Method and Apparatus of Latency Measurement for LTE-WLAN Aggregation
US-2016338074-A1 · Nov 17, 2016 · US
Method for reconfiguring a pdcp reordering timer in a wireless communication system and device therefor
US2016183221A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016183221-A1 |
| Application number | US-201514829192-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 18, 2015 |
| Priority date | Dec 18, 2014 |
| Publication date | Jun 23, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reconfiguring a PDCP reordering timer in wireless communication system, the method comprising: starting a PDCP (Packet Data Convergence Protocol) reordering timer; receiving an RRC (Radio Resource Control) message indicating that a new value is used for the PDCP reordering timer; re-starting the PDCP reordering timer with the new value; and setting a reordering_PDCP_RX_COUNT to a COUNT value associated to RX_HFN and Next_PDCP_RX_SN upon when the PDCP reordering timer with the new value re-start.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for a User Equipment (UE) operating in a wireless communication system, the method comprising: starting a PDCP (Packet Data Convergence Protocol) reordering timer; receiving an RRC (Radio Resource Control) message indicating that a new value is used for the PDCP reordering timer; re-starting the PDCP reordering timer with the new value; and setting a reordering_PDCP_RX_COUNT to a COUNT value associated to RX_HFN and Next_PDCP_RX_SN upon when the PDCP reordering timer with the new value re-starts. 2 . The method according to claim 1 , wherein the reordering_PDCP_RX_COUNT is used only when a PDCP reordering function is used, and a value of the reordering_PDCP_RX_COUNT is a value of a COUNT following a COUNT value associated with a PDCP PDU (Protocol Data Unit) which triggered a PDCP reordering timer. 3 . The method according to claim 1 , wherein a variable of the RX_HFN indicates a HFN (Hyper Frame Number) value for generation of a COUNT value used for a received PDCP PDUs for a PDCP entity. 4 . The method according to claim 1 , wherein a variable of the Next_PDCP_RX_SN indicates a next expected PDCP SN (Sequence Number) by a receiver for a PDCP entity. 5 . The method according to claim 1 , wherein the setting the reordering_PDCP_RX_COUNT to the COUNT value associated to RX_HFN and Next_PDCP_RX_SN corresponds to re-starting the PDCP reordering timer with new value for a PDCP SDU (Service Data Unit) with a highest COUNT value among PDCP SDUs stored in a reordering buffer. 6 . The method according to claim 1 , when the RRC is received, while the PDCP reordering timer is running, the running PDCP reordering timer is stopped. 7 . A User Equipment (UE) operating in a wireless communication system, the UE comprising: a Radio Frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is configured to start a PDCP (Packet Data Convergence Protocol) reordering timer, to receive an RRC (Radio Resource Control) message indicating that a new value is used for the PDCP reordering timer, to re-start the PDCP reordering timer with the new value, and to set a reordering_PDCP_RX_COUNT to a COUNT value associated to RX_HFN and Next_PDCP_RX_SN upon when the PDCP reordering timer with the new value re-starts. 8 . The UE according to claim 7 , wherein the reordering_PDCP_RX_COUNT is used only when a PDCP reordering function is used, and a value of the reordering_PDCP_RX_COUNT is a value of a COUNT following a COUNT value associated with a PDCP PDU (Protocol Data Unit) which triggered a PDCP reordering timer. 9 . The UE according to claim 7 , wherein a variable of the RX_HFN indicates a HFN (Hyper Frame Number) value for generation of a COUNT value used for a received PDCP PDUs for a PDCP entity. 10 . The UE according to claim 7 , wherein a variable of the Next_PDCP_RX_SN indicates a next expected PDCP SN (Sequence Number) by a receiver for a PDCP entity. 11 . The UE according to claim 7 , wherein the setting the reordering_PDCP_RX_COUNT to the COUNT value associated to RX_HFN and Next_PDCP_RX_SN corresponds to re-starting the PDCP reordering timer with new value for a PDCP SDU (Service Data Unit) with a highest COUNT value among PDCP SDUs stored in a reordering buffer. 12 . The UE according to claim 7 , when the RRC is received, while the PDCP reordering timer is running, the running PDCP reordering timer is stopped.
Assignees
Inventors
Classifications
- H04W72/23Primary
in the downlink direction of a wireless link, i.e. towards a terminal · CPC title
using assembly or disassembly of packets · CPC title
Selective-repeat protocols · CPC title
ARQ related signaling · CPC title
- H04L1/1887Primary
Scheduling and prioritising arrangements · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016183221A1 cover?
- The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reconfiguring a PDCP reordering timer in wireless communication system, the method comprising: starting a PDCP (Packet Data Convergence Protocol) reordering timer; receiving an RRC (Radio Resource Control) message indicating that a new value is used for…
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W72/23. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).