CN111867071B - Method and equipment for beam failure indication and recovery based on data scheduling - Google Patents
Method and equipment for beam failure indication and recovery based on data scheduling Download PDFInfo
- Publication number
- CN111867071B CN111867071B CN201910364309.1A CN201910364309A CN111867071B CN 111867071 B CN111867071 B CN 111867071B CN 201910364309 A CN201910364309 A CN 201910364309A CN 111867071 B CN111867071 B CN 111867071B
- Authority
- CN
- China
- Prior art keywords
- information
- downlink control
- control channel
- beam failure
- beams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 239000000969 carrier Substances 0.000 claims abstract description 52
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
Abstract
The application discloses a method and equipment for beam failure indication and recovery based on data scheduling, wherein the method is used for terminal equipment and comprises the following steps: at least one beam failure is detected, and first information is reported as a beam failure indication; receiving a downlink control channel, wherein the downlink control channel is used for indicating uplink time-frequency resources when the wave beam fails; and the terminal uses the uplink time-frequency resource to send third information, wherein the third information comprises beam failure information of a plurality of carriers and or a plurality of beams. The method is used for network equipment and comprises the following steps: receiving first information, and confirming that a beam failure event occurs; transmitting a downlink control channel, wherein the downlink control channel is used for indicating uplink time-frequency resources when the wave beam fails; and receiving third information on the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and or a plurality of beams.
Description
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a method and apparatus for beam failure indication and recovery of a new air interface.
Background
In high-frequency millimeter wave communication, the angle coverage of a control channel is limited, so that the coverage of the control channel is easy to generate a cavity, the reliable reception of the control channel cannot be ensured, and the beam failure occurs. NR thus introduces a fast and reliable beam failure detection and recovery procedure enabling network devices to quickly recover transmissions from beam failures. The main process is as follows: the quality of each downlink control channel beam received by the terminal is lower than a specified threshold, so that the terminal equipment cannot effectively receive the control information sent by the PDCCH. Assuming that the network device has M beams for transmitting the downlink control channel, dedicated reference signals are configured for each beam, and the terminal device determines whether the downlink control channel meets the requirement of receiving quality by measuring the reference signals of the M beams. If the channel quality of all M beams is below the established threshold, the terminal device will consider a beam failure event to occur. After the terminal equipment measures the beam failure event, the terminal equipment reports the beam failure event to the network equipment and reports new candidate beam information. The terminal device only reports a new candidate beam to the network device, if a plurality of beam quality in the measuring process reaches the threshold value requirement, the terminal device can select one of the beams to report to the network device according to the judgment of the terminal device, for example, the strongest beam is reported to the network device. The uplink physical channels used for reporting beam failures and new candidate beams require high reliability and robustness. In the existing standard, each PRACH corresponds to one downlink beam direction (each downlink beam direction corresponds to beams in different transmission directions for transmitting broadcast information), and the PRACH selected by the terminal device corresponds to the most appropriate downlink beam direction beam transmission direction. The network device may obtain candidate beam information reported by the terminal device by detecting the PRACH.
The existing standard supports PRACH channel to send uplink beam failure indication, and uplink beam failure indication information is sent on the optimal candidate beam, so that the carried information is not enough, and the problems of multi-beam failure indication and recovery cannot be solved.
Disclosure of Invention
The invention provides a method and equipment for beam failure indication and recovery based on data scheduling, which solve the problem that beam failure indication and recovery cannot be realized under the condition of multiple beams.
In one aspect, an embodiment of the present application proposes a method for beam failure indication and recovery based on data scheduling, for a terminal device, including the following steps:
at least one beam failure is detected, and first information is reported as a beam failure indication;
receiving downlink control channel information, wherein the downlink control channel information is used for indicating uplink time-frequency resources when a wave beam fails;
and the terminal uses the uplink time-frequency resource to send third information, wherein the third information comprises beam failure information of a plurality of carriers and or a plurality of beams.
Further, the downlink control channel includes second information; the second information is used for indicating a special downlink control channel or a special downlink search space.
In any one of the method embodiments for a terminal device, the downlink control channel may be scrambled with second information, and when the downlink control channel is received, the terminal device uses the second information to descramble the downlink control channel.
Further, the third information further includes optimal beam information of the plurality of carriers; and or, the third information includes RSRP or SINR information of at least 1 beam.
In an optimized embodiment of the present application, the method may further comprise the steps of: and monitoring the special downlink time-frequency resource, and confirming that the beam failure information is received.
In another aspect, an embodiment of the present application proposes a method for beam failure indication and recovery based on data scheduling, for a network device, including the following steps: receiving first information, and confirming that a beam failure event occurs; transmitting downlink control channel information, wherein the downlink control channel information is used for indicating uplink time-frequency resources when the wave beam fails; and receiving third information on the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and or a plurality of beams.
Further, the downlink control channel includes second information; the second information is used for a dedicated downlink control channel or a dedicated downlink search space.
In any one of the embodiments of the present application for a network device, the network device uses the second information to scramble the downlink control channel.
Further, the third information further includes optimal beam information of the plurality of carriers; and or, the third information further includes RSRP or SINR information of at least 1 beam.
In any one of the method embodiments for a network device of the present application, the method further includes the following steps: and selecting an optimal wave beam to transmit downlink control information through a special downlink time frequency resource.
The embodiment of the application also provides the terminal equipment and the network equipment used for any one embodiment of the application.
Generally, according to the technical scheme, the terminal equipment reports the beam failure indication, the network equipment issues the uplink scheduling of the beam failure, the terminal equipment sends the recovery information of the multiple beams of the multiple carriers according to the uplink scheduling, the terminal equipment can detect the candidate beams and judge that the network equipment successfully receives the candidate beams, and the beam failure indication and recovery processes are realized through the steps.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:
when the terminal is configured with a plurality of downlink carriers and the plurality of carriers are activated, if the plurality of carriers have the failure of the wave beam, the beneficial effect of successfully recovering the wave beam can be obtained; because more information needs to be sent when the beam failure recovery is performed under the conditions of multiple beams and multiple carriers, the problem to be solved is solved urgently.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a flowchart of a beam failure resource indication method according to an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of the method of the present invention for a terminal device;
FIG. 3 is a flow chart of an embodiment of the method of the present invention for a network device;
fig. 4 is a flow chart of an indication and recovery method for implementing multi-beam failure in accordance with the present invention;
fig. 5 is a flow chart of a method for implementing multi-carrier beam failure indication and recovery according to the present invention;
fig. 6 is a flow chart of a method of implementing multi-carrier, multi-beam failure indication and recovery in accordance with the present invention.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a flowchart of a beam failure resource indicating method according to an embodiment of the present invention.
The main idea of the present invention is that,
step 11, the terminal detects beam failure and reports beam failure indication;
step 12, the network equipment (base station) sends the downlink control information scrambled by the beam failure indication, and the scheduling terminal sends the information related to the uplink beam failure;
step 13, the terminal sends information related to uplink beam failure, wherein the information comprises beam failure indication of each beam failure carrier wave, RSRP/SINR of a plurality of candidate beams and the like;
step 14, the network equipment activates the special control channel for the beam failure of each carrier wave, and sends downlink control information by using the optimal beam;
and 15, the terminal receives the downlink control information and confirms that the candidate wave beam is correctly received by the network equipment.
The method and the device effectively improve the information quantity of reporting the uplink beam failure and ensure the reporting efficiency of the beam failure of the carrier aggregation of different carriers.
Fig. 2 is a flow chart of an embodiment of the method of the present invention for a terminal device.
The flow chart of the beam failure resource indication method according to the embodiment of the invention comprises the following operation steps of the terminal:
step 21, the terminal equipment detects at least one beam failure and reports first information as a beam failure indication;
for example, when carrier aggregation, the terminal detects n aggregated cell failures. The terminal transmits first information (BFI) in an uplink control channel, wherein the first information is used for indicating that the terminal has beam failure, and the beam failure comprises a plurality of main carriers and auxiliary carriers. The first information is at least 1 bit, and the situation that the beam fails is marked, when the first information is 1 bit, the beam failure is not marked by 0, and the beam failure is marked by 1. The first information may multiplex a design mechanism of an uplink data Scheduling Request (SR).
Step 22, the terminal equipment receives downlink control channel information, wherein the downlink control channel is used for indicating uplink time-frequency resources when the beam fails;
for example, the downlink control channel includes second information indicating that scheduling information transmitted to the terminal is used to schedule the terminal to transmit beam failure indication and associated candidate beam information.
The downlink control channel may be scrambled with the second information (e.g., BFI-RNTI) to enable the terminal device to distinguish whether the downlink control channel is for uplink data scheduling or transmit beam failure information. And when receiving the downlink control channel, the terminal equipment uses the second information to descramble the downlink control channel to obtain uplink scheduling information, and determines that the uplink scheduling information is information for transmitting beam failure.
In an optimized embodiment, the downlink control channel is further used for indicating a dedicated downlink control channel when the beam fails, or a dedicated downlink search space when the beam fails.
Step 23, the terminal uses the uplink time-frequency resource to send third information, wherein the third information comprises beam failure information of a plurality of carriers and/or a plurality of beams;
further, the third information further includes optimal beam information of the plurality of carriers; and or, the third information including RSRP or SINR information of at least 1 beam; these beams may be used as candidate beams.
For example, the third information includes beam failure information of a plurality of carriers, optimal beam information of a plurality of carriers;
for another example, the third information includes beam failure information of a plurality of carriers, direction information of m beams of the plurality of carriers, and RSRP/SINR information of the m beams.
And step 24, the terminal equipment monitors the special downlink time-frequency resource and confirms that the beam failure information is received. For example, the terminal device monitors downlink control information of the primary carrier and the secondary carrier, and confirms that the beam fails and that the candidate beam is correctly received by the network device.
Fig. 3 is a flow chart of an embodiment of the method of the present invention for a network device.
The embodiment of the application provides a beam failure indication and recovery method based on data scheduling, which is used for network equipment. The method comprises the operation steps of the network equipment:
step 31, the network equipment receives the first information and confirms that a beam failure event occurs;
for example, when carrier aggregation is performed, the network device detects that the first information sent by the terminal is a beam failure indication "BFI" in a preset format, and confirms that a beam failure occurs.
Step 32, the network device sends a downlink control channel, wherein the downlink control channel is used for indicating uplink time-frequency resources when the beam fails;
in step 32, corresponding to step 22, further, the downlink control channel includes second information. And the downlink control channel identified by the second information is sent to the terminal, and the second information indicates that the scheduling information sent to the terminal is used for scheduling the terminal to send the beam failure indication and the related candidate beam information.
Preferably, in any one of the embodiments of the present application, the network device uses the second information to scramble the downlink control channel. For example, the downlink control channel is scrambled with a BFI-RNTI.
In an optimized embodiment of the present application, the downlink control channel is further used to indicate a dedicated downlink control channel or a dedicated downlink search space.
Step 33, the network device receives third information on the uplink time-frequency resource, where the third information includes beam failure information of multiple carriers and/or multiple beams;
in step 33, corresponding to step 23, third information transmitted by the terminal is received. Further, the third information further includes optimal beam information of the plurality of carriers; and or, the third information further includes RSRP or SINR information of at least 1 beam.
The third information indicates candidate beam information or no candidate beam information. For example, the third information includes beam failure information of a plurality of carriers, optimal beam information of a plurality of carriers; for another example, the third information includes beam failure information of a plurality of carriers, direction information of m beams of the plurality of carriers, and RSRP/SINR information of the m beams.
And step 34, the network equipment selects an optimal wave beam and sends downlink control information through the special downlink time-frequency resource.
In step 34, the primary carrier of the network device activates the beam failure dedicated control channel of the secondary carrier, and sends downlink control information by using the optimal candidate beam.
Fig. 4 is a flow chart of an indication and recovery method for implementing multi-beam failure in the method of the present invention.
In this embodiment, reporting of single carrier beam failure allows reporting of M beam failures and RSRP and/or SINR information corresponding to the M beams. M is an integer greater than zero.
Step 41, the terminal reports the first information, which indicates that there is a beam failure.
The first information indicates that a beam failure condition exists, and accordingly, the base station detects the first information and determines that a beam failure event occurs.
Step 42, the base station transmits downlink control information scrambled by second information, where the second information is used to identify downlink control information used when the beam fails. And the terminal receives the downlink control channel scrambled by the second information and finds the position of the corresponding time-frequency resource.
And 43, reporting third information by the terminal, wherein the third information comprises K wave beams failed and RSRP and/or SINR information corresponding to the M wave beams.
Correspondingly, the base station receives the third information, selects the optimal beam and sends the downlink control information on a downlink control channel (or a dedicated search space COSET_BFR) which is specially used for beam failure.
Step 44, the terminal searches the beam failure dedicated downlink control channel (or dedicated search space) on the M beams, and receives downlink control information on the M (m=1, …, M) th beam, so as to obtain the optimal beam of the network device as M.
Fig. 5 is a flow chart of a method for implementing multi-carrier beam failure indication and recovery according to the present invention.
In this embodiment, there is a multi-carrier beam failure, and the third information reported by the terminal includes N failed carriers, and at least one candidate beam of each carrier, that is, at least N candidate beams corresponding to the N failed carriers.
And 51, reporting first information by the terminal, wherein the first information indicates that the beam fails.
The first information indicates that a beam failure condition exists for a plurality of carriers. Correspondingly, the base station detects the first information and determines beam failure events on the plurality of carriers.
Step 52, the base station transmits downlink control information scrambled by second information, wherein the second information is the downlink control information used for identifying the failure of the wave beam;
correspondingly, the terminal receives the downlink control channel scrambled by the second information and finds the position of the corresponding time-frequency resource. Specifically, the terminal descrambles the downlink control information scrambled by the second information to obtain an uplink time-frequency resource.
And step 53, the terminal sends third information on the uplink time-frequency resource.
The terminal reports third information, for example, the third information includes beam failure information of N carriers (CC index, carrier indication), candidate beam information of N carriers or no candidate beam information, where N1 carriers have candidate beams, the nth carrier reports information (beam indication) of Mn candidate beams (n=1, …, N1) and RSRP and/or SINR information corresponding to the Mn candidate beams, and the N-N1 carriers report information of no candidate beams.
Step 54, the base station receives the third information, selects the optimal beam in the N1 carriers, and sends the downlink control information on the downlink control channel (or the dedicated search space) dedicated to the beam failure; correspondingly, the terminal fails to search the beam on m=Σmn beams for a dedicated downlink control channel (or a dedicated search space corset_bfr), and receives downlink control information on the mth beam, so as to obtain an optimal beam of the network device as M (m=1, …, M).
Fig. 6 is a flow chart of a method of implementing multi-carrier, multi-beam failure indication and recovery in accordance with the present invention.
In this embodiment, the multi-carrier beam fails, and the terminal reports third information including candidate beams of N carriers and RSRP/SINR information of candidate beams on N carriers, where each carrier has M candidate beams
Step 61, the terminal reports the first information, indicating that there is a beam failure.
The first information indicates that a beam failure condition exists for a plurality of carriers. Correspondingly, the base station detects the first information and determines beam failure events on the plurality of carriers.
Step 62, the base station transmits downlink control information scrambled by second information, wherein the second information is the downlink control information used for identifying the failure of the wave beam;
and the terminal receives the downlink control channel scrambled by the second information, descrambles the downlink control information scrambled by the second information, and obtains the position of the uplink time-frequency resource.
Step 63, the terminal reports third information on the uplink time-frequency resource, where the third information includes N carriers having beam failure events, where N1 carriers report candidate beam information, where N (n=1, …, N1) th carrier reports 1 candidate beam, and N-N1 carriers have no candidate beam.
Correspondingly, the base station receives the third information, and sends downlink control information through the special search space by using the candidate wave beams. Since only one candidate beam is reported on each carrier, the base station can only use this one candidate beam as the optimal beam, which is selected by the terminal device.
Step 64, the terminal searches the special search space corset_bfr for beam failure on the candidate beams corresponding to the N1 carriers, receives the downlink control information, and confirms that the base station receives the optimal beam information.
The application also provides a terminal device, which is used for reporting first information after detecting beam failure in a single carrier and/or multi-carrier system, and indicating that the beam failure exists; the downlink control channel indicated by the second information is received, and the position of the corresponding time-frequency resource is found; reporting third information; and searching a special search space COSET_BFR for beam failure on M beams, and receiving downlink control information on an mth beam to obtain an optimal beam of the network equipment as M.
The first information may multiplex a design mechanism of an uplink data Scheduling Request (SR). The first information is at least 1 bit, and the situation that the beam fails is marked, when the first information is 1 bit, the beam failure is not marked by 0, and the beam failure is marked by 1.
The second information scrambling is used to distinguish between uplink data scheduling and transmit beam failure information.
The second information is used for scrambling a downlink control channel, and identifying that the downlink control channel is a special downlink control channel used when the beam fails; or, the second information is used for indicating a dedicated downlink control channel; or the second information is for indicating a dedicated search space.
The third information includes candidate beam information for beam failure or information including no candidate beam. For example, the third information includes 1 candidate beam of N carriers, or Mn candidate beams of N carriers and RSRP/BLER information of Mn beams.
The terminal equipment is further configured to search a beam failure dedicated search space corset_bfr on the optimal candidate beam or on the M candidate beams; the terminal device searches on the optimal candidate beam, and confirms that the optimal beam is received by the network device. Or the method is used for searching M wave beams and receiving downlink control information on the mth wave beam, and the optimal wave beam of the network equipment is obtained as the mth wave beam.
The application also proposes a network device, which is used for receiving the first information and confirming that a beam failure event occurs; transmitting a downlink control channel, wherein the downlink control channel is used for indicating uplink time-frequency resources when the wave beam fails; and receiving third information on the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and or a plurality of beams. Further, the downlink control channel is further configured to indicate a dedicated downlink time-frequency resource when the beam fails. Further, the downlink control channel includes second information; the second information is used for indicating the special downlink time-frequency resource; the special downlink time frequency resource is a special downlink control channel or a special downlink search space.
Preferably, the network device is further configured to scramble the downlink control channel using the second information.
Preferably, the network device is further configured to select an optimal beam to send downlink control information through the dedicated downlink time-frequency resource.
The embodiment of the application also provides a mobile communication system, which comprises the network equipment according to any one embodiment of the application and/or the terminal equipment according to any one embodiment of the application.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (8)
1. A method for beam failure indication and recovery based on data scheduling for a terminal device, comprising the steps of:
at least one beam failure is detected, and first information is reported as a beam failure indication;
the terminal equipment uses second information to descramble a downlink control channel and receives downlink control channel information, wherein the second information is used for indicating a special downlink time-frequency resource, the special downlink time-frequency resource is a special downlink control channel or a special downlink search space, and the downlink control channel information is used for indicating an uplink time-frequency resource when a wave beam fails;
the terminal uses the uplink time-frequency resource to send third information, wherein the third information comprises a plurality of carriers and or beam failure information of a plurality of beams, and M candidate beams;
monitoring the special downlink time-frequency resource, and determining that the candidate wave beam is correctly received by the network equipment; and searching the special downlink control channel or the special search space of the beam failure on the M beams, and receiving the downlink control information on the mth beam to obtain the optimal beam of the network equipment as M, m=1, … and M.
2. The method of claim 1, wherein the third information further comprises optimal beam information for a plurality of carriers, the beams serving as candidate beams.
3. The method of claim 1, wherein the third information further comprises RSRP or SINR information for at least 1 beam, which is used as a candidate beam.
4. A method for beam failure indication and recovery based on data scheduling for a network device, comprising the steps of:
receiving first information, and confirming that a beam failure event occurs;
transmitting downlink control channel information scrambled by using second information, wherein the second information is used for indicating a special downlink time-frequency resource, the special downlink time-frequency resource is a special downlink control channel or a special downlink search space, and the downlink control channel information is used for indicating an uplink time-frequency resource when a wave beam fails;
receiving third information on the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and/or a plurality of beams, and M candidate beams;
and selecting an optimal wave beam to send downlink control information through the special downlink time frequency resource.
5. The method of claim 4, wherein the third information further comprises optimal beam information for a plurality of carriers, the beams serving as candidate beams.
6. The method of claim 4, wherein the third information further comprises RSRP or SINR information for at least 1 beam, which is used as a candidate beam.
7. A terminal device, configured to perform the method of any one of claims 1 to 3, wherein the terminal device detects at least one beam failure, and reports first information as a beam failure indication; descrambling and receiving downlink control channel information by using second information, wherein the downlink control channel information is used for indicating uplink time-frequency resources when the beam fails, and the second information is also used for indicating a special downlink control channel or a special downlink search space when the beam fails; transmitting third information by using the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and/or a plurality of beams and also comprises candidate beams; and monitoring the special downlink time frequency resource to determine that the candidate wave beam is correctly received by the network equipment.
8. A network device, configured to perform the method of any one of claims 4 to 6, wherein the network device receives first information to confirm that a beam failure event occurs; transmitting downlink control channel information scrambled by using second information, wherein the downlink control channel information is used for indicating uplink time-frequency resources when the beam fails, and the second information is also used for indicating a special downlink control channel or a special downlink search space when the beam fails; receiving third information on the uplink time-frequency resource, wherein the third information comprises beam failure information of a plurality of carriers and/or a plurality of beams and candidate beams; and selecting an optimal wave beam to transmit downlink control information through a special downlink time frequency resource.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364309.1A CN111867071B (en) | 2019-04-30 | 2019-04-30 | Method and equipment for beam failure indication and recovery based on data scheduling |
| PCT/CN2020/073695 WO2020220774A1 (en) | 2019-04-30 | 2020-01-22 | Beam failure indication and recovery method and device based on data scheduling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364309.1A CN111867071B (en) | 2019-04-30 | 2019-04-30 | Method and equipment for beam failure indication and recovery based on data scheduling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111867071A CN111867071A (en) | 2020-10-30 |
| CN111867071B true CN111867071B (en) | 2023-12-22 |
Family
ID=72966156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910364309.1A Active CN111867071B (en) | 2019-04-30 | 2019-04-30 | Method and equipment for beam failure indication and recovery based on data scheduling |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111867071B (en) |
| WO (1) | WO2020220774A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113727363B (en) * | 2021-07-23 | 2024-02-09 | 中国信息通信研究院 | Beam management method and device for intermediate node |
| CN117729632A (en) * | 2024-02-07 | 2024-03-19 | 荣耀终端有限公司 | Communication method, communication device and communication system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810928A (en) * | 2017-05-05 | 2018-11-13 | 华为技术有限公司 | A kind of method and the network equipment receiving wave beam recovery request |
| CN109246743A (en) * | 2017-04-28 | 2019-01-18 | 华为技术有限公司 | A kind of wave beam management method and terminal device, the network equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10194442B2 (en) * | 2017-02-10 | 2019-01-29 | Qualcomm Incorporated | Uplink resources for beam recovery |
-
2019
- 2019-04-30 CN CN201910364309.1A patent/CN111867071B/en active Active
-
2020
- 2020-01-22 WO PCT/CN2020/073695 patent/WO2020220774A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246743A (en) * | 2017-04-28 | 2019-01-18 | 华为技术有限公司 | A kind of wave beam management method and terminal device, the network equipment |
| CN108810928A (en) * | 2017-05-05 | 2018-11-13 | 华为技术有限公司 | A kind of method and the network equipment receiving wave beam recovery request |
Non-Patent Citations (3)
| Title |
|---|
| "54_R1-1904314 On Beam Management Enhancement";Intel Corporation;《3GPP tsg_ran\wg1_rl1》;20190330;第8-12页第4-5节，图6 * |
| "R1-1905638 Summary On SCell BFR and L1-SINR_v5".《3GPP tsg_ran\wg1_rl1》.2019, * |
| R1-1903977 "Beam failure recovery for SCell";Huawei等;《3GPP tsg_ran\wg1_rl1》;20190330;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020220774A1 (en) | 2020-11-05 |
| CN111867071A (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110521135B (en) | System and method for communication beam restoration | |
| US10499390B2 (en) | Base station, user equipment, transmission control method for base station and data transmission method for user equipment | |
| EP3720214B1 (en) | Method and apparatus for sending beam recovery information, and beam detection method and apparatus | |
| CN107948987B (en) | Communication method, device and system | |
| US9686050B2 (en) | Mitigating cross-link interference when using reconfigurable TDD | |
| WO2019161786A1 (en) | Default beam for uplink transmission after beam failure recovery | |
| EP2247052B1 (en) | Multicarrier communications system with provision for grouping pilot signals into scheduler groups associated with a transmission queue | |
| EP3131328A1 (en) | Method and apparatus for tracking uplink beam in beamforming-based cellular system | |
| TW201836289A (en) | Beam failure recovery methods and user equipment for multi-beam operation | |
| JP6644810B2 (en) | Cooperative random access based on common random access channel resources | |
| WO2018171762A1 (en) | Beam recovery processing method, beam recovery method, and device, system and medium | |
| KR101475051B1 (en) | Decoupled downlink and uplink | |
| CN106374984A (en) | Wave beam updating methods and equipment | |
| CN110022611B (en) | Method and device for realizing beam failure recovery and user equipment | |
| KR20160007062A (en) | Communicating method in a wireless communication system using bean forminig and system thereof | |
| KR20070048530A (en) | Method for selecting dynamic frequency of a wireless communication system using cognitive radio scheme | |
| CN107453794B (en) | Information feedback method, device and system | |
| KR20090071301A (en) | Method of transmitting Feedback Information for performing Collaborative MIMO | |
| CN111466087A (en) | Method and apparatus for processing and transmitting beam tracking requests | |
| KR102319698B1 (en) | A method and apparatus for trasceving in moible communicatoin system | |
| CN108370291B (en) | ACK/NACK message transmission method and user equipment device in single frequency network | |
| CN111867071B (en) | Method and equipment for beam failure indication and recovery based on data scheduling | |
| CN111742579A (en) | Method for executing beam failure recovery process and user device | |
| EP2811772A1 (en) | Method and apparatus for resource allocation of base station, and server for multi-cell cooperation using uplink signal channel | |
| WO2013075314A1 (en) | Methods and apparatus for component carrier selection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |