Abstract
Radio protocol for a next generation mobile communication system is disclosed including a radio link control layer for connecting to an upper layer through a service access point provided in advance and for connecting to a lower layer through a plurality of logic channels provided in advance The radio link control layer includes at least one radio link control entity for transmission/reception of data to/from up-link or down-link according to a form of a data transmission mode.
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Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Protocol Stack
Product
Use Cases
Wireless communication
Services
Claim
1. In a wireless communication system that employs a layered radio interface protocol, a transmitter comprising:
a radio link control (RLC) layer comprising at least three data transmission mode entities, the at least three data transmission mode entities including:
a transparent mode RLC entity adapted to control transmission of first data units that have no headers through a first logical channel by buffering the first data units;
an unacknowledged mode RLC entity adapted to control transmission of second data units that have headers through a second logical channel by segmenting and/or concatenating the second data units; and
an acknowledged mode RLC entity adapted to control transmission of third data units that have headers through a third logical channel by supporting retransmission of the third data units.', 'a radio link control (RLC) layer comprising at least three data transmission mode entities, the at least three data transmission mode entities including:', 'a transparent mode RLC entity adapted to control transmission of first data units that have no headers through a first logical channel by buffering the first data units;', 'an unacknowledged mode RLC entity adapted to control transmission of second data units that have headers through a second logical channel by segmenting and/or concatenating the second data units; and', 'an acknowledged mode RLC entity adapted to control transmission of third data units that have headers through a third logical channel by supporting retransmission of the third data units.
2. The transmitter of claim 1, wherein the transparent mode RLC entity comprises a transmission buffer adapted to buffer the first data units.
3. The transmitter of claim 1, wherein the unacknowledged mode RLC entity comprises:
a first module adapted to segment and/or concatenate the second data units; and
a second module adapted to add headers to the segmented and/or concatenated second data units to form protocol data units.', 'a first module adapted to segment and/or concatenate the second data units; and', 'a second module adapted to add headers to the segmented and/or concatenated second data units to form protocol data units.
4. The transmitter of claim 1, wherein the acknowledge mode RLC entity comprises:
a third module adapted to segment and/or concatenate the second data units;
a fourth module adapted to add headers to the segmented and/or concatenated second data units to form protocol data units; and
a fifth module adapted to support retransmission of the protocol data units.', 'a third module adapted to segment and/or concatenate the second data units;', 'a fourth module adapted to add headers to the segmented and/or concatenated second data units to form protocol data units; and', 'a fifth module adapted to support retransmission of the protocol data units.
5. The transmitter of claim 1, wherein the first logical channel is a broadcast control channel (BCCH) or a paging control channel (PCCH).
6. The transmitter of claim 1, wherein the second logical channel is a dedicated traffic channel (DTCH).
7. The transmitter of claim 1, wherein the third logical channel is a dedicated control channel (DCCH) or a dedicated traffic channel (DTCH).
8. A method of processing data units at a radio link control (RLC) layer of a transmitting side in a wireless communication system, the method comprising:
receiving service data units through a service access point at the RLC layer from an upper layer;
if the service access point is a transparent mode service access point, storing the service data units in a transmission buffer at a transparent mode RLC entity of the RLC layer;
if the service access point is an unacknowledged mode service access point, segmenting and/or concatenating the service data units and adding headers to the segmented and/or concatenated service data units to form protocol data units at an unacknowledged mode RLC entity of the RLC layer, wherein the unacknowledged mode RLC entity does not support retransmission of the protocol data units; and
if the service access point is an acknowledged mode service access point, segmenting and/or concatenating the service data units and adding headers to the segmented and/or concatenated service data units to form protocol data units at an acknowledged mode RLC entity of the RLC layer, wherein the acknowledged mode RLC entity supports retransmission of the protocol data units.', 'receiving service data units through a service access point at the RLC layer from an upper layer;', 'if the service access point is a transparent mode service access point, storing the service data units in a transmission buffer at a transparent mode RLC entity of the RLC layer;', 'if the service access point is an unacknowledged mode service access point, segmenting and/or concatenating the service data units and adding headers to the segmented and/or concatenated service data units to form protocol data units at an unacknowledged mode RLC entity of the RLC layer, wherein the unacknowledged mode RLC entity does not support retransmission of the protocol data units; and', 'if the service access point is an acknowledged mode service access point, segmenting and/or concatenating the service data units and adding headers to the segmented and/or concatenated service data units to form protocol data units at an acknowledged mode RLC entity of the RLC layer, wherein the acknowledged mode RLC entity supports retransmission of the protocol data units.
9. The method of claim 8, wherein the unacknowledged mode RLC entity comprises:
a first module adapted to segment and/or concatenate the service data units; and
a second module adapted to add headers to the segmented and/or concatenated service data units to form the protocol data units.', 'a first module adapted to segment and/or concatenate the service data units; and', 'a second module adapted to add headers to the segmented and/or concatenated service data units to form the protocol data units
10. The method of claim 1, wherein the acknowledge mode RLC entity comprises:
a third module adapted to segment and/or concatenate the service data units;
a fourth module adapted to add headers to the segmented and/or concatenated service data units to form the protocol data units; and
a fifth module adapted to support retransmission of the protocol data units.', 'a third module adapted to segment and/or concatenate the service data units;', 'a fourth module adapted to add headers to the segmented and/or concatenated service data units to form the protocol data units; and', 'a fifth module adapted to support retransmission of the protocol data units
11. In a wireless communication system that employs a layered radio interface protocol, a receiver comprising:
a radio link control (RLC) layer comprising at least three data transmission mode entities, the at least three data transmission mode entities including:
a transparent mode RLC entity adapted to control reception of first data units that have no headers through a first logical channel by delivering the first data units to an upper layer;
an unacknowledged mode RLC entity adapted to control reception of second data units that have headers through a second logical channel by removing the headers from the second data units; and
an acknowledged mode RLC entity adapted to control reception of third data units that have headers through a third logical channel by removing the headers from the third data units and requesting retransmission of the third data units which have errors.', 'a radio link control (RLC) layer comprising at least three data transmission mode entities, the at least three data transmission mode entities including:', 'a transparent mode RLC entity adapted to control reception of first data units that have no headers through a first logical channel by delivering the first data units to an upper layer;', 'an unacknowledged mode RLC entity adapted to control reception of second data units that have headers through a second logical channel by removing the headers from the second data units; and', 'an acknowledged mode RLC entity adapted to control reception of third data units that have headers through a third logical channel by removing the headers from the third data units and requesting retransmission of the third data units which have errors.12. The receiver of claim 11, wherein the unacknowledged mode RLC entity comprises:
a reception buffer adapted to store the second data units;
a first module adapted to remove the headers from the second data units;
a second module adapted to reassemble service data units from the header-removed second data units and to deliver the service data units to an upper layer.', 'a reception buffer adapted to store the second data units;', 'a first module adapted to remove the headers from the second data units;', 'a second module adapted to reassemble service data units from the header-removed second data units and to deliver the service data units to an upper layer.13. The receiver of claim 12, wherein the unacknowledged mode RLC entity is further adapted to detect whether the second data units have been received in duplication.14. The receiver of claim 11, wherein the acknowledged mode RLC entity comprises:
a reception buffer adapted to store the third data units;
a third module adapted to remove the headers from the third data units;
a fourth module adapted to reassemble service data units from the header-removed third data units and to deliver the service data units to an upper layer.', 'a reception buffer adapted to store the third data units;', 'a third module adapted to remove the headers from the third data units;', 'a fourth module adapted to reassemble service data units from the header-removed third data units and to deliver the service data units to an upper layer.15. The receiver of claim 14, wherein the acknowledged mode RLC entity is further adapted to detect whether the third data units have been received in duplication.16. The receiver of claim 14, wherein the service data units are delivered to the upper layer in-sequence.17. A method of processing data units at a radio link control (RLC) layer of a receiving side in a wireless communication system, the method comprising:
delivering first data units that have no headers by a transparent mode RLC entity of the RLC layer to an upper layer;
processing second data units received from the transmitting side by an unacknowledged mode RLC entity of the RLC layer, the second data units having headers, wherein processing the second data units comprises:
storing the second data units in a first reception buffer;
removing the headers from the second data units; and
reassembling service data units from the header-removed second data units and delivering the service data units to an upper layer; and
processing third data units received from the transmitting side by an acknowledged mode RLC entity of the RLC layer, the third data units having headers, wherein processing the third data units comprises:
storing the third data units in a second reception buffer;
removing the headers from the third data units; and
reassembling service data units from the header-removed third data units and delivering the service data units to an upper layer.', 'delivering first data units that have no headers by a transparent mode RLC entity of the RLC layer to an upper layer;', 'processing second data units received from the transmitting side by an unacknowledged mode RLC entity of the RLC layer, the second data units having headers, wherein processing the second data units comprises:', 'storing the second data units in a first reception buffer;', 'removing the headers from the second data units; and', 'reassembling service data units from the header-removed second data units and delivering the service data units to an upper layer; and', 'processing third data units received from the transmitting side by an acknowledged mode RLC entity of the RLC layer, the third data units having headers, wherein processing the third data units comprises:', 'storing the third data units in a second reception buffer;', 'removing the headers from the third data units; and', 'reassembling service data units from the header-removed third data units and delivering the service data units to an upper layer.18. The method of claim 17, wherein the unacknowledged mode RLC entity is adapted to detect whether the second data units have been received in duplication.19. The method of claim 17, wherein the acknowledged mode RLC entity is adapted to detect whether the third data units have been received in duplication.
20. The method of claim 19, wherein the acknowledged mode RLC entity is further adapted to request retransmission of the third data units which have errors.']
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.