KR-102963544-B1 - How to restore a wireless radio link

KR102963544B1KR 102963544 B1KR102963544 B1KR 102963544B1KR-102963544-B1

Abstract

The present disclosure relates to a wireless radio link recovery method. In various embodiments, the method comprises determining a beam failure event for a first cell and transmitting a beam recovery request message over a shared uplink channel when available. In another embodiment, the method comprises determining that the shared uplink channel is unavailable for transmitting a beam recovery request message and transmitting a resource request to request allocation of the shared uplink channel using a second cell.

Inventors

가오 보
루 자오후아
리 유 응곡
동 페이
한 시앙후이

Assignees

지티이 코포레이션

Dates

Publication Date: 20260511
Application Date: 20190628

Claims (20)

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As a wireless radio link recovery method, A step of determining a beam failure event for a first cell according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node by a wireless communication device; A step of determining that an RQ transmission counter associated with the transmission of a resource request (RQ) message associated with beam recovery has not reached the maximum number of transmissions of said RQ message; A step of incrementing the above RQ transmission counter; A step of allowing the transmission of the RQ message in response to the determination that the RQ transmission counter has not reached the maximum number of RQ transmissions - the RQ transmission counter is reset when an RQ transmission is triggered and there are no other pending RQ messages corresponding to the same RQ configuration - ; and A step of transmitting the RQ message on a physical uplink control channel (PUCCH) resource to the wireless communication node via a second cell by the wireless communication device - the RQ message includes a first scheduling request (SR) message associated with parameters of a beam recovery configuration and requests the allocation of a physical uplink shared channel (PUSCH) resource, and the first SR message has a higher transmission priority compared to a second SR message not used for beam recovery - A wireless radio link recovery method including
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As a wireless radio link recovery method, A step of determining a beam failure event for a first cell according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node by a wireless communication device; A step of determining, by the above wireless communication device, whether a physical uplink shared channel (PUSCH) resource is available for transmitting a beam recovery request message; A step of transmitting the beam recovery request message on the PUSCH resource to the wireless communication node in response to the wireless communication device determining that the PUSCH resource is available for transmitting the beam recovery request message - the beam recovery request message includes the index of the first cell - ; A step of determining that an RQ transmission counter associated with the transmission of a resource request (RQ) message associated with beam recovery has not reached the maximum number of transmissions of said RQ message; A step of incrementing the above RQ transmission counter; A step of allowing the transmission of the RQ message in response to the determination that the RQ transmission counter has not reached the maximum number of RQ transmissions - the RQ transmission counter is reset when an RQ transmission is triggered and there are no other pending RQ messages corresponding to the same RQ configuration - ; and A step of transmitting the RQ message on an uplink control channel to the wireless communication node via a second cell in response to the wireless communication device determining that the PUSCH resource is not available for transmitting the beam recovery request message—the RQ message includes a first scheduling request (SR) message that requests the allocation of the PUSCH resource and is associated with parameters of the beam recovery configuration, wherein the first SR message has a higher transmission priority compared to a second SR message that is not used for beam recovery. A wireless radio link recovery method including
A wireless radio link recovery method according to claim 6, wherein the beam recovery request message comprises a medium access control element (MAC-CE) message including an index of a candidate reference signal for the first cell or an indication that a candidate reference signal for the first cell is not identified.
A wireless radio link recovery method according to claim 6, wherein the step of transmitting the beam recovery request message includes the step of transmitting the beam recovery request message on the PUSCH resource using the second cell.
A wireless radio link recovery method according to claim 6, wherein the beam recovery request message corresponds to a plurality of cells associated with the recovery configuration.
In paragraph 6, the step of determining a beam failure event for the first cell is, A step of determining that one or more values representing the channel quality of the one or more reference signal resources are outside the acceptable range determined by the quality threshold; Step of incrementing the beam failure counter; and Step of determining that the beam failure counter is greater than or equal to the beam failure counter threshold for determining the beam failure event A wireless radio link recovery method that includes
In paragraph 6, the step of transmitting the RQ message comprises the following conditions, Condition that the PUCCH resource for the above RQ message does not overlap with the measurement gap; and Condition that the PUCCH resource for the above RQ message does not overlap with the PUSCH resource A wireless radio link recovery method comprising the step of transmitting the above RQ message when this is satisfied.
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In paragraph 6, Pending RQ messages to be transmitted, Transmitting a protocol data unit (PDU) message containing the beam recovery request message by the above wireless communication device; or The above-mentioned first cell has been deactivated. A wireless radio link recovery method that includes an additional step of canceling in response.
In paragraph 6, the step of transmitting the RQ message is, A wireless radio link recovery method comprising the step of transmitting the RQ message with a higher transmission priority than the non-periodic SRS when the PUCCH assigned to the RQ message overlaps with the sounding reference signal (SRS) in time units.
In paragraph 6, A step of determining that at least one of the RQ prohibition timer is stopped or expired; and When the RQ prohibition timer is stopped or expires, the step of allowing the transmission of the RQ message and restarting the RQ prohibition timer A wireless radio link recovery method that further includes
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A wireless radio link recovery method according to claim 6, wherein the RQ transmission counter is reset when an RQ transmission is triggered and there is no other pending RQ message corresponding to the same RQ configuration.
A wireless communication device comprising a processor and a memory, wherein the processor is configured to read computer code from the memory to perform steps, and the steps are, A step of determining a beam failure event for a first cell according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node by a wireless communication device; A step of determining, by the above wireless communication device, whether a physical uplink shared channel (PUSCH) resource is available for transmitting a beam recovery request message; A step of transmitting the beam recovery request message on the PUSCH resource to the wireless communication node in response to the wireless communication device determining that the PUSCH resource is available for transmitting the beam recovery request message - the beam recovery request message includes the index of the first cell - ; A step of determining that an RQ transmission counter associated with the transmission of a resource request (RQ) message associated with beam recovery has not reached the maximum number of transmissions of said RQ message; A step of incrementing the above RQ transmission counter; A step of allowing the transmission of the RQ message in response to the determination that the RQ transmission counter has not reached the maximum number of RQ transmissions - the RQ transmission counter is reset when an RQ transmission is triggered and there are no other pending RQ messages corresponding to the same RQ configuration - ; and A step of transmitting the RQ message on an uplink control channel to the wireless communication node via a second cell in response to the wireless communication device determining that the PUSCH resource is not available for transmitting the beam recovery request message—the RQ message includes a first scheduling request (SR) message that requests the allocation of the PUSCH resource and is associated with parameters of the beam recovery configuration, wherein the first SR message has a higher transmission priority compared to a second SR message that is not used for beam recovery. A wireless communication device comprising a processor and memory, comprising
In paragraph 18, the above beam recovery request message corresponds to a plurality of cells associated with a recovery configuration, in a wireless communication device.
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Description

How to restore a wireless radio link The present disclosure relates generally to wireless communication, and in particular to wireless radio link recovery procedures. Wireless communication technology is transforming the world into a rapidly growing networked society. High-speed and low-latency wireless communication relies on the efficient management and allocation of network resources between user wireless communication devices and wireless communication nodes (including, but not limited to, wireless base stations). Unlike traditional circuit-switched networks, efficient wireless access networks may not rely on dedicated user channels. Instead, wireless network resources (e.g., carrier frequency, transmission beam, and transmission time slots) for transmitting voice or other types of data between wireless communication devices and wireless communication nodes can be allocated and changed as transmission conditions or configurations change. In one embodiment, a wireless radio link recovery method comprises the step of determining a beam failure event for a first cell by a wireless communication device according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node. The wireless communication device then determines that a physical uplink shared channel (PUSCH) resource is available for transmitting a beam recovery request message. The method also comprises the step of transmitting a beam recovery request message on the PUSCH resource to a wireless communication node by the wireless communication device, wherein the beam recovery request message includes an index of the first cell or an index of a cell group including the first cell. In another embodiment, another wireless radio link recovery method comprises the step of determining a beam failure event for a first cell by a wireless communication device according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node. The method also comprises the step of transmitting a resource request (RQ) message on a physical uplink control channel (PUCCH) resource to a wireless communication node through a second cell by a wireless communication device, said RQ message requests the allocation of the PUCCH resource. In another embodiment, another wireless radio link recovery method includes the step of determining a beam failure event for a first cell by a wireless communication device according to a channel quality corresponding to one or more reference signal resources transmitted by a wireless communication node. The wireless communication device then determines whether a PUSCH resource is available to transmit a beam recovery request message. If the PUSCH resource is available to transmit a beam recovery request message, the wireless communication device transmits a beam recovery request message on the PUSCH resource to a wireless communication node, said beam recovery request message includes an index of the first cell or an index of a cell group including the first cell. However, if the PUSCH resource is not available to transmit a beam recovery request message, the wireless communication device transmits a resource request (RQ) message on a physical uplink control channel to a wireless communication node using a second cell, said RQ message requests the allocation of a PUSCH resource. Other aspects and alternatives of the aforementioned embodiments and their implementations are described in more detail in the drawings, detailed description, and claims below. FIG. 1 illustrates an exemplary system diagram including a wireless communication device and a wireless communication node according to various embodiments. Figure 2 illustrates an example of a wireless radio link recovery procedure of the prior art. FIG. 3 illustrates an example of a method for restoring a wireless radio link according to various embodiments. FIG. 4 illustrates another example of a method for restoring a wireless radio link according to various embodiments. FIG. 5 illustrates another example of a method for restoring a wireless radio link according to various embodiments. FIG. 6 illustrates another example of a method for restoring a wireless radio link according to various embodiments. FIG. 7 illustrates an example of a procedure for determining a beam failure event according to various embodiments. FIG. 8 illustrates an example of additional details of a method for restoring a wireless radio link according to various embodiments. FIG. 9 illustrates another example of additional details of a method for wireless radio link recovery according to various embodiments. FIG. 10 illustrates another example of additional details of a method for wireless radio link recovery according to various embodiments. FIG. 11 illustrates another example of additional details of a method for wireless radio link recovery according to various embodiments. FIG. 12 illustrates an ex