US2016183124A1PendingUtilityA1

Method and apparatus for versatile mac multiplexing in evolved hspa

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Assignee: INTERDIGITAL TECH CORPPriority: Feb 2, 2007Filed: Mar 2, 2016Published: Jun 23, 2016
Est. expiryFeb 2, 2027(~0.5 yrs left)· nominal 20-yr term from priority
Inventors:Paul MarinierDiana PaniStephen E. TerrySudheer A. Grandhi
H04W 28/06H04L 47/34H04W 80/02H04L 49/9094H04L 49/90
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Claims

Abstract

Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for creating a medium access control (MAC) enhanced high speed (MAC-ehs) header for a MAC protocol data unit (PDU), the method comprising:
 creating the MAC-ehs header for the MAC PDU, the MAC-ehs header comprising a segmentation indication (SI) field for a reordering PDU, the SI field indicating:
 whether a first reordering SDU in the reordering PDU is a last segment of a MAC-ehs SDU, or 
 whether a last reordering SDU in the reordering PDU is a first segment of a MAC-ehs SDU. 
   
     
     
         2 . The method of  claim 1 , wherein the SI field indicates that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         3 . The method of  claim 1 , wherein the SI field indicates that the last reordering SDU is the first segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         4 . The method of  claim 1 , wherein the SI field indicates that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU. 
     
     
         5 . The method of  claim 1 , wherein the SI field indicates that, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU. 
     
     
         6 . The method of  claim 1 , wherein the reordering PDU includes one or more segments of one or more MAC-ehs SDUs. 
     
     
         7 . A base station for creating a medium access control (MAC) enhanced high speed (MAC-ehs) header for a MAC protocol data unit (PDU), the base station comprising:
 a processor configured to create the MAC-ehs header for the MAC PDU, the MAC-ehs header comprising a segmentation indication (SI) field for a reordering PDU, the SI field indicating:
 whether a first reordering SDU in the reordering PDU is a last segment of a MAC-ehs SDU, or 
 whether a last reordering SDU in the reordering PDU is a first segment of a MAC-ehs SDU. 
   
     
     
         8 . The base station of  claim 7 , wherein the SI field indicates that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         9 . The base station of  claim 7 , wherein the SI field indicates that the last reordering SDU is the first segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         10 . The base station of  claim 7 , wherein the SI field indicates that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU. 
     
     
         11 . The base station of  claim 7 , wherein the SI field indicates that, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU. 
     
     
         12 . The base station of  claim 7 , wherein the reordering PDU includes one or more segments of one or more MAC-ehs SDUs. 
     
     
         13 . A method for interpreting a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU), the method comprising:
 receiving a value of the SI field in the MAC header, the SI field corresponding to a reordering PDU; and   interpreting, based on the value of the SI field, whether a first reordering SDU of the reordering PDU is a last segment of a MAC-ehs SDU or whether a last reordering SDU of the reordering PDU is a first segment of a MAC-ehs SDU.   
     
     
         14 . The method of  claim 13 , further comprising interpreting, based on the SI field, that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         15 . The method of  claim 13 , further comprising interpreting, based on the SI field, that the last reordering SDU is the first segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         16 . The method of  claim 13 , further comprising interpreting, based on the SI field, that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU. 
     
     
         17 . The method of  claim 13 , further comprising interpreting, based on the SI field, that, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU. 
     
     
         18 . A wireless transmit/receive unit (WTRU) for interpreting a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU), the WTRU comprising:
 a processor configured to:
 receive a value of the SI field in the MAC header, the SI field corresponding to a reordering PDU; and 
 interpret, based on the value of the SI field, whether a first reordering SDU of the reordering PDU is a last segment of a MAC-ehs SDU or whether a last reordering SDU of the reordering PDU is a first segment of a MAC-ehs SDU. 
   
     
     
         19 . The WTRU of  claim 18 , wherein the processor is further configured to interpret, based on the SI field, that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, that the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         20 . The WTRU of  claim 18 , wherein the processor is further configured to interpret, based on the SI field, that the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU, and, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU. 
     
     
         21 . The WTRU of  claim 18 , wherein the processor is further configured to interpret, based on the SI field, that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU. 
     
     
         22 . The WTRU of  claim 18 , wherein the processor is further configured to interpret, based on the SI field, that, if there are more than one reordering SDUs in the reordering PDU, the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU. 
     
     
         23 . A method for processing a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU), the method comprising:
 receiving a value of the SI field in the MAC header, the SI field corresponding to a reordering PDU; and   delivering one or more MAC PDUs to a demultiplexing entity based on the SI field,   wherein, when the SI field has a value indicating that a first reordering SDU of the reordering PDU is a last segment of a MAC-ehs SDU, the one or more MAC PDUs are delivered based on whether a received segment of a MAC-ehs SDU and a stored segment of a MAC-ehs SDU are consecutive, or   wherein, when the SI field has a value indicating that a last reordering SDU of the reordering PDU is a first segment of a MAC-ehs SDU, the one or more MAC PDUs correspond to each reordering SDU in the reordering PDU except a last reordering SDU.   
     
     
         24 . The method of  claim 23 , further comprising:
 combining the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU; and   delivering the combined segments to the demultiplexing entity.   
     
     
         25 . The method of  claim 23 , further comprising discarding the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU when the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU are not consecutive. 
     
     
         26 . The method of  claim 23 , wherein when the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU are not consecutive, the one or more MAC PDUs include a MAC PDU received subsequent to the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU. 
     
     
         27 . The method of  claim 23 , further comprising:
 discarding any stored MAC-ehs PDUs; and   storing the last reordering SDU.   
     
     
         28 . The method of  claim 23 , wherein, when the SI field has a value of indicating that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU, the one or more MAC PDUs are delivered based on whether a received segment of a MAC-ehs SDU and a stored segment of a MAC-ehs SDU are consecutive. 
     
     
         29 . A wireless transmit/receive unit (WTRU) for processing a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU), the WTRU comprising:
 a processor configured to:
 receive a value of the SI field in the MAC header, the SI field corresponding to a reordering PDU; and 
 deliver one or more MAC PDUs to a demultiplexing entity based on the SI field, 
 wherein, when the SI field has a value indicating that a first reordering SDU of the reordering PDU is a last segment of a MAC-ehs SDU, the one or more MAC PDUs are delivered based on whether a received segment of a MAC-ehs SDU and a stored segment of a MAC-ehs SDU are consecutive, or 
   wherein, when the SI field has a value of indicating that a last reordering SDU of the reordering PDU is a first segment of a MAC-ehs SDU, the one or more MAC PDUs correspond to each reordering SDU in the reordering PDU except a last reordering SDU.   
     
     
         30 . The WTRU of  claim 29 , wherein the processor is further configured to:
 combine the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU; and   deliver the combined segments to the demultiplexing entity.   
     
     
         31 . The WTRU of  claim 29 , wherein the processor is further configured to discard the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU when the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU are not consecutive. 
     
     
         32 . The WTRU of  claim 29 , wherein when the received MAC-ehs SDU and the stored MAC-ehs SDU are not consecutive, the MAC PDUs include MAC PDUs received subsequent to the received segment of the MAC-ehs SDU and the stored segment of the MAC-ehs SDU. 
     
     
         33 . The WTRU of  claim 29 , wherein the processor is further configured to:
 discard any previously stored MAC-ehs PDUs; and   store the last reordering SDU.   
     
     
         34 . The WTRU of  claim 29 , wherein, when the SI field has a value of indicating that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU, the WTRU is configured to deliver the one or more MAC PDUs based on whether a received segment of a MAC-ehs SDU and a stored segment of a MAC-ehs SDU are consecutive.

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