CN109803286B

CN109803286B - Processing method, device and terminal after beam failure

Info

Publication number: CN109803286B
Application number: CN201711146316.1A
Authority: CN
Inventors: 王化磊; 黄甦
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2022-04-29
Anticipated expiration: 2037-11-17
Also published as: CN109803286A

Abstract

The present invention provides a processing method, device and terminal after beam failure. The method includes: when a beam failure is monitored by monitoring a reference signal set in a resource space quasi-site site in a control resource set configured by the network, sending a beam recovery request signal to the network; The network response is detected from the resources in the control resource set of the beam failure process; when the network response is detected, the monitoring continues on some or all of the time-frequency resources of the control resource set in the original network configuration. The present invention can realize the processing after the beam restoration request signal is sent and the network response is detected.

Description

Processing method and device after beam failure and terminal

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a terminal for processing a failed beam.

Background

NR (New Radio, New air interface) introduces a Beam Failure (Beam Failure) process, that is, a terminal initiatively initializes Beam recovery, and its basic principle is: the terminal monitors Reference signals of a Demodulation Reference Signal (DMRS) space QCL (Quasi-co-located) of a Physical Downlink Control Channel (PDCCH), and if a PDCCH BLER (Block Error Rate) calculated based on the Reference signals is higher than a threshold and the terminal finds a new candidate beam based on a Reference Signal configured to find the new candidate beam, the terminal sends a beam recovery request Signal to the network side, and then the terminal detects a network response. If the terminal detects the network response, the beam recovery is considered to be successful, and the beam recovery process is finished; if the terminal does not detect the network response, the terminal continues to send the beam recovery request signal until the maximum transmission times are reached or the time is out or the network response is successfully detected.

Currently, it is known to configure a dedicated CORESET (Control Resource Set) for the network response for the terminal to detect the network response, but the CORESET exists only in the current detection window, and the terminal considers that the CORESET(s) has a spatial QCL relationship with the reference signal of the newly recommended candidate beam, i.e. the terminal receives the CORESET by using the receiving beam receiving the newly recommended candidate beam.

Currently, there is no specific scheme for the behavior after the terminal when the terminal successfully detects a network response after transmitting a beam recovery request signal after a beam failure.

Disclosure of Invention

The processing method, the processing device and the processing terminal after the beam failure can realize the processing after the beam recovery request signal is sent and the network response is detected.

In a first aspect, the present invention provides a method for processing a failed beam, including:

when the wave beam is monitored to fail by monitoring a reference signal set of a resource space quasi-co-site in a control resource set configured by a network, sending a wave beam recovery request signal to the network;

detecting network responses through resources in a control resource set which is configured by a detection network and is specially used for a beam failure process;

and when the network response is detected, continuing to monitor the time-frequency resources of part or all of the control resource sets configured by the original network.

Optionally, the continuing to monitor the time-frequency resources of the originally configured partial or all control resource sets of the network includes: and selecting the time-frequency resources of a part or all of the originally configured control resource sets of the network for monitoring according to the number of new candidate beams recommended by the terminal in the beam recovery request signal.

Optionally, the selecting, according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, a time-frequency resource of a partial or all control resource sets originally configured by the network for monitoring includes:

when the terminal recommends only one new candidate beam in the beam recovery request signal, the terminal selects to continue monitoring only on the time-frequency resource of the control resource set with the minimum period in the control resource set originally configured by the network, or selects to continue monitoring only on the time-frequency resource of the control resource set agreed in the control resource set originally configured, or selects to continue monitoring on the time-frequency resources of all the control resource sets originally configured, and the control resource set continuously monitored and the reference signal of the newly recommended candidate beam are considered to have a spatial quasi-co-site relationship.

Optionally, the considering that the control resource set to be continuously monitored has a spatial quasi-co-site relationship with the reference signal of the newly recommended candidate beam includes: and using the receiving beam for receiving the new recommended candidate beam to receive the control resource set to be continuously monitored.

when the terminal recommends a plurality of new candidate beams in the beam recovery request signal, the selection is based on network configuration or monitoring is carried out according to the principle that a control resource set with a smaller continuous monitoring period and a reference signal with a higher reference signal receiving power value in the newly recommended candidate beams have a space quasi-co-site relationship.

In a second aspect, the present invention provides a processing apparatus after a beam failure, including:

a transmitting unit, configured to transmit a beam recovery request signal to a network when a beam failure is monitored by monitoring a reference signal set of a resource space quasi-co-site in a control resource set configured by the network;

the detection unit is used for detecting network response through detecting resources in a control resource set which is configured by a network and is special for the beam failure process in a detection window;

and the monitoring unit is used for continuously monitoring the time-frequency resources of part or all of the control resource sets configured by the original network when the network response is detected.

Optionally, the monitoring unit is configured to select, according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, a time-frequency resource of a partial or all control resource sets originally configured by the network to perform monitoring.

Optionally, the monitoring unit is configured to, when the terminal recommends only one new candidate beam in the beam recovery request signal, select to continue monitoring only on the time-frequency resource of the control resource set with the minimum period in the control resource set originally configured by the network, or select to continue monitoring only on the time-frequency resource of the control resource set agreed in the control resource set originally configured, or select to continue monitoring on the time-frequency resources of all the control resource sets originally configured, and consider that the control resource set continuing to monitor and the reference signal of the newly recommended candidate beam have a spatial quasi-co-site relationship.

Optionally, the monitoring unit is configured to, when the terminal recommends a plurality of new candidate beams in the beam recovery request signal, select to perform monitoring based on network configuration or according to a principle that a control resource set with a smaller period for continuous monitoring and a reference signal with a higher reference signal received power value in the newly recommended candidate beams have a spatial quasi co-site relationship.

In a third aspect, the present invention provides a terminal, where the terminal includes the processing apparatus after the beam failure.

According to the processing method, the device and the terminal after the beam failure, when the beam failure is monitored by monitoring the reference signal set of the resource space quasi-co-site in the control resource set configured by the network, the beam recovery request signal is sent to the network, and when the network response is detected by detecting the resources in the control resource set which is specially used for the beam failure process and configured by the network in the detection window, the time-frequency resources of the originally configured part or all of the control resource set of the network are selected for monitoring according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, so that the processing after the beam recovery request signal is sent and the network response is detected by the terminal can be realized.

Drawings

FIG. 1 is a flow chart of a processing method after a beam failure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a processing device after a beam failure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment of the present invention, the Beam Failure Procedure (Beam Failure Procedure) is only an exemplary description indicating an operation Procedure of the terminal after the Beam Failure, but is not limited thereto, and may also be referred to as a connection reconfiguration Procedure (Link reconfiguration Procedure), or other similar descriptions indicating an operation Procedure of the terminal after the Beam Failure. The beam recovery request signal is only an exemplary description for requesting beam recovery, which indicates that the terminal transmits to the network, but the beam recovery request signal is not limited to this, and may be other similar descriptions for requesting beam recovery, which indicates that the terminal transmits to the network.

An embodiment of the present invention provides a processing method after a beam failure, as shown in fig. 1, the method includes:

and S21, when the terminal monitors that the beam fails by monitoring the reference signal set of the resource space quasi-co-site in the control resource set configured by the network, the terminal sends a beam recovery request signal to the network.

And S22, the terminal detects the network response by detecting the resources in the control resource set which is configured by the network and is special for the beam failure process in the detection window.

And S23, when the terminal detects the network response, the terminal continues to monitor the time-frequency resources of the partial or all control resource sets configured by the original network.

Optionally, when the terminal does not detect the network response within the detection window, the terminal returns to execute the steps S21, S22.

Specifically, the terminal selects a time-frequency resource of a partial or all control resource set originally configured by the network for monitoring according to the number of new candidate beams recommended in the beam recovery request signal.

Alternatively, when the terminal recommends only one new candidate beam in the beam recovery request signal, the terminal may perform processing in one of the following three ways:

mode 1: the terminal only continues monitoring on the time-frequency resource of the CORESET with the minimum period in the originally configured CORESET(s); the terminal considers that the CORESET(s) continuously monitored has a spatial QCL relationship with the reference signal of the newly recommended candidate beam, namely the terminal receives the CORESET needing to be continuously monitored by using the receiving beam for receiving the newly recommended candidate beam;

mode 2: the terminal only continues monitoring on the time-frequency resource of the CORESET appointed in the originally configured CORESET(s); the terminal considers that the CORESET(s) continuously monitored has a spatial QCL relationship with the reference signal of the newly recommended candidate beam, namely the terminal receives the CORESET needing to be continuously monitored by using the receiving beam for receiving the newly recommended candidate beam;

mode 3: the terminal continuously monitors all originally configured time-frequency resources of CORESET(s); and the terminal considers that the CORESET(s) to be continuously monitored has a spatial QCL relationship with the reference signal of the newly recommended candidate beam, that is, the terminal receives the CORESET to be continuously monitored by using the receiving beam for receiving the newly recommended candidate beam.

Alternatively, when the terminal recommends a plurality of new candidate beams in the beam recovery request Signal, the terminal performs monitoring based on a network configuration or on a principle that a Reference Signal having a spatial QCL relationship with a smaller CORESET and a higher RSRP (Reference Signal Receiving Power) value in the newly recommended candidate beams in a period for continuing monitoring.

According to the processing method after the beam failure provided by the embodiment of the invention, when the beam failure is monitored by monitoring the reference signal set of the resource space quasi-co-site in the control resource set configured by the network, the beam recovery request signal is sent to the network, and when the network response is detected by detecting the resources in the control resource set which is configured by the network and is specially used for the beam failure process in the detection window, the time-frequency resources of the originally configured part or all control resource sets of the network are selected to be monitored according to the number of the new candidate beams recommended by the terminal in the beam recovery request signal, so that the processing of the terminal after the beam recovery request signal is sent and the network response is detected can be realized.

The following describes the processing method after the beam failure according to the present invention in detail with reference to specific embodiments.

Example 1

If the terminal recommends only one new candidate beam in the beam recovery request signal, the terminal monitors only the CORESET in the minimum period and considers that the reference signal of the newly recommended beam has a spatial QCL relationship with the reference signal of the newly recommended beam.

If the originally configured CORESET is sorted from small to large according to the period as follows:

numbering
		1	CORESET a
2	CORESET b
		3	CORESET c

The terminal only monitors the time-frequency resource corresponding to the CORESET a.

Example 2

If the terminal recommends a plurality of new candidate beams in the beam recovery request signal, and the number of the recommended new candidate beams is less than the originally configured coreset(s).

numbering
		1	CORESET a
2	CORESET b
		3	CORESET c

Suppose that the newly recommended candidate beams are ranked from large to small according to RSRP values as follows:

numbering
		1	Wave beam a
2	Wave beam b

The terminal may monitor on CORESET a, b and consider that it has a spatial QCL relationship with the reference signal of the newly recommended beam a; monitoring may be performed on CORESET c and considered to have a spatial QCL relationship with the reference signal of the newly recommended beam b.

Example 3

If the terminal recommends a number of new candidate beams in the beam recovery request signal, and the number of recommended new candidate beams is equal to the number(s) of CORESET originally configured.

numbering
		1	CORESET a
2	CORESET b
		3	CORESET c

numbering
		1	Wave beam a
2	Wave beam b
		3	Wave beam c

The terminal may monitor on CORESET a and consider that it has a spatial QCL relationship with the reference signal of the newly recommended beam a; monitoring can be performed on CORESET b and considered to have a spatial QCL relationship with the reference signal of the newly recommended beam b; monitoring may be performed on CORESET c and considered to have a spatial QCL relationship with the reference signal of the newly recommended beam c.

Example 4

If the terminal recommends a plurality of new candidate beams in the beam recovery request signal, and the number of the recommended new candidate beams is larger than the originally configured CORESET(s) number.

numbering
		1	CORESET a
2	CORESET b

numbering
		1	Wave beam a
2	Wave beam b
		3	Wave beam c

The terminal may monitor on CORESET a and consider that it has a spatial QCL relationship with the reference signal of the newly recommended beam a; monitoring may be performed on CORESET b and considered to have a spatial QCL relationship with the reference signal of the newly recommended beam b.

An embodiment of the present invention further provides a processing apparatus after a beam failure, as shown in fig. 2, the apparatus includes:

a transmitting unit 11, configured to transmit a beam recovery request signal to a network when a beam failure is monitored by monitoring a reference signal set quasi co-sited with a resource space in a control resource set configured by the network;

a detecting unit 12, configured to detect a network response by detecting a resource in a control resource set dedicated to a beam failure procedure configured by a network within a detection window;

and a monitoring unit 13, configured to continue monitoring on the time-frequency resources of a part or all of the control resource sets originally configured by the network when the network response is detected.

According to the processing device after beam failure provided by the embodiment of the invention, when the beam failure is monitored by monitoring the reference signal set of the resource space quasi-co-site in the control resource set configured by the network, the beam recovery request signal is sent to the network, and when the network response is detected by detecting the resources in the control resource set which is configured by the network and is specially used for the beam failure process in the detection window, the time-frequency resources of the originally configured part or all control resource sets of the network are selected for monitoring according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, so that the processing of the terminal after the beam recovery request signal is sent and the network response is detected can be realized.

Optionally, the monitoring unit 13 is configured to select, according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, a time-frequency resource of a partial or all control resource sets originally configured by the network to perform monitoring.

Optionally, the monitoring unit 13 is configured to, when the terminal recommends only one new candidate beam in the beam recovery request signal, select to continue monitoring only on the time-frequency resource of the control resource set with the minimum period in the control resource set originally configured by the network, or select to continue monitoring only on the time-frequency resource of the control resource set agreed in the control resource set originally configured, or select to continue monitoring on the time-frequency resources of all control resource sets originally configured, and consider that the control resource set continuously monitored and the reference signal of the newly recommended candidate beam have a spatial quasi-co-site relationship.

Optionally, the monitoring unit 13 is configured to, when the terminal recommends a plurality of new candidate beams in the beam recovery request signal, select to perform monitoring based on network configuration or according to a principle that a control resource set with a smaller period for continuous monitoring and a reference signal with a higher reference signal received power value in the newly recommended candidate beams have a spatial quasi co-site relationship.

The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

The embodiment of the invention also provides a terminal which comprises the processing device after the beam failure.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A processing method after beam failure, characterized in that, comprising:

When the beam failure is monitored by monitoring the reference signal set in the resource space quasi-site site in the control resource set configured by the network, a beam recovery request signal is sent to the network;

Detect network responses within the detection window by detecting network-configured resources in the set of control resources dedicated to the beam failure process;

When a network response is detected, monitoring continues on some or all of the time-frequency resources of the original network configuration control resource set.

2 . The method according to claim 1 , wherein the continuing to monitor part or all of the time-frequency resources of the control resource set originally configured by the network comprises: according to the new information recommended by the terminal in the beam recovery request signal. 3 . The number of candidate beams is selected to be monitored on some or all of the time-frequency resources of the control resource set originally configured by the network.

3 . The method according to claim 2 , wherein, according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, the time-frequency of part or all of the control resource set previously configured in the network is selected. 4 . Monitoring on resources includes:

When the terminal only recommends a new candidate beam in the beam recovery request signal, it selects to continue monitoring only on the time-frequency resources of the control resource set with the smallest period in the control resource set originally configured by the network, or selects to only select the originally configured control resource set to continue monitoring. Continue monitoring on the time-frequency resources of the agreed-upon control resource set in the resource set, or choose to continue monitoring on the time-frequency resources of all previously configured control resource sets, and consider that the continuously monitored control resource set is a reference to the newly recommended candidate beam The signals have a spatial quasi-co-site relationship.

4 . The method according to claim 3 , wherein the deeming that the reference signal of the continuously monitored control resource set and the newly recommended candidate beam have a spatial quasi-co-site relationship comprises: using a method for receiving the newly recommended candidate beam. 5 . Receive beams to receive the set of control resources that need to continue to be monitored.

5 . The method according to claim 2 , wherein, according to the number of new candidate beams recommended by the terminal in the beam recovery request signal, the time-frequency of some or all of the control resource sets previously configured in the network is selected. 6 . Monitoring on resources includes:

When the terminal recommends multiple new candidate beams in the beam recovery request signal, it selects the control resource set based on the network configuration or the smaller the period of continuous monitoring and the reference signal with the higher reference signal received power value in the newly recommended candidate beam. It is monitored according to the principle of space quasi-co-site relationship.

6. A processing device after beam failure, characterized in that, comprising:

a sending unit, configured to send a beam recovery request signal to the network when the beam failure is monitored by monitoring the reference signal set of the resource space quasi-site site in the control resource set configured by the network;

a detection unit, configured to detect a network response within a detection window by detecting a network response in a set of control resources dedicated to the beam failure process configured by the detection network;

The monitoring unit is configured to continue monitoring on some or all of the time-frequency resources of the original network configuration control resource set when a network response is detected.

7 . The apparatus according to claim 6 , wherein the monitoring unit is configured to select some or all of the control units previously configured in the network according to the number of new candidate beams recommended by the terminal in the beam recovery request signal. 8 . Monitoring is performed on the time-frequency resources of the resource set.

8 . The apparatus according to claim 7 , wherein the monitoring unit is configured to, when the terminal only recommends a new candidate beam in the beam recovery request signal, select only a control resource set that is originally configured by the network. 9 . Continue monitoring on the time-frequency resources of the control resource set with the minimum period, or choose to continue monitoring only on the time-frequency resources of the control resource set agreed in the previously configured control resource set, or choose to continue monitoring on the time-frequency resources of all previously configured control resource sets. Continue monitoring on frequency resources, and consider that the control resource set that continues to monitor and the reference signal of the newly recommended candidate beam have a spatial quasi-co-site relationship.

9 . The apparatus according to claim 8 , wherein the deeming that the control resource set to be continuously monitored and the reference signal of the newly recommended candidate beam have a spatial quasi-co-site relationship comprises: using a method for receiving the newly recommended candidate beam. 10 . Receive beams to receive the set of control resources that need to continue to be monitored.

10 . The apparatus according to claim 7 , wherein the monitoring unit is configured to, when the terminal recommends a plurality of new candidate beams in the beam recovery request signal, select the beams based on network configuration or according to the period of continuous monitoring. 11 . A small control resource set and a reference signal with a higher received power value of the reference signal in the newly recommended candidate beams are monitored according to the principle of a spatial quasi-co-site relationship.

11. A terminal, characterized in that the terminal comprises the processing apparatus after beam failure according to any one of claims 6 to 10.