Method of Radio Bearer Transmission in Dual Connectivity

Patent metadata

Field	Value
Publication number	US-2016278138-A1
Application number	US-201615072363-A
Country	US
Kind code	A1
Filing date	Mar 17, 2016
Priority date	Mar 19, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

A method of radio bearer transmission in dual connectivity for a network in a long term evolution (LTE) system is disclosed. The method comprises generating at least a packet data convergence protocol protocol data unit (PDCP PDU) by a PDCP entity of the network corresponding to a radio bearer (RB), and assigning each PDCP PDU with an identity, wherein the identity indicates which PDCP entity the PDCP PDU belongs to.

First claim

What is claimed is:

1 . A method of radio bearer transmission in dual connectivity for a network in a long term evolution (LTE) system, the method comprising:
generating at least a packet data convergence protocol protocol data unit (PDCP PDU) by a PDCP entity of the network corresponding to a radio bearer (RB); and assigning each PDCP PDU with an identity, wherein the identity indicates which PDCP entity the PDCP PDU belongs to.

2 . The method of claim 1 , wherein the identity is an RB identity, a PDCP entity identity or any identity that can uniquely identify a RB or a PDCP entity.

3 . The method of claim 1 , further comprising:
transmitting the at least a PDCP PDU associated to the RB with the identities to a mobile device of the wireless communication system via an access point (AP) of a wireless local area network (WLAN).

4 . The method of claim 3 , further comprising:
removing the PDCP PDU in a buffer of the network upon receiving a notification indicates successful delivery of the PDCP PDU from the AP.

5 . The method of claim 3 , further comprising:
determining a RB type for transmitting the RB to the mobile device according to at least one of a AP discovery report, mobile device location information, a measurement report, a AP failure report received from the mobile device and assisting information received from the AP.

6 . The method of claim 5 , wherein the AP discovery report includes at least a SSID and/or a BSSID of a AP selected by the mobile device, MAC address of the mobile device, signal quality corresponding to a selected AP and/or mobile device class, and the assisting information includes SSID, BSSID, load and/or throughput.

7 . The method of claim 5 , further comprising:
transmitting a private AP configuration indicating a configuration for a PDCP PDU transmission, to a mobile device of the wireless communication system.

8 . The method of claim 7 , wherein the private AP configuration includes at least one of a private SSID, central frequency and/or bandwidth for the mobile device, security information for association, IP address of the mobile device and time pattern.

9 . The method of claim 7 , further comprising:
transmitting a AP resource request for the resource allocation, to the AP; and receiving the private AP configuration from the AP; wherein the step of transmitting the private AP configuration to the mobile device comprises transmitting the private AP configuration received from the AP, to the mobile device.

10 . The method of claim 9 , wherein the AP resource request includes a RB index, QoS parameters, and/or a MAC address of the mobile device.

11 . The method of claim 7 , wherein the transmitting step comprises:
transmitting the private AP configuration together with a RB type change indication to indicate the RB type, to the mobile device, wherein the RB type includes a split RB which transmitted by resources of both the network and a AP, an assisted RB which transmitted by resource of the AP, or a normal RB which transmitted by resource of the network.

12 . The method of claim 5 , wherein the AP failure report includes cause of AP failure and/or the latest measurement results of an AP.

13 . The method of claim 5 , further comprising:
transmitting a AP failure report configuration for gathering information of usage of AP resource, to the mobile device.

14 . The method of claim 13 , wherein the AP failure report configuration includes thresholds of AP signaling quality, throughput, and/or a number and timer of attempts to connecting with the AP, a measurement type, threshold for event triggered report and/or period for periodically report.

15 . The method of claim 5 , further comprising:
transmitting a AP resource request for a resource allocation, to the AP; and receiving a AP resource reject from the AP.

16 . The method of claim 7 , further comprising:
transmitting a AP resource requirement to the AP; receiving a AP resource suggestion from the AP; transmitting a AP resource request for the resource allocation, to the AP; and receiving the private AP configuration from the AP.

17 . The method of claim 16 , wherein the AP resource requirement includes RB index, QoS parameters and/or MAC address of mobile device, and the AP resource suggestion includes suggested QoS parameters supported by the AP.

18 . The method of claim 5 , further comprising:
transmitting a AP resource release to the AP, wherein the AP resource release includes a RB index to be released; receiving a AP resource reallocation from the AP, wherein the AP resource reallocation includes a private AP configuration indicating a configuration for a PDCP PDU transmission; and transmitting the private AP configuration together with the RB index to be released or a RB type change indication to indicate a RB type to the mobile device, wherein the RB type includes a split RB which is transmitted by resources of both the network and a AP, an assisted RB which is transmitted by resource of the AP, or a normal RB which is transmitted by resource of the network.

19 . The method of claim 5 , further comprising:
transmitting a RB type change indication to indicate a RB type to the mobile device, wherein the RB type includes a split RB which is transmitted by resources of both the network and a AP, an assisted RB which is transmitted by resource of the AP, or a normal RB which is transmitted by resource of the network.

20 . The method of claim 16 , further comprising:
receiving a AP release from the AP, wherein the AP release includes a MAC address of the mobile device.

21 . The method of claim 20 , further comprising:
receiving a PDCP status report; and determining whether to start a PDCP PDU retransmission according to the PDCP status report.

22 . The method of claim 3 , further comprising:
transmitting a AP release to the AP, wherein the AP release includes a MAC address of the mobile device.

23 . A method of radio bearer transmission in dual connectivity for an access point (AP) of wireless local area network (WLAN), the method comprising:
receiving a packet data convergence protocol protocol data unit (PDCP PDU) associated to a RB with an identity from a network of a long term evolution (LTE) system, wherein the identity indicates which PDCP entity the PDCP PDU belongs to and is assigned by the network; transmitting the received PDCP PDU with the identity, to a mobile device of the LTE system; and informing the network the successful delivery of the PDCP PDU, to the mobile device.

24 . The method of claim 23 , wherein the identity is a radio bearer (RB) identity, a PDCP entity identity or any identity that can uniquely identify a RB, which corresponding to a PDCP entity, or a PDCP entity.

25 . The method of claim 23 , further comprising:
receiving a AP resource request for a resource allocation, from the network; and transmitting a private AP configuration indicating a configuration for a PDCP PDU transmission to the network.

26 . The method of claim 25 , wherein the AP resource request includes a RB index, QoS parameters and/or a MAC address of the mobile device.

27 . The method of claim 25 , wherein the private AP configuration includes at least one of a private SSID, central frequency and/or bandwidth for the mobile device, security information for association, IP address of the

Assignees

• Acer Inc

Inventors

• Chen Hung-Chen
• Cheng Ching-Wen

Classifications

• H04W76/34

  Selective release of ongoing connections · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W76/15

  Setup of multiple wireless link connections · CPC title

• H04W76/11 Primary

  Allocation or use of connection identifiers · CPC title