Method and system for management of data transmission in timeslots
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04J-003/00
H04W-004/00
H04J-003/16
H04W-072/00
출원번호
US-0072381
(2011-03-25)
등록번호
US-8798013
(2014-08-05)
발명자
/ 주소
Shah, Maulik K.
Singh, Jasinder P.
Rai, Deveshkumar
Vargantwar, Sachin R.
출원인 / 주소
Sprint Spectrum L.P.
인용정보
피인용 횟수 :
0인용 특허 :
50
초록▼
A method and system is disclosed for managing transmission of data in upcoming timeslots on an air interface. A radio access network detects that in the upcoming timeslots, less than a threshold portion of currently-contending devices are scheduled to receive transmissions, and the radio access netw
A method and system is disclosed for managing transmission of data in upcoming timeslots on an air interface. A radio access network detects that in the upcoming timeslots, less than a threshold portion of currently-contending devices are scheduled to receive transmissions, and the radio access network responsively de-schedules a number of the devices and schedules in their place a greater number of other devices, where the newly scheduled devices have higher forward link data rates than the de-scheduled devices.
대표청구항▼
1. A method for a radio access network (RAN) to manage transmission of data in an upcoming series of timeslots on a forward link air interface from the RAN, wherein the RAN currently has data to transmit to a first number, C, of devices, and wherein the RAN has currently allocated the timeslots for
1. A method for a radio access network (RAN) to manage transmission of data in an upcoming series of timeslots on a forward link air interface from the RAN, wherein the RAN currently has data to transmit to a first number, C, of devices, and wherein the RAN has currently allocated the timeslots for use to carry data to just a second number, N, of those C devices (wherein NR of the C−N unscheduled devices in place of the de-scheduled R devices; andthe RAN transmitting in the timeslots to at least the >R newly scheduled devices. 2. The method of claim 1, wherein determining that N is less than a defined threshold portion of C comprises determining that a ratio N/C is less than a defined threshold. 3. The method of claim 1, wherein each of the C devices currently has a respective forward link data rate, the method further comprising: the RAN selecting the R scheduled devices and the >R unscheduled devices based on forward link data rates of the R scheduled devices and the >R unscheduled devices. 4. The method of claim 3, wherein selecting the R scheduled devices and the >R unscheduled devices based on forward link data rates of the R scheduled devices and the >R unscheduled devices comprises: selecting the >R unscheduled devices such that the forward link data rate respectively of each of the >R unscheduled devices is greater than the forward link data rate of each of the N scheduled devices. 5. The method of claim 4, wherein selecting the >R unscheduled devices such that the forward link data rate respectively of each of the >R unscheduled devices is greater than the forward link data rate of each of the R scheduled devices comprises: determining a highest forward link data rate of the R scheduled devices; andselecting the >R unscheduled devices such that each of the >R unscheduled devices has a forward link data rate greater than the determined highest forward link data rate. 6. The method of claim 3, wherein selecting the R scheduled devices to de-schedule comprises determining, of the N scheduled devices, which R devices the RAN has allocated a greatest number of timeslots to over time, and selecting those determined devices as the R devices. 7. The method of claim 1, further comprising repeating the method for a next upcoming group of timeslots. 8. The method of claim 1, wherein all C of the devices are currently in an active state awaiting data transmission from the RAN. 9. The method of claim 1, carried out by a base transceiver station (BTS) of the RAN. 10. A radio access network (RAN) arranged to manage transmission of data in an upcoming series of timeslots on a forward link air interface from the RAN, the RAN comprising: an antenna arrangement for radiating to define a wireless coverage area having the forward link air interface for carrying transmissions from the RAN;a data buffer for holding data that is to be transmitted by the RAN to devices served by the RAN in the wireless coverage area; andscheduling logic executable by the RAN to schedule data transmission in the upcoming series of timeslots, wherein the scheduling logic causes the RAN to carry out functions comprising: (a) determining that the data buffer currently holds data to transmit to a first number, C, of devices, (b) determining that the RAN has currently scheduled the timeslots for use to carry data to just a second number, N, of those C devices (wherein NR of the C−N unscheduled devices in place of the de-scheduled R devices, and wherein, after carrying out the scheduling-adjustment process, the RAN transmits in the timeslots to at least the >R newly scheduled devices. 11. The RAN of claim 10, wherein the scheduling logic comprises program instructions stored in non-transitory data storage and executable by a processing unit of the RAN. 12. The RAN of claim 10, wherein determining that N is less than a defined threshold portion of C comprises determining that a ratio N/C is less than a defined threshold. 13. The RAN of claim 1, wherein each of the C devices currently has a respective forward link data rate, and wherein the scheduling logic is further executable by the RAN to select the R scheduled devices and the >R unscheduled devices based on forward link data rates of the R scheduled devices and the >R unscheduled devices. 14. The RAN of claim 13, wherein selecting the R scheduled devices and the >R unscheduled devices based on forward link data rates of the R scheduled devices and the >R unscheduled devices comprises: selecting the >R unscheduled devices such that the forward link data rate respectively of each of the >R unscheduled devices is greater than the forward link data rate of each of the R scheduled devices that are being de-scheduled. 15. The RAN of claim 14, wherein selecting the >R unscheduled devices such that the forward link data rate respectively of each of the >R unscheduled devices is greater than the forward link data rate of each of the R scheduled devices that are being de-scheduled comprises: determining a highest forward link data rate of the R scheduled devices that are being de-scheduled; andselecting the >R unscheduled devices such that each of the >R unscheduled devices has a forward link data rate greater than the determined highest forward link data rate. 16. The RAN of claim 13, wherein selecting the R scheduled devices to de-schedule comprises determining, of the N scheduled devices, which R devices the RAN has allocated a greatest number of timeslots to over time, and selecting those determined devices as the R devices. 17. The RAN of claim 10, wherein the scheduling logic is executable to repeat the functions for a next group of timeslots as well. 18. The RAN of claim 10, wherein all C of the devices are currently in an active state awaiting data transmission from the RAN. 19. The RAN of claim 10, further comprising a base transceiver station (BTS), wherein the antenna arrangement, data buffer, and scheduling logic are each part of the BTS.
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