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CN-116235593-B - Radio frequency consideration for bandwidth partial BWP selection

CN116235593BCN 116235593 BCN116235593 BCN 116235593BCN-116235593-B

Abstract

Certain aspects of the present disclosure provide techniques and apparatus for identifying one or more preferred bandwidth portions (BWPs) based on Radio Frequency (RF) performance degradation considerations. For example, a preferred BWP may be selected in an effort to avoid self-interference, avoid voltage controlled oscillator pulling, avoid thermal throttling, enable or improve the use of a multi-subscriber identification module (MSIM), or a combination thereof. In a general aspect, examples of the disclosed techniques by a User Equipment (UE) include receiving signaling from a network entity to configure the UE with a plurality of bwtps, determining a preferred BWP based on an amount of RF performance degradation associated with one or more of the plurality of bwtps, and signaling the preferred BWP to the network entity.

Inventors

  • A. KUMAR

Assignees

  • 高通股份有限公司

Dates

Publication Date
20260505
Application Date
20210809
Priority Date
20200909

Claims (20)

  1. 1. An apparatus for wireless communication, comprising: at least one memory including instructions, and At least one processor configured to execute the instructions to cause the apparatus to: Receiving signaling configuring the device with a plurality of bandwidth parts BWP; Determining a preferred BWP from the plurality of BWP's based on a predicted amount of radio frequency, RF, performance degradation associated with one or more of the configured plurality of BWP's, wherein to determine the preferred BWP based on the predicted amount of RF performance degradation, the at least one processor is configured to cause the apparatus to: evaluating center frequencies of the configured plurality of BWPs, and Determining the preferred BWP by selecting a BWP that results in eliminating or reducing VCO frequency of the VCO pulling effect based on the evaluation, and The preferred BWP is signaled to the network entity.
  2. 2. The apparatus of claim 1, wherein the preferred BWP is signaled via at least one of radio resource control, RRC, signaling or medium access control, MAC, control element, CE.
  3. 3. The apparatus of claim 1, wherein the at least one processor is further configured to cause the apparatus to: Evaluating the influence of self-interference on a plurality of BWPs of the configuration, and The preferred BWP is selected based on the evaluation.
  4. 4. A device according to claim 3, wherein a BWP having less self-interference influence than one or more other BWP is selected as the preferred BWP.
  5. 5. The apparatus of claim 3, wherein the evaluating comprises dynamically monitoring a receiver while transmitting on the configured plurality of BWPs.
  6. 6. The apparatus of claim 3, wherein the at least one processor is further configured to cause the apparatus to determine the preferred BWP by changing a transmit BWP to reduce RF degradation on a current receive BWP.
  7. 7. The apparatus of claim 1, wherein determining the preferred BWP is based at least in part on consideration of thermal constraints associated with the configured plurality of BWP.
  8. 8. The apparatus of claim 7, wherein determining the preferred BWP is based on a priori information about thermal constraints of the configured plurality of BWPs for one or more particular apparatus configurations.
  9. 9. The apparatus of claim 1, further comprising: Multiple subscriber identity Module SIM, and Wherein the at least one processor is further configured to cause the apparatus to determine the preferred BWP based at least in part on one or more MSIM considerations.
  10. 10. The apparatus of claim 9, wherein the one or more MSIM considerations relate to a capability of the apparatus to support different MSIM communication modes.
  11. 11. The apparatus of claim 10, wherein the one or more MSIM considerations comprise whether the apparatus supports at least one of simultaneous reception or simultaneous transmission on multiple SIMs.
  12. 12. The apparatus of claim 10, wherein the one or more MSIM considerations depend on a particular band combination.
  13. 13. The apparatus of claim 12, wherein the at least one processor is configured to cause the apparatus to select a preferred BWP that allows the apparatus to operate the same transceiver for different frequency bands.
  14. 14. The apparatus of claim 12, wherein the at least one processor is configured to cause the apparatus to select a preferred BWP that allows the apparatus to operate the same transceiver for different component carriers in carrier aggregation CA mode.
  15. 15. A method of wireless communication by a user equipment, UE, comprising: receiving signaling configuring a plurality of bandwidth parts BWP for the UE; Determining a preferred BWP from the plurality of BWPs based on a predicted amount of radio frequency RF performance degradation associated with one or more of the configured plurality of BWPs, wherein determining the preferred BWP based on the predicted amount of RF performance degradation comprises: evaluating center frequencies of the configured plurality of BWPs, and Determining the preferred BWP by selecting a BWP that results in eliminating or reducing VCO frequency of the VCO pulling effect based on the evaluation, and The preferred BWP is signaled to the network entity.
  16. 16. The method of claim 15, wherein the preferred BWP is signaled via at least one of radio resource control, RRC, signaling or medium access control, MAC, control element, CE.
  17. 17. The method of claim 15, wherein determining the preferred BWP further comprises: Evaluating the influence of self-interference on a plurality of BWPs of the configuration, and The preferred BWP is selected based on the evaluation.
  18. 18. The method of claim 17, wherein a BWP having less self-interference influence than one or more other BWP is selected as the preferred BWP.
  19. 19. The method of claim 17, wherein the evaluating comprises dynamically monitoring a receiver while transmitting on the configured plurality of BWPs.
  20. 20. The method of claim 17, wherein determining the preferred BWP comprises changing a transmit BWP to reduce RF degradation on a current receive BWP.

Description

Radio frequency consideration for bandwidth partial BWP selection Cross Reference to Related Applications The present application claims priority from U.S. application Ser. No. 17/016166, filed on 9/2020, which is assigned to the assignee of the present application and which is hereby expressly incorporated by reference in its entirety. Technical Field Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for indicating a User Equipment (UE) preferred bandwidth part (BWP). Background Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, and so on. These wireless communication systems may employ multiple-access techniques capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power, etc.). Examples of such multiple-access systems include third generation partnership project (3rd Generation Partnership Project,3GPP) long term evolution (Long Term Evolution, LTE) systems, LTE-advanced (LTE ADVANCED, LTE-a) systems, code division multiple access (Code Division Multiple Access, CDMA) systems, time division multiple access (Time Division Multiple Access, TDMA) systems, frequency division multiple access (Frequency Division Multiple Access, FDMA) systems, orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA) systems, single-carrier frequency division multiple access (Single-Carrier Frequency Division Multiple Access, SCDMA) systems, and time division synchronous code division multiple access (Time Division Synchronous Code Division Multiple Access, TD-SCDMA) systems, to name a few. In some examples, a wireless multiple-access communication system may include multiple Base Stations (BSs), each capable of supporting communication for multiple communication devices (also referred to as User Equipment (UEs)) simultaneously. In an LTE or LTE-a network, a set of one or more base stations may define an eNodeB (eNB). In other examples (e.g., in a New Radio, NR, or 5G network of the next generation), a wireless multiple access communication system may include a plurality of Distributed Units (DUs) (e.g., edge Units (EUs) units, edge nodes (Edge nodes, ENs), radio heads (Radio heads, RH), smart Radio heads (Smart heads, SRHs), transmission reception points (Ransmission Reception Point, TRP), etc.) in communication with a plurality of Central units (e.g., central nodes, CN), access Node controllers (Access Node Controller, ANC), etc.), wherein the set of one or more DUs in communication with the CU may define an access Node (e.g., which may be referred to as BS, 5G NB, next generation NodeB (gNB, or gNodeB), transmission Reception Points (TRP), etc.). The BS or DU may communicate with the set of UEs on a downlink channel (e.g., for transmission from the BS or DU to the UE) and an uplink channel (e.g., for transmission from the UE to the BS or DU). These multiple access techniques have been employed in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the urban, national, regional, and even global levels. NR (e.g., new radio or 5G) is an example of an emerging telecommunication standard. NR is a set of enhancements to the LTE mobile standard published by 3 GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and using OFDMA with Cyclic Prefix (CP) on Downlink (DL) and Uplink (UL) to integrate better with other open standards. To this end, NR supports beamforming, multiple-Input Multiple-Output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to grow, further improvements in NR and LTE technologies are needed. Preferably, these improvements should be applicable to other multiple access techniques and telecommunication standards employing these techniques. Disclosure of Invention The systems, methods, and devices of the present disclosure each have several aspects, none of which are solely responsible for their desirable attributes. Without limiting the scope of the disclosure as expressed by the claims which follow, some features will now be discussed briefly. After considering this discussion, and particularly after reading the section entitled "detailed description of certain embodiments" one will understand how the features of this disclosure provide advantages that include improved communications between access points and stations in a wireless network. Certain aspects of the present disclosure generally relate to an apparatus for wireless communication. The apparatus includes a memory and at least one processor coupled to the memory. The at least one processor is configured to receive signaling configuring a plurali