User equipment and method to support data preprocessing

Patent metadata

Field	Value
Publication number	US-2018368166-A1
Application number	US-201816009045-A
Country	US
Kind code	A1
Filing date	Jun 14, 2018
Priority date	Jun 16, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

Described herein are a method and a mobile communication device that support data preprocessing in a mobile communication system, and in particular, a method and a mobile communication device to report buffer status that can indicate an amount of preprocessed data, for example when using 5G NR technology. An amount of preprocessed data is determined and transmitted to a network element by a user equipment (UE) in a buffer status report (BSR).

First claim

What is claimed is:

1 . A method for transmitting data in a mobile communication system by a user equipment (UE), the method comprising:
determining a first value based on an amount of processed data comprising at least one protocol data unit (PDU) with a packet data convergence protocol (PDCP) header; generating a buffer status report (BSR) comprising the first value; transmitting the BSR to a network element.

2 . The method of claim 1 , further comprising determining a second value based on a total amount of the data available for transmission in the UE, wherein the BSR comprises the second value.

3 . The method of claim 1 , wherein the at least one PDU comprises a radio link control (RLC) header.

4 . The method of claim 3 , wherein the at least one PDU comprises a medium access control (MAC) header.

5 . The method of claim 1 , further comprising determining an estimated amount of processed data by a first time, wherein the amount of processed data is the estimated amount.

6 . The method of claim 5 , wherein the first time is a time when the data becomes first available for transmission by the UE to the network element.

7 . The method of claim 1 , wherein the first value has at least 5 bits.

8 . The method of claim 2 , wherein the second value has at least 5 bits.

9 . The method of claim 1 , wherein the BSR comprises a logic channel group identifier (LCG ID) associated with a logic channel group configured for transmission of data within the buffer.

10 . The method of claim 1 , wherein the BSR is a first BSR, the network element is a first network element and the amount of processed data is a first amount of processed data for transmission to the first network element via a first link, the method further comprising:
determining a second value based on a second amount of processed data for transmission to a second network element via a second link, wherein the processed data for transmission to the second network comprises at least one PDU with a PDCP header; generating a second BSR comprising the second value; transmitting the second BSR to the second network element.

11 . A mobile communication device for transmitting data to a network element in a mobile communication system, comprising:
at least one processor; at least one memory having instructions that, when executed by the at least one processor, cause the mobile communication device to perform a method for transmitting data by the mobile communication device to the network element, the method comprising: determining a first value based on an amount of processed data having at least one protocol data unit (PDU) with a packet data convergence protocol (PDCP) header; generating a buffer status report (BSR) comprising the first value; transmitting the BSR to a network element.

12 . The mobile communication device of claim 11 , wherein the method further comprises determining a second value based on a total amount of the data available for transmission in the mobile communication device, wherein the BSR comprises the second value.

13 . The mobile communication device of claim 11 , wherein the at least one PDU comprises a radio link control (RLC) header.

14 . The mobile communication device of claim 13 , wherein the at least one PDU comprises a medium access control (MAC) header.

15 . The mobile communication device of claim 11 , wherein the method further comprises determining an estimated amount of processed data by a first time, wherein the amount of processed data is the estimated amount.

16 . The mobile communication device of claim 15 , wherein the first time is a time when the data becomes first available for transmission by the mobile communication device to the network element.

17 . A method for transmitting data in a mobile communication system by a user equipment (UE), the method comprising:
receiving an uplink (UL) grant from a network element for transmitting a first amount of data; determining whether a second amount of preprocessed data is smaller than the first amount; when the second amount is determined to be smaller than the first amount: transmitting padding bits with the preprocessed data, and an indication that unprocessed data is available for transmission to the network element.

18 . The method of claim 17 , wherein the preprocessed data comprises at least one protocol data unit (PDU) with a packet data convergence protocol (PDCP) header

19 . The method of claim 18 , wherein the preprocessed data further comprises at least one PDU having a radio link control (RLC) header and at least one PDU having a medium access control (MAC) header.

20 . The method of claim 17 , wherein the indication is a logical channel ID in a medium access control (MAC) header having a value configured to indicate that unprocessed data is available for transmission.

Assignees

• Mediatek Inc

Inventors

• Jheng Yu-Syuan
• Nuggehalli Pavan Santhana Krishna
• Hsu Chia-Chun
• Johansson Per Johan Mikael

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/1284 Primary

  Electricity · mapped topic

• H04W72/14

  Electricity · mapped topic