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EP-4271077-B1 - INFORMATION DETERMINATION METHOD AND APPARATUS, INFORMATION TRANSMISSION METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM

EP4271077B1EP 4271077 B1EP4271077 B1EP 4271077B1EP-4271077-B1

Inventors

  • WU, ZUOMIN

Dates

Publication Date
20260513
Application Date
20201230

Claims (9)

  1. An information determination method, applied in a terminal device, the method comprising: based on a first frequency range, determining (410) information used by the terminal device in an initial access procedure; wherein the first frequency range comprises 52.6 GHz to 71 GHz; wherein the information used by the terminal device in the initial access procedure comprises first subcarrier spacing; wherein a first Synchronization Signal Block, SSB, is detected by the terminal device on a first frequency band, the first subcarrier spacing refers to subcarrier spacing corresponding to first SSB transmission, and the first frequency band belongs to the first frequency range; wherein: the first subcarrier spacing is predefined by a communication protocol; or the first subcarrier spacing is determined according to an association relationship, and the association relationship comprises an association relationship between subcarrier spacing corresponding to SSB transmission and a frequency band in the first frequency range; wherein the information used by the terminal device in the initial access procedure comprises subcarrier offset indication information; wherein the subcarrier offset indication information is carried in a PBCH in the first SSB, the first SSB is an SSB detected by the terminal device on the first frequency band, and the first frequency band belongs to the first frequency range; the subcarrier offset indication information is used to indicate an offset between a subcarrier 0 of a second Common Resource Block, CRB, and a subcarrier 0 of the first Resource Block, RB, of the first SSB in number of subcarriers, a center of the subcarrier 0 of the second CRB coincides with a center of the subcarrier 0 of a first CRB, and the first CRB overlaps with the subcarrier 0 of the first RB of the first SSB, wherein the second CRB is N SSB-CRB and is obtained according to a higher-layer parameter offsetToPointA, wherein the information used by the terminal device in the initial access procedure further comprises Quasi-co-location, QCL, hypothesis indication information, wherein the QCL hypothesis indication information is indicated by second information carried in the PBCH in the first SSB, and wherein the QCL hypothesis indication information occupies 1 bit; wherein the information used by the terminal device in the initial access procedure further comprises the second subcarrier spacing, the second subcarrier spacing refers to subcarrier spacing corresponding to first information transmission, the first information is associated with the first SSB, and the first information comprises at least one of the following: System Information Block (SIB) 1, a message 2 or a message 4 transmitted during the initial access procedure, a paging message, and a system message; wherein the second subcarrier spacing is determined by the terminal device based on first indication information, the first subcarrier spacing and the first frequency band, the first indication information is common subcarrier spacing indication information in the PBCH, and there is an association relationship between the first frequency band and the first subcarrier spacing and the second subcarrier spacing.
  2. The method according to claim 1, wherein: subcarrier spacing corresponding to the subcarrier offset indication information is predefined by a communication protocol; or, the subcarrier spacing corresponding to the subcarrier offset indication information is equal to first subcarrier spacing; or, the subcarrier spacing corresponding to the subcarrier offset indication information is equal to second subcarrier spacing.
  3. The method according to claim 1 or 2, wherein: subcarrier spacing corresponding to the first CRB is predefined by a communication protocol; or, the subcarrier spacing corresponding to the first CRB is equal to the subcarrier spacing corresponding to the subcarrier offset indication information; or, the subcarrier spacing corresponding to the first CRB is equal to first subcarrier spacing; or, the subcarrier spacing corresponding to the first CRB is equal to second subcarrier spacing.
  4. The method according to any one of claims 1 to 3, wherein: subcarrier spacing corresponding to the second CRB is predefined by a communication protocol; or, the subcarrier spacing corresponding to the second CRB is equal to the subcarrier spacing corresponding to the first CRB; or, the subcarrier spacing corresponding to the second CRB is equal to the subcarrier spacing corresponding to the subcarrier offset indication information; or, the subcarrier spacing corresponding to the second CRB is equal to first subcarrier spacing; or, the subcarrier spacing corresponding to the second CRB is equal to second subcarrier spacing.
  5. The method according to any one of claims 1 to 4, wherein the subcarrier spacing corresponding to the second CRB is equal to the subcarrier spacing corresponding to the first CRB, and the second CRB and the first CRB are the same CRB.
  6. The method according to claim 1, wherein the second information comprises at least one of the following: third information in MIB, MIB message type indication information, and half-frame indication information; wherein the third information comprises at least one of the following information: common subcarrier spacing indication information, subcarrier offset indication information, TypeA DMRS position indication information, SIB1 PDCCH configuration information, and a spare bit.
  7. An information transmission method, applied in a network device, the method comprising: sending a first Synchronization Signal Block, SSB, to a terminal device via a first frequency band, wherein the first frequency band belongs to a first frequency range; wherein the first frequency range comprises 52.6 GHz to 71 GHz; wherein subcarrier spacing corresponding to first SSB transmission is first subcarrier spacing; wherein: the first subcarrier spacing is predefined by a communication protocol; or the first subcarrier spacing is determined according to an association relationship, and the association relationship comprises an association relationship between subcarrier spacing corresponding to SSB transmission and a frequency band in the first frequency range; wherein the information used by the terminal device in the initial access procedure comprises subcarrier offset indication information; wherein the subcarrier offset indication information is carried in a PBCH in the first SSB, the first SSB is an SSB detected by the terminal device on a first frequency band, and the first frequency band belongs to the first frequency range; the subcarrier offset indication information is used to indicate an offset between a subcarrier 0 of a second Common Resource Block, CRB, and a subcarrier 0 of the first Resource Block, RB, of the first SSB in number of subcarriers, a center of the subcarrier 0 of the second CRB coincides with a center of the subcarrier 0 of a first CRB, and the first CRB overlaps with the subcarrier 0 of the first RB of the first SSB, wherein the second CRB is N SSB-CRB and is obtained according to a higher-layer parameter offsetToPointA; wherein second information carried in a PBCH in the first SSB is used to indicate Quasi-co-location, QCL, hypothesis indication information, and the QCL hypothesis indication information occupies 1 bit; wherein the information used by the terminal device in the initial access procedure further comprises the second subcarrier spacing, the second subcarrier spacing refers to subcarrier spacing corresponding to first information transmission, the first information is associated with the first SSB, and the first information comprises at least one of the following: System Information Block (SIB) 1, a message 2 or a message 4 transmitted during the initial access procedure, a paging message, and a system message; wherein the second subcarrier spacing is determined by the terminal device based on first indication information, the first subcarrier spacing and the first frequency band, the first indication information is common subcarrier spacing indication information in the PBCH, and there is an association relationship between the first frequency band and the first subcarrier spacing and the second subcarrier spacing.
  8. An information determination apparatus, provided in a terminal device, the apparatus being configured to perform the method according to any one of claims 1 to 6.
  9. An information transmission apparatus, provided in a network device, the apparatus being configured to perform the method according to claim 7.

Description

TECHNICAL FIELD Embodiments of the present disclosure relate to the communication technical field, and more specifically, to an information determination method, an information transmission method, an apparatus, a device and a storage medium. BACKGROUND The studies of the New Radio (NR) system currently mainly consider two frequency ranges: Frequency Range 1 (FR1) and Frequency Range 2 (FR2). A frequency included in FR1 is smaller than a frequency included in FR2. With the evolution of the NR system, studies of technologies on a new frequency range (referred to as "high frequency" in embodiments of the present disclosure) are also started. When the NR system is deployed at a high frequency, the high frequency includes both an unlicensed spectrum (shared spectrum) and a licensed spectrum (unshared spectrum). SSB (Synchronization Signal/PBCH (Physical Broadcast Channel) Block) transmission on the licensed spectrum may not require multiple candidate positions, while SSB transmission on the unlicensed spectrum may require multiple candidate positions so that a network device may, after Listen Before Talk (LBT) succeeds, perform SSB transmission at at least one candidate position among the multiple candidate positions. In addition, SSB transmission or System Information Block 1 (SIB1) transmission in a high frequency may introduce new subcarrier spacing (SCS), or may introduce more SSB numbers in the high frequency, for example, 128 SSBs. Therefore, in a high frequency, how to determine the meaning of information transmitted in the PBCH, or how to determine information used in an initial access procedure, needs further discussions and researches. CN111669235A discloses a high-frequency discovery signal transmission method used for an unauthorized frequency band of a 5G system. According to the method, an SSB comprises first information, and the subcarrier interval of the SSB is a first subcarrier interval; the first information is used for indicating subcarrier intervals of a PDCCH and a PDSCH associated with the SSB, namely second subcarrier intervals; and the first information is A bits and is used for indicating B second subcarrier intervals. XP051823447 (R1-1912507), a 3GPP non-patent literature document titled "Enhancements to initial access procedure" provides additional teachings for determination of parameters related to initial access. SUMMARY The invention is set out in the appended set of claims. Embodiments of the present disclosure provide an information determination method, an information transmission method, an apparatus, a device, and a storage medium. The technical solutions are as defined in the present claims. The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: By designing the information transmission in the PBCH on a high frequency band, during the initial access procedure, the network device sends information such as SSB or SIB 1 to the terminal device based on the high frequency band, so that the terminal device, based on the high frequency band, the received SSB and PBCH, determines information used in the initial access procedure, such as, determining the subcarrier spacing corresponding to SSB transmission, the subcarrier spacing corresponding to SIB1 transmission, subcarrier offset indication information, QCL hypothesis indication information, etc., and thus the terminal device subsequently uses the information to access a cell where the network device resides to realize information interaction and data transmission with the network device through the high frequency band. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort. FIG. 1 is a schematic diagram of a system architecture provided by an embodiment of the present disclosure;FIG. 2 is a schematic diagram of kSSB indication provided by an embodiment of the present disclosure;FIG. 3 is a schematic diagram of kSSB indication provided by another embodiment of the present disclosure;FIG. 4 is a flowchart of an information determination method provided by an embodiment of the present disclosure;FIG. 5 is a schematic diagram of kSSB indication provided by another embodiment of the present disclosure;FIG. 6 is a schematic diagram of kSSB indication provided by another embodiment of the present disclosure;FIG. 7 is a schematic diagram of kSSB indication provided by another embodiment of the present disclosure;FIG. 8 is a schematic diagram of kSSB indication provided by another embodiment of the present disclosure;FIG. 9 is a block diagram of an information determ