Apparatus, method and computer program product to request a data rate increase based on ability to transmit at least one more selected data unit

Abstract

A method includes, in response to selection of a transport block to be transmitted through a wireless channel at a current data rate, performing at least the following: selecting a size for a data unit that can be scheduled for transmission; identifying one of a number of potential transport blocks, the identified potential transport block having a corresponding transport block size large enough to hold at least the selected size of the data unit and the transport block size of the currently selected transport block; determining whether the identified potential transport block is available for transmission; and transmitting a request for an increase in the current data rate in response to the identified potential transport block being available for transmission.

Description

technical field [0001] The exemplary, non-limiting embodiments of the present invention generally relate to wireless communication systems, devices and methods, and more particularly, to wireless communication system techniques for enabling devices, such as user equipment, to request increased data rates. Background technique [0002] The following abbreviations are defined as follows: [0003] DCH dedicated channel [0004] DPDCH Dedicated Physical Data Channel [0005] DPCCH Dedicated Physical Control Channel [0006] E-DCH Enhanced Uplink DCH [0007] E-DPDCH Enhanced DPDCH [0008] E-DPCCH Enhanced DPCCH [0009] E-TFC E-DCH Transport Format Combination [0010] HSUPA High Speed ​​Uplink Packet Access [0011] IE information element [0012] MAC media access control [0013] Node B base station [0014] PDU protocol data unit [0015] RLC radio link control [0016] RNC radio network controller [0017] RRC Radio Resource Control [0018] SDU Service Data U...

AI Technical Summary

Problems solved by technology

However, the problem in this definition is that if the UE is currently transmitting with E-TFC Y (e.g. sending a specific transport block size), then if the UE has the means to transmit with E-TFC Y+1 (e.g. sending a slightly larger transmit block size), the UE shall not indicate "unpleasant"

This is because in a practical sense, the next E-TFC can almost never accommodate one more SDU, and thus cannot be used to transmit at a higher data rate

For example, slightly larger transport block sizes typically cannot accommodate another SDU

[0033] So the basic problem is that data from higher layers comes to the MAC in SDUs of a certain size, and increasing the data rate sent means sending one or several additional SDUs in one transport block (for example in one E-TFC)

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