Reducing overheads of a protocol data unit in a wireless communication system
First Claim
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1. A method for processing data units of a wireless communication system comprising a terminal and a radio access network, the method performed by the terminal comprises:
- receiving a plurality of service data units from a first layer;
concatenating the plurality of received service data units;
adding a header to the concatenated service data units to generate a protocol data unit; and
delivering the generated protocol data unit to a second layer,wherein the generated protocol data unit for High Speed Uplink Packet Access (HSUPA) comprises;
the concatenated plurality of service data units classified into at least two groups, each group having service data units belonging to each logical channel, and service data units belonging to one logical channel having a same size, andeach logical channel identifier information included for each group,wherein each logical channel is located between a radio link control (RLC) layer and a medium access control (MAC) layer,wherein the MAC layer comprises the first layer and a third layer,wherein the first layer is for a dedicated channel (DCH) and the third layer is for an enhanced dedicated channel (E-DCH),wherein the concatenation of the plurality of received service data units is performed by the third layer,wherein each logical channel identifier information is included in the header of the protocol data unit, andwherein the header of the protocol data unit is added by the third layer.
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Abstract
The present invention relates to transmitting data units of a radio protocol layer, wherein one logical channel identifier is added to one or more data units belonging to one logical channel. Because only one logical channel identifier is added to the data units belonging to one logical channel in constructing a MAC-e PDU, overheads of the MAC-e PDU are reduced. Such reduction of the PDU overheads increases data throughput, which is advantageous for a high-speed data communication system, such as the HSUPA.
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20 Claims
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1. A method for processing data units of a wireless communication system comprising a terminal and a radio access network, the method performed by the terminal comprises:
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receiving a plurality of service data units from a first layer; concatenating the plurality of received service data units; adding a header to the concatenated service data units to generate a protocol data unit; and delivering the generated protocol data unit to a second layer, wherein the generated protocol data unit for High Speed Uplink Packet Access (HSUPA) comprises; the concatenated plurality of service data units classified into at least two groups, each group having service data units belonging to each logical channel, and service data units belonging to one logical channel having a same size, and each logical channel identifier information included for each group, wherein each logical channel is located between a radio link control (RLC) layer and a medium access control (MAC) layer, wherein the MAC layer comprises the first layer and a third layer, wherein the first layer is for a dedicated channel (DCH) and the third layer is for an enhanced dedicated channel (E-DCH), wherein the concatenation of the plurality of received service data units is performed by the third layer, wherein each logical channel identifier information is included in the header of the protocol data unit, and wherein the header of the protocol data unit is added by the third layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for processing data units of a wireless communication system comprising a terminal and a radio access network, the method performed by the radio access network and comprising:
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receiving a protocol data unit including a header and a plurality of concatenated service data units from a second layer; reading the header of the received protocol data unit; disassembling the plurality of concatenated service data units; and delivering the disassembled service data units to a first layer, wherein the received protocol data unit for High Speed Uplink Packet Access (HSUPA) comprises; the plurality of concatenated service data units classified into at least two groups in the terminal, each group having service data units belonging to each logical channel, and service data units belonging to one logical channel having a same size, and each logical channel identifier information included for each group, and wherein each logical channel is located between a radio link control (RLC) layer and a medium access control (MAC) layer, wherein the MAC layer comprises the first layer and a third layer, wherein the first layer is for a dedicated channel (DCH) and the third layer is for an enhanced dedicated channel (E-DCH), wherein the disassembling of the plurality of concatenated service data units is performed by the third layer, wherein each logical channel identifier information is included in the header of the protocol data unit, and wherein the header of the protocol data unit is read by the third layer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification