# US 11,122,592 B2 · 5G new radio with sharing between priority access license and general authorized access communications

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- Number: US 11,122,592 B2
- Document ID: US11122592B2
- Status: Granted
- Kind: B2
- Application number: 16/445,001
- Filed: 2019-06-18
- Published: 2019-12-26
- Granted: 2021-09-14
- Earliest claimed: 2018-06-20
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Aleksandar Damnjanovic; Arumugam Chendamarai Kannan; Yisheng Xue; Xiaoxia Zhang; Tamer Kadous
- Web page: https://patentgrep.com/patent/US11122592B2

## CPC

- H04W 72/566: of the information or information source or recipient
- H04W 74/0816: with collision avoidance
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)}
- H04W 52/281: {taking into account user or data type priority}
- 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
- H04W 72/56: based on priority criteria
- H04W 74/085: {collision avoidance}
- H04W 52/146: {Uplink power control}
- H04W 52/247: {where the output power of a terminal is based on a path parameter sent by another terminal}
- H04W 52/248: {where transmission power control commands are generated based on a path parameter}
- H04W 52/325: {Power control of control or pilot channels}
- H04W 74/02: Hybrid 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

Sharing between priority access license (PAL) and general authorized access (GAA) communications in 5G new radio (NR) systems in 3.5 GHz Spectrum Access System (SAS)/License Shared Access (LSA) operations is disclosed. A resource configuration may be defined that identifies a plurality of sound reference signal (SRS) resources including at least a sounding set of SRS resources and a coexistence set of SRS resources. When communication may occur between PAL entities, a base station transmits a trigger signal to a served UE. The UP transmits an SRS in response to the trigger signal using the coexistence set of SRS resources. The SRS over the coexistence set of resources may reserve communication on the shared communication channel.

## Claims

### Claim 1

A method of wireless communication, comprising:
obtaining, by a user equipment (UE), a resource configuration, wherein the resource configuration identifies a plurality of sound reference signal (SRS) resources including at least a sounding set of SRS resources and a coexistence set of SRS resources;
receiving, by the UE, a trigger signal from a serving base station over a shared spectrum shared between at least one or more priority license users;
transmitting, by the UE in response to the trigger signal, an SRS using the coexistence set of SRS resources; and
communicating, by the UE, with the serving base station.

### Claim 2 (depends on 1)

The method of claim 1, wherein the SRS is transmitted during a reservation slot of a current frame of the shared spectrum, wherein the reservation slot is associated with a priority access to the shared spectrum.

### Claim 3 (depends on 1)

The method of claim 1, wherein the trigger signal includes a communication grant that defines the communication with the serving base station.

### Claim 4 (depends on 1)

The method of claim 1, further including:
monitoring, by the UE without priority access to the shared spectrum, for one or more reservation signals transmitted during a reservation slot of a current frame of the shared spectrum by one or more network entities of a network operator having a priority access to the shared spectrum for the current frame, wherein the transmitting the SRS and the participating in communication occurs in one or more subsequent slots of the current frame in response to a failure to detect the one or more reservation signals.

### Claim 5 (depends on 4)

The method of claim 4, wherein the one or more reservation signals includes one or more of:
a sounding signal transmitted using the coexistence set of SRS resources by one or more neighboring UEs of the network operator; and
a reference signal transmitted by one or more neighboring base stations of the network operator.

### Claim 6 (depends on 1)

The method of claim 1, further including:
receiving, by the UE, a plurality of transmission power control messages including at least a sounding power control for transmission of a sounding signal using the sounding set of SRS resources and a coexistence power control for transmission of a coexistence signal using the coexistence set of SRS resources, wherein the SRS is transmitted according to the coexistence power control.

### Claim 7 (depends on 1)

The method of claim 1, wherein a first portion of the shared spectrum shared between the at least one or more priority license users is bandwidth partitioned from a second portion of the shared spectrum shared by one or more opportunistic general authorized users.

### Claim 8

An apparatus configured for wireless communication, the apparatus comprising:
at least one processor; and
a memory coupled to the at least one processor,
wherein the at least one processor is configured:
to obtain, by a user equipment (UE), a resource configuration, wherein the resource configuration identifies a plurality of sound reference signal (SRS) resources including at least a sounding set of SRS resources and a coexistence set of SRS resources;
to receive, by the UE, a trigger signal from a serving base station over a shared spectrum shared between at least one or more priority license users;
to transmit, by the UE in response to the trigger signal, an SRS using the coexistence set of SRS resources; and
to communicate, by the UE, with the serving base station.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the SRS is transmitted during a reservation slot of a current frame of the shared spectrum, wherein the reservation slot is associated with a priority access to the shared spectrum.

### Claim 10 (depends on 8)

The apparatus of claim 8, wherein the trigger signal includes a communication grant that defines the communication with the serving base station.

### Claim 11 (depends on 8)

The apparatus of claim 8, further including configuration of the at least one processor to monitor, by the UE without priority access to the shared spectrum, for one or more reservation signals transmitted during a reservation slot of a current frame of the shared spectrum by one or more network entities of a network operator having a priority access to the shared spectrum for the current frame, wherein the configuration to transmit the SRS and the configuration to participate in communication occurs in one or more subsequent slots of the current frame in response to a failure to detect the one or more reservation signals.

### Claim 12 (depends on 11)

The apparatus of claim 11, wherein the one or more reservation signals includes one or more of:
a sounding signal transmitted using the coexistence set of SRS resources by one or more neighboring UEs of the network operator; and
a reference signal transmitted by one or more neighboring base stations of the network operator.

### Claim 13 (depends on 8)

The apparatus of claim 8, further including configuration of the at least one processor to receive, by the UE, a plurality of transmission power control messages including at least a sounding power control for transmission of a sounding signal using the sounding set of SRS resources and a coexistence power control for transmission of a coexistence signal using the coexistence set of SRS resources, wherein the SRS is transmitted according to the coexistence power control.

### Claim 14 (depends on 8)

The apparatus of claim 8, wherein a first portion of the shared spectrum shared between the at least one or more priority license users is bandwidth partitioned from a second portion of the shared spectrum shared by one or more opportunistic general authorized users.