Hybrid transmission method for wireless communications
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04J-003/00
H04B-007/212
H04B-007/216
출원번호
US-0982317
(2001-10-18)
등록번호
US-8289933
(2012-10-16)
발명자
/ 주소
Das, Arnab
Khan, Farooq Ullah
출원인 / 주소
Alcatel Lucent
대리인 / 주소
Capitol Patent & Trademark Law Firm, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
16
초록▼
A method is described for transmitting information in a communication channel of a wireless communication system in which the communication channel is divided into a plurality of time slots of equal duration and each of the time slots is further sub-divided into multiple sub-slots or resource units.
A method is described for transmitting information in a communication channel of a wireless communication system in which the communication channel is divided into a plurality of time slots of equal duration and each of the time slots is further sub-divided into multiple sub-slots or resource units. In one illustrative embodiment, the communication channel is divided into time slots according to a time division multiple access scheme. Each time slot is then further code-multiplexed into one or more sub-slots according to a code division multiple access scheme. Each of the sub-slots is therefore capable of carrying a separately coded transmission within the communication channel so that multiple simultaneous transmissions can occur in any given time slot.
대표청구항▼
1. A method for transmitting information in a wireless communication system, the method comprising: dividing a data communication channel into a plurality of time slots of equal duration;sub-dividing, on other than a time division basis, each of the plurality of time slots to comprise two or more su
1. A method for transmitting information in a wireless communication system, the method comprising: dividing a data communication channel into a plurality of time slots of equal duration;sub-dividing, on other than a time division basis, each of the plurality of time slots to comprise two or more sub-slots, andtransmitting a plurality of transmissions, each of the transmissions corresponding to a separate transmission of a single user of a wireless communication system and each comprising a number of contiguous sub-slots associated with at least two time slots, where the number of subslots may vary from timeslot to timeslot within each transmission; andtransmitting a separate, different control channel for each transmission,wherein the duration of each separate control channel is dependent upon the number of transmitted sub-slots. 2. The method according to claim 1, wherein each of the two or more contiguous sub-slots is separately transmitted according to a code division multiple access scheme. 3. The method according to claim 2 wherein, in any one of the plurality of time slots, each of a plurality of transmissions are separately coded and carried in a separate sub-slot simultaneously in such time slot. 4. The method according to claim 3 wherein each at least one of the plurality of transmissions corresponds to a separate user of the wireless communication system. 5. The method according to claim 1, wherein each of the two or more sub-slots within a particular time slot corresponds to a different frequency according to a frequency division multiple access scheme. 6. The method according to claim 1, wherein the communication channel comprises time slots each having a duration of 1.25 milliseconds and wherein each of the time slots comprises at least two sub-slots. 7. The method according to claim 1, wherein the communication channel is a forward packet data channel (F-PDCH), wherein information is transmitted as encoder packets in the forward packet data channel (F-PDCH), and wherein the separate control channel is a forward secondary packet data control channel (SPDCCH). 8. The method according to claim 7, wherein the forward secondary packet data control channel (SPDCCH) includes: a sub-slot start field for identifying a sub-slot within a time slot in which a particular transmission starts; anda sub-slot count field for identifying the total number of sub-slots that carry the particular transmission. 9. The method according to claim 7, wherein a plurality of forward secondary packet data control channels (SPDCCH) correspond to a plurality of simultaneous transmissions on the forward packet data channel (F-PDCH), and wherein each of the plurality of secondary packet data control channels (SPDCCH) identifies a sub-slot start position within a time slot in which a particular transmission starts. 10. The method according to claim 1, wherein bandwidth in the communication channel is allocated on a fractional basis to carry a plurality of transmissions using a combination of a variable number of contiguous sub-slots and a variable number of contagious time slots. 11. The method according to claim 1, wherein transmissions within the communication channel include two or more transmissions selected from the group consisting of new transmissions, retransmissions, acknowledgements (ACKs), negative acknowledgements (NACKs), and multi-level ACK/NACK message corresponds to multi-level ACK/NACK messages. 12. The method according to claim 11, wherein a multi-level ACK/NACK message corresponds to multiple transmissions that end within the same time slot. 13. A method for transmitting information in a wireless communication system, the method comprising: dividing a communication channel into a plurality of time slots of equal duration according to a time division multiple access scheme;sub-dividing each of the plurality of time slots to comprise two or more sub-slots according to a code division multiple access scheme;transmitting a number of transmissions, each of the transmissions corresponding to a separate transmission of a single user of a wireless communication system and each comprising a number of contiguous sub-slots associated with at least two time slots, where the number of subslots may vary from timeslot to timeslot within each transmission; andtransmitting a separate, different control channel for each transmission,wherein the duration of each separate control channel is dependent upon the number of transmitted sub-slots.
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이 특허에 인용된 특허 (16)
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Terry,Stephen E.; Dick,Stephen G.; Miller,James M.; Zeira,Eldad; Zeira,Ariela, Method and apparatus for minimizing the amount of data necessary to signal code and timeslot assignments.
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