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EP-4740349-A1 - COLLISION RULES FOR MEASUREMENT GAPS

EP4740349A1EP 4740349 A1EP4740349 A1EP 4740349A1EP-4740349-A1

Abstract

Methods, systems, and devices for wireless communication are described. The method may include a user equipment (UE) transmitting first signaling indicating a capability of the UE to perform channel quality measurements on one or more reception frequency bands during a switching period that defines a duration for the UE to switch from transmitting using a first transmission frequency band to transmitting using a second transmission frequency band. Further, the method may include the UE receiving, based on the first signaling, an uplink grant scheduling the UE to transmit first uplink signaling using the first transmission frequency band and transmit second uplink signaling using the second transmission frequency band and performing, based on the uplink grant, the channel quality measurements on the one or more reception frequency bands.

Inventors

  • CAO, YIQING
  • HUANG, Chu-Hsiang
  • HAN, BIN

Assignees

  • QUALCOMM Incorporated

Dates

Publication Date
20260513
Application Date
20230704

Claims (20)

  1. A user equipment (UE) , comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to: transmit first signaling indicating a capability of the UE to perform channel quality measurements on one or more reception frequency bands during a switching period that defines a duration for the UE to switch from transmitting using a first transmission frequency band to transmitting using a second transmission frequency band; receive, based at least in part on the first signaling indicating the capability, an uplink grant scheduling the UE to transmit first uplink signaling using the first transmission frequency band and transmit second uplink signaling using the second transmission frequency band; and perform, based at least in part on the uplink grant, the channel quality measurements on the one or more reception frequency bands.
  2. The UE of claim 1, wherein the uplink grant indicates a first set of symbols allocated for transmission of the first uplink signaling and a second set of symbols allocated for transmission of the second uplink signaling, the first set of symbols associated with an earlier time slot than a time slot associated with the second set of symbols.
  3. The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit, prior to performing the channel quality measurements, the first uplink signaling using the first transmission frequency band during the first set of symbols; and transmit, after performing the channel quality measurements and based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, the second uplink signaling using the second transmission frequency band during a first subset of the second set of symbols, wherein the switching period comprises a second subset of the second set of symbols.
  4. The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit, prior to performing the channel quality measurements, the first uplink signaling using the first transmission frequency band during a first subset of the first set of symbols based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, wherein the switching period comprises a second subset of the first set of symbols; and transmit, after performing the channel quality measurements, the second uplink signaling using the second transmission frequency band during the second set of symbols.
  5. The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: refrain from transmitting one or both of the first uplink signaling or the second uplink signaling based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, wherein the switching period comprises at least a subset of the first set of symbols or the second set of symbols.
  6. The UE of claim 2, wherein, to perform the channel quality measurements, the one or more processors are individually or collectively operable to execute the code to cause the UE to: perform the channel quality measurements a first gap period after the switching period based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, wherein the switching period occurs after a last symbol of the first set of symbols.
  7. The UE of claim 6, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit second signaling indicating a set of gap periods comprising the first gap period, wherein the uplink grant is based at least in part on the set of gap periods.
  8. The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit the second uplink signaling after the switching period based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, wherein the switching period occurs a first gap period after performing the channel quality measurements.
  9. The UE of claim 8, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: transmit second signaling indicating one or more gap periods comprising the first gap period, wherein the uplink grant is based at least in part on the one or more gap periods.
  10. The UE of claim 1, wherein, to perform the channel quality measurements, the one or more processors are individually or collectively operable to execute the code to cause the UE to: perform the channel quality measurements during at least a portion of the switching period based at least in part on the capability indicating an ability of the UE to perform the channel quality measurements during the switching period.
  11. A network entity, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to: receive first signaling indicating a capability of a user equipment (UE) to perform channel quality measurements on one or more reception frequency bands during a switching period that defines a duration for the UE to switch from transmitting first uplink signaling using a first transmission frequency band to transmitting second uplink signaling using a second transmission frequency band; and transmit, based at least in part on the first signaling indicating the capability, an uplink grant scheduling the UE to transmit the first uplink signaling using the first transmission frequency band and transmit the second uplink signaling using the second transmission frequency band.
  12. The network entity of claim 11, wherein the uplink grant indicates a first set of symbols allocated for transmission of the first uplink signaling and a second set of symbols allocated for transmission of the second uplink signaling, the first set of symbols associated with an earlier time slot than a time slot associated with the second set of symbols.
  13. The network entity of claim 12, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive, prior to a measurement gap associated with performing the channel quality measurements, the first uplink signaling using the first transmission frequency band during the first set of symbols; and receive, after the measurement gap and based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, the second uplink signaling using the second transmission frequency band during a first subset of the second set of symbols, wherein the switching period comprises a second subset of the second set of symbols.
  14. The network entity of claim 12, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive, prior to a measurement gap associated with performing the channel quality measurements, the first uplink signaling using the first transmission frequency band during a first subset of the first set of symbols based at least in part on the capability indicating an inability of the UE to perform the channel quality measurements during the switching period, wherein the switching period comprises a second subset of the first set of symbols; and receive, after the measurement gap, the second uplink signaling using the second transmission frequency band during the second set of symbols.
  15. The network entity of claim 12, wherein the uplink grant further indicates that a last symbol of the first set of symbols occurs prior to the switching period and a measurement gap associated with performing the channel quality measurements occurs a first gap period after the switching period.
  16. The network entity of claim 15, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive second signaling indicating a set of gap periods comprising the first gap period, wherein the uplink grant is based at least in part on the set of gap periods.
  17. The network entity of claim 12, wherein the uplink grant further indicates that the switching period occurs prior to a first symbol of the second set of symbols and a measurement gap associated with performing the channel quality measurements ends a first gap period prior to the switching period.
  18. The network entity of claim 17, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to: receive second signaling indicating a set of gap periods comprising the first gap period, wherein the uplink grant is based at least in part on the set of gap periods.
  19. A method for wireless communications at a user equipment (UE) , comprising: transmitting first signaling indicating a capability of the UE to perform channel quality measurements on one or more reception frequency bands during a switching period that defines a duration for the UE to switch from transmitting using a first transmission frequency band to transmitting using a second transmission frequency band; receiving, based at least in part on the first signaling indicating the capability, an uplink grant scheduling the UE to transmit first uplink signaling using the first transmission frequency band and transmit second uplink signaling using the second transmission frequency band; and performing, based at least in part on the uplink grant, the channel quality measurements on the one or more reception frequency bands.
  20. The method of claim 19, wherein the uplink grant indicates a first set of symbols allocated for transmission of the first uplink signaling and a second set of symbols allocated for transmission of the second uplink signaling, the first set of symbols associated with an earlier time slot than a time slot associated with the second set of symbols.

Description

COLLISION RULES FOR MEASUREMENT GAPS FIELD OF TECHNOLOGY The following relates to wireless communication, including collision rules for measurement gaps. BACKGROUND Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) . In some examples, a UE may perform measurements on downlink signals received using one or more target reception bands to determine channel quality metrics of the one or more target reception bands. The UE may perform the measurements during a measurement gap and during this measurement gap, the UE may be unable to receive or transmit on serving bands. SUMMARY The described techniques relate to improved methods, systems, devices, and apparatuses that support collision rules for measurement gaps. For example, the described techniques provide for a user equipment (UE) or a network entity avoiding conflict between measurement gaps and transmission band switching periods when the  UE is scheduled to transmit consecutive uplink signaling using different transmission bands. In some examples, the network entity may receive first signaling from the UE that indicates capability information associated with the UE. The capability information may indicate a capability of the UE to perform channel quality measurements during a switching period that defines a duration for the UE to switching from transmitting during a first transmission frequency band to transmitting using a second transmission frequency band. Upon receiving the capability information, the network entity may transmit an uplink grant scheduling the UE to transmit first uplink signaling using the first transmission frequency band followed by second uplink signaling using the second transmission frequency band. Based on the uplink grant, the UE may perform the channel quality measurement on the one or more reception frequency bands. BRIEF DESCRIPTION OF THE DRAWINGS FIGs. 1 and 2 show examples of a wireless communications system that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIGs. 3A, 3B, 4A, 4B, and 5 show examples of a switching scheme that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIG. 6 shows an example of a process flow that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIGs. 7 and 8 show block diagrams of devices that support collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIG. 9 shows a block diagram of a communications manager that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIG. 10 shows a diagram of a system including a device that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIGs. 11 and 12 show block diagrams of devices that support collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIG. 13 shows a block diagram of a communications manager that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIG. 14 shows a diagram of a system including a device that supports collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. FIGs. 15 through 20 show flowcharts illustrating methods that support collision rules for measurement gaps in accordance with one or more aspects of the present disclosure. DETAILED DESCRIPTION In some examples, a user equipment (UE) may perform periodic or aperiodic measurements on downlink signals to determine a channel quality of a target frequency band. The UE may perform the measurements during measurement gaps and during the measurement gap, the UE may not transmit or receive on a serving band. Further, in some examples, a network entity may schedule the UE t