US-12627398-B2 - Full-duplex cell indication for full-duplex operation

Abstract

Methods, systems, and devices for wireless communications are described. In one aspect, a base station may transmit an indication of a communications mode capability associated with establishing a connection with the base station, and a user equipment (UE) may establish a connection with the base station if the UE has the communications mode capability. In this aspect, the base station may bar UEs that lack the communications mode capability from establishing a connection with the base station such that the base station may avoid configuring or scheduling communications differently for devices with different capabilities. In another aspect, a base station may transmit an indication of whether the base station operates in a full-duplex mode, a half-duplex mode, or both, and a UE may establish a connection with the base station based on whether the base station operates in the full-duplex mode, the half-duplex mode, or both.

Inventors

• Qian Zhang
• Navid Abedini
• Yan Zhou
• Kapil Gulati
• Junyi Li
• Tao Luo

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260512

Application Date

20210923

Claims (20)

1. 1 . A method for wireless communication at a user equipment (UE), comprising: receiving, from a network device, broadcast signaling that includes a bit indicating a duplexing mode capability associated with establishing a connection with the network device, the duplexing mode capability comprising a full-duplex capability, a half-duplex capability, or both; establishing the connection with the network device based at least in part on a selection between the network device and a second network device, the connection being established with the network device based at least in part on the UE having a corresponding duplexing mode capability that is the same as the duplexing mode capability of the network device indicated by the broadcast signaling, wherein the bit indicating the duplexing mode capability indicates establishing of connectivity with the network device is barred for any UE having a duplexing mode capability that is different from the duplexing mode capability of the network device; and communicating with the network device via the established connection.
2. 2 . The method of claim 1 , further comprising: identifying a default duplexing mode capability associated with establishing the connection with the network device in absence of the broadcast signaling indicating the duplexing mode capability.
3. 3 . The method of claim 2 , wherein the default duplexing mode capability comprises the half-duplex capability.
4. 4 . The method of claim 1 , wherein the duplexing mode capability comprises the full-duplex capability, the method further comprising: determining that the UE has the full-duplex capability, wherein establishing the connection with the network device is based at least in part on the UE having the full-duplex capability.
5. 5 . The method of claim 1 , wherein establishing the connection with the network device comprises: establishing the connection with the network device based at least in part on whether the UE has the half-duplex capability, the full-duplex capability, or both.
6. 6 . The method of claim 1 , further comprising: receiving, from the network device, signaling indicating cell-specific configurations for communications with the network device based at least in part on the duplexing mode capability.
7. 7 . The method of claim 1 , further comprising: receiving, from the network device, one or more of semi-persistent scheduling information, control information, or random-access parameters based at least in part on the duplexing mode capability.
8. 8 . The method of claim 1 , wherein the broadcast signaling comprises system information.
9. 9 . The method of claim 1 , wherein the bit comprises a single bit indicator indicating the duplexing mode capability.
10. 10 . A method for wireless communication at a network device, comprising: transmitting broadcast signaling that includes a bit indicating a duplexing mode capability associated with establishing a connection with the network device, the duplexing mode capability comprising a full-duplex capability, a half-duplex capability, or both, wherein the bit indicating the duplexing mode capability indicates establishing of connectivity with the network device is barred for any user equipment (UE) having a duplexing mode capability that is different from the duplexing mode capability of the network device; establishing the connection with a UE based at least in part on a selection between the network device and a second network device, the connection being established with the UE and the network device based at least in part on the UE having a corresponding duplexing mode capability that is the same as the duplexing mode capability of the network device indicated by the broadcast signaling; and communicating with the UE via the established connection.
11. 11 . The method of claim 10 , wherein the duplexing mode capability comprises the full-duplex capability, and the UE has the full-duplex capability.
12. 12 . The method of claim 10 , wherein the duplexing mode capability comprises the half-duplex capability, and wherein the UE has the half-duplex capability.
13. 13 . The method of claim 10 , wherein the UE has the half-duplex capability, the full-duplex capability, or both.
14. 14 . The method of claim 10 , further comprising: transmitting signaling indicating cell-specific configurations for communications with the network device based at least in part on the duplexing mode capability.
15. 15 . The method of claim 10 , further comprising: transmitting one or more of semi-persistent scheduling information, control information, or random-access parameters based at least in part on the duplexing mode capability.
16. 16 . The method of claim 10 , wherein the broadcast signaling comprises system information.
17. 17 . The method of claim 10 , wherein the bit comprises a single bit indicator indicating the duplexing mode capability.
18. 18 . The method of claim 10 , wherein the network device is configured with a default duplexing mode capability associated with establishing the connection with the network device in absence of the broadcast signaling indicating the duplexing mode capability.
19. 19 . The method of claim 18 , wherein the default duplexing mode capability comprises the half-duplex capability.
20. 20 . A method for wireless communication at a user equipment (UE), comprising: receiving, from a network device, broadcast signaling that includes a bit indicating whether the network device operates in a full-duplex mode, a half-duplex mode, or both, in accordance with a duplexing mode capability of the network device; establishing a connection with the network device based at least in part on a selection between the network device and a second network device, the connection being established with the network device based at least in part on the network device operating in the full-duplex mode, the half-duplex mode, or both and the UE operating in a same corresponding full-duplex mode, a corresponding half-duplex mode, or both, in accordance with a corresponding duplexing mode capability of the UE, wherein the bit indicates establishing of connectivity with the network device is barred for any UE having a duplexing mode capability that is different from the duplexing mode capability of the network device; and communicating with the network device via the established connection.

Description

FIELD OF TECHNOLOGY The following relates to wireless communications, including full-duplex cell indication for full-duplex operation. BACKGROUND Wireless communications 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 capable of supporting 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 technologies 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 communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE). Some wireless communications systems may support full-duplex communications, half-duplex communications, or both between a base station and a UE. Improved techniques for facilitating full-duplex communications or half-duplex communications between base stations and UEs in a wireless communications system may be desirable. SUMMARY The described techniques relate to improved methods, systems, devices, and apparatuses that support full-duplex cell indication for full-duplex operation. In one aspect, a base station may transmit an indication of a communications mode capability associated with establishing a connection with the base station, and a user equipment (UE) may establish a connection with the base station if the UE has the communications mode capability. In this aspect, the base station may bar UEs that lack the communications mode capability from establishing a connection with the base station such that the base station may avoid configuring or scheduling communications differently for devices with different capabilities. In another aspect, a base station may transmit an indication of whether the base station operates in a full-duplex mode, a half-duplex mode, or both, and a UE may establish a connection with the base station based on whether the base station operates in the full-duplex mode, the half-duplex mode, or both. A method for wireless communication at a UE is described. The method may include receiving, from a base station, broadcast signaling indicating a communications mode capability associated with establishing a connection with the base station, establishing the connection with the base station based on the UE having the communications mode capability indicated in the broadcast signaling, and communicating with the base station over the established connection. An apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive, from a base station, broadcast signaling indicating a communications mode capability associated with establishing a connection with the base station, establish the connection with the base station based on the UE having the communications mode capability indicated in the broadcast signaling, and communicate with the base station over the established connection. Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving, from a base station, broadcast signaling indicating a communications mode capability associated with establishing a connection with the base station, means for establishing the connection with the base station based on the UE having the communications mode capability indicated in the broadcast signaling, and means for communicating with the base station over the established connection. A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to receive, from a base station, broadcast signaling indicating a communications mode capability associated with establishing a connection with the base station, establish the connection with the base station based on the UE having the communications mode capability indicated in the broadcast signaling, and communicate with the base station over the established connection. Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a default communications mode capability associated with esta