IP Library › Granted Patent US 12712773
Granted Patent B2
US 12712773 · App. 17/443,399 · Granted Aug 18, 2026

Flexible guard interval configurations

Inventors: Xiaoxia Zhang (San Diego, CA); Jun Ma (San Diego, CA); Morteza Soltani (San Diego, CA); Jing Sun (San Diego, CA); Raviteja Patchava (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04L27/2607H04L27/2605H04W72/23
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Quick Facts
Patent No.
US 12712773
App. No.
17/443,399
Granted
Aug 18, 2026
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving device may receive, from a first wireless communication device on a first communication channel, a first communication that is configured with at least one guard interval (GI) sequence of a first GI type. The receiving device may receive, from the first wireless communication device or a second wireless communication device on the first communication channel or a second communication channel, a second communication that is configured with at least one GI sequence of a second GI type. Numerous other aspects are described.

Claims (88)

1 . A first wireless communication device, comprising:

one or more antennas; and

one or more processors and one or more memories that store code for the one or more processors, the one or more processors configured to cause the first wireless communication device to:

transmit, to a second wireless communication device, a first guard interval (GI) configuration that indicates at least one GI sequence of a zero GI type,

wherein the zero GI type corresponds to GIs having no time duration;

transmit, to a third wireless communication device, a second GI configuration that indicates at least one GI sequence of a non-zero GI type,

wherein the non-zero GI type corresponds to GIs having a time duration;

receive, from the second wireless communication device, a first communication that is configured with the at least one GI sequence of the zero GI type; and

receive, from the third wireless communication device, a second communication that is configured with the at least one GI sequence of the non-zero GI type different than the first GI type,

wherein the first GI type or the second GI type is selected for a communication based at least in part on:

an availability of processing at the receiving device,

whether the communication is a low latency communication, or

whether a channel for the communication is a control channel.

2 . The first wireless communication device of claim 1 , wherein the one or more processors are further configured to cause the first wireless communication device to:

transmit, to the second wireless communication device, the second GI configuration that indicates the at least one GI sequence of the non-zero GI type.

3 . The first wireless communication device of claim 1 , wherein a first communication channel of the first communication comprises a physical downlink control channel.

4 . The first wireless communication device of claim 1 , wherein the first communication comprises an ultra-reliable low latency communication.

5 . The first wireless communication device of claim 1 , wherein the one or more processors are further configured to cause the first wireless communication device to:

determine that a symbol level processing criterion, associated with an availability of processing at the first wireless communication device, satisfies a processing threshold,

wherein the first communication is associated with the zero GI type based at least in part on the determination.

6 . The first wireless communication device of claim 1 , wherein the one or more processors are further configured to cause the first wireless communication device to:

determine an updated GI type; and

receive, from the second wireless communication device, a third communication in accordance with the updated GI type.

7 . The first wireless communication device of claim 1 , wherein the one or more processors are further configured to cause the first wireless communication device to:

determine an updated GI type; and

receive, from the third wireless communication device, a third communication in accordance with the updated GI type.

8 . The first wireless communication device of claim 1 , wherein the one or more processors are further configured to cause the first wireless communication device to:

receive a third GI configuration indicating a gap in each symbol of a plurality of symbols.

9 . A first wireless communication device, comprising:

one or more antennas; and

one or more processors and one or more memories that store code for the one or more processors, the one or more processors configured to cause the first wireless communication device to:

receive, from a second wireless communication device, a first guard interval (GI) configuration and a second GI configuration,

wherein the first GI configuration indicates at least one GI sequence of a zero GI type,

wherein the zero GI type corresponds to GIs having no time duration,

wherein the second GI configuration indicates at least one GI sequence of a non-zero GI type, and

wherein the non-zero GI type corresponds to GIs having a time duration;

transmit, to the second wireless communication device, a first communication that is configured with the at least one GI sequence of the zero GI type; and

transmit, to the second wireless communication device, a second communication that is configured with the at least one GI sequence of the non-zero GI type.

10 . The first wireless communication device of claim 9 , wherein a first communication channel of the first communication comprises a physical downlink control channel.

11 . The first wireless communication device of claim 9 , wherein the first communication comprises an ultra-reliable low latency communication.

12 . The first wireless communication device of claim 9 , wherein the one or more processors are further configured to cause the first wireless communication device to:

determine that a symbol level processing criterion, associated with an availability of processing at the first wireless communication device, satisfies a processing threshold,

wherein the first communication is associated with the zero GI type based at least in part on the determination.

13 . The first wireless communication device of claim 9 , wherein the one or more processors, to cause the first wireless communication device to transmit the first communication, are configured to cause the first wireless communication device to:

transmit the first communication on a first communication channel.

14 . The first wireless communication device of claim 13 , wherein the one or more processors, to cause the first wireless communication device to transmit the second communication, are configured to cause the first wireless communication device to:

transmit the second communication on the first communication channel.

15 . The first wireless communication device of claim 13 , wherein the one or more processors, to cause the first wireless communication device to transmit the second communication, are configured to cause the first wireless communication device to:

transmit the second communication on a second communication channel.

16 . A method of wireless communication performed by a first wireless communication device, comprising:

transmitting, to a second wireless communication device, a first guard interval (GI) configuration that indicates at least one GI sequence of a zero GI type,

wherein the zero GI type corresponds to GIs having no time duration;

transmitting, to a third wireless communication device, a second GI configuration that indicates at least one GI sequence of a non-zero GI type,

wherein the non-zero GI type corresponds to GIs having a time duration;

receiving, from the second wireless communication device, a first communication that is configured with the at least one GI sequence of the zero GI type; and

receiving, from the third wireless communication device, a second communication that is configured with the at least one GI sequence of the non-zero GI type.

17 . The method of claim 16 , further comprising:

transmitting, to the second wireless communication device, the second GI configuration that indicates the at least one GI sequence of the non-zero GI type.

18 . The method of claim 16 , wherein a first communication channel of the first communication comprises a physical downlink control channel.

19 . The method of claim 16 , wherein the first communication comprises an ultra-reliable low latency communication.

20 . The method of claim 16 , further comprising:

determining that a symbol level processing criterion, associated with an availability of processing at the first wireless communication device, satisfies a processing threshold,

wherein the first communication is associated with the zero GI type based at least in part on the determination.

21 . The method of claim 16 , further comprising:

determining an updated GI type; and

receiving, from the second wireless communication device, a third communication in accordance with the updated GI type.

22 . The method of claim 16 , further comprising:

determining an updated GI type; and

receiving, from the third wireless communication device, a third communication in accordance with the updated GI type.

23 . The method of claim 16 , further comprising:

receiving a third GI configuration indicating a gap in each symbol of a plurality of symbols.

24 . The method of claim 16 , further comprising:

selecting the zero GI type for the first communication based at least in part on availability of processing at the first wireless communication device.

25 . A method of wireless communication performed by a first wireless communication device, comprising:

receiving, from a second wireless communication device, a first guard interval (GI) configuration and a second GI configuration,

wherein the first GI configuration indicates at least one GI sequence of a zero GI type,

wherein the zero GI type corresponds to GIs having no time duration,

wherein the second GI configuration indicates at least one GI sequence of a non-zero GI type, and

wherein the non-zero GI type corresponds to GIs having a time duration;

transmitting, to the second wireless communication device, a first communication that is configured with the at least one GI sequence of the zero GI type; and

transmitting, to the second wireless communication device, a second communication that is configured with the at least one GI sequence of the non-zero GI type.

26 . The method of claim 25 , further comprising:

determining that a symbol level processing criterion, associated with an availability of processing at the first wireless communication device, satisfies a processing threshold,

wherein the first communication is associated with the zero GI type based at least in part on the determination.

27 . The method of claim 25 , wherein a first communication channel of the first communication comprises a physical downlink control channel.

28 . The method of claim 25 , wherein the first communication comprises an ultra-reliable low latency communication.

29 . The method of claim 25 , wherein the first communication is transmitted on a first communication channel and the second communication is transmitted on a second communication channel.

30 . The method of claim 25 , wherein the first communication and the second communication are transmitted on a same communication channel.