# US 2020/0288341 A1 · Dynamic Offloading of V2X Services to DSRC

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- Number: US 2020/0288341 A1
- Document ID: US20200288341A1
- Status: Published application
- Kind: A1
- Application number: 16/883,525
- Filed: 2020-05-26
- Published: 2020-09-10
- Earliest claimed: 2016-06-30
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Ranganadh Karella; Meghashree Dattatri Kedalagudde; Dave A. Cavalcanti; Ana Lucia Pinheiro
- Web page: https://patentgrep.com/patent/US20200288341A1

## CPC

- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04L 43/062: related to network traffic
- H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 28/02: Traffic management, e.g. flow control or congestion control
- H04W 28/086: among access entities
- H04W 36/1443: {between licensed networks}
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- H04W 88/10: adapted for operation in multiple networks, e.g. multi-mode access points
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Systems and methods of providing V2X communications are generally described. The multimode UE communicates V2X messages with an eNB. The eNB detects whether the UE is able to receive messages from a nearby DSRC RSU based on measurements received from the UE and reported to the eNB. Based on the measurements, the eNB offloads V2X traffic to the DSRC RSU and triggers the UE to start communicating the V2X services from the DSRC RSU rather than the eNB. The measurements are reported in a BSR or DSRC MAC control element or RRC measurement report. The measurement report includes DSRC presence fields, CCH measurements and SCH measurements for each DSRC RSU that the UE is able to detect.

## Claims

### Claim at position 1

1-27. (canceled)

### Claim 28

An apparatus of a cellular roadside unit (RSU), the apparatus comprising:
a processor configured to cause the cellular RSU to:
receive, from respective dedicated short range communication (DSRC) RSUs of a plurality of DSRC RSUs:
respective capability information of the respective DSRC RSU;
respective loading of the respective DSRC RSU; and
configuration information of the respective DSRC RSU;
establish communication with a user equipment device (UE);
receive, from the UE, location information of the UE;
determine to offload the UE to a first DSRC RSU of the plurality of DSRC RSUs, wherein the determination to offload the UE to the first DSRC RSU is based on:
the location information of the UE; and
the capability information and loading of the first DSRC RSU; and
transmit, to the UE, an offload command including the configuration information of the DSRC RSU.

### Claim 29 (depends on 28)

The apparatus of claim 28, wherein the processor is further configured to cause the cellular RSU to:
transmit, to the UE, a measurement configuration; and
receive, from the UE, a measurement report based on the measurement configuration, wherein the determination to offload the UE to the first DSRC RSU is further based on the measurement report.

### Claim 30 (depends on 29)

The apparatus of claim 29, wherein the measurement configuration is event based.

### Claim 31 (depends on 29)

The apparatus of claim 29, wherein a plurality of measurement reports are received corresponding to individual measurements.

### Claim 32 (depends on 28)

The apparatus of claim 28, wherein the offload command further includes a time when offloading is to occur.

### Claim 33 (depends on 28)

The apparatus of claim 28, wherein the processor is further configured to cause the cellular RSU to provide, to the first DSRC RSU, an indication of a service to be offloaded.

### Claim 34 (depends on 33)

The apparatus of claim 33, wherein the UE is a vehicle-to-anything (V2X) UE, the service is a V2X service, and the indication comprises a provider service identifier (PSID).

### Claim 35 (depends on 28)

The apparatus of claim 28, wherein the determination to offload the UE to the first DSRC RSU is based on loading of the cellular RSU.

### Claim 36 (depends on 28)

The apparatus of claim 28, wherein the determination to offload the UE to the first DSRC RSU is based on loading of a second DSRC RSU of the plurality of DSRC RSUs.

### Claim 37 (depends on 28)

The apparatus of claim 28, wherein the determination to offload the UE to the first DSRC RSU is based on measurements by the UE of a second DSRC RSU of the plurality of DSRC RSUs.

### Claim 38

An apparatus of a dedicated short range communication (DSRC) roadside unit (RSU), the apparatus comprising:
a processor configured to cause the DSRC RSU to:
provide, to a cellular RSU, configuration information of the DSRC RSU;
receive, from the cellular RSU, information about a user equipment device (UE) to be offloaded to the DSRC RSU, wherein the information includes an indication of a first vehicle-to-anything (V2X) service to be offloaded; and
in response to the indication of the first V2X service to be offloaded:
determine to accept the first V2X service, wherein the determination is based on at least one of:
a determination that the DSRC RSU supports the first V2X service; or
loading of the DSRC RSU; and
transmit, to the cellular RSU, an indication that the first V2X service is accepted.

### Claim 39 (depends on 38)

The apparatus of claim 38, wherein the information includes an indication of a second V2X service to be offloaded, wherein the processor is further configured to cause the DSRC RSU to:
determine not to accept the second V2X service, wherein the determination is based on at least one of:
a determination that the DSRC RSU does not support the second V2X service; or
the loading of the DSRC RSU.

### Claim 40 (depends on 39)

The apparatus of claim 39, wherein the processor is further configured to cause the DSRC RSU to transmit, to the UE, an offload message.

### Claim 41 (depends on 38)

The apparatus of claim 38, wherein the configuration information includes frequency and channel configuration.

### Claim 42

An apparatus of a user equipment device (UE), the apparatus comprising:
a processor configured to cause the UE to:
establish communication with a cellular roadside unit (RSU);
detect an event;
in response to the event, transmit, to the cellular RSU:
location information of the UE; and
a measurement report based on at least one measurement of a dedicated short range communication (DSRC) RSU;
receive, from the cellular RSU, an offload command including configuration information of the DSRC RSU; and
in response to the offload command:
synchronize with the DSRC RSU using the configuration information; and
exchange data with the DSRC RSU.

### Claim 43 (depends on 42)

The apparatus of claim 42, wherein the offload command further includes a time when offloading is to occur.

### Claim 44 (depends on 42)

The apparatus of claim 42, wherein the processor is further configured to cause the UE to:
transmit information about the DSRC RSU to a second UE.

### Claim 45 (depends on 42)

The apparatus of claim 42, wherein the processor is further configured to cause the UE to:
transmit, to the cellular RSU, a capability report.

### Claim 46 (depends on 42)

The apparatus of claim 42, wherein the event comprises a measurement reaching a threshold.

### Claim 47 (depends on 46)

The apparatus of claim 46, wherein the threshold is based on a service executing on the UE.