. The apparatus according to claim 38 , wherein if the USF corresponding to the first assigned PDCH is detected on the second assigned PDCH then the transmission section transmits on the first assigned PDCH and all higher numbered assigned PDCHs.
40. The apparatus according to claim 38 , wherein the second assigned PDCH is the next numbered PDCH of the first assigned PDCH.
41. The apparatus according to claim 38 , wherein a value of the USF corresponding to the first assigned PDCH is different from a value of the USF corresponding to the second assigned PDCH.
42. A mobile station apparatus for multiple access communication, comprising:
a reception section that receives an assignment of at least a first PDCH and a second PDCH;
a detection section that monitors a second assigned PDCH to detect a USF corresponding to a first assigned PDCH and a USF corresponding to the second assigned PDCH; and
a transmission section that transmits on the first assigned PDCH and all higher numbered assigned PDCHs if the USF corresponding to the first assigned PDCH is detected on the second assigned PDCH.
43. The apparatus according to claim 42 , wherein if the USF corresponding to the second assigned PDCH is detected on the second assigned PDCH then the transmission section transmits on the second assigned PDCH and all higher numbered assigned PDCHs.
44. The apparatus according to claim 42 , wherein the second assigned PDCH is the next numbered PDCH of the first assigned PDCH.
45. The apparatus according to claim 42 , wherein a value of the USF corresponding to the first assigned PDCH is different from a value of the USF corresponding to the second assigned PDCH.
46. The apparatus according to claim 34 , wherein a USF corresponding to a nth (n being an integer) uplink slot is detected on a nth downlink slot then the transmission section transmits on the nth uplink slot.
47. The apparatus according to claim 46 , wherein if the USF corresponding to the nth uplink slot is detected on the nth downlink slot then the transmission section transmits on the nth uplink slot and all higher numbered uplink slots allocated for uplink transmission.
48. The apparatus according to claim 34 , wherein the transmission section transmits on the next transmission frame or consecutive group of transmission frames.
49. The apparatus according to claim 34 , wherein eight consecutive slots form a TDMA frame.
50. The apparatus according to claim 49 , wherein the start of a TDMA frame on the uplink is delayed by three slots or three slots minus a fraction of a slot from the start of a TDMA frame on the downlink.
51. The apparatus according to claim 50 , further comprising a measurement section that performs adjacent cell signal level measurement prior to re-configuration from transmission to reception or prior to re-configuration from reception to transmission.
52. The apparatus according to claim 51 , wherein the measurement section performs adjacent cell signal level measurement prior to re-configuration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.
53. The apparatus according to claim 51 , wherein the measurement section performs adjacent cell signal level measurement prior to re-configuration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.
54. The apparatus according to claim 51 , wherein the measurement section performs adjacent cell signal level measurement prior to re-configuration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot and 31 symbol periods timing advance offset.
55. The apparatus according to claim 51 , wherein the measurement section performs adjacent cell signal level measurement prior to re-configuration from reception to transmission and the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.
56. The apparatus according to claim 52 , wherein the use of shifted USF operation is indicated if three slots are allocated for the uplink transmission in the TDMA frame on the uplink.
57. The apparatus according to claim 53 , wherein the use of shifted USF operation is indicated if five slots are allocated for the uplink transmission in the frame on the uplink.
58. The apparatus according to claim 54 , wherein the use of shifted USF operation is indicated if five slots are allocated for the uplink transmission in the TDMA frame on the uplink.
59. The apparatus according to claim 55 , wherein the use of shifted USF operation is indicated if six slots are allocated for the uplink transmission in the TDMA frame on the uplink.
60. The apparatus according to claim 56 , wherein the indication to use shifted USF operation is automatically done.
61. The apparatus according to claim 57 , wherein the indication to use shifted USF operation is automatically done.
62. The apparatus according to claim 58 , wherein the indication to use shifted USF operation is automatically done.
63. The apparatus according to claim 59 , wherein the indication to use shifted USF operation is automatically done.
64. The apparatus according to claim 34 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
65. The apparatus according to claim 38 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
66. The apparatus according to claim 42 , wherein the number of multislot class of the mobile station is any one of the multislot classes 7, 34, 39 and 45.
67. A multiple access communication system having a mobile station and a network, wherein the network transmits USF on a downlink slot to the mobile station, the mobile station comprising:
a detection section that monitors a downlink slot to detect the USF; and
a transmission section that transmits on an uplink slot corresponding to the USF,
wherein (i) if shifted USF operation is not used then the detection section monitors a first downlink slot to detect a USF corresponding to a first uplink slot and (ii) if the shifted USF operation is used then the detection section monitors a second downlink slot to detect the USF corresponding to the first uplink slot and, a USF corresponding to a second uplink slot.