# US 2018/0324820 A1 · Device and Method of Handling Scheduling Request for Logical Channel

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- Number: US 2018/0324820 A1
- Document ID: US20180324820A1
- Status: Published application
- Kind: A1
- Application number: 15/970,835
- Filed: 2018-05-03
- Published: 2018-11-08
- Earliest claimed: 2017-05-05
- Assignees: HTC Corporation
- Applicants: HTC Corporation
- Inventors: Shiang-Rung Ye
- Web page: https://patentgrep.com/patent/US20180324820A1

## CPC

- H04W 72/12: Wireless traffic scheduling
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/56: based on priority criteria
- H04W 74/0833: Random access procedures, e.g. with 4-step access
- 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

A communication device for handling a scheduling request (SR) for a logical channel (LC) comprises a storage device storing instructions of transmitting a first SR for a fist LC to a network and starting a first sr-ProhibitTimer associated to the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is not running; not transmitting the first SR for the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is running; transmitting a second SR for a second LC to the network and starting a second sr-ProhibitTimer associated to the second LC, when the second SR is triggered by the second LC and the second sr-ProhibitTimer is not running; and not transmitting the second SR triggered by the second LC, when the second SR is triggered by the second LC and the second sr-ProhibitTimer is running.

## Claims

### Claim 1

A communication device for handling a scheduling request (SR) for a logical channel (LC), comprising:
a storage device; and
a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configured to execute instructions of:
transmitting a first SR for a fist LC to a network and starting a first sr-ProhibitTimer associated to the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is not running;
not transmitting the first SR for the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is running;
transmitting a second SR for a second LC to the network and starting a second sr-ProhibitTimer associated to the second LC, when the second SR is triggered by the second LC and the second sr-ProhibitTimer is not running; and
not transmitting the second SR triggered by the second LC, when the second SR is triggered by the second LC and the second sr-ProhibitTimer is running.

### Claim 2 (depends on 1)

The communication device of claim 1, wherein the first LC belongs to a first LC group (LCG), and the second LC belongs to a second LCG.

### Claim 3 (depends on 2)

The communication device of claim 2, wherein a third LC belongs to the first LCG, and the instructions further comprise:
transmitting a third SR for the third LC and starting the first sr-ProhibitTimer associated to the first LC, when the third SR is triggered by the third LC and the first sr-ProhibitTimer is not running; and
not transmitting the third SR triggered by the third LC, when the third SR is triggered by the third LC and the first sr-ProhibitTimer is running.

### Claim 4 (depends on 1)

The communication device of claim 1, wherein a first SR configuration is configured for the first LC by the network, and a second SR configuration is configured for the second LC by the network.

### Claim 5 (depends on 4)

The communication device of claim 4, wherein the first SR is transmitted via a first resource indicated in the first SR configuration, and the second SR is transmitted via a second resource indicated in the second SR configuration.

### Claim 6 (depends on 5)

The communication device of claim 5, wherein the first LC is configured with a first priority, and the second LC is configured with a second priority.

### Claim 7 (depends on 6)

The communication device of claim 6, wherein the first SR is transmitted via the first resource and the second SR is not transmitted, when the first priority is higher than the second priority and the first resource and the second resource are both available.

### Claim 8 (depends on 1)

The communication device of claim 1, wherein the instructions further comprise:
releasing at least one resource for transmitting the first SR and the second SR, if a number of at least one retransmission of the first SR and the second SR is greater than a value.

### Claim 9 (depends on 1)

The communication device of claim 1, wherein the instructions further comprise:
releasing at least one resource for transmitting at least one sounding reference signal (SRS), if a number of at least one retransmission of the first SR and the second SR is greater than a value.

### Claim 10 (depends on 1)

The communication device of claim 1, wherein the instructions further comprise:
clearing at least one downlink (DL) assignment and at least one uplink (UL) grant, if a number of at least one retransmission of the first SR and the second SR is greater than a value.

### Claim 11 (depends on 1)

The communication device of claim 1, wherein the instructions further comprise:
initiating a random access procedure with the network, if a number of at least one retransmission of the first SR and the second SR is greater than a value.

### Claim 12 (depends on 1)

The communication device of claim 1, wherein the first LC is for transmitting non-Ultra-reliable and Low Latency Communication (non-URLLC) traffic, and the second LC is for transmitting URLLC traffic.

### Claim 13

A communication device for handling a transmission of a scheduling request (SR) for a logical channel (LC), comprising:
a storage device; and
a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configured to execute instructions of:
transmitting a first SR for a fist LC to a network and starting a first sr-ProhibitTimer associated to the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is not running;
not transmitting the first SR for the first LC, when the first SR is triggered by the first LC and the first sr-ProhibitTimer is running; and
transmitting a second SR for a second LC to the network without starting a second sr-ProhibitTimer associated to the second LC, when the second SR is triggered by the second LC.

### Claim 14 (depends on 13)

The communication device of claim 13, wherein the first LC belongs to a first LC group (LCG), and the second LC belongs to a second LCG.

### Claim 15 (depends on 13)

The communication device of claim 13, wherein the first LC is for transmitting non-Ultra-reliable and Low Latency Communication (non-URLLC) traffic, and the second LC is for transmitting URLLC traffic.
