阅读说明：本技术 对无线通信网络中的带宽部分的切换 (Handover of bandwidth portion in wireless communication network ) 是由 刘进华 范锐 于 2017-11-13 设计创作，主要内容包括：本公开涉及对无线通信网络中的带宽部分的切换。实施例可提供一种由无线设备执行的用于切换带宽部分的方法。该方法包括：从基站接收用于指示第一带宽部分的第一消息；以及响应于确定第一带宽部分不是当前活动带宽部分,切换到第一带宽部分。(The present disclosure relates to handover of a bandwidth portion in a wireless communication network. Embodiments may provide a method performed by a wireless device for switching portions of bandwidth. The method comprises the following steps: receiving a first message indicating a first bandwidth portion from a base station; and switching to the first bandwidth portion in response to determining that the first bandwidth portion is not the currently active bandwidth portion.)

1. A method performed by a wireless device for switching bandwidth portions, the method comprising:

-receiving a first message indicating a first bandwidth part from a base station;

-in response to determining that the first bandwidth portion is not a currently active bandwidth portion, switching to the first bandwidth portion.

2. The method of claim 1, wherein the first message comprises a first index indicating a first physical resource block corresponding to the first bandwidth portion;

the method further comprises the following steps:

-retrieving the first index from the first message; and

-identifying the first bandwidth part based on the first index and a mapping between physical resource blocks configured for the wireless device and bandwidth parts.

3. The method of claim 2, wherein if the first physical resource block is mapped to a plurality of bandwidth parts, the first bandwidth part is one of the plurality of bandwidth parts having a smallest width.

4. The method of any of claims 2-3, wherein the first message further comprises a first size indicating whether physical resource blocks are allocated to the wireless device.

5. The method of claim 4, wherein if the first size is 0, no physical resource blocks are allocated.

6. The method of claim 4, wherein if the first size is an integer greater than 0, allocating a first set of physical resource blocks starting with the first physical resource block and including physical resource blocks of the first size.

7. The method of any of claims 2-6, further comprising:

-receiving a radio resource control message from the base station indicating a mapping between physical resource blocks and bandwidth parts.

8. The method of any of claims 1-7, wherein the first message is a downlink control information message.

9. The method of any of claims 1-8, wherein the first message further comprises a hybrid automatic repeat request delay parameter.

10. The method of any of claims 1-9, wherein switching to the first bandwidth portion comprises:

-retuning to the first bandwidth part.

11. The method according to any one of claims 1-10, further comprising:

-performing radio resource management measurements in measurement gaps in response to the first bandwidth part not comprising reference signals for measurements.

12. The method according to any one of claims 1-11, further comprising:

-in response to determining that the first bandwidth part is the currently active bandwidth part, remaining in the currently active bandwidth part.

13. A method performed by a base station for switching bandwidth portions, the method comprising:

-determining a first bandwidth part of a plurality of bandwidth parts for communicating with a wireless device; and

-transmitting a first message to the wireless device indicating the first bandwidth portion, wherein the first message is for identifying the bandwidth portion to which the wireless device is scheduled.

14. The method of claim 13, wherein the first message comprises a first index indicating a first physical resource block corresponding to the first bandwidth portion.

15. The method of claim 14, wherein if the first physical resource block is mapped to a plurality of bandwidth parts, the first bandwidth part is one of the plurality of bandwidth parts having a smallest width.

16. The method of any of claims 14-15, wherein the first message further comprises a first size indicating whether physical resource blocks are allocated to the wireless device.

17. The method of claim 16, wherein if the first size is 0, no physical resource blocks are allocated.

18. The method of claim 16, wherein if the first size is an integer greater than 0, allocating a first set of physical resource blocks starting with the first physical resource block and including physical resource blocks of the first size.

19. The method according to any one of claims 13-18, further comprising:

-transmitting a radio resource control message to the wireless device indicating the mapping between physical resource blocks and bandwidth parts.

20. The method of any of claims 13-19, wherein the first message is a downlink control information message.

21. The method of any of claims 13-20, wherein the first message further comprises a hybrid automatic repeat request delay parameter.

22. A wireless device for switching bandwidth portions, the wireless device comprising:

-processing circuitry configured to perform any of the steps of any of claims 1-12; and

-a power supply circuit configured to supply power to the wireless device.

23. A base station for switching bandwidth portions, the base station comprising:

-processing circuitry configured to perform any of the steps of any of claims 13-21;

-a power supply circuit configured to supply power to the base station.

24. A User Equipment (UE) for switching bandwidth parts, the UE comprising:

-an antenna configured to transmit and receive wireless signals;

-radio front-end circuitry connected to the antenna and processing circuitry and configured to condition signals communicated between the antenna and the processing circuitry;

-the processing circuitry is configured to perform any of the steps of any of claims 1-12;

-an input interface connected to the processing circuitry and configured to allow information to be input into the UE for processing by the processing circuitry;

-an output interface connected to the processing circuitry and configured to output information from the UE that has been processed by the processing circuitry; and

-a battery connected to the processing circuitry and configured to power the UE.

Technical Field

The present disclosure relates generally to wireless communication technology and, more particularly, to handover of bandwidth portions in a wireless communication network.

Background

Due to improvements in communication technology, much wider carriers are used between base stations (such as the gNB in a 5G network) and wireless devices in order to increase data transmission speed and performance for serving many users.

However, if the wireless device needs to monitor the full bandwidth of the control channel (e.g., CORESET) at all times, this will be power consuming, and there may also be some types of wireless devices that support only a relatively narrow bandwidth. Accordingly, the carrier bandwidth may be divided into a plurality of bandwidth portions (BWPs) having a relatively narrow frequency range. A wireless device may be allocated a portion of bandwidth to communicate with a base station. Communication within the wide portion of the bandwidth will result in power savings for the wireless device since the wireless device does not need to monitor the entire bandwidth. Furthermore, radio resource management for the network over a wide bandwidth will be more efficient.

There are certain challenges at present. For example, a User Equipment (UE) may be configured with several BWPs and may be required to switch BWPs, if desired. Therefore, it is desirable to quickly and conveniently switch BWPs in order to maintain stable communication between the UE and the base station.

Disclosure of Invention

Certain aspects of the present disclosure and embodiments thereof may provide solutions to these and other challenges. Various embodiments are presented herein that address one or more of the problems disclosed herein.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of some embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally refer to like parts of embodiments of the disclosure.

Fig. 1 is a schematic diagram illustrating a process for switching bandwidth portions, in accordance with some embodiments;

FIG. 2 is a schematic diagram illustrating a first BWP configuration for a wireless device;

fig. 3 is a diagram illustrating a first index and a first size included in a first message;

FIG. 4 is a diagram illustrating a second BWP configuration for a wireless device;

FIG. 5 is a diagram illustrating a third BWP configuration for a wireless device;

fig. 6 is a schematic diagram illustrating a wireless network in accordance with some embodiments;

FIG. 7 is a schematic diagram illustrating a user device according to some embodiments;

FIG. 8 is a schematic diagram illustrating a virtualized environment in accordance with some embodiments;

FIG. 9 is a schematic diagram illustrating a telecommunications network connected to a host computer via an intermediate network, in accordance with some embodiments;

fig. 10 is a schematic diagram illustrating a host computer communicating with user equipment over a partial wireless connection via a base station in accordance with some embodiments;

fig. 11 is a schematic diagram illustrating a method implemented in a communication system including a host computer, a base station, and user equipment, in accordance with some embodiments;

fig. 12 is a schematic diagram illustrating a method implemented in a communication system including a host computer, a base station, and user equipment, in accordance with some embodiments;

fig. 13 is a schematic diagram illustrating a method implemented in a communication system including a host computer, a base station, and user equipment, in accordance with some embodiments;

fig. 14 is a schematic diagram illustrating a method implemented in a communication system including a host computer, a base station, and user equipment, in accordance with some embodiments;

fig. 15 is a schematic diagram illustrating a method performed by a wireless device, in accordance with some embodiments;

fig. 16 is a diagram illustrating another method performed by a wireless device, in accordance with certain embodiments;

fig. 17 is a schematic diagram illustrating a method performed by a base station, in accordance with some embodiments;

fig. 18 is a schematic diagram illustrating another method performed by a base station, in accordance with some embodiments;

FIG. 19 is a schematic diagram illustrating a virtualization apparatus in a wireless device according to some embodiments; and

fig. 20 is a schematic diagram illustrating a virtualization apparatus in a base station according to some embodiments.

A first aspect of the embodiments may provide a method performed by a wireless device for switching a bandwidth part. The method comprises the following steps: receiving a first message indicating a first bandwidth portion from a base station; and switching to the first bandwidth portion in response to determining that the first bandwidth portion is not the currently active bandwidth portion.