SSB candidate position index indication method and device, SSB candidate position index receiving method and device, storage medium, base station and user equipment

A technology of indexing and indication, applied in the field of communication, can solve the problem of undetermined DRS transmission window length, etc., and achieve the effect of avoiding transmission performance

Active Publication Date: 2019-10-15
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the unlicensed frequency band above 6GHz, NR-U has not yet determined th

Method used

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  • SSB candidate position index indication method and device, SSB candidate position index receiving method and device, storage medium, base station and user equipment
  • SSB candidate position index indication method and device, SSB candidate position index receiving method and device, storage medium, base station and user equipment
  • SSB candidate position index indication method and device, SSB candidate position index receiving method and device, storage medium, base station and user equipment

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Embodiment Construction

[0033] As mentioned in the background, in the unlicensed frequency band higher than 6 GHz, the NR-U has not yet determined the length of the DRS transmission window and how to indicate the SSB candidate position index.

[0034] The inventors of the present application have found through research that if the DRS transmission window with a length of 5 ms is still used in the NR-U frequency band above 5 GHz and the subcarrier spacing is 60 kHz, at most 40 SSB candidate position indexes need to be sent, and a maximum of 6 bits is required; When the carrier spacing is 120KHz, at most 80 SSB candidate position indices need to be sent, and a maximum of 7 bits is required; when the subcarrier spacing is 240KHz, at most 160 SSB candidate position indices need to be transmitted, and a maximum of 8 bits is required. However, the SSB candidate position index in the PBCH DMRS and the PBCH payload is at most 6 bits.

[0035] In the technical solution of the present invention, since indicati...

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Abstract

The invention discloses an SSB candidate position index indication method and device, an SSB candidate position index receiving method and device, a storage medium, a base station and user equipment.The SSB candidate position index indication method comprises: determining the maximum number of SSB candidate position indexes capable of being sent in a DRS transmission window under the current subcarrier interval; determining the number of bits occupied for sending the SSB candidate position indexes according to the maximum number of the SSB candidate position indexes; and determining to indicate the SSB candidate position index by adopting the highest P bit in the PBCH payload and the sequence of the DMRS according to the bit number, or indicate the SSB candidate position inde by adoptingan original SSB index bit and a newly added index bit in the PBCH load, wherein the sequence of the DMRS occupies Q bits, and P is the difference between the bit number and Q; and sending an SSB, wherein the SSB comprises the PBCH payload. According to the technical scheme of the invention, the SSB candidate position index can be indicated in an unlicensed frequency band higher than 6GHz.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to an SSB candidate position index indication, a receiving method and device, a storage medium, a base station, and user equipment. Background technique [0002] In the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) New Radio (NR) system, in the radio frame with a length of 10ms in the time domain, each radio frame is divided into 10 sub-frames with the same size and a length of 1ms. A frame, each subframe may include multiple time slots (slots) according to different intervals between subcarriers. Each time slot consists of a certain number of symbols, and the number of symbols is determined by a cyclic prefix (cyclic prefix, CP) type. The NR system supports multi-beam synchronization signal (Synchronzation Signal, SS), secondary synchronization signal and physical broadcast channel (Physical Broadcast Channel, PBCH) transmission. A...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0094H04L5/0048H04W72/23
Inventor 周欢
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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