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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/134664
Kind Code:
A method and an apparatus for maintenance of a bandwidth part. The method and apparatus resolve an issue of the prior art in which expiration of a bandwidth part deactivation timer during a random access process changes the bandwidth part to a default bandwidth part, such that data cannot be transmitted on an optimal bandwidth part, and may even cause an interruption of an ongoing data transmission, while also affecting an ongoing random access process. In embodiments of the present invention, a terminal keeps a current active bandwidth part unchanged during a random access process, and performs a restart operation of a bandwidth part deactivation timer after the random access process is successfully completed, such that a situation where a bandwidth part changes to a default bandwidth part does not occur during the random access process, thereby reducing interruption to ongoing data transmissions and reducing the impact on ongoing random access processes.

CHEN, Li (No. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
Application Number:
Publication Date:
July 11, 2019
Filing Date:
January 03, 2019
Export Citation:
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CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY (No. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
International Classes:
Foreign References:
Other References:
CATT: "BWP Inactivity Timer for active UL BWP", 3GPP TSG-RAN WG2 MEETING #100, R2-1712861, 1 December 2017 (2017-12-01), XP051371746
VIVO: "Duplication deactivation due to Scell or BWP deactivation", 3GPP TSG-RAN WG2 MEETING #99, R2-1708489, 25 August 2017 (2017-08-25), XP051318344
SAMSUNG: "Response LS on BWP operation in NR", 3GPP TSG-RAN WG2 MEETING #99, R2-1709793, 25 August 2017 (2017-08-25), XP051330337
ASUSTEK: "Details of BWP inactivity timer", 3GPP TSG-RAN WG2 MEETING #100, R2-1712212, 1 December 2017 (2017-12-01), XP051370919
VIVO: "BWP impact on idle/inactive mode", 3GPP TSG-RAN WG2 MEETING #100, R2-1712759, 1 December 2017 (2017-12-01), XP051371662
Attorney, Agent or Firm:
TDIP & PARTNERS (101-01, 8/F Building 20, No. 1 Baosheng South Road, Haidian District, Beijing 2, 100192, CN)
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