CN-122029888-A - System information for assisted access in wireless communications

Abstract

Methods, systems, and devices for wireless communications are described. A User Equipment (UE) may receive a broadcast System Information (SI) message from a first cell, wherein the broadcast SI message includes SI for connecting to a second cell. The broadcast SI message may include a Synchronization Signal Block (SSB) message, a System Information Block (SIB) message, a Master Information Block (MIB) message, or any combination thereof. The UE may then transmit a Random Access Channel (RACH) message to the first cell or the second cell based on the SI included in the received broadcast SI message, and perform a random access procedure with the second cell to establish a radio connection with the second cell based on transmitting the RACH message. The UE may then communicate one or more messages with the second cell based on the random access procedure.

Inventors

• A. Hassan zadson
• K. Husseini
• LUO TAO

Assignees

• 高通股份有限公司

Dates

Publication Date

20260512

Application Date

20241001

Priority Date

20231016

Claims (20)

1. 1. A User Equipment (UE), the UE comprising: One or more of the memories may be provided, the one or more memories store processor executable code; and One or more processors coupled with the one or more memories and operable, individually or collectively, to execute the code to cause the UE to: Receiving a broadcast system information message from a first serving cell, wherein the broadcast system information message includes system information for connecting to a second serving cell, and wherein the broadcast system information message includes a synchronization signal block message, a system information block message, a master information block message, or any combination thereof; transmitting a random access channel message to the first serving cell or the second serving cell based at least in part on receiving the system information included within the broadcast system information message; Performing a random access procedure with the second serving cell to establish a wireless connection with the second serving cell based at least in part on transmitting the random access channel message, and One or more messages are communicated with the second serving cell based at least in part on the random access procedure.
2. 2. The UE of claim 1, wherein the broadcast system information message includes one or more bit fields indicating whether the broadcast system information message includes the system information for connecting to the second serving cell.
3. 3. The UE of claim 1, wherein the system information for connecting to the second serving cell comprises one or more random access channel sequences for transmitting the random access channel message, resources associated with random access channel occasions, one or more random access response search space configurations, one or more bandwidth portions for communicating with the second serving cell, a set of control resources associated with the second serving cell, or any combination thereof.
4. 4. The UE of claim 1, wherein the system information included within the broadcast system information message indicates whether a first set of resources for communicating with the first serving cell is located on a separate component carrier than a second set of resources for communicating with the second serving cell or whether the first set of resources for communicating with the first serving cell is within the same component carrier as the second set of resources for communicating with the second serving cell.
5. 5. The UE of claim 1, wherein to transmit the random access channel message, the one or more processors are operable individually or collectively to execute the code to cause the UE to: And transmitting the random access channel message to the second serving cell according to the system information included in the broadcast system information message.
6. 6. The UE of claim 1, wherein the one or more processors are further operable individually or collectively to execute the code to cause the UE to: A second broadcast system information message is received from the second serving cell based at least in part on transmitting the random access channel message, wherein the second broadcast system information message includes additional system information for connecting to the second serving cell, wherein the random access procedure is performed with the second serving cell in accordance with the system information and the additional system information.
7. 7. The UE of claim 6, wherein to send the random access channel message, the one or more processors are operable individually or collectively to execute the code to cause the UE to: The method further includes transmitting the random access channel message to the second serving cell, wherein the random access channel message includes a wake-up indication for the second serving cell, and wherein the second broadcast system information message is received based at least in part on the wake-up indication.
8. 8. The UE of claim 6, wherein to send the random access channel message, the one or more processors are operable individually or collectively to execute the code to cause the UE to: the method includes transmitting the random access channel message to the first serving cell, wherein the random access channel message includes a wake-up indication for the second serving cell and a request for the first serving cell to relay the random access channel message and the wake-up indication to the second serving cell, and wherein the second broadcast system information message is received based at least in part on the wake-up indication.
9. 9. The UE of claim 6, wherein the second broadcast system information message comprises a system information block message.
10. 10. The UE of claim 1, wherein the system information included within the broadcast system information message includes one or more bit fields associated with a system information block configuration, wherein the one or more bit fields are associated with a first interpretation if the system information block configuration is applied to the first serving cell, and wherein the one or more bit fields are associated with a second interpretation if the system information block configuration is applied to the second serving cell.
11. 11. The UE of claim 1, wherein the one or more processors are further operable individually or collectively to execute the code to cause the UE to: one or more synchronization signal block messages are received from the second serving cell based at least in part on transmitting the random access channel message, wherein performing the random access procedure is based at least in part on receiving the one or more synchronization signal block messages.
12. 12. The UE of claim 1, wherein the first serving cell and the second serving cell are supported by a same network entity.
13. 13. The UE of claim 1, wherein the first serving cell is associated with a first radio access technology, and wherein the second serving cell is associated with a second radio access technology.
14. 14. The UE of claim 13, wherein the first radio access technology comprises a fifth generation radio access technology, a new radio access technology, or both, and wherein the second radio access technology comprises a sixth generation radio access technology.
15. 15. A network entity associated with a first serving cell, the network entity comprising: One or more of the memories may be provided, the one or more memories store processor executable code; and One or more processors coupled with the one or more memories and operable, individually or collectively, to execute the code to cause the network entity to via the first serving cell: Transmitting a broadcast system information message to a User Equipment (UE), wherein the broadcast system information message includes system information usable by the UE to connect to a second serving cell, and wherein the broadcast system information message includes a synchronization signal block message, a system information block message, a master information block message, or any combination thereof; Receiving a random access channel message from the UE based at least in part on transmitting the system information included in the broadcast system information message, and The random access channel message is relayed to the second serving cell to facilitate a random access procedure between the UE and the second serving cell.
16. 16. The network entity of claim 15, wherein the broadcast system information message comprises one or more bit fields indicating whether the broadcast system information message includes the system information for connecting to the second serving cell.
17. 17. The network entity of claim 15, wherein the system information for connecting to the second serving cell comprises one or more random access channel sequences for transmitting the random access channel message, resources associated with random access channel occasions, one or more random access response search space configurations, one or more bandwidth portions for communicating with the second serving cell, a set of control resources associated with the second serving cell, or any combination thereof.
18. 18. The network entity of claim 15, wherein the system information included within the broadcast system information message indicates whether a first set of resources for communicating with the first serving cell is located on a separate component carrier than a second set of resources for communicating with the second serving cell or whether the first set of resources for communicating with the first serving cell is within the same component carrier as the second set of resources for communicating with the second serving cell.
19. 19. The network entity of claim 15, wherein the random access channel message comprises a wake-up indication for the second serving cell and a request for the first serving cell to relay the random access channel message and the wake-up indication to the second serving cell, and wherein relaying the random access channel message is based at least in part on receiving the wake-up indication and the request.
20. 20. The network entity of claim 15, wherein the system information included within the broadcast system information message includes one or more bit fields associated with a system information block configuration, wherein the one or more bit fields are associated with a first interpretation if the system information block configuration is applied to the first serving cell, and wherein the one or more bit fields are associated with a second interpretation if the system information block configuration is applied to the second serving cell.

Description

System information for assisted access in wireless communications Cross reference This patent application claims the benefit of U.S. patent application Ser. No. 18/487,859, entitled "SYSTEM INFORMATION FOR ASSISTED ACCESS IN WIRELESS COMMUNICATIONS (System information for assisted Access in Wireless COMMUNICATIONS)" filed by HASANZADEZONUZY et al at 10/16 of 2023, which is assigned to the assignee of the present application and expressly incorporated herein by reference. Technical Field The following relates to wireless communications, including system information for assisted access in wireless communications. Background Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-advanced (LTE-a) systems, or LTE-a Pro systems, and fifth generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ techniques such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal FDMA (OFDMA), or discrete fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include one or more base stations, each supporting wireless communication for communication devices, which may be referred to as User Equipment (UEs). With the development and deployment of future generations of Radio Access Technologies (RATs), many wireless networks will support multiple RATs during a "migration period". For example, as wireless devices gradually "migrate" to sixth generation (6G) devices, the wireless network will support both 5G and 6G devices. However, when handling migration across RATs, several challenges exist. Disclosure of Invention The described technology relates to improved methods, systems, devices, and apparatus supporting system information for assisted access in wireless communications. In general, aspects of the disclosure relate to signaling for facilitating connections between wireless devices and network cells and facilitating network migration between/across Radio Access Technologies (RATs), e.g., migration from fifth generation (5G) communications to sixth generation (6G) communications. In particular, aspects of the present disclosure enable a source cell (e.g., a 5G cell) to include within System Information (SI) broadcast by the source cell SI for connection with a target cell (e.g., a 6G cell). By including such SI within broadcast SI messages (e.g., master Information Block (MIB), system Information Block (SIB), synchronization Signal Block (SSB)), the techniques described herein may reduce unnecessary signaling performed by a target cell and prevent a wireless device from having to establish a full connection with a source cell in order to communicate with the target cell. Drawings Fig. 1 illustrates an example of a wireless communication system supporting system information for assisted access in wireless communication, in accordance with one or more aspects of the present disclosure. Fig. 2 illustrates an example of a wireless communication system supporting system information for assisted access in wireless communication, in accordance with one or more aspects of the present disclosure. Fig. 3 illustrates an example of a process flow to support system information for assisted access in wireless communications, in accordance with one or more aspects of the present disclosure. Fig. 4 illustrates an example of a process flow to support system information for assisted access in wireless communications, in accordance with one or more aspects of the present disclosure. Fig. 5 and 6 illustrate block diagrams of devices supporting system information for assisted access in wireless communications, in accordance with one or more aspects of the present disclosure. Fig. 7 illustrates a block diagram of a communication manager supporting system information for assisted access in wireless communication, in accordance with one or more aspects of the present disclosure. Fig. 8 illustrates a diagram of a system including a device supporting system information for assisted access in wireless communication, in accordance with one or more aspects of the present disclosure. Fig. 9 and 10 illustrate block diagrams of devices supporting system information for assisted access in wireless communications, in accordance with one or more aspects of the present disclosure. Fig. 11 illustrates a block diagram of a communication manager supporting system information for assisted access in wireless communication, in accordance with one or more aspects of the present disclosur