WO2025025162A1

WO2025025162A1 - Dynamic waveform switching for multiple uplink carrier transmissions

Info

Publication number: WO2025025162A1
Application number: PCT/CN2023/110733
Authority: WO
Inventors: Chunhai Yao; Ankit Bhamri; Chunxuan Ye; Dawei Zhang; Hong He; Seyed Ali Akbar Fakoorian; Wei Zeng
Original assignee: Apple Inc
Current assignee: Apple Inc
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2025-02-06
Anticipated expiration: 2026-02-02

Abstract

A user equipment (UE configured to configure transceiver circuitry to transmit, to a base station, dynamic waveform switching (DWS) capability information, decode, from signaling received from the base station, a DWS indication, enable, based on the DWS indication, a DWS configuration and perform one or more uplink transmissions to the base station using the DWS configuration.

Description

Dynamic Waveform Switching for Multiple Uplink Carrier Transmissions

Technical Field

This application relates generally to wireless communication systems, and in particular relates to dynamic waveform switching for multiple uplink carrier transmissions.

BACKGROUND

User equipment (UEs) may communicate with one or more base stations with various waveforms. For example, a Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) waveform may be appropriate for situations in which uplink coverage is limited because of its lower peak-to-average-power ratio (PAPR) compared to a Cyclic Prefix –Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform.

Existing implementations for UL waveform configuration switching use radio resource control (RRC) signaling. RRC imposes a large signaling constraint on waveform switching to DFT-S-OFDM. Enhancements to dynamic waveform switching for multi-carrier scheduling, dynamic waveform switching for multiple transmit receive point (mTRP) , and dynamic waveform switching for intra-band and inter-band carrier aggregation are needed in the field.

SUMMARY

Some exemplary embodiments are related to an apparatus of a user equipment (UE) , the apparatus having processing circuitry configured to configure transceiver circuitry to transmit, to a base station, dynamic waveform switching (DWS) capability information, decode, from signaling received from the base station, a DWS indication, enable, based on the DWS indication, a DWS configuration and perform one or more uplink transmissions to the base station using the DWS configuration.

Other exemplary embodiments are related to a processor configured to configure transceiver circuitry to transmit, to a base station, dynamic waveform switching (DWS) capability information, decode, from signaling received from the base station, a DWS indication, enable, based on the DWS indication, a DWS configuration and perform one or more uplink transmissions to the base station using the DWS configuration.

Brief Description of the Drawings

Fig. 1 shows an exemplary network arrangement according to various exemplary embodiments.

Fig. 2 shows an exemplary UE according to various exemplary embodiments.

Fig. 3 shows an exemplary base station, according to various exemplary embodiments.

Fig. 4 shows an exemplary method that is a generalized description of various exemplary embodiments.

Fig. 5 shows an example method for signaling a UE for DWS using a combination of RRC DWS enabling/disabling along with a DCI DWS field and a DCI indication field according to various exemplary embodiments.

Fig. 6 shows an example DWS DCI configured table indicating a waveform of all the co-scheduled cells according to a number of rows which contains combinations of indications for each scheduled cell according to various exemplary embodiments.

Detailed Description

The exemplary embodiments may be further understood with reference to the following description and the related appended drawings, wherein like elements are provided with the same reference numerals. The exemplary embodiments relate to dynamic waveform switching (DWS) . Specifically, DWS for multi-carrier scheduling, DWS for multiple transmit receive point (mTRP) , and DWS for intra-band and inter-band carrier aggregation.

The exemplary embodiments are described with regard to a user equipment (UE) . However, reference to a UE is merely provided for illustrative purposes. The exemplary embodiments may be utilized with any electronic component that may establish a connection to a network and is configured with the hardware, software, and/or firmware to exchange information and data with the network. Therefore, the UE as described herein is used to represent any electronic component.

The exemplary embodiments are also described with reference to a 5G New Radio (NR) network. However, it should be understood that the exemplary embodiments may also be implemented in other types of networks, including but not limited to LTE networks, future evolutions of the cellular protocol, or any other type of network.

The exemplary embodiments are described with regard to downlink control information (DCI) format 0_X. This exemplary DCI may be used to indicate whether DWS is enabled or disabled. In some examples, the DCI may include a Type-1 field, a Type-2 field, and/or a Type 3 field. However, reference to DCI format 0_X is merely provided for illustrative purposes. Other entities may refer to the DCI message using other names.

The exemplary embodiments are related to operations and logic for enhancements to dynamic waveform switching (DWS) as applied to several different networking scenarios. Specifically, the exemplary embodiments relate to DWS for multi-carrier scheduling, DWS for multiple transmit receive point (mTRP) , and DWS for intra-band and inter-band carrier aggregation.

Fig. 1 shows an exemplary network arrangement 100 according to various exemplary embodiments. The exemplary network arrangement 100 includes a UE 110. Those skilled in the art will understand that the UE 110 may be any type of electronic component that is configured to communicate via a network, e.g., mobile phones, tablet computers, desktop computers, smartphones, phablets, embedded devices, wearables, Internet of Things (IoT) devices (including connected vehicles) , etc. It should also be understood that an actual network arrangement may include any number of UEs being used by any number of users. Thus, the example of one UE 110 is merely provided for illustrative purposes.

The UE 110 may be configured to communicate with one or more networks. In the example of the network configuration 100, the network with which the UE 110 may wirelessly communicate is a 5G NR radio access network (RAN) 120. However, it should be understood that the UE 110 may also communicate with other types of networks (e.g., 5G cloud RAN, a next generation RAN (NG-RAN) , a legacy cellular network, etc. ) and the UE 110 may also communicate with networks over a wired connection. With regard to the exemplary embodiments, the UE 110 may establish a connection with the 5G NR RAN 120. Therefore, the UE 110 may have a 5G NR chipset to communicate with the NR RAN 120.

The 5G NR RAN 120 may be portions of a cellular network that may be deployed by a network carrier (e.g., Verizon, AT&T, T-Mobile, etc. ) . The RAN 120 may include cells or base stations that are configured to send and receive traffic from UEs that are equipped with the appropriate cellular chip set. In this example, the 5G NR RAN 120 includes the gNB 120A. However, reference to a gNB is merely provided for illustrative purposes, any appropriate base station or cell may be deployed (e.g., Node Bs, eNodeBs, HeNBs, eNBs, gNBs, gNodeBs, macrocells, microcells, small cells, femtocells, etc. ) .

Those skilled in the art will understand that any association procedure may be performed for the UE 110 to connect to the 5G NR RAN 120. For example, as discussed above, the 5G NR RAN 120 may be associated with a particular network carrier where the UE 110 and/or the user thereof has a contract and credential information (e.g., stored on a SIM card) . Upon detecting the presence of the 5G NR RAN 120, the UE 110 may transmit the corresponding credential information to associate with the 5G NR RAN 120. More specifically, the UE 110 may associate with a specific cell (e.g., gNB 120A) .

The network arrangement 100 also includes a cellular core network 130, the Internet 140, an IP Multimedia Subsystem (IMS) 150, and a network services backbone 160. The cellular core network 130 manages the traffic that flows between the cellular network and the Internet 140. The IMS 150 may be generally described as an architecture for delivering multimedia services to the UE 110 using the IP protocol. The IMS 150 may communicate with the cellular core network 130 and the Internet 140 to provide the multimedia services to the UE 110. The network services backbone 160 is in communication either directly or indirectly with the Internet 140 and the cellular core network 130. The network services backbone 160 may be generally described as a set of components (e.g., servers, network storage arrangements, etc. ) that implement a suite of services that may be used to extend the functionalities of the UE 110 in communication with the various networks.

Fig. 2 shows an exemplary UE 110 according to various exemplary embodiments. The UE 110 will be described with regard to the network arrangement 100 of Fig. 1. The UE 110 may represent any electronic device and may include a processor 205, a memory arrangement 210, a display device 215, an input/output (I/O) device 220, a transceiver 225, and other components 230. The other components 230 may include, for example, an audio input device, an audio output device, a battery that provides a limited power supply, a data acquisition device, ports to electrically connect the UE 110 to other electronic devices, sensors to detect conditions of the UE 110, etc.

The processor 205 may be configured to execute a plurality of engines for the UE 110. For example, the engines may include a DWS engine 235 for performing operations related to transmission of DWS capability information, enabling DWS on the UE, and performing one or more UL transmissions using DWS. These example operations will be described in greater detail below.

The above referenced engine being an application (e.g., a program) executed by the processor 205 is only exemplary. The functionality associated with the engines may also be represented as a separate incorporated component of the UE 110 or may be a modular component coupled to the UE 110, e.g., an integrated circuit with or without firmware. For example, the integrated circuit may include input circuitry to receive signals and processing circuitry to process the signals and other information. The engines may also be embodied as one application or separate applications. In addition, in some UEs, the functionality described for the processor 205 is split among two or more processors such as a baseband processor and an applications processor. The exemplary embodiments may be implemented in any of these or other configurations of a UE.

The memory arrangement 210 may be a hardware component configured to store data related to operations performed by the UE 110. The display device 215 may be a hardware component configured to show data to a user while the I/O device 220 may be a hardware component that enables the user to enter inputs. The display device 215 and the I/O device 220 may be separate components or integrated together such as a touchscreen. The transceiver 225 may be a hardware component configured to establish a connection with the 5G-NR RAN 120. Accordingly, the transceiver 225 may operate on a variety of different frequencies or channels (e.g., set of consecutive frequencies) .

The transceiver 225 includes circuitry configured to transmit and/or receive signals (e.g., control signals, data signals) . Such signals may be encoded with information implementing any one of the methods described herein. The processor 205 may be operably coupled to the transceiver 225 and configured to receive from and/or transmit signals to the transceiver 225. The processor 205 may be configured to encode and/or decode signals (e.g., signaling from a base station of a network) for implementing any one of the methods described herein.

Fig. 3 shows an exemplary base station 300 according to various exemplary embodiments. The base station 300 may represent the gNB 120A or any other access node through which the UE 110 may establish a connection and manage network operations.

The base station 300 may include a processor 305, a memory arrangement 310, an input/output (I/O) device 315, a transceiver 320, and other components 325. The other components 325 may include, for example, an audio input device, an audio output device, a battery, a data acquisition device, ports to electrically connect the base station 300 to other electronic devices and/or power sources, etc. The base station may be capable of mTRP transmission and reception with one or more UEs via one or more TRPs.

The processor 305 may be configured to execute a plurality of engines for the base station 300. For example, the engines may include a DWS engine 330 for performing operations related to receiving UE capability information and transmitting DWS configurations to a UE. These example operations will be described in greater detail below.

The memory 310 may be a hardware component configured to store data related to operations performed by the base station 300. The I/O device 315 may be a hardware component or ports that enable a user to interact with the base station 300. The transceiver 320 may be a hardware component configured to exchange data with the UE 110 and any other UE in the network arrangement 100. The transceiver 320 may operate on a variety of different frequencies or channels (e.g., set of consecutive frequencies) . Therefore, the transceiver 320 may include one or more components (e.g., radios) to enable the data exchange with the various networks and UEs.

The transceiver 320 includes circuitry configured to transmit and/or receive signals (e.g., control signals, data signals) . Such signals may be encoded with information implementing any one of the methods described herein. The processor 305 may be operably coupled to the transceiver 320 and configured to receive from and/or transmit signals to the transceiver 320. The processor 305 may be configured to encode and/or decode signals (e.g., signaling from a UE) for implementing any one of the methods described herein.

Fig. 4 shows an exemplary method 400 that is a generalized description of various exemplary embodiments. The method 400 should be understood to be a generalized depiction of the relations between the exemplary embodiments. Further details on specific exemplary embodiments shown generally in the method diagram 400 will be described below. The operations in method 400 are described with reference from both the standpoint of the UE 110 and the network (e.g., gNB 120A) .

In 405, the UE 110 transmits DWS capability information to the network. In some aspects, the transmission 405 may use a field in the exemplary DCI format 0_X. The capability information may comprise an indication of whether the UE 110 supports DWS per carrier, per band, per feature set, per feature set per combination, etc. In other aspects, the exemplary embodiments introduce a new component for the UE feature group for multi-carrier scheduling. Each of these exemplary techniques will be described in detail below after the description of the method diagram 400.

In 410, the gNB 120A enables DWS. In some aspects, the exemplary embodiments introduce techniques for enabling DWS using RRC signaling and/or DCI. Each of these exemplary techniques will be described in detail below after the description of the method diagram 400. In other aspects, the exemplary embodiments introduce a new field for DWS that may be incorporated into the exemplary DCI format 0_X. Various examples of how this exemplary DWS field may be used are provided in detail below.

In 415, the UE 110 performs one or more uplink transmissions using DWS. In some aspects, the exemplary embodiments introduce DWS configurations for various scenarios, such as if physical uplink shared channel (PUSCH) repetition is configured over mTRP, simultaneous multi-panel uplink transmission, intra-band uplink carrier aggregation (CA) , and inter-band uplink CA. Additionally, in some aspects the UE may transmit enhanced power headroom information for DWS to the carrier.

In a first aspect of the exemplary embodiments, operations and logic for enabling/disabling DWS are disclosed. In a first example of the first aspect, RRC signaling may be used by the network to enable/disable DWS for a scheduled cell of a UE (e.g., the gNB 120A may transmit RRC signals to the UE 110 to enable/disable DWS) .

In a first variant of the first example, the RRC signaling may enable/disable DWS for the UE 110 on a per-cell basis.

In a second variant of the first example, the RRC signaling may enable/disable DWS for the UE 110 on a per-cell group basis. For example, carriers in a same band may be allocated in a same cell group and may have DWS enabled/disabled together.

In a third variant of the first example, RRC signaling may enable/disable DWS for the UE 110 based on whether multi-cell scheduling is enabled or disabled. For example, if multi-cell scheduling is disabled, DWS may be enabled. In another example, if multi-cell scheduling is enabled, DWS may be disabled. It should be understood that in this variant, the enabling/disabling of DWS may be implicit or explicit. For example, in the explicit case both multi-cell scheduling and DWS enable/disable may be signaled in the RRC signaling. In the implicit case, the UE 110 may understand whether DWS is enabled based on the RRC signaling of the multi-cell scheduling as described above.

In a second example of the first aspect, downlink control information (DCI) may be used by the network to dynamically enable/disable DWS using a field in a newly proposed uplink DCI format (e.g., 0_X) . Those skilled in the art will understand that DCI may be used to signal various information to the UE 110, e.g., scheduling information for resources in the Physical Downlink Shared Channel PDSCH) , scheduling information for resources in the Physical Uplink Shared Channel (PUSCH) , etc. The new DCI format may include a field (e.g., a one bit field) to indicate whether DWS is enabled/disabled. This new uplink DCI format will be described in greater detail below.

In a third example of the first aspect, a combination of RRC signaling and DCI signaling may be used. In this third example, the DCI format may include a DCI DWS enable/disable field and a DCI DWS indication field in the newly proposed DCI format 0_X as described in greater detail below. It should be understood that RRC signaling has a longer processing time than DCI signaling and this third example may be used to account for this longer processing time. For example, the network may not want to disable DWS in general for the UE 110 but may want to disable DWS for a particular communication. If the UE used only RRC signaling, the UE would have to disable DWS for the communication UE and then re-enable DWS after the communication resulting in a long delay to disable/re-enable.

In the third example, DWS may be enabled by RRC signaling and remain enabled at the network level. However, in one example, the DCI DWS enable/disable field may indicate DWS is disabled. In this example, the DCI DWS enable/disable field indication overrides the RRC DWS indication. In addition, because the DCI DWS enable/disable field indicates that waveform switching is disabled, the UE 110 may ignore the DCI DWS indication field. In some examples, the DCI DWS indication field may not exist/be present when the DCI DWS enable/disable field indicates DWS is disabled.

In another example, if DWS is enabled by RRC signaling and the DCI DWS enable/disable field indicates DWS is enabled, the DCI DWS indication field may indicate the type of DWS enabled. The types of DWS that may be indicated by the DCI DWS indication field will be described in greater detail below.

In a further example, if DWS is disabled by RRC, there may be no DCI DWS enable/disable field and no DCI DWS indication field in the DCI.

Fig. 5 shows an example method 500 for signaling a UE for DWS using a combination of RRC DWS enabling/disabling along with a DCI DWS field and a DCI indication field according to various exemplary embodiments. The method diagram 500 may be understood to further describe the third example of the first aspect described above. Fig. 5 is described initially from the perspective of the gNB 120A. It should be noted that the gNB 120A is only exemplary, however, and other types of base stations or means of signaling to a UE may be utilized.

In 502, the gNB 120A determines whether to enable DWS via RRC signaling. If the gNB 120A disables DWS for the UE 110 by sending an RRC signal indicating DWS is disabled, the gNB 120A proceeds to 504. In 504, the gNB 120A does not activate a DCI DWS enable/disable field in DCI, nor does the gNB 120A activate a DCI DWS indication field in DCI and the method 500 is complete.

If the gNB 120A enables DWS for the UE 110 by sending an RRC signal indicating DWS is enabled, the gNB 120A proceeds to 506. In 506, the gNB 120A activates a DCI DWS enable/disable field in DCI and may activate a DCI DWS indication field in DCI.

Following the determination 506, the method diagram 500 switches to the perspective of the UE 110. In 508, the UE 110 determines whether the DCI DWS enable/disable field in DCI indicates that waveform switching is disabled. This may occur, for example, due to changing network conditions.

If the answer to 508 is no (e.g., the DCI DWS enable/disable field indicates DWS is enabled) , the UE 110 proceeds to 510 and follows the DCI DWS indication field in DCI, e.g., performs the type of DWS as indicated by the DCI DWS indication field.

If the answer to 508 is yes, the UE 110 proceeds to 512 and ignores the DCI DWS indication field in DCI. As described above, in some examples, if the DCI DWS enable/disable field indicates DWS is disabled, the DCI DWS indication field may not be present in the DCI.

In a fourth example of the first aspect, a combination of RRC DWS enablement/disablement along with a DCI DWS indication field may be utilized. In this example, if DWS is enabled by RRC, a DCI DWS indication field may be activated in DCI. On the other hand, if DWS is not enabled by RRC, then there may be no activation of a DCI DWS indication field in DCI. In contrast to the third example, there is no DCI DWS enable/disable field in this example, the enabling/disabling of DWS is exclusively the domain of the RRC signaling, the DCI is used to indicate the type of DWS if DWS is enabled.

In a second aspect of the exemplary embodiments, a new field for DWS in a new UL DCI format 0_X is disclosed. The second aspect of the exemplary embodiments is applicable to scenarios in which DWS is enabled by the network. The second aspect is described by reference to four examples. These four examples may be applicable to dynamically scheduled physical uplink shared channel (PUSCH) and also applied to configured grant type 2 PUSCH initial transmission/retransmission.

One of skill in the art will recognize that a type-1A field is a single field indicating common information for all the co-scheduled cells, that a type-1B field is a single field indicating separate information for each of co-scheduled cells via a joint indication, and that a type-2 field is a separate field for each of the co-scheduled cells.

In a first example of the second aspect, the DCI DWS indication field type may be a type-1A field. For example, a 1-bit DCI DWS indication field may indicate the waveform of all co-scheduled cells.

In a second example of the second aspect, the DCI DWS indication field type may be a type-1B field. In this example, the DCI DWS indication field may indicate the waveform of all the co-scheduled cells according to the number of rows in a configured table which contains combinations of indications for each scheduled cell.

Fig. 6 shows an example DWS DCI configured table 600 indicating a waveform of all the co-scheduled cells according to a number of rows which contains combinations of indications for each scheduled cell according to various exemplary embodiments. The diagram 600 should be understood to further describe the second example of the second aspect. In this example, cell 3 and cell 4 are in the same band and thus their waveform is indicated jointly. Further shown in this example, ‘1’ means that DWS is enabled and ‘0’ means that DWS is disabled though this association is only exemplary. The diagram 600 uses two bits total to dynamically indicate the DWS of cells 1, 2, 3, and 4. For example, in row 2, all the cells 1, 2, 3, and 4 have DWS enabled.

In a third example of the second aspect, the DCI DWS indication field type may be a type-2 field. In this example, the DWS field size is the number of scheduled cells with enabled DWS, with 1 bit used to indicate DWS status per cell.

In a fourth example of the second aspect, the DCI DWS indication field type may be configurable between type-1A and type-2. In this example, the bit-width of the DCI DWS indication field varies according to the configured field type (e.g., type-1A or type-2) .

In a third aspect of the exemplary embodiments, operations and logic for UE support of DWS with the proposed UL DCI format 0_X (e.g., 0_3) is disclosed herein.

In a first example of the third aspect, a new feature group (FG) for DWS for multi-carrier scheduling may be utilized. In a first variant, the UE 110 may report the DWS capability per carrier. In a second variant, the UE 110 may report the DWS capability per band. In a third variant, the UE 110 may report the DWS capability per feature set (FS) . In a fourth variant, the UE 110 may report the DWS capability per feature set per combination (FSPC) .

In a second example of the third aspect, a component may be added to the UE Feature Group of Multi-carrier scheduling (e.g., DWS switching for co-scheduled cell) . In this example, the granularity of DWS reporting is subjected to multi-carrier scheduling reporting granularity, e.g., DWS reporting has the same granularity as multi-carrier scheduling reporting granularity.

In a fourth aspect of the exemplary embodiments, operations and logic for DWS as applied to mTRP is disclosed herein.

In a first example of the fourth aspect, multi-TRP PUSCH may be scheduled by a single DCI if PUSCH repetition is configured over mTRP. In a first variant, a 1-bit field may be used to indicate the waveform to both TRPs. In a second variant, a 2-bit field may be used to indicate the waveform for each TRP individually. In a third variant, a 1-bit field is introduced in scheduling DCI to indicate the waveform to a specific TRP. In the third variant, the other TRP waveform is not changed.

In a second example of the fourth aspect, DWS may be performed with simultaneous multi-panel UL transmission (i.e., STxMP) . In a first variant, for single-DCI based STxMP space division multiplexing (SDM) schemes, a 1-bit field may be used to indicate the waveform to both TRPs. In a second variant, for single-DCI based STxMP single frequency network (SFN) schemes, a one-bit field may be used to indicate the waveform to both TRPs.

In a third variant of the second example, for multiple-DCI based STxMP, dynamic waveform switching may be configured for both TRPs, and a 1-bit DWS field may always be included in the scheduling DCI.

In a fourth variant of the second example, DWS may be configured per TRP. For example, one TRP may be configured with DWS, and another TRP may not be configured with DWS. The presence of a 1-bit DWS field is in the scheduling DCI may vary based on specific operator configuration.

In a third example, power headroom (PHR) may also be reported to the network from the UE 110 with DWS indications. In a first variant, for multiple-DCI based STxMP, two PHR together with the target waveform may be reported to both TRPs. In a second variant, for multiple-DCI based STxMP, two PHR together with the source waveform may be reported to both TRPs. In a third variant, for multiple-DCI based STxMP, four PHR together with the target waveform and the source waveform may be reported to both TRPs.

In a fifth aspect of the exemplary embodiments, operations and logic for DWS as applied to uplink carrier aggregation is disclosed herein.

In a first example of the fifth aspect, several variants for DWS for intra-band uplink carrier aggregation are disclosed. In a first variant, a 1-bit field may be used in scheduling DCI to indicate the waveform for a scheduled uplink carrier. In a second variant, the UE 110 may report the capability of supporting different waveforms for each carrier in a same frequency band. If the UE 110 does not have the capability of supporting different waveforms on different carriers, the indicated waveform for scheduled carriers should be the same. Otherwise, the UE 110 would infer a scheduling error on the part of the gNB 120A. If UE has the capability of supporting different waveforms on different carriers, the waveform for each carrier is configured according to the indication from each scheduling DCI.

In a second example of the fifth aspect, several variants for DWS for inter-band uplink carrier aggregation are disclosed. In a first variant, a 1-bit field may be used to indicate the waveform for a scheduled uplink carrier. In a second variant, a 1-bit field may be used to indicate the waveform for a scheduled uplink carrier, and the indicated waveform for the carriers in a cell group should be the same. Otherwise, if different waveforms are indicated for the different carriers in the cell group, the UE 110 would infer a scheduling error on the part of the gNB 120A and an RRC configured waveform will be applied to all the carriers in the cell group. The UE 110 may report preferred carriers in one cell group.

In a third example of the fifth aspect, various PHR enhancements for waveform switching over uplink carrier aggregation are disclosed. In a first variant, the UE 110 may report PHRs for both the source and target waveform for each carrier. In a second variant, the UE 110 may report PHRs for a target waveform for each carrier.

In other exemplary embodiments, the UE 110 may comprise an eight (8) transmission (Tx) UE with 2 codewords for UL transmission. In a first option, a 1-bit field is introduced in the scheduling DCI to indicate the waveform for both codewords. In a second option, a 2-bit field is introduced in the scheduling DCI to indicate the waveform for each codeword.

In a third option, the UE 110 reports a capability of whether the UE 110 supports independent indication of the waveform for both codewords. If the UE 110 does not support this capability, the first option is applied, e.g., a 1-bit field in the scheduling DCI indicates the waveform for both codewords. If UE 110 supports this capability, the second option is applied, e.g., a 2-bit field in the scheduling DCI indicates the waveform for each codeword.

Examples

In a first example, a method performed by a user equipment (UE) , comprising configuring transceiver circuitry to transmit, to a base station, dynamic waveform switching (DWS) capability information, decoding, from signaling received from the base station, a DWS indication, enabling, based on the DWS indication, a DWS configuration and performing one or more uplink transmissions to the base station using the DWS configuration.

In a second example, the method of the first example, wherein the DWS indication comprises a radio resource control (RRC) message comprising a per-cell DWS configuration.

In a third example, the method of the first example, wherein the DWS indication comprises a radio resource control (RRC) message comprising a DWS configuration for carriers sharing a band in a same cell group.

In a fourth example, the method of the first example, wherein the DWS indication comprises a radio resource control (RRC) message for a DWS configuration corresponding to a multi-cell scheduling status for one or more cells.

In a fifth example, the method of the first example, wherein the DWS indication comprises a downlink control information (DCI) message.

In a sixth example, the method of the first example, wherein the DWS indication comprises a radio resource control (RRC) message and a downlink control information (DCI) message, wherein the DCI message comprises a DWS enable/disable field and a DWS indication field.

In a seventh example, the method of the sixth example, further comprising ignoring the DWS indication field when the DWS enable/disable field indicates that DWS is disabled.

In an eighth example, the method of the first example, wherein the DWS indication comprises a radio resource control (RRC) message and a downlink control information (DCI) message comprising a DWS indication field.

In a ninth example, the method of the first example, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a 1-bit type-1A field indicating a waveform for all co-scheduled cells.

In a tenth example, the method of the first example, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a 2-bit type-1B field, wherein the 2-bit type-1B field indicates DWS information in a configured table.

In an eleventh example, the method of the first example, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a type-2 field indicating a waveform for each scheduled cell with DWS enabled.

In a twelfth example, the method of the first example, wherein the DWS indication further comprises a downlink control information (DCI) message comprising (i) a type-1A field indicating a waveform for all co-scheduled cells or (ii) a type-2 field indicating a waveform for each scheduled cell with DWS enabled.

In a thirteenth example, the method of the first example, wherein the DWS capability information comprises a per carrier DWS capability.

In a fourteenth example, the method of the first example, wherein the DWS capability information comprises a per band DWS capability.

In a fifteenth example, the method of the first example, wherein the DWS capability information comprises a per feature set DWS capability.

In a sixteenth example, the method of the first example, wherein the DWS capability information comprises a per feature set per combination DWS capability.

In a seventeenth example, the method of the first example, wherein the base station comprises a multi-transmission and reception point (mTRP) comprising two TRPs and physical uplink shared channel (PUSCH) repetition is enabled over mTRP.

In an eighteenth example, the method of the seventeenth example, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 1-bit field indicating a wave form for both of the two TRPs.

In a nineteenth example, the method of the seventeenth example, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 2-bit field indicating a separate waveform for each of the two TRPs.

In a twentieth example, the method of the seventeenth example, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 1-bit field indicating a waveform for only one of the two TRPs.

In a twenty first example, the method of the seventeenth example, wherein UE has simultaneous multi-panel (STxMP) uplink transmission capabilities.

In a twenty second example, the method of the twenty first example, wherein the DWS indication further comprises a single scheduling downlink control information (DCI) for space division multiplexing (SDM) comprising a 1-bit field indicating a waveform for both of the two TRPs.

In a twenty third example, the method of the twenty first example, wherein the DWS indication further comprises a single scheduling downlink control information (DCI) for single frequency networking (SFN) comprising a 1-bit field indicating a waveform for both of the two TRPs.

In a twenty fourth example, the method of the twenty first example, wherein the DWS indication further comprises multiple scheduling downlink control information (DCI) comprising a 1-bit field indicating a waveform for both of the two TRPs.

In a twenty fifth example, the method of the twenty first example, wherein the DWS indication further comprises multiple scheduling downlink control information (DCI) for each of the two TRPs in a 0_X format comprising a 1-bit field indicating a waveform, wherein the absence of the 1-bit field indicates that DWS is disabled.

In a twenty sixth example, the method of the twenty first example, wherein the DWS capability information further comprises one of (i) two power headroom (PHR) to the two TRPs with a target waveform, (ii) two PHR to the two TRPs with a source waveform, or (iii) four PHR to the two TRPs with the target waveform and the source waveform.

In a twenty seventh example, the method of the first example, wherein the DWS indication further comprises a scheduling downlink control information (DCI) for intra-band uplink carrier aggregation comprising a 1-bit field indicating a waveform for a scheduled uplink carrier.

In a twenty eighth example, the method of the twenty seventh example, wherein the indicated waveform from the DWS indication field for each carrier is the same if the UE does not support different waveforms for each carrier in a same frequency band.

In a twenty ninth example, the method of the twenty seventh example, wherein the DWS capability information further comprises one of (i) a power headroom (PHR) for a source waveform and a target waveform, or (ii) a PHR for the target waveform for each of a number of uplink carriers.

In a thirtieth example, the method of the first example, wherein the DWS indication further comprises a scheduling downlink control information (DCI) for inter-band uplink carrier aggregation comprising a 1-bit field indicating a waveform for a scheduled uplink carrier.

In a thirty first example, the method of the thirtieth example, wherein the indicated waveform relates to all uplink carriers in a cell group, wherein the cell group is configured according to carrier combinations for a cell group as reported by the UE.

In a thirty second example, the method of the thirtieth example, wherein the DWS capability information further comprises one of (i) a power headroom (PHR) for a source waveform and a target waveform, or (ii) a PHR for the target waveform for each of a number of uplink carriers.

In a thirty third example, the method of the first example, further comprising an eight transmission UE with two codewords uplink transmission, the scheduling downlink control information (DCI) comprising a 1-bit field indicating a waveform for both codewords.

In a thirty fourth example, the method of the first example, further comprising an eight transmission UE with two codewords uplink transmission, the scheduling downlink control information (DCI) comprising a 2-bit field indicating a waveform for two codewords, wherein each bit is associated with a corresponding waveform for one codeword.

In a thirty fifth example, the method of the first example, further comprising an eight transmission UE with two codewords uplink transmission, the scheduling downlink control information (DCI) comprising a 1 bit or 2-bit field indicating a waveform for two codewords according to a capability reported by the UE.

In a thirty sixth example, a processor configured to perform any of the methods of the first through thirty fifth examples.

In a thirty seventh example, a user equipment (UE) comprising a transceiver configured to communicate with a network and a processor communicativeley coupled to the transceiver and configured to perform any of the methods of the first through thirty fifth examples.

Those skilled in the art will understand that the above-described exemplary embodiments may be implemented in any suitable software or hardware configuration or combination thereof. An exemplary hardware platform for implementing the exemplary embodiments may include, for example, an Intel x86 based platform with compatible operating system, a Windows OS, a Mac platform and MAC OS, a mobile device having an operating system such as iOS, Android, etc. The exemplary embodiments of the above described method may be embodied as a program containing lines of code stored on a non-transitory computer readable storage medium that, when compiled, may be executed on a processor or microprocessor.

Although this application described various embodiments each having different features in various combinations, those skilled in the art will understand that any of the features of one embodiment may be combined with the features of the other embodiments in any manner not specifically disclaimed or which is not functionally or logically inconsistent with the operation of the device or the stated functions of the disclosed embodiments.

It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.

It will be apparent to those skilled in the art that various modifications may be made in the present disclosure, without departing from the spirit or the scope of the disclosure. Thus, it is intended that the present disclosure cover modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalent.

Claims

An apparatus of a user equipment (UE) , the apparatus comprising processing circuitry configured to:

configure transceiver circuitry to transmit, to a base station, dynamic waveform switching (DWS) capability information;

decode, from signaling received from the base station, a DWS indication;

enable, based on the DWS indication, a DWS configuration; and

perform one or more uplink transmissions to the base station using the DWS configuration.
The apparatus of claim 1, wherein the DWS indication comprises a radio resource control (RRC) message comprising a per-cell DWS configuration.
The apparatus of claim 1, wherein the DWS indication comprises a radio resource control (RRC) message comprising a DWS configuration for carriers sharing a band in a same cell group.
The apparatus of claim 1, wherein the DWS indication comprises a radio resource control (RRC) message for a DWS configuration corresponding to a multi-cell scheduling status for one or more cells.
The apparatus of claim 1, wherein the DWS indication comprises a downlink control information (DCI) message.
The apparatus of claim 1, wherein the DWS indication comprises a radio resource control (RRC) message and a downlink control information (DCI) message, wherein the DCI message comprises a DWS enable/disable field and a DWS indication field.
The apparatus of claim 6, wherein the processing circuitry is further configured to:

ignore the DWS indication field when the DWS enable/disable field indicates that DWS is disabled.
The apparatus of claim 1, wherein the DWS indication comprises a radio resource control (RRC) message and a downlink control information (DCI) message comprising a DWS indication field.
The apparatus of claim 1, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a 1-bit type-1A field indicating a waveform for all co-scheduled cells.
The apparatus of claim 1, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a 2-bit type-1B field, wherein the 2-bit type-1B field indicates DWS information in a configured table.
The apparatus of claim 1, wherein the DWS indication further comprises a downlink control information (DCI) message comprising a type-2 field indicating a waveform for each scheduled cell with DWS enabled.
The apparatus of claim 1, wherein the DWS indication further comprises a downlink control information (DCI) message comprising (i) a type-1A field indicating a waveform for all co-scheduled cells or (ii) a type-2 field indicating a waveform for each scheduled cell with DWS enabled.
The apparatus of claim 1, wherein the DWS capability information comprises a per carrier DWS capability.
The apparatus of claim 1, wherein the DWS capability information comprises a per band DWS capability.
The apparatus of claim 1, wherein the DWS capability information comprises a per feature set DWS capability.
The apparatus of claim 1, wherein the DWS capability information comprises a per feature set per combination DWS capability.
The apparatus of claim 1, wherein the base station comprises a multi-transmission and reception point (mTRP) comprising two TRPs and physical uplink shared channel (PUSCH) repetition is enabled over mTRP.
The apparatus of claim 17, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 1-bit field indicating a waveform for both of the two TRPs.
The apparatus of claim 17, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 2-bit field indicating a separate wave form for each of the two TRPs.
The apparatus of claim 17, wherein the DWS indication further comprises a scheduling downlink control information (DCI) comprising a 1-bit field indicating a waveform for only one of the two TRPs.