MAC-d multiplexing in UTRAN HSDPA wireless networks
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsAnna Larmo, Stefan Wager, Janne Peisa, Johan Torsner, Mats Sågfors
Life of this patent
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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsAnna Larmo, Stefan Wager, Janne Peisa, Johan Torsner, Mats Sågfors
Estimating the term…
UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8-n) bits, where n=the number of bits in C/T field.
A method performed at a Radio Network Controller (RNC) for transmitting data in a wireless communication network that includes at least one NodeB and one or more user equipments (UE), the method comprising:
A Radio Network Controller (RNC) in a wireless communication network that includes at least one NodeB and one or more user equipments (UE), wherein the NodeB includes a high speed Medium Access Controller (MAC-hs) configured to direct MAC-d flows from the RNC to one or more Priority Queues (PQs), wherein two or more logical channels are mapped to at least one PQ, and to transmit a logical channel identifier (LCH-ID) to a UE, wherein the LCH-ID field of a MAC-ehs PDU identifies the PQ, the RNC comprising:
A NodeB in a wireless communication network that includes at least one Radio Network Controller (RNC) and one or more user equipments (UE), wherein the RNC includes a dedicated Medium Access Controller (MAC-d) configured to multiplex data received from two or more radio bearers on two or more respective logical channels into a single MAC-d flow, octet-align MAC-d Protocol Data Units (PDUs) associated with the multiplexed MAC-d flow, transmit logical channel identifiers (LCH-ID) with the multiplexed MAC-d flows to a UE, and transmit the LCH-ID to the NodeB in a High Speed Downlink Shared Channel (HS-DSCH) data frame header, the NodeB comprising:
A method of receiving data at a User Equipment (UE) in a wireless communication network that includes at least one Radio Network Controller (RNC) and an NodeB, wherein the RNC includes a dedicated Medium Access Controller (MAC-d) configured to multiplex data received from two or more radio bearers on two or more respective logical channels into a single MAC-d flow, octet-align MAC-d Protocol Data Units (PDUs) associated with the multiplexed MAC-d flow, transmit logical channel identifiers (LCH-ID) with the multiplexed MAC-d flows to the UE, and transmit the LCH-ID to the NodeB in a High Speed Downlink Shared Channel (HS-DSCH) data frame header, the method comprising:
A User Equipment (UE) configured to receive data in a wireless communication network that includes at least one Radio Network Controller (RNC) and an NodeB, wherein the RNC includes a dedicated Medium Access Controller (MAC-d) configured to multiplex data received from two or more radio bearers on two or more respective logical channels into a single MAC-d flow, octet-align MAC-d Protocol Data Units (PDUs) associated with the multiplexed MAC-d flow, transmit logical channel identifiers (LCH-ID) with the multiplexed MAC-d flows to the UE, and transmit the LCH-ID to the NodeB in a High Speed Downlink Shared Channel (HS-DSCH) data frame header, the UE comprising:
Dependencies are inferred from the claim text.