System level procedures and methods to enable data sharing in cellular network

Patent metadata

Field	Value
Publication number	US-10009936-B2
Application number	US-201715589141-A
Country	US
Kind code	B2
Filing date	May 8, 2017
Priority date	May 10, 2012
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

Methods and systems may enable the setup and configuration of proximity services between wireless transmit/receive units (WTRUs) over different sharing paths including via a direct air interface, a radio access network (RAN) or one or more network nodes. Mobility management entities (MMEs) may exchange messages to initiate, modify or terminate a proximity service session between WTRUs, and may negotiate data paths for proximity services with or without the assistance of WTRUs. WTRU-to-WTRU control plane messages may be exchanged between WTRUs with limited involvement from other network entities and may avoid the setup of resources for data plane communications. Mobility management entities (MMEs) may exchange messages to initiate, modify or terminate a proximity service session between WTRUs, and may negotiate data paths for proximity services with or without the assistance of WTRUs.

First claim

What is claimed is:

1. An evolved Node B (eNB) comprising:
a transceiver configured to transmit, to a first wireless transmit/receive unit (WTRU), an assignment of a proximity radio network terminal identifier (RNTI);
the transceiver configured to transmit an indication of time intervals for direct wireless communication between the first WTRU and a second WTRU;
the transceiver configured to transmit, to the first WTRU, a first signal including control information for communication between the first WTRU and the eNB, wherein the first signal is derived at least in part from a cell RNTI (C-RNTI); and
the transceiver configured to transmit, to the first WTRU, a second signal including control information for communication over a direct wireless connection between the first WTRU and the second WTRU, wherein the second signal is derived at least in part from the proximity RNTI.

2. The eNB of claim 1 , wherein:
the transceiver is further configured to transmit an indication message indicating that the first WTRU may engage in direct WTRU-to-WTRU control plane communications with other WTRUs.

3. The eNB of claim 2 , wherein:
the transceiver is further configured to transmit the indication message as part of a registration procedure.

4. The eNB of claim 2 , wherein the indication message is in a control plane.

5. The eNB of claim 1 , wherein:
the transceiver is further configured to transmit, to the second WTRU, a second assignment of the proximity RNTI;
the transceiver configured to transmit a second indication of the time intervals for direct wireless communication between the first WTRU and the second WTRU;
the transceiver configured to transmit, to the second WTRU, a third signal including control information for communication between the first WTRU and the eNB, wherein the third signal is derived at least in part from a second C-RNTI; and
the transceiver configured to transmit, to the second WTRU, a fourth signal including control information for communication over a direct wireless connection between the first WTRU and the second WTRU, wherein the fourth signal is derived at least in part from the proximity RNTI.

6. A method, performed by an evolved Node B (eNB), the method comprising:
transmitting, to a first wireless transmit/receive unit (WTRU), an assignment of a proximity radio network terminal identifier (RNTI);
transmitting an indication of time intervals for direct wireless communication between the first WTRU and a second WTRU;
transmitting, to the first WTRU, a first signal including control information for communication between the first WTRU and the eNB, wherein the first signal is derived at least in part from a cell RNTI (C-RNTI); and
transmitting, to the first WTRU, a second signal including control information for communication over a direct wireless connection between the first WTRU and the second WTRU, wherein the second signal is derived at least in part from the proximity RNTI.

7. The method of claim 6 , further comprising:
transmitting an indication message indicating that the first WTRU may engage in direct WTRU-to-WTRU control plane communications with other WTRUs.

8. The method of claim 7 , further comprising:
transmitting the indication message as part of a registration procedure.

9. The method of claim 7 , wherein the indication message is in a control plane.

10. The method of claim 6 , further comprising:
transmitting, to the second WTRU, a second assignment of the proximity RNTI;
transmitting a second indication of the time intervals for direct wireless communication between the first WTRU and the second WTRU;
transmitting, to the second WTRU, a third signal including control information for communication between the first WTRU and the eNB, wherein the third signal is derived at least in part from a second C-RNTI; and
transmitting, to the second WTRU, a fourth signal including control information for communication over a direct wireless connection between the first WTRU and the second WTRU, wherein the fourth signal is derived at least in part from the proximity RNTI.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Watfa Mahmoud
• Wang Peter

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W4/00

  Services specially adapted for wireless communication networks; Facilities therefor · CPC title

• H04W84/08

  Trunked mobile radio systems · CPC title

• H04W4/023

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title

• H04W4/50

  Service provisioning or reconfiguring · CPC title