US-12621815-B2 - Bandwidth part configuration based on use case

Abstract

A method for a network node to adaptively configure bandwidth parts, BWPs, for a wireless device, WD, is provided. The method includes selecting at least one use case to be assigned to at least one BWP, the selecting being based at least in part on a WD context. The method further includes adaptively configuring at least one BWP for the WD based on the selected at least one use case. In addition, a method for a WD supporting communication with a network node is provided. Further, corresponding apparatuses for the network node and the WD are provided.

Inventors

• Xiaoming Lai
• Hatem ABOU-ZEID

Assignees

• TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Dates

Publication Date

20260505

Application Date

20200813

Claims (20)

1. 1 . A method for a network node to adaptively configure bandwidth parts, BWPs, for a wireless device, WD, the method comprising: selecting at least one use case to be assigned to at least one BWP, the selecting being based at least in part on a WD context, selecting the at least one use case being further based on a use case priority, the use case priority including at least one of: a predefined importance of the at least one use case, and a quality of service, QoS, threshold and, when a measurement condition for a use case is met, updating priorities of the at least one use case by one or more of: updating to predefined levels and replacing a lowest priority use case with the use case, and, when the measurement condition for the use case is not met, updating the priority of the use case to a lower priority; and adaptively configuring at least one BWP for the WD based on the selected at least one use case.
2. 2 . The method of claim 1 , further including: configuring the WD to communicate with the network node utilizing at least one preconfigured BWP.
3. 3 . The method of claim 1 , further including: determining the WD context, the WD context being based at least in part on at least one of: received signals from the WD; and an estimated WD context, the estimated WD context being estimated by the network node based at least on one of a monitoring scheduling behavior to WD and the received signals from the WD.
4. 4 . The method of claim 1 , wherein adaptively configuring at least one BWP for the WD further includes: assigning the at least one use case to the at least one BWP; and transmitting the at least one BWP to the WD.
5. 5 . The method of claim 4 , wherein the at least one BWP is transmitted to the WD via a predefined message type, the at least one BWP including a BWP configuration associated with the at least one use case.
6. 6 . The method of claim 1 , further including: determining an active BWP in current use for communication between the network node and the WD; selecting a next BWP from the at least one adaptively configured BWP based on the WD context; switching the active BWP by making the next BWP the active BWP for communication between the network node and the WD; and transmitting a signal to the WD based on the active BWP, the transmitted signal identifying at least the next BWP.
7. 7 . The method of claim 6 , wherein switching the active BWP includes switching the active BWP using downlink control information, DCI.
8. 8 . The method of claim 6 , wherein selecting a next BWP is further based on at least a trigger threshold predefined in the selected at least one use case.
9. 9 . A method for a wireless device, WD, supporting communication with a network node, the method comprising: receiving a signal having at least one adaptively configured BWP based on at least one use case and a WD context, the at least one use case being selected based on a use case priority, the use case priority including at least one of: a predefined importance of the at least one use case, and a quality of service, QoS, threshold and, when a measurement condition for a use case is met, updating priorities of the at least one use case by one or more of: updating to predefined levels and replacing a lowest priority use case with the use case, and, when the measurement condition for the use case is not met, updating the priority of the use case to a lower priority; and storing the at least one adaptively configured BWP for communication with the network node.
10. 10 . The method of claim 9 , further including: receiving a configuration, the configuration including at least one preconfigured BWP; and configuring the WD based on the configuration to communicate with the network node utilizing the at least one preconfigured BWP.
11. 11 . The method of claim 9 , wherein the signal having at least one adaptively configured BWP is received via a predefined message type.
12. 12 . The method of claim 11 , further including: receiving a signal by an active BWP identifying at least a next BWP; retrieving an adaptively configured BWP based at least on the next BWP; and switching to the retrieved actively configured BWP for communication between the WD and the network node.
13. 13 . The method of claim 12 , wherein switching to the retrieved actively configured BWP is based at least on downlink control information, DCI.
14. 14 . The method of claim 12 , wherein identifying at least a next BWP is based at least on a trigger threshold predefined in at least one use case associated with the next BWP.
15. 15 . A network node configured to adaptively configure bandwidth parts, BWPs, for a wireless device, WD, the network node comprising: processing circuitry, the processing circuitry having a processor and a memory, the processing circuitry configured to: select at least one use case to be assigned to at least one BWP, the selecting being based at least in part on a WD context, selecting the at least one use case being further based on a use case priority, the use case priority including at least one of: a predefined importance of the at least one use case, and a quality of service, QoS, threshold and, when a measurement condition for a use case is met, updating priorities of the at least one use case by one or more of: updating to predefined levels and replacing a lowest priority use case with the use case, and, when the measurement condition for the use case is not met, updating the priority of the use case to a lower priority; and adaptively configure at least one BWP for the WD based on the selected at least one use case.
16. 16 . The network node of claim 15 , wherein the processing circuitry is further configured to: configure the WD to communicate with the network node utilizing at least one preconfigured BWP.
17. 17 . The network node of claim 15 , wherein the processing circuitry is further configured to: determine the WD context, the WD context being based at least in part on at least one of: received signals from the WD; and an estimated WD context, the estimated WD context being estimated by the network node based at least on one of a monitoring scheduling behavior to WD and the received signals from the WD.
18. 18 . The network node of claim 15 , wherein adaptively configuring at least one BWP for the WD further includes: assigning the at least one use case to the at least one BWP; and causing transmission of the at least one BWP to the WD.
19. 19 . The network node of claim 18 , wherein the at least one BWP is caused to be transmitted to the WD via a predefined message type, the at least one BWP including a BWP configuration associated with the at least one use case.
20. 20 . The network node of claim 15 , wherein the processing circuitry is further configured to: determine an active BWP in current use for communication between the network node and the WD; select a next BWP from the at least one adaptively configured BWP based on the WD context; switch the active BWP by making the next BWP the active BWP for communication between the network node and the WD; and cause transmission of a signal to the WD based on the active BWP, the transmission of the signal identifying at least the next BWP.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a Submission Under 35 U.S.C. § 371 for U.S. National Stage Patent Application of International Application Number: PCT/IB2020/057642, filed Aug. 13, 2020 entitled, “ADAPTIVE ALGORITHMS FOR BANDWIDTH PART CONFIGURATION TO ENABLE FAST WIRELESS DEVICE RECONFIGURATION,” the entirety of which is incorporated herein by reference. TECHNICAL FIELD Wireless communication and in particular, apparatuses and methods for adaptively configuring bandwidth part to enable fast wireless device reconfiguration in New Radio. BACKGROUND Radio access technologies, such as those provided based on standards promulgated by the 3rd Generation Partnership Project (3GPP), include technologies such as Long Term Evolution (LTE) and New Radio (NR) (also referred to as 5G). With the introduction of NR, a bandwidth parts (BWP) concept is also introduced. The concept of BWP enables flexibility in how resources are assigned in a carrier. As shown in FIGS. 1 and 2, with BWP, multiple, different signal types can be sent in a bandwidth. Some of the benefits of BWPs may include: 1. Supporting a narrowband wireless device (WD) on a large carrier;2. Operating a carrier with multiple numerologies;3. Allowing bandwidth (BW) adaptation for WD power saving; and4. Allowing Radio Resource Control (RRC) reconfiguration to become fast through BWP-based Downlink Control Information (DCI) switching. These benefits may be obtained without a need for bandwidth change. Based on the 3GPP standards, a WD can be configured up to four uplink (UL) and four downlink (DL) BWPs, but only one BWP is active at a given time. Each BWP may be configured using RRC reconfiguration message before the BWP can be switched to be active. An example WD setup sequence is shown in FIG. 3. One disadvantage of switching by RRC reconfiguration and timer is that the switching takes longer than other methods. SUMMARY The present disclosure describes intelligent apparatuses and methods for determining and coordinating use cases to set up BWPs adaptively and dynamically, so that usage of the BWP may be maximized and RRC overhead minimized, i.e., to maximize the benefits obtained from limited number of BWPs. Some embodiments advantageously provide apparatuses and methods for adaptively configuring bandwidth part to enable fast WD reconfiguration. According to one aspect of the present disclosure, a method for a network node to adaptively configure bandwidth parts, BWPs, for a wireless device, WD, is provided. The method includes selecting at least one use case to be assigned to at least one BWP, the selecting being based at least in part on a WD context, and adaptively configuring at least one BWP for the WD based on the selected at least one use case. In some embodiments of this aspect, the method further includes configuring the WD to communicate with the network node utilizing at least one preconfigured BWP. In other embodiments of this aspect, the method includes determining the WD context. The WD context is based at least in part on at least one of received signals from the WD and an estimated WD context. The estimated WD context is estimated by the network node based at least on one of a monitoring scheduling behavior to WD (22) and the received signals from the WD. In another embodiment of this aspect, adaptively configuring at least one BWP for the WD further includes assigning the at least one use case to the at least one BWP and transmitting the at least one BWP to the WD. In yet another embodiment of this aspect, the at least one BWP is transmitted to the WD via a predefined message type. The at least one BWP includes a BWP configuration associated with the at least one use case. In some embodiments of this aspect, an active BWP in current use for communication between the network node and the WD is determined. A next BWP is selected from the at least one adaptively configured BWP based on the WD context. The active BWP switched by making the next BWP the active BWP for communication between the network node and the WD. The method further includes transmitting a signal to the WD based on the active BWP. The transmitted signal identifies at least the next BWP. In other embodiments of this aspect, switching the active BWP includes switching the active BWP using downlink control information, DCI. In another embodiment of this aspect, selecting a next BWP is further based on at least a trigger threshold predefined in the selected at least one use case. In yet another embodiment of this aspect, selecting at least one use case is further based on a use case priority. The use case priority includes at least one of a predefined importance of the at least one use case and a quality of service, QoS, threshold. According to another aspect of the present disclosure, a method for a wireless device, WD, supporting communication with a network node, is provided. The method includes receiving a signal having at least one adaptively confi