CN-122002566-A - Information configuration method and communication device

Abstract

The application discloses an information configuration method and a communication device, wherein the method comprises the steps that a terminal device receives first configuration information from a network device, the first configuration information is used for configuring a first initial uplink partial bandwidth, and under the condition that the first initial uplink partial bandwidth is not overlapped with SBFD uplink sub-bands, a second initial uplink partial bandwidth is determined, the second initial uplink partial bandwidth is overlapped with SBFD uplink sub-bands, and the second initial uplink partial bandwidth is used for initial random access of the terminal device. The application can ensure that the terminal equipment performs random access in SBFD scenes, thereby ensuring the communication performance.

Inventors

• LUO YUFEI
• CHI LIANGANG
• CAO YONGZHAO

Assignees

• 荣耀终端股份有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (20)

1. 1. An information configuration method, applied to a terminal device, comprising: Receiving first configuration information from network equipment, wherein the first configuration information is used for configuring a first initial uplink partial bandwidth; And under the condition that the first initial uplink partial bandwidth is not overlapped with the full duplex SBFD uplink sub-band of the sub-band, determining a second initial uplink partial bandwidth, wherein the second initial uplink partial bandwidth is overlapped with the SBFD uplink sub-band, and the second initial uplink partial bandwidth is used for initial random access of the terminal equipment.
2. 2. The method according to claim 1, wherein the method further comprises: and under the condition that the first initial uplink partial bandwidth is overlapped with the SBFD uplink sub-band, using the first initial uplink partial bandwidth for initial random access of the terminal equipment.
3. 3. The method according to claim 1 or 2, wherein the second initial upstream partial bandwidth is determined based on the first initial upstream partial bandwidth and first information; The first information includes one or more of a lowest frequency domain resource location of the SBFD uplink sub-band, a highest frequency domain resource location of the SBFD uplink sub-band, or a frequency domain resource number of the SBFD uplink sub-band.
4. 4. The method of claim 3, wherein in the case where the highest frequency domain resource location of the first initial upstream partial bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-bands, the lowest frequency domain resource location of the second initial upstream partial bandwidth is equal to the lowest frequency domain resource location of the first initial upstream partial bandwidth, the highest frequency domain resource location of the second initial upstream partial bandwidth is equal to the sum of the lowest frequency domain resource location of the SBFD upstream sub-bands and the number of frequency domain resources of the first initial upstream partial bandwidth minus 1; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-bands, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-bands and the frequency domain resource quantity of the first initial uplink partial bandwidth plus 1.
5. 5. The method of claim 3, wherein the lowest frequency domain resource location of the second initial upstream partial bandwidth is equal to the lowest frequency domain resource location of the first initial upstream partial bandwidth if the highest frequency domain resource location of the first initial upstream partial bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-bands, wherein the highest frequency domain resource location of the second initial upstream partial bandwidth is equal to the sum of the lowest frequency domain resource location of the SBFD upstream sub-bands and a first value minus 1, and wherein the first value is the minimum of the number of frequency domain resources of the first initial upstream partial bandwidth and the number of frequency domain resources of the SBFD upstream sub-bands; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-band and the first value plus 1.
6. 6. A method according to claim 3, wherein in the case where the highest frequency domain resource location of the first initial uplink partial bandwidth is lower than the lowest frequency domain resource location of the SBFD uplink sub-band, the lowest frequency domain resource location of the second initial uplink partial bandwidth is equal to the lowest frequency domain resource location of the first initial uplink partial bandwidth, and the highest frequency domain resource location of the second initial uplink partial bandwidth is equal to the highest frequency domain resource location of the SBFD uplink sub-band; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the lowest frequency domain resource position of the SBFD uplink sub-band.
7. 7. The method of claim 3, wherein in the case where the highest frequency domain resource location of the first initial upstream partial bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-band, the lowest frequency domain resource location of the second initial upstream partial bandwidth is equal to the lowest frequency domain resource location of the first initial upstream partial bandwidth; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-band and the preset value.
8. 8. The method according to any of claims 1-7, wherein the first configuration information is further used for configuring random access resources; The method for determining the initial uplink partial bandwidth by the terminal equipment is associated with the configuration method of the random access resource.
9. 9. The method of any of claims 1-8, wherein the second initial upstream portion of bandwidth overlaps the first initial upstream portion of bandwidth, the method further comprising: transmitting a physical random access channel, PRACH, to the network device over the second initial uplink partial bandwidth; Executing a random access procedure after the terminal equipment sends the PRACH on the second initial uplink partial bandwidth under the condition that the terminal equipment indicates to the network equipment that the terminal equipment has SBFD capacity; and executing a random access flow after the terminal equipment sends the PRACH on the first initial uplink partial bandwidth under the condition that the terminal equipment does not indicate to the network equipment that the terminal equipment has SBFD capability.
10. 10. The method of claim 9, wherein the first configuration information is further used to configure random access resources, the random access resources comprising a first random access occasion whose frequency domain resources are located in the second initial uplink partial bandwidth; the PRACH is transmitted on the first random access occasion that does not indicate that the terminal device is SBFD capable.
11. 11. The method of claim 9, wherein the first configuration information is further used to configure random access resources, the random access resources comprising a second random access occasion, frequency domain resources of the second random access occasion being located in the second initial uplink partial bandwidth; the PRACH is transmitted on the second random access occasion, which indicates that the terminal device has SBFD capabilities.
12. 12. The method of claim 9, wherein the PRACH carries first indication information, the first indication information being used to indicate that the terminal device is SBFD capable.
13. 13. An information configuration method, applied to a network device, the method comprising: Transmitting first configuration information to terminal equipment, wherein the first configuration information is used for configuring a first initial uplink partial bandwidth; And under the condition that the first initial uplink partial bandwidth is not overlapped with the full duplex SBFD uplink sub-band of the sub-band, determining a second initial uplink partial bandwidth, wherein the second initial uplink partial bandwidth is overlapped with the SBFD uplink sub-band, and the second initial uplink partial bandwidth is used for initial random access of the terminal equipment.
14. 14. The method of claim 13, wherein the method further comprises: and under the condition that the first initial uplink partial bandwidth is overlapped with the SBFD uplink sub-band, using the first initial uplink partial bandwidth for initial random access of the terminal equipment.
15. 15. The method according to claim 13 or 14, wherein the second initial upstream partial bandwidth is determined based on the first initial upstream partial bandwidth and first information; The first information includes one or more of a lowest frequency domain resource location of the SBFD uplink sub-band, a highest frequency domain resource location of the SBFD uplink sub-band, or a frequency domain resource number of the SBFD uplink sub-band.
16. 16. The method of claim 15, wherein the lowest frequency domain resource location of the second initial upstream portion bandwidth is equal to the lowest frequency domain resource location of the first initial upstream portion bandwidth, and wherein the highest frequency domain resource location of the second initial upstream portion bandwidth is equal to the sum of the lowest frequency domain resource location of the SBFD upstream sub-band and the number of frequency domain resources of the first initial upstream portion bandwidth minus 1, if the highest frequency domain resource location of the first initial upstream portion bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-band; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-bands, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-bands and the frequency domain resource quantity of the first initial uplink partial bandwidth plus 1.
17. 17. The method of claim 15, wherein the lowest frequency domain resource location of the second initial upstream bandwidth is equal to the lowest frequency domain resource location of the first initial upstream bandwidth if the highest frequency domain resource location of the first initial upstream bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-bands, wherein the highest frequency domain resource location of the second initial upstream bandwidth is equal to the sum of the lowest frequency domain resource location of the SBFD upstream sub-bands and a first value minus 1, wherein the first value is the minimum of the number of frequency domain resources of the first initial upstream bandwidth and the number of frequency domain resources of the SBFD upstream sub-bands; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-band and the first value plus 1.
18. 18. The method of claim 15, wherein the lowest frequency domain resource location of the second initial upstream portion bandwidth is equal to the lowest frequency domain resource location of the first initial upstream portion bandwidth and the highest frequency domain resource location of the second initial upstream portion bandwidth is equal to the highest frequency domain resource location of the SBFD upstream sub-band, if the highest frequency domain resource location of the first initial upstream portion bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-band; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the lowest frequency domain resource position of the SBFD uplink sub-band.
19. 19. The method of claim 15, wherein in the case where the highest frequency domain resource location of the first initial upstream partial bandwidth is lower than the lowest frequency domain resource location of the SBFD upstream sub-band, the lowest frequency domain resource location of the second initial upstream partial bandwidth is equal to the lowest frequency domain resource location of the first initial upstream partial bandwidth; And under the condition that the lowest frequency domain resource position of the first initial uplink partial bandwidth is higher than the highest frequency domain resource position of the SBFD uplink sub-band, the highest frequency domain resource position of the second initial uplink partial bandwidth is equal to the highest frequency domain resource position of the first initial uplink partial bandwidth, and the lowest frequency domain resource position of the second initial uplink partial bandwidth is equal to the difference between the highest frequency domain resource position of the SBFD uplink sub-band and the preset value.
20. 20. The method according to any of claims 13-19, wherein the first configuration information is further used for configuring random access resources; The method for determining the initial uplink partial bandwidth by the terminal equipment is associated with the configuration method of the random access resource.

Description

Information configuration method and communication device Technical Field The embodiment of the application relates to the field of communication, in particular to an information configuration method and a communication device. Background The sub-band full duplex (subband full duplex, SBFD) is a new duplex system proposed at present, and by dividing non-overlapping uplink/downlink sub-bands in a single carrier of time division duplex (time division duplexing, TDD) and respectively transmitting and receiving data on the sub-bands, the full duplex of a base station side is realized, and by flexibly scheduling across the sub-bands, the large bandwidth and low time delay concurrency requirements of industrial application can be met. In order to acquire uplink synchronization, the terminal device may need to perform random access. The terminal device receives a Synchronization Signal Block (SSB) from the network device, and acquires a system information block 1 (systeminformation block, sib1) required for accessing the cell by decoding the SSB. The SIB1 indicates a resource configuration available for a terminal device to initiate a Random Access Channel (RACH) ACCESS CHANNEL, including a position and a bandwidth of a carrier, a configuration of an initial Uplink (UL) partial bandwidth (bandwith part, BWP), a configuration of an initial Downlink (DL) BWP, and the like. The SIB1 further includes a configuration of random access resources, which includes a time-frequency resource of a random access occasion (RACH occalation, RO) and a random access preamble (random access preamble, RAP). In addition, it is also necessary to ensure that the initial UL BWP is aligned with the center frequency of the initial DL BWP. The terminal device transmits a physical random access channel (physical randomaccess channel, PRACH) at the SSB-associated RO. The PRACH is currently transmitted on component carriers (component carrier, CC) that support only uplink transmissions. However, after SBFD is introduced, when the initial DL BWP is located in the DL subband, since the initial UL BWP needs to be aligned with the center frequency of the initial DL BWP, a situation may occur in which the initial UL BWP cannot cover the UL subband, so that the terminal device does not have UL resources available in the SBFD scenario, and thus cannot perform random access in the SBFD scenario. Disclosure of Invention The embodiment of the application provides an information configuration method and a communication device, which can ensure that terminal equipment performs random access in SBFD scenes based on the method described by the application, thereby ensuring communication performance. In a first aspect, the present application provides an information configuration method, applied to a terminal device, where the method includes: Receiving first configuration information from a network device, wherein the first configuration information is used for configuring a first initial uplink partial bandwidth; In case the first initial uplink partial bandwidth does not overlap with the sub-band full duplex (subband full duplex, SBFD) uplink sub-band, a second initial uplink partial bandwidth is determined, which overlaps with the SBFD uplink sub-band, which is used for initial random access of the terminal device. In the embodiment of the present application, in the scene of SBFD, after the network device configures the first initial uplink partial bandwidth for the terminal device, the terminal device may determine whether to need to adjust the first initial uplink partial bandwidth according to the overlapping condition of the first initial uplink partial bandwidth and the SBFD uplink sub-band. Specifically, the terminal device may directly use the first initial uplink partial bandwidth for initial random access of the terminal device in the case that the first initial uplink partial bandwidth overlaps with the SBFD uplink sub-band, and determine the second initial uplink partial bandwidth in the case that the first initial uplink partial bandwidth does not overlap with the SBFD uplink sub-band, so that the second initial uplink partial bandwidth overlaps with the SBFD uplink sub-band, thereby using the second initial uplink partial bandwidth for initial random access of the terminal device. By the mode, the terminal equipment can be ensured to perform random access in the SBFD scene, so that the communication performance is ensured. In one possible implementation, the method further comprises using the first initial uplink partial bandwidth for initial random access of the terminal device in case the first initial uplink partial bandwidth overlaps with SBFD uplink sub-bands. By the mode, the terminal equipment can be ensured to perform random access in the SBFD scene, so that the communication performance is ensured. In one possible implementation, the second initial upstream fractional bandwidth is determined based on the first initial upstream frac