CN-122029770-A - Methods, apparatus and computer program products for wireless communication

Abstract

A wireless communication method is disclosed. The method comprises the wireless communication terminal sending a wake-up signal WUS to the wireless communication node, wherein WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on the first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or off of the first cell, or information for triggering state transition on the first cell.

Inventors

• MA XUAN
• CHEN MENGZHU
• MA XIAOYING
• GUO QIUJIN
• XU JUN
• DAI BO
• DAI JIANQIANG

Assignees

• 中兴通讯股份有限公司

Dates

Publication Date

20260512

Application Date

20231103

Claims (20)

1. 1. A method of wireless communication, comprising: the wireless communication terminal sends a wake-up signal WUS to the wireless communication node, wherein the WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on the first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or off of the first cell, or information for triggering state transition on the first cell.
2. 2. The wireless communication method of claim 1, wherein the WUS is transmitted on one or more WUS transmission occasions, and the WUS transmission occasions satisfy at least one of: The WUS transmission occasion is associated with a WUS configuration period, and the WUS configuration period includes the one or more WUS transmission occasions; One WUS transmission occasion correlates the first signal of N transmissions and N is a positive number; The Kth WUS transmission occasion in the WUS configuration period is associated with the Kth transmitted first signal and K is a positive integer, or [ X ] in WUS configuration cycle S+k WUS transmission occasions are associated with the K-th transmitted first signal, x is a non-negative integer, K is a positive integer not greater than S, and S is the number of said transmitted first signals.
3. 3. The wireless communication method of claim 2, wherein the transmitted first signal is mapped to the WUS transmission opportunity in response to N >1 according to at least one of: an ascending order of frequency resource indexes for frequency multiplexed WUS transmission opportunities, or An ascending order of time resource indexes for time multiplexing WUS transmission occasions.
4. 4. A method of wireless communication according to claim 2 or 3, wherein the first signal comprises at least one of: A second signal; Discovery of a reference signal DRS; Physical random access channel PRACH opportunities; sounding reference signals, SRS; channel state information reference signal CSI-RS; tracking a reference signal TRS; synchronization signal block SSB, or SSB transmitted on the target cell.
5. 5. The wireless communication method of any of claims 2-4, wherein the first signal to WUS transmission occasions map in an association period and the association period is determined based on at least one of a WUS configuration period, a period of the one or more first signals, a period of the one or more WUS transmission occasions, a predetermined value, or a higher layer parameter.
6. 6. The wireless communication method of any of claims 1-5, wherein a mapping between one or more WUS transmission occasions and one or more transmitted first signals satisfies at least one of: Each transmitted first signal is mapped to at least one WUS transmission occasion within an associated period; One WUS transmission occasion is associated with one or more consecutively transmitted first signals within an association period; The number of times the transmitted first signal is mapped to the WUS transmission occasion is the same, or The WUS transmission opportunity not mapped to the transmitted first signal is invalid.
7. 7. The wireless communication method of any of claims 1-6, wherein the WUS is transmitted according to a spatial relationship with a reference signal, wherein the reference signal comprises at least one of: a first signal; CSI-RS; TRS; SRS; A second signal or Synchronization signal/physical broadcast channel SS/PBCH block.
8. 8. The wireless communication method of any of claims 1-7, wherein WUS transmission opportunities are valid in response to at least one of: The WUS transmission occasion does not overlap with a valid PRACH occasion; the WUS transmission occasion does not overlap with DL symbols; The WUS transmission opportunity does not overlap with the symbols of the SS/PBCH block, or The WUS transmission opportunity begins at least G symbols after the last symbol for transmission of the first signal, where G is a positive integer.
9. 9. The wireless communication method according to any one of claims 1 to 8, wherein the wireless communication terminal performs at least one of: Detecting a first signal and selecting a first signal from said first signal based on a measurement of said first signal, or The WUS is transmitted on one or more WUS transmission occasions associated with the selected first signal.
10. 10. The wireless communication method according to any one of claims 1 to 9, wherein the wireless communication terminal identifies a cell as a first cell based on at least one of: An identifier associated with the cell; the physical cell identity PCI of the cell, or One or more signals transmitted over the cell.
11. 11. The wireless communication method of any of claims 1-10, wherein the identifier associated with the cell is associated with at least one of a physical cell identity, PCI, cell identity, or serving cell index.
12. 12. The wireless communication method of any of claims 1-11, wherein the identifier of the cell is configured by at least one of: A radio resource control, RRC, message; A master information block MIB; A system information block SIB; Core network or A non access stratum NAS.
13. 13. The wireless communication method of any of claims 1-12, wherein the first cell satisfies at least one of: the first cell is a network energy-saving NES cell; The first cell is an SSB-less secondary cell SCell; The first cell is an SIB-less cell; the first cell supports WUS transmissions; Transmitting only on-demand SSB on the first cell, or Only the on-demand SIB is transmitted on the first cell.
14. 14. The wireless communication method of any of claims 1-13, wherein the WUS is associated with at least one of PCI, cell identity, serving cell index, user equipment, UE, ID, or group ID.
15. 15. The wireless communication method according to any one of claims 1 to 14, wherein the wireless communication terminal detects a second signal on the first cell.
16. 16. The wireless communication method of any of claims 3-15, wherein the second signal satisfies at least one of: The second signal comprises at least one of a reduced SSB, a discovery reference signal DRS, a secondary reference signal SSS, or a primary reference signal PSS; The second signal being periodically transmitted, or The second signal is transmitted for a first duration.
17. 17. A method of wireless communication, comprising: The wireless communication node receives a wake-up signal WUS from the wireless communication terminal, wherein the WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on the first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or off of the first cell, or information for triggering a state transition on the first cell.
18. 18. The wireless communication method of claim 17, wherein the WUS is transmitted on one or more WUS transmission occasions, and the WUS transmission occasions satisfy at least one of: The WUS transmission occasion is associated with a WUS configuration period, and the WUS configuration period includes the one or more WUS transmission occasions; One WUS transmission occasion correlates the first signal of N transmissions and N is a positive number; The Kth WUS transmission occasion in the WUS configuration period is associated with the Kth transmitted first signal and K is a positive integer, or [ X ] in WUS configuration cycle S+k WUS transmission occasions are associated with the K-th transmitted first signal, x is a non-negative integer, K is a positive integer not greater than S, and S is the number of said transmitted first signals.
19. 19. The wireless communication method of claim 18, wherein the transmitted first signal is mapped to the WUS transmission opportunity in response to N >1 according to at least one of: an ascending order of frequency resource indexes for frequency multiplexed WUS transmission opportunities, or An ascending order of time resource indexes for time multiplexing WUS transmission occasions.
20. 20. The wireless communication method of claim 18 or 19, wherein the first signal comprises at least one of: A second signal; Discovery of a reference signal DRS; Physical random access channel PRACH opportunities; sounding reference signals, SRS; channel state information reference signal CSI-RS; tracking a reference signal TRS; synchronization signal block SSB, or SSB transmitted on the target cell.

Description

Methods, apparatus and computer program products for wireless communication Technical Field This document relates generally to wireless communications, and in particular to 5th generation (5th Generation,5G) communications or 6th generation (6th Generation,6G) communications. Background For New Radio (NR), there are common signals and channels. For example, the periodicity of the synchronization signal block (Synchronization Signal Block, SSB) and/or system information block (System Information Block, SIB) transmission reduces network dormancy opportunities and increases network power consumption, especially during low or no load. To achieve power savings for the network, it may be considered to reduce Downlink (DL) common signals/channels, such as eliminating or enabling on-demand (on-demand) SSB and/or SIB transmissions in a particular cell. However, without a request from a User Equipment (UE), the gNB cannot obtain the SSB/SIB transmission requirements in time, resulting in poor User experience. Disclosure of Invention This document relates to methods, systems, and computer program products for wireless communications. One aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method comprises the wireless communication terminal sending a wake-up signal WUS to the wireless communication node, wherein WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on a first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or switching off of the first cell, or information for triggering state transition on the first cell. Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, a wireless communication method includes a wireless communication node receiving a wake-up signal WUS from a wireless communication terminal, wherein WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on a first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or off of the first cell, or information for triggering state transition on the first cell. Another aspect of the present disclosure relates to a wireless communication terminal. In one embodiment, a wireless communication terminal includes a communication unit and a processor. The processor is configured to send a wake-up signal WUS to the wireless communication node via the communication unit, wherein WUS carries at least one of information for triggering transmission of a synchronization signal block SSB on the first cell, information for triggering transmission of a system information block SIB on the first cell, information for triggering switching on or off of the first cell, or information for triggering a state transition on the first cell. Another aspect of the disclosure relates to a wireless communication node. In one embodiment, a wireless communication node includes a communication unit and a processor. The processor is configured to receive a wake-up signal WUS from the wireless communication terminal via the communication unit, wherein WUS carries at least one of information for triggering a synchronization signal block SSB transmission on the first cell, information for triggering a system information block SIB transmission on the first cell, information for triggering the first cell to be turned on or off, or information for triggering a state transition on the first cell. Various embodiments may preferably implement the following features: Preferably, WUS is transmitted on one or more WUS transmission occasions, and the WUS transmission occasions satisfy at least one of: The WUS transmission occasion is associated with a WUS configuration period, and the WUS configuration period includes one or more WUS transmission occasions; One WUS transmission occasion correlates the first signal of N transmissions and N is a positive number; The Kth WUS transmission occasion in the WUS configuration period is associated with the Kth transmitted first signal and K is a positive integer, or [ X ] in WUS configuration cycleS+k WUS transmission occasions are associated with the K-th transmitted first signal, x is a non-negative integer, K is a positive integer not greater than S, and S is the number of transmitted first signals. Preferably, in response to N >1, the transmitted first signal is mapped to WUS transmission occasions according to at least one of: an ascending order of frequency resource indexes for frequency multiplexed WUS transmission opportunities, or An ascending order of time resource indexes for time multiplexing WUS transmission occasions. Preferably, the first signal comprises at least one of: A second signal; Discovery of a reference signal DRS; Physical random acces