IP Library › Granted Patent US 11,601,988
Granted Patent B2
US 11,601,988 · App. 17/233,879 · Granted Mar 7, 2023

Method of determining frequency-domain offset parameter, user equipment (UE), random access method, method for configuring random access information, corresponding device and computer readable medium

Inventors: Chen Qian (Beijing, CN); Qi Xiong (Beijing, CN); Bin Yu (Beijing, CN)
Assignee: Samsung Electronics Co., Ltd.
H04W74/0858H04L27/0014H04L27/2659H04L27/2666H04L2027/0065H04L2027/0095H04W74/0833
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Quick Facts
Patent No.
US 11,601,988
App. No.
17/233,879
Granted
Mar 7, 2023
Kind
B2
Abstract

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A method of determining a frequency-domain offset parameter of a preamble in a random access channel and a corresponding user equipment (UE) is provided. The method includes obtaining a random access channel subcarrier spacing Δf RA , a preamble length L RA and a uplink (UL) channel subcarrier spacing Δf from a base station and determining a frequency-domain offset parameter k of a preamble in a random access channel based on the obtained random access channel subcarrier spacing Δf RA , preamble length L RA and UL channel subcarrier spacing Δf. Other embodiments of the disclosure further provide a random access method, a method for configuring random access information and related device, and a corresponding computer readable medium.

Claims (82)

1. A method performed by a terminal in a communication system, the method comprising:

receiving, from a base station, first information related to a length of a random access preamble and second information related to a first subcarrier spacing of a random access channel;

receiving, from the base station, third information related to a second subcarrier spacing of a physical uplink shared channel (PUSCH);

identifying an offset parameter among a plurality of offset parameters based on a combination of the first information, the second information, and the third information;

generating a baseband signal for a physical random access channel (PRACH) based on the offset parameter; and

transmitting the random access preamble based on the baseband signal,

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the offset parameter is “1”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the offset parameter is “133”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the offset parameter is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the offset parameter is “10”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

2. The method of claim 1 , further comprising:

identifying a number of resource blocks of the random access channel based on the combination of the first information, the second information, and the third information.

3. The method of claim 2 ,

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “3”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the number of resource blocks is “2”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the number of resource blocks is “24”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

4. A method performed by a base station in a communication system, the method comprising:

transmitting, to a terminal, first information related to a length of a random access preamble and second information related to a first subcarrier spacing of a random access channel;

transmitting, to the terminal, third information related to a second subcarrier spacing of a physical uplink shared channel (PUSCH); and

receiving, from the terminal, the random access preamble based on a baseband signal for a physical random access channel (PRACH), the baseband signal being generated based on an offset parameter corresponding to a combination of the first information, the second information, and the third information,

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the offset parameter is “1”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the offset parameter is “133”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the offset parameter is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the offset parameter is “10”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

5. The method of claim 4 , wherein the combination of the first information, the second information, and the third information is used to identify a number of resource blocks of the random access channel.

6. The method of claim 5 ,

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “3”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the number of resource blocks is “2”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the number of resource blocks is “24”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

7. A terminal in a communication system, the terminal comprising:

a transceiver; and

at least one processor coupled with the transceiver and configured to:

receive, from a base station, first information related to a length of a random access preamble and second information related to a first subcarrier spacing of a random access channel,

receive, from the base station, third information related to a second subcarrier spacing of a physical uplink shared channel (PUSCH),

identify an offset parameter among a plurality of offset parameters based on a combination of the first information, the second information, and the third information,

generate a baseband signal for a physical random access channel (PRACH) based on the offset parameters, and

transmit the random access preamble based on the baseband signal,

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the offset parameter is “1”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the offset parameter is “133”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the offset parameter is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the offset parameter is “10”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

8. The terminal of claim 7 , wherein the at least one processor is further configured to:

identify a number of resource blocks of the random access channel based on the combination of the first information, the second information, and the third information.

9. The terminal of claim 8 ,

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “3”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the number of resource blocks is “2”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the number of resource blocks is “24”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

10. A base station in a communication system, the base station comprising:

a transceiver; and

at least one processor coupled with the transceiver and configured to:

transmit, to a terminal, first information related to a length of a random access preamble and second information related to a first subcarrier spacing of a random access channel,

transmit, to the terminal, third information related to a second subcarrier spacing of a physical uplink shared channel (PUSCH), and

receive, from the terminal, the random access preamble based on a baseband signal for a physical random access channel (PRACH), the baseband signal being generated based on an offset parameter corresponding to a combination of the first information, the second information, and the third information,

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the offset parameter is “1”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the offset parameter is “133”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the offset parameter is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the offset parameter is “10”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the offset parameter is “7”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

11. The base station of claim 10 , wherein the combination of the first information, the second information, and the third information is used to identify a number of resource blocks of the random access channel.

12. The base station of claim 11 ,

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “3”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 30,

wherein the number of resource blocks is “2”, based on the length of the random access preamble being 839, the first subcarrier spacing being 1.25, and the second subcarrier spacing being 60,

wherein the number of resource blocks is “24”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 15,

wherein the number of resource blocks is “12”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 30, and

wherein the number of resource blocks is “6”, based on the length of the random access preamble being 839, the first subcarrier spacing being 5, and the second subcarrier spacing being 60.

Priority Claims (2)
CN 201810027186.8 · Jan 11, 2018 · national
CN 201810057947.4 · Jan 19, 2018 · national
Continuity (2)
Continuation 16245850 · Jan 11, 2019
Related Publication 20210243820A1 · Aug 5, 2021
Cited By (1)
US 12,677,325