# US 11,310,813 B2 · Maximum channel occupancy time sharing and co-existence

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- Number: US 11,310,813 B2
- Document ID: US11310813B2
- Status: Granted
- Kind: B2
- Application number: 16/490,260
- Filed: 2018-04-02
- Published: 2020-01-23
- Granted: 2022-04-19
- Earliest claimed: 2017-03-31
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Wenting Chang; Jeongho Jeon; Huaning Niu; Salvatore Talarico; Qiaoyang Ye; Jinyu Zhang
- Web page: https://patentgrep.com/patent/US11310813B2

## CPC

- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/1268: of uplink data flows
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0076: {Allocation utility-based}
- H04L 5/0082: {at predetermined intervals}
- H04L 5/0096: {Indication of changes in allocation}
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- Y02D 30/70: in wireless communication networks
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process one or more configuration transmissions from the eNB carrying one or more parameters for Grantless Uplink (GUL) transmission. The second circuitry may be operable to determine one or more GUL subframes of an acquired Maximum Channel Occupancy Time (MCOT) on time-domain resources allocated for GUL transmission from the UE. The third circuitry may be operable to generate a GUL transmission during the one or more GUL subframes of the acquired MCOT in accordance with the one or more parameters for GUL transmission.

## Claims

### Claim 1

A User Equipment (UE) operable to communicate with a base station (BS) on a wireless network, comprising:
one or more processors to:
process one or more configuration transmissions from the BS carrying one or more parameters for Grantless Uplink (GUL) transmission;
determine one or more GUL subframes of an acquired Maximum Channel Occupancy Time (MCOT) on time-domain resources allocated for GUL transmission from the UE; and
generate a GUL transmission during the one or more GUL subframes of the acquired MCOT in accordance with the one or more parameters for GUL transmission, wherein the GUL transmission comprises information corresponding to the acquired MCOT, and
an interface for receiving configuration transmissions from a receiving circuitry and for sending GUL transmissions to a transmission circuitry.

### Claim 2 (depends on 1)

The UE of claim 1,
wherein the one or more GUL subframes of the acquired MCOT are reserved subframes that overlap with at least one of a Discovery Reference Signal (DRS) window and a Physical Random Access Channel (PRACH).

### Claim 3 (depends on 1)

The apparatus UE of claim 1,
wherein the GUL transmission comprises a sharing indicator having a value selected from:
a first value indicating that a subframe N+2 can be shared, and that a remaining portion of the acquired MCOT starting from subframe N+2 comprises 8 subframes;
a second value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 7 subframes;
a third value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 6 subframes;
a fourth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 5 subframes;
a fifth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 4 subframes;
a sixth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 3 subframes;
a seventh value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 2 subframes; and
an eighth value indicating that the remaining portion of the acquired MCOT starting from subframe N+2 cannot be shared.

### Claim 4 (depends on 3)

The UE of claim 3, wherein the one or more processors are to:
generate a Grantless Uplink Control Information (G-UCI) transmission carrying the sharing indicator.

### Claim 5 (depends on 1)

The apparatus UE of claim 1,
wherein the GUL transmission comprises at least one of: a first indicator of a number of GUL subframes before an ending of a burst;
and a second indicator for a number of GUL subframes that can be shared with the BS.

### Claim 6 (depends on 1)

The apparatus UE of claim 1,
wherein the GUL transmission comprises a joint indicator of both a number of GUL subframes before an ending of a burst and a number of GUL subframes that can be shared with the BS.

### Claim 7 (depends on 2)

The UE of claim 2, wherein the GUL transmission is generated between an end of the one or more reserved subframes and an end of the one or more GUL subframes of the acquired MCOT.

### Claim 8 (depends on 3)

The UE of claim 3, wherein the GUL transmission is generated before a beginning of the reserved subframes.

### Claim 9 (depends on 1)

The UE of claim 1, wherein the information corresponding to the acquired MCOT comprises an indication of remaining MCOT.

### Claim 10 (depends on 1)

The UE of claim 1, wherein the information corresponding to the acquired MCOT comprises an indication of a GUL boundary.

### Claim 11

A non-transitory computer readable medium having machine executable instructions that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a base station (BS) on a wireless network to perform operations comprising:
processing one or more configuration transmissions from the BS carrying one or more parameters for Grantless Uplink (GUL) transmission;
determining one or more GUL subframes of an acquired Maximum Channel Occupancy Time (MCOT) on time-domain resources allocated for GUL transmission from the UE; and
generating a GUL transmission during the one or more GUL subframes of the acquired MCOT in accordance with the one or more parameters for GUL transmission, wherein the GUL transmission comprises information corresponding to the acquired MCOT.

### Claim 12 (depends on 11)

The non-transitory computer readable medium of claim 11,
wherein the one or more GUL subframes of the acquired MCOT are reserved subframes that overlap with at least one of a Discovery Reference Signal (DRS) window and a Physical Random Access Channel (PRACH).

### Claim 13 (depends on 11)

The machine readable storage media non-transitory computer readable medium of claim 11,
wherein the GUL transmission comprises a sharing indicator having a value selected from:
a first value indicating that a subframe N+2 can be shared, and that a remaining portion of the acquired MCOT starting from subframe N+2 comprises 8 subframes;
a second value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 7 subframes;
a third value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 6 subframes;
a fourth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 5 subframes;
a fifth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 4 subframes;
a sixth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 3 subframes;
a seventh value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 2 subframes; and
an eighth value indicating that the remaining portion of the acquired MCOT starting from subframe N+2 cannot be shared.

### Claim 14 (depends on 13)

The machine readable storage media non-transitory computer readable medium of claim 13, the operations further comprising:
generating a Grantless Uplink Control Information (G-UCI) transmission carrying the sharing indicator.

### Claim 15 (depends on 11)

The non-transitory computer readable medium of claim 11,
wherein the GUL transmission comprise at least one of: a first indicator of a number of GUL subframes before an ending of a burst;
and a second indicator for a number of GUL subframes that can be shared with the BS.

### Claim 16 (depends on 11)

The machine readable storage media non-transitory computer readable medium of claim 11,
wherein the or GUL transmission comprises a joint indicator of both a number of GUL subframes before an ending of a burst and a number of GUL subframes that can be shared with the BS.

### Claim 17

A method comprising:
processing, by a user equipment (UE), one or more configuration transmissions from a base station (BS) carrying one or more parameters for Grantless Uplink (GUL) transmission;
determining, by the UE, one or more GUL subframes of an acquired Maximum Channel Occupancy Time (MCOT) on time-domain resources allocated for GUL transmission from the UE; and
generating, by the UE, a GUL transmission during the one or more GUL subframes of the acquired MCOT in accordance with the one or more parameters for GUL transmission, wherein the GUL transmission comprises information corresponding to the acquired MCOT.

### Claim 18 (depends on 17)

The method of claim 17,
wherein the one or more GUL subframes of the acquired MCOT are reserved subframes that overlap with at least one of a Discovery Reference Signal (DRS) window and a Physical Random Access Channel (PRACH).

### Claim 19 (depends on 17)

The method of claim 17,
wherein the GUL transmission comprises a sharing indicator having a value selected from:
a first value indicating that a subframe N+2 can be shared, and that a remaining portion of the acquired MCOT starting from subframe N+2 comprises 8 subframes;
a second value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 7 subframes;
a third value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 6 subframes;
a fourth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 5 subframes;
a fifth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 4 subframes;
a sixth value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 3 subframes;
a seventh value indicating that the subframe N+2 can be shared, and that the remaining portion of the acquired MCOT starting from subframe N+2 comprises 2 subframes; and
an eighth value indicating that the remaining portion of the acquired MCOT starting from subframe N+2 cannot be shared.

### Claim 20 (depends on 19)

The method of claim 19, further comprising generating a Grantless Uplink Control Information (G-UCI) transmission carrying the sharing indicator.

### Claim 21 (depends on 17)

The method of claim 17,
wherein GUL transmission comprise at least one of: a first indicator of a number of GUL subframes before an ending of a burst;
and a second indicator for a number of GUL subframes that can be shared with the BS.

### Claim 22 (depends on 17)

The method of claim 17,
wherein the GUL transmission comprises a joint indicator of both a number of GUL subframes before an ending of a burst and a number of GUL subframes that can be shared with the BS.

### Claim 23 (depends on 18)

The method of claim 18, wherein the GUL transmission is generated in one or more subframes outside the reserved subframes and continues within the DRS window after presence of a DRS is detected.
