# US 11,445,408 B2 · High pathloss mode multiplexing

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- Number: US 11,445,408 B2
- Document ID: US11445408B2
- Status: Granted
- Kind: B2
- Application number: 16/806,731
- Filed: 2020-03-02
- Published: 2020-10-22
- Granted: 2022-09-13
- Earliest claimed: 2019-04-17
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM incorporated
- Inventors: Junyi Li; Juergen Cezanne; Vasanthan Raghavan
- Web page: https://patentgrep.com/patent/US11445408B2

## CPC

- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/0007: {by modifying the frame length}
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0028: {Variable division (indication of the divided channel H04L5/0092)}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- 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)}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling}
- H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04L 5/0092: {Indication of how the channel is divided}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04L 5/1469: {using time-sharing}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 84/047: {using dedicated repeater stations}
- H04W 88/04: adapted for relaying to or from another terminal or user
- H04W 88/085: {Access point devices with remote components}
- H04W 92/20: between access points
- 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)

## Abstract

Methods, systems, and devices for wireless communications are described. A wireless device may configure one or more first sets of resources of a radio frequency spectrum band associated with a first pathloss mode, and may configure one or more second sets of resources associated with a second pathloss mode. Each set of resources may be configured with some transmission timing parameters and frame structure, such that a transmission time interval (TTI) associated with the first pathloss mode may be different from the TTI associated with the second pathloss mode. The wireless device may communicate with a second wireless device using the one or more first sets of resources based on identifying a pathloss value is below an identified pathloss threshold. Additionally, the wireless device may communicate with a third device using the one or more second sets of resources based on identifying a pathloss value satisfies the identified pathloss threshold.

## Claims

### Claim 1

A method for wireless communications at a first wireless device, comprising:
configuring, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode;
configuring, at the first wireless device for communications with a third wireless device, one or more second sets of resources of the radio frequency spectrum band for communications associated with a second mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with the second mode;
communicating, according to the first length of the first synchronization signal block, with the second wireless device operating in the first mode via the one or more first sets of resources; and
communicating, according to the second length of the second synchronization signal block, with the third wireless device operating in the second mode via the one or more second sets of resources.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 3 (depends on 2)

The method of claim 2, wherein the first pathloss mode is a high pathloss mode and the second pathloss mode is a normal mode.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first, second, and third wireless devices are integrated access and backhaul (IAB) nodes operating in an IAB network.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
configuring a first subset of a set of communication links supported by the first wireless device for the first mode; and
configuring a second subset of the set of communication links supported by the first wireless device for the second mode.

### Claim 6 (depends on 5)

The method of claim 5, further comprising:
identifying a pathloss associated with the first subset of the set of communication links, wherein the first subset of the set of communication links is configured based at least in part on the identified pathloss.

### Claim 7 (depends on 1)

The method of claim 1, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with at least a portion of the one or more first sets of time resources and one or more second sets of frequency resources different from the one or more first sets of frequency resources.

### Claim 8 (depends on 1)

The method of claim 1, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with one or more second sets of time resources different from the one or more first sets of time resources and at least a portion of the one or more first sets of frequency resources.

### Claim 9 (depends on 1)

The method of claim 1, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with one or more second sets of time resources different from the one or more first sets of time resources and one or more second sets of frequency resources different from the one or more first sets of frequency resources.

### Claim 10 (depends on 1)

The method of claim 1, wherein the one or more first sets of resources and the one or more second sets of resources are the same.

### Claim 11 (depends on 10)

The method of claim 10, further comprising:
communicating with the second wireless device according to a first spatial stream; and
communicating with the third wireless device according to a second spatial stream different from the first spatial stream.

### Claim 12 (depends on 1)

The method of claim 1, further comprising:
communicating with the second wireless device operating in the first mode via a first communication link associated with the one or more first sets of resources, wherein the first communication link is configured for one of transmission or reception; and
communicating with the third wireless device operating in the second mode via a second communication link associated with the one or more second sets of resources, wherein the second communication link is configured for one of transmission or reception independent of the first communication link.

### Claim 13 (depends on 1)

The method of claim 1, further comprising:
configuring a set of gaps for communications of the first mode via the one or more first sets of resources;
configuring a set of transmission time intervals for communications of the second mode via the one or more second sets of resources; and
synchronizing the set of gaps corresponding to the first mode with the set of transmission time intervals corresponding to the second mode.

### Claim 14 (depends on 13)

The method of claim 13, further comprising:
transmitting a gap structure associated with the set of gaps, wherein the gap structure indicates respective locations and lengths corresponding to the set of gaps.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
transmitting the gap structure via a slot format indicator.

### Claim 16

A method for wireless communications at a first wireless device, comprising:
configuring, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with a second mode; and
communicating, according to the first length of the first synchronization signal block, with the second wireless device in the first mode using a communication link via the one or more first sets of resources.

### Claim 17 (depends on 16)

The method of claim 16, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 18 (depends on 16)

The method of claim 16, further comprising:
configuring one or more second sets of resources of the radio frequency spectrum band for communications associated with the second mode; and
communicating with the second wireless device in the second mode using a second communication link via the one or more second sets of resources.

### Claim 19 (depends on 18)

The method of claim 18, further comprising:
receiving, from the second wireless device, an indication to switch from the first mode to the second mode; and
communicating with the second wireless device in the second mode based at least in part on the indication.

### Claim 20 (depends on 18)

The method of claim 18, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with at least a portion of the one or more first sets of time resources and one or more second sets of frequency resources different from the one or more first sets of frequency resources.

### Claim 21 (depends on 18)

The method of claim 18, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with one or more second sets of time resources different from the one or more first sets of time resources and at least a portion of the one or more first sets of frequency resources.

### Claim 22 (depends on 18)

The method of claim 18, wherein:
the one or more first sets of resources are associated with one or more first sets of time resources and one or more first sets of frequency resources; and
the one or more second sets of resources are associated with one or more second sets of time resources different from the one or more first sets of time resources and one or more second sets of frequency resources different from the one or more first sets of frequency resources.

### Claim 23 (depends on 18)

The method of claim 18, wherein the one or more first sets of resources and the one or more second sets of resources are the same.

### Claim 24 (depends on 18)

The method of claim 18, further comprising:
receiving, from the second wireless device, a gap structure associated with one or more gaps for the first mode, wherein the gap structure indicates respective locations and lengths corresponding to the one or more gaps; and
communicating with the second wireless device based at least in part on the gap structure.

### Claim 25 (depends on 24)

The method of claim 24, further comprising:
receiving the gap structure via a slot format indicator.

### Claim 26

An apparatus for wireless communications at a first wireless device, comprising:
a processor; and
memory coupled to the processor, the processor configured to:
configure, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode;
configure, at the first wireless device for communications with a third wireless device, one or more second sets of resources of the radio frequency spectrum band for communications associated with a second mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with the second mode;
communicate, according to the first length of the first synchronization signal block, with the second wireless device operating in the first mode via the one or more first sets of resources; and
communicate, according to the second length of the second synchronization signal block, with the third wireless device operating in the second mode via the one or more second sets of resources.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 28 (depends on 27)

The apparatus of claim 27, wherein the first pathloss mode is a high pathloss mode and the second pathloss mode is a normal mode.

### Claim 29 (depends on 26)

The apparatus of claim 26, wherein the processor is further configured to:
configure a first subset of a set of communication links supported by the first wireless device for the first mode; and
configure a second subset of the set of communication links supported by the first wireless device for the second mode.

### Claim 30

An apparatus for wireless communications at a first wireless device, comprising:
a processor; and
memory coupled to the processor, the processor configured to:
configure, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with a second mode; and
communicate, according to the first length of the first synchronization signal block, with the second wireless device in the first mode using a communication link via the one or more first sets of resources.

### Claim 31 (depends on 30)

The apparatus of claim 30, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 32 (depends on 30)

The apparatus of claim 30, wherein the processor is further configured to:
configure one or more second sets of resources of the radio frequency spectrum band for communications associated with the second mode; and
communicate with the second wireless device in the second mode using a second communication link via the one or more second sets of resources.

### Claim 33 (depends on 32)

The apparatus of claim 32, wherein the processor is further configured to:
receive, from the second wireless device, an indication to switch from the first mode to the second mode; and
communicate with the second wireless device in the second mode based at least in part on the indication.

### Claim 34

An apparatus for wireless communications at a first wireless device, comprising:
means for configuring, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode;
means for configuring, at the first wireless device for communications with a third wireless device, one or more second sets of resources of the radio frequency spectrum band for communications associated with a second mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with the second mode;
means for communicating, according to the first length of the first synchronization signal block, with the second wireless device operating in the first mode via the one or more first sets of resources; and
means for communicating, according to the second length of the second synchronization signal block, with the third wireless device operating in the second mode via the one or more second sets of resources.

### Claim 35 (depends on 34)

The apparatus of claim 34, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 36 (depends on 35)

The apparatus of claim 35, wherein the first pathloss mode is a high pathloss mode and the second pathloss mode is a normal mode.

### Claim 37 (depends on 34)

The apparatus of claim 34, further comprising:
means for configuring a first subset of a set of communication links supported by the first wireless device for the first mode; and
means for configuring a second subset of the set of communication links supported by the first wireless device for the second mode.

### Claim 38

An apparatus for wireless communications at a first wireless device, comprising:
means for configuring, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with a second mode; and
means for communicating, according to the first length of the first synchronization signal block, with the second wireless device in the first mode using a communication link via the one or more first sets of resources.

### Claim 39 (depends on 38)

The apparatus of claim 38, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 40 (depends on 38)

The apparatus of claim 38, further comprising:
means for configuring one or more second sets of resources of the radio frequency spectrum band for communications associated with the second mode; and
means for communicating with the second wireless device in the second mode using a second communication link via the one or more second sets of resources.

### Claim 41

A non-transitory computer-readable medium storing code for wireless communications at a first wireless device, the code comprising instructions executable by a processor to:
configure, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode;
configure, at the first wireless device for communications with a third wireless device, one or more second sets of resources of the radio frequency spectrum band for communications associated with a second mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with the second mode;
communicate, according to the first length of the first synchronization signal block, with the second wireless device operating in the first mode via the one or more first sets of resources; and
communicate, according to the second length of the second synchronization signal block, with the third wireless device operating in the second mode via the one or more second sets of resources.

### Claim 42 (depends on 41)

The non-transitory computer-readable medium of claim 41, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 43 (depends on 42)

The non-transitory computer-readable medium of claim 42, wherein the first pathloss mode is a high pathloss mode and the second pathloss mode is a normal mode.

### Claim 44 (depends on 41)

The non-transitory computer-readable medium of claim 41, wherein the instructions are further executable by the processor to:
configure a first subset of a set of communication links supported by the first wireless device for the first mode; and
configure a second subset of the set of communication links supported by the first wireless device for the second mode.

### Claim 45

A non-transitory computer-readable medium storing code for wireless communications at a first wireless device, the code comprising instructions executable by a processor to:
configure, at the first wireless device for communications with a second wireless device, one or more first sets of resources of a radio frequency spectrum band for communications associated with a first mode, wherein a first length of a first synchronization signal block associated with the first mode is different from a second length of a second synchronization signal block associated with a second mode; and
communicate, according to the first length of the first synchronization signal block, with the second wireless device in the first mode using a communication link via the one or more first sets of resources.

### Claim 46 (depends on 45)

The non-transitory computer-readable medium of claim 45, wherein the first mode is a first pathloss mode and the second mode is a second pathloss mode.

### Claim 47 (depends on 45)

The non-transitory computer-readable medium of claim 45, wherein the instructions are further executable by the processor to:
configure one or more second sets of resources of the radio frequency spectrum band for communications associated with the second mode; and
communicate with the second wireless device in the second mode using a second communication link via the one or more second sets of resources.