US-12621783-B2 - Method and apparatus for random access

Abstract

A method for random access is applied to a terminal, and includes: receiving feedback information from a base station during a random access procedure according to at least one of first receiving timing information or second receiving timing information; wherein the first receiving timing information and the second receiving timing information correspond to different manners for determining a timing advance by the terminal; and wherein the first receiving timing information is different from the second receiving timing information.

Inventors

• Xiaowei Jiang

Assignees

• BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date

20260505

Application Date

20200731

Claims (18)

1. 1 . A method for random access, applied to a terminal and comprising: receiving feedback information from a base station during a random access procedure according to at least one of first receiving timing information or second receiving timing information; wherein the first receiving timing information and the second receiving timing information correspond to different manners for determining a timing advance by the terminal; wherein the first receiving timing information is different from the second receiving timing information; wherein the first receiving timing information comprises at least one of a first offset of a first time window for receiving a random access response relative to a first receiving moment, or a first length of the first time window; and/or the second receiving timing information comprises at least one of a second offset of a second time window for receiving a random access response relative to a second receiving moment, or a second length of the second time window; and wherein the first offset is different from the second offset, and/or the first length is different from the second length.
2. 2 . The method according to claim 1 , wherein receiving the feedback information from the base station during the random access procedure according to the first receiving timing information comprises: receiving, in the first time window, random access response information sent by the base station through a nearest physical downlink control channel occasion, wherein the first time window is a time window switching the first offset from the first receiving moment; and/or receiving the feedback information from the base station during the random access procedure according to the second receiving timing information comprises: receiving, in the second time window, random access response information sent by the base station through a nearest physical downlink control channel occasion, wherein the second time window is a time window switching the second offset from the second receiving moment.
3. 3 . The method according to claim 1 , wherein each of the first receiving moment and the second receiving moment is a moment that Msg1 or MsgA for the random access procedure is sent completely.
4. 4 . The method according to claim 1 , wherein the first offset is greater than the second offset, and/or the first length is smaller than the second length.
5. 5 . The method according to claim 1 , wherein the first offset is equal to 2*d1/c, or equal to 2*(d1+d0_F)/c; the second offset is equal to 2*d0/c, or equal to 2*(d0+d0_F)/c; where, d1 is a distance from a network device in air to the terminal, d0 is a distance from the network device to a reference point on ground, d0_F is a distance from the network device to the base station on the ground, and c is a speed of light.
6. 6 . The method according to claim 1 , wherein the first receiving timing information comprises at least one of a third offset of a first contention resolution timer relative to a third receiving moment, or a first time duration of the first contention resolution timer; and/or the second receiving timing information comprises at least one of a fourth offset of a second contention resolution timer relative to a fourth receiving moment, or a second time duration of the second contention resolution timer; wherein the third offset is different from the fourth offset, and/or the first time duration is different from the second time duration.
7. 7 . The method according to claim 6 , wherein receiving the feedback information from the base station during the random access procedure according to the first receiving timing information comprises: starting the first contention resolution timer in a time-domain symbol, wherein the time-domain symbol is a first time-domain symbol switching the third offset from the third receiving moment; and/or receiving the feedback information from the base station during the random access procedure according to the second receiving timing information comprises: starting the second contention resolution timer in a time-domain symbol, wherein the time-domain symbol is a second time-domain symbol switching the fourth offset from the fourth receiving moment.
8. 8 . The method according to claim 6 , wherein each of the third receiving moment and the fourth receiving moment is a moment that Msg3 for the random access procedure is sent completely.
9. 9 . The method according to claim 6 , wherein the third offset is greater than the fourth offset, and/or the first time duration is shorter than the second time duration.
10. 10 . The method according to claim 6 , wherein the third offset is equal to 2*d1/c, or equal to 2*(d1+d0_F)/c; the fourth offset is equal to 2*d0/c, or equal to 2*(d0+d0_F)/c; where, d1 is a distance from a network device in air to the terminal, d0 is a distance from the network device to a reference point on ground, d0_F is a distance from the network device to the base station on the ground, and c is a speed of light.
11. 11 . The method according to claim 1 , further comprising: receiving indication information sent by the base station; wherein the indication information comprises the first receiving timing information and/or the second receiving timing information.
12. 12 . The method according to claim 1 , further comprising: receiving the feedback information from the base station during the random access procedure according to the first receiving timing information in response to the timing advance being determined by the terminal autonomously.
13. 13 . The method according to claim 1 , further comprising: receiving the feedback information from the base station during the random access procedure according to the second receiving timing information in response to the timing advance being determined by the terminal non-autonomously.
14. 14 . A method for configuration indication, applied to a base station and comprising: sending indication information comprising first receiving timing information and second receiving timing information to a terminal; wherein the indication information is configured to indicate the terminal to in response to a timing advance being determined autonomously, receive feedback information from the base station during a random access procedure according to the first receiving timing information, and in response to the timing advance being determined non-autonomously, receive feedback information from the base station during the random access procedure according to the second receiving timing information; wherein the first receiving timing information is different from the second receiving timing information; wherein the first receiving timing information comprises at least one of a first offset of a first time window for receiving a random access response relative to a first receiving moment, or a first length of the first time window; and/or the second receiving timing information comprises at least one of a second offset of a second time window for receiving a random access response relative to a second receiving moment, or a second length of the second time window; and wherein the first offset is different from the second offset, and/or the first length is different from the second length.
15. 15 . The method according to claim 14 , wherein each of the first receiving moment and the second receiving moment is a moment that Msg1 or MsgA for the random access procedure is sent completely.
16. 16 . The method according to claim 14 , wherein the first offset is equal to 2*d1/c, or equal to 2*(d1+d0_F)/c; the second offset is equal to 2*d0/c, or equal to 2*(d0+d0_F)/c; where, d1 is a distance from a network device in air to the terminal, d0 is a distance from the network device to a reference point on ground, d0_F is a distance from the network device to the base station on the ground, and c is a speed of light.
17. 17 . The method according to claim 14 , wherein the first receiving timing information comprises at least one of a third offset of a first contention resolution timer relative to a third receiving moment, or a first time duration of the contention resolution timer; and/or the second receiving timing information comprises at least one of a fourth offset of a second contention resolution timer relative to a fourth receiving moment, or a second time duration of the second contention resolution timer; wherein the third offset is different from the fourth offset, and/or the first time duration is different from the second time duration.
18. 18 . A terminal, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to: receive feedback information from a base station during a random access procedure according to at least one of first receiving timing information or second receiving timing information; wherein the first receiving timing information and the second receiving timing information correspond to different manners for determining a timing advance by the terminal; wherein the first receiving timing information is different from the second receiving timing information; wherein the first receiving timing information comprises at least one of a first offset of a first time window for receiving a random access response relative to a first receiving moment, or a first length of the first time window; and/or the second receiving timing information comprises at least one of a second offset of a second time window for receiving a random access response relative to a second receiving moment, or a second length of the second time window; and wherein the first offset is different from the second offset, and/or the first length is different from the second length.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application is a U.S. national phase application of International Application PCT/CN2020/106376, filed Jul. 31, 2020, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a field of a communication technology, and in particular to a method for random access, a method for configuration indication, an apparatus for random access, an apparatus for configuration indication, a communication device and a computer-readable storage medium. BACKGROUND With the development of the communication technology, there is a need to communicate between base stations and terminals at any position on ground. However, the base stations in a current network are located on the ground, which restricts the provision of the base stations, and it is difficult to fully cover the ground through the base stations on the ground. Therefore, it is considered to incorporate satellites for coverage. In a terrestrial network, the base station may send a timing advance (TA for short) to a terminal, so that an uplink signal frame sent by the terminal corresponds to a downlink signal frame sent by the base station. However, in a case of communicating in a non-terrestrial network (NTN for short) using a satellite, since the satellite is in air and moves at a high speed, when the base station communicates with the terminal through the satellite, there is a large delay, and the timing advance is determined according to the delay, so the timing advance is relatively large, which may cause some problems. SUMMARY In view of this, embodiments of the present disclosure provide a method for random access, a method for configuration indication, an apparatus for random access, an apparatus for configuration indication, a communication device and a computer-readable storage medium to solve technical problems in related art. According to a first aspect of embodiments of the present disclosure, a method for random access is provided. The method is applied to a terminal, and includes in response to a timing advance being determined by the terminal autonomously, receiving feedback information from a base station during a random access procedure according to first receiving timing information; and in response to the timing advance being determined by the terminal non-autonomously, receiving feedback information from the base station during the random access procedure according to second receiving timing information. The first receiving timing information is different from the second receiving timing information. According to a second aspect of embodiments of the present disclosure, a method for configuration indication is provided. The method is applied to a base station and includes sending indication information including first receiving timing information and second receiving timing information to a terminal. The indication information is configured to indicate the terminal to in response to a timing advance being determined autonomously, receive feedback information from the base station during a random access procedure according to the first receiving timing information, and in response to the timing advance being determined non-autonomously, receive feedback information from the base station during the random access procedure according to the second receiving timing information. The first receiving timing information is different from the second receiving timing information. According to a third aspect of embodiments of the present disclosure, a communication device is provided. The communication device includes a processor; and a memory for storing instructions executable by the processor. The processor is configured to implement the instructions to perform the method for random access according to any one of the above-mentioned embodiments and/or the method for configuration indication according to any one of the above-mentioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings used in description of embodiments will be briefly introduced below. Apparently, the drawings in the following description are only used to illustrate example embodiments of the present disclosure. For those skilled in the art, other embodiments may also be obtained. FIG. 1 is a flowchart illustrating a method for random access according to an embodiment of the present disclosure. FIG. 2 is a flowchart illustrating a method for random access according to an embodiment of the present disclosure. FIG. 3 is a flowchart illustrating a method for random access according to an embodiment of the present disclosure. FIG. 4 is a flowchart illustrating a method for random access according to an embodiment of the present disclosure. FIG. 5 is a flowchart illustrating a method for configuration indication according to an embodiment of the present disclosure. FIG. 6 is a block diagram illustrating an apparatus for random access according to an embodiment of t