CN108112030B - Information reporting triggering method and device, and signal selection method and device - Google Patents
Information reporting triggering method and device, and signal selection method and device Download PDFInfo
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Abstract
The invention provides a triggering method and a triggering device for information reporting, and a signal selection method and a signal selection device.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for triggering information reporting, and a method and an apparatus for selecting a signal.
Background
In a wireless communication system, a base station utilizes the beam forming capability of multiple antennas and adopts narrower beam transmission to effectively improve transmission efficiency, so that the future trend of wireless communication development is to adopt multiple narrow beams to divide a cell into multiple more dynamic virtual sectors (virtual vectors) to provide various services for users. The service range of each beam can be flexibly adjusted by using the beam weight value.
However, transmission using narrow beams is sensitive to User (UE) movement and blocking of the beam link, especially at high frequencies, which is severe and often causes link failure. Therefore, when the wireless channel changes due to the above reasons, the communication system needs to perform beam link switching and recovery quickly to provide a good user experience.
In a multi-beam communication system, as shown in fig. 1, a base station forms a plurality of directional beams (corresponding to a plurality of virtual sectors) in a channel feature space or an actual 3D space by using a radio frequency or baseband precoding technique, and the base station transmits in a beam manner from a synchronization signal, as shown in fig. 2. There may be multiple SS beams in a cell, and each SS beam may be associated with multiple CSI-RS (pilot to estimate channel state) beams in a quasi co-location (QCL) relationship, characterizing their approximate beam pointing.
The CSI-RS generally uses narrow beams, and the SS also uses narrow beams for transmission, but the beam width of the SS is generally slightly wider than that of the CSI-RS. The base station may use the precoding weight corresponding to the optimal CSI-RS beam or the precoding weight corresponding to the SS beam as a reference weight for control or data transmission. But provided that the best beam information can be acquired. The steps of the most basic flow include:
step S11, the base station sends wave beam reference signals (SS or CSI-RS) in different directions and informs the configuration information of the reference signals to the receiving end;
step S12, the terminal measures the receiving quality of the beam reference signals, selects the reference signal with better quality from the beam reference signals, and feeds back the corresponding indication information to the base station;
and step S13, the base station transmits the data by using the pre-codes corresponding to the reference signals reported by the terminal.
In the above technical solution, the beam has the following quality problems:
after obtaining the beam information and the CSI information, the base station may use them for downlink transmission. However, as the operating frequency is higher and higher, the number of antennas that can be deployed is higher and higher, and in order to cope with the increase of the high-frequency path loss, the used wave beam is narrower and narrower. Both control channels and data channels, etc., may be transmitted using beams. Although the transmission efficiency is high by using beam transmission, the transmission robustness is not good. The main reason is that the quality of the service beam is obviously reduced due to the fact that the beam is narrow, and the normal communication cannot be performed because the terminal moves, the handheld terminal rotates and the propagation path is blocked.
In a multi-beam communication system, the transmission of a control channel also needs to use an SS beam or a CSI-RS beam for transmission, and once a beam failure occurs, if a base station side cannot quickly know the condition, a downlink control signaling cannot be sent, and uplink and downlink transmission cannot be initiated, which results in paralysis of the whole communication link.
Aiming at the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a triggering method and device for information reporting and a signal selection method and device, which at least solve the technical problem that the related process of the link failure of the protocol high layer cannot be triggered in the related technology.
According to an embodiment of the present invention, a method for triggering information reporting is provided, including: the terminal reports first information to the base station, wherein the first information is used for recommending the configuration of the quality threshold; the quality threshold is used for the terminal to judge whether the report of the second information is required to be triggered, and the second information is used for indicating the downlink transmission information.
According to an embodiment of the present invention, a method for triggering information reporting is provided, including: a first communication node determines a first threshold and a second threshold of a quality threshold, wherein the first threshold is larger than the second threshold; the first communication node measuring a quality value of the monitored reference signal; and under the condition that the quality value is greater than the second threshold and less than the first threshold, the first communication node judges whether the wave beam carrying the reference signal fails according to the additional condition, wherein under the condition that the wave beam fails, the first communication node triggers the report of the second information.
According to an embodiment of the present invention, a method for triggering information reporting is provided, including: the method comprises the steps that a first communication node acquires various types of quality thresholds configured by a second communication node; and the first communication node judges whether the report of second information needs to be triggered or not according to the quality thresholds of various types, wherein the second information is used for indicating downlink transmission information.
According to an embodiment of the present invention, there is provided a signal selection method including: the first communication node and the second communication node appoint a plurality of failure types of the wave beam; the first communication node configures reference signal resources for beam selection according to multiple failure types; the first communication node performs measurements and selection based on the reference signal resources.
According to an embodiment of the present invention, there is provided a signal transmission method including: the second communication node acquires the failure type of the wave beam or the reference signal activation request information; the second communication node determines a reference signal needing to be triggered according to the failure type or the reference signal activation request information; the second communication node transmits the triggered reference signal.
According to an embodiment of the present invention, a method for reporting information is provided, including: determining indication information of a beam or a reference signal to be fed back; and acquiring the position of the reporting resource of the indication information.
According to an embodiment of the present invention, there is provided a channel detection method, including: the first communication node reports the indication information of the recommended wave beam; a first communication node divides a time domain transmission resource and/or a frequency domain transmission resource into a plurality of regions; the first communication node acquires control channel configurations corresponding to a plurality of areas according to an agreed rule; the first communication node detects the control channel according to the control channel configuration.
According to another embodiment of the present invention, an apparatus for triggering information reporting is provided, including: a first reporting unit, configured to report the first information to the second communication node, where: the first information is used for recommending the configuration of the quality threshold; the quality threshold is used for the first communication node to judge whether the reporting of the second information is needed to be triggered, and the second information is used for indicating the downlink transmission information.
According to another embodiment of the present invention, an apparatus for triggering information reporting is provided, including: a first determining unit, configured to determine a first threshold and a second threshold of a quality threshold, where the first threshold is greater than the second threshold; a measuring unit for measuring a quality value of the monitored reference signal; and the first judging unit is used for judging whether the wave beam carrying the reference signal is invalid or not according to an additional condition under the condition that the quality value is greater than a second threshold and smaller than a first threshold, wherein the first communication node triggers the report of the second information under the condition that the wave beam is invalid.
According to another embodiment of the present invention, an apparatus for triggering information reporting is provided, including: the first acquisition unit is used for acquiring various types of quality thresholds configured by the second communication node; and the second judging unit is used for judging whether reporting of second information needs to be triggered or not according to the quality thresholds of various types, wherein the second information is used for indicating downlink transmission information.
According to another embodiment of the present invention, there is provided a signal selection apparatus including: the engagement unit is used for engaging a plurality of failure types of the wave beam with the second communication node; a configuration unit, configured to configure a reference signal resource for beam selection according to multiple failure types; a selection unit for performing measurement and selection based on the reference signal resource.
According to another embodiment of the present invention, there is provided a transmission apparatus of a signal, including: a second obtaining unit, configured to obtain a failure type of a beam or reference signal activation request information; the second determining unit is used for determining the reference signal needing to be triggered according to the failure type or the reference signal activation request information; and the sending unit is used for sending the triggered reference signal.
According to another embodiment of the present invention, an apparatus for reporting information is provided, including: a third determining unit, configured to determine indication information of a beam or a reference signal to be fed back; and the third acquisition unit is used for acquiring the position of the reporting resource of the indication information.
According to another embodiment of the present invention, there is provided an apparatus for detecting a channel, including: a third reporting unit, configured to report indication information of the recommended beam; a dividing unit, configured to divide the time domain transmission resource and/or the frequency domain transmission resource into a plurality of regions; a fourth obtaining unit, configured to obtain control channel configurations corresponding to the multiple regions according to an agreed rule; a detection unit for detecting the control channel according to the control channel configuration.
According to yet another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program performs any one of the methods described above when executed.
According to yet another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes to perform any one of the methods described above.
According to the invention, the first communication node sends the first information to the second communication node, the first information is used for recommending the configuration of the quality threshold, the quality threshold is used for judging whether the reporting of the second information needs to be triggered by the first communication node, and the second information is used for indicating the downlink transmission information, so that the technical problem that the related flow of the link failure of the protocol high layer cannot be triggered in the related technology is solved, and the function of triggering the related flow of the link failure of the protocol high layer is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
figure 1 is a schematic diagram of an alternative multi-beam communication system of the related art;
figure 2 is a schematic illustration of an alternative multi-beam in the related art;
fig. 3 is a block diagram of a hardware structure of a mobile terminal of a triggering method for reporting information according to an embodiment of the present invention;
fig. 4 is a flowchart of a triggering method for reporting information according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an alternative threshold according to an embodiment of the invention;
FIG. 6 is a schematic diagram of an alternative threshold according to an embodiment of the invention;
fig. 7 is a diagram of an alternative set of reference signal resources according to an embodiment of the invention;
fig. 8 is a block diagram of a triggering device for reporting information according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The following is a brief explanation of the terms referred to in this application:
QCL, Quasi-co-location, reference signal.
PDCCH, Physical downlink control channel, and Physical downlink control channel.
The DCI, which is called Downlink control signaling throughout english, is carried by a Downlink physical control channel PDCCH, and the eNB sends Downlink control information to the UE, including uplink and Downlink resource allocation, HARQ information, and a power control lamp.
CSI-RS, known as Channel state information reference signal, in english.
PUCCH, which is generally called Physical uplink control channel in english, is a Physical uplink control channel.
PRACH, fully known as Physical random access channel, Physical random access channel.
SS, also known collectively as Synchronization signal, is a Synchronization signal.
SINR, known collectively as signal to interference plus noise ratio (SINR), is the signal to interference plus noise ratio (SINR).
RSRP, which is called Reference signal receiving power in english, refers to the received power of the signal.
Example 1
The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or similar computing devices (such as a user equipment and a base station). Taking the operation on the mobile terminal as an example, fig. 3 is a block diagram of a hardware structure of the mobile terminal of a triggering method for reporting information according to an embodiment of the present invention. As shown in fig. 3, the mobile terminal 30 may include one or more (only one shown in fig. 3) processors 302 (the processors 302 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 304 for storing data, and a transmitting device 306 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 3 is only an illustration and is not intended to limit the structure of the electronic device. For example, the mobile terminal 30 may also include more or fewer components than shown in FIG. 3, or have a different configuration than shown in FIG. 3.
The memory 304 may be configured to store software programs and modules of application software, such as program instructions/modules corresponding to the triggering method for information reporting in the embodiment of the present invention, and the processor 302 executes various functional applications and data processing by operating the software programs and modules stored in the memory 304, that is, implementing the above-described method. The memory 304 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 304 may further include memory located remotely from the processor 302, which may be connected to the mobile terminal 30 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 306 is used for receiving or sending data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 30. In one example, the transmission device 306 includes a Network Interface Controller (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 306 can be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
The applicant has appreciated that when the wireless channel changes for the aforementioned reasons, the communication system needs to perform beam link switching and recovery quickly to provide a good user experience. The beam recovery techniques of the present application may be incorporated. The beam recovery technology mainly comprises the following steps:
step S21, beam monitoring, mainly beam failure (beam failure) judgment;
step S22, selecting beams, selecting new beams for reconstructing transmission link;
step S23, reporting information, reporting beam recovery related information, such as terminal indication information, beam indication information, etc.;
step S24, detecting DCI on the control channel of the newly established link.
In the beam recovery technology of the present application, the provided technical solution mainly solves the following problems:
(1) technical problem 1: how to judge the beam failure in beam monitoring to avoid misjudgment;
(2) technical problem 2: how to determine candidate reference signal resources (i.e., pilot resources) in beam selection to improve resource utilization;
(3) technical problem 3: how the terminal reports the information related to the beam recovery can better adapt to various beam problems;
(4) technical problem 4, how the terminal detects the control channel can perform beam recovery more accurately.
The following describes how the present application solves the above-mentioned problems one by one.
(I) for the above technical problem 1
The judgment of beam failure can obviously affect the probability of beam recovery initiation, an undersize trigger probability can easily affect the beam recovery performance, and an oversize trigger probability can cause unnecessary beam recovery, thereby causing resource waste and reduction of transmission efficiency. The related art has no specific optimization scheme. The method and the device can judge whether the beam fails or not through a simple threshold.
The terminal measures the beam quality information, if the beam quality is higher than the threshold, the beam is judged to be not invalid, information does not need to be reported to the base station, and if the beam quality is lower than the threshold, the beam is judged to be invalid, and beam recovery is needed. This approach suffers from accuracy problems because the measurement results are often affected by interference and suffer from insufficient statistics of the reference signal. And the quality of the beam reference signal does not completely reflect the quality of the control or data channel transmission. Based on this, the following schemes are also proposed to improve the accuracy of the beam failure judgment.
The embodiments of the present application are described in detail by taking a first communication node as a terminal (the first communication node may also be other user terminals or mobile terminals), and a second communication node as a base station (the second communication node may also be a device capable of providing user services).
(1) Scheme one
In this embodiment, a method for triggering information reporting running on the mobile terminal is provided, and fig. 4 is a flowchart of a method for triggering information reporting according to an embodiment of the present invention, as shown in fig. 4, the flowchart includes the following steps:
step S402, the terminal obtains first information, the first information is used for recommending the configuration of the quality threshold (the recommendation refers to that the first information indicates the configuration of the quality threshold to the base station and the base station autonomously confirms whether to adopt the configuration), the quality threshold is used for the terminal to judge whether to trigger the report of second information, and the second information is used for indicating downlink transmission information.
Step S404, the terminal reports the first information to the base station.
Through the steps, the terminal sends first information to the base station, the first information is used for recommending the configuration of the quality threshold, the quality threshold is used for judging whether the terminal needs to trigger the report of second information, and the second information is used for indicating downlink transmission information, so that the technical problem that the related process of the link failure of the protocol high layer cannot be triggered in the related technology is solved, and the function of triggering the related process of the link failure of the protocol high layer is realized.
Alternatively, the execution subject of the above steps may be a terminal or the like, but is not limited thereto.
Optionally, the downlink transmission information indicated by the second information includes at least one of: indication information of a terminal identifier (i.e. a node identifier) of a terminal, indication information of a reference signal, indication information of a beam, request information of beam recovery, request information of reference signal transmission, and indication information of beam quality.
Alternatively, the threshold value may be directly configured by the base station, but due to the consideration of the different receiver capabilities of each UE, there may be different reception performance for the same RSRP or SINR and code rate parameters. Some terminals can well utilize multiple antennas at the receiving end to process interference through an algorithm for processing interference at the receiving end, so that the SINR is obviously improved. Therefore, the user terminal UE recommends the threshold parameter according to the receiver, so that the base station can more accurately configure the beam recovery quality threshold, and better balance is obtained between the beam recovery performance and the resource efficiency.
If the single threshold configuration method is adopted, it is shown in fig. 5. This way the threshold setting is very demanding. In practice, determining whether a beam failure occurs by only a quality threshold is not a very accurate way, because the quality of the reference signal and the actual transmission quality of the control channel, although correlated, are not completely equivalent.
Here, in order to better reflect the actual transmission quality by using the measurement information, the present application also proposes a new method as shown in fig. 6. The main idea is to adopt a beam failure judgment mode with a plurality of thresholds, so that the judgment of beam failure is more accurate.
(2) Scheme two
In this embodiment, a method for triggering information reporting performed by the mobile terminal is provided, where the process includes the following steps:
s31, the terminal determines a first threshold and a second threshold of the quality threshold, wherein the first threshold is larger than the second threshold;
s32, the terminal measures the quality value of the monitored reference signal;
and S33, under the condition that the quality value is greater than the second threshold and less than the first threshold, the terminal judges whether the beam carrying the reference signal is invalid according to an additional condition, wherein under the condition that the beam is invalid, the terminal triggers the report of the second information.
Through the steps, the technical problem that the relevant process of the protocol high-level link failure cannot be triggered in the relevant technology can be solved, and the function of triggering the relevant process of the protocol high-level link failure is realized.
Optionally, the determining, by the terminal, the first threshold and the second threshold of the quality threshold include: the terminal determines the first threshold and the second threshold according to the convention with the base station or according to the configuration of the base station.
Optionally, the additional conditions include at least one of:
judging whether DCI information is detected in a measurement interval or not;
determining whether there is a beam having a first threshold value higher than a quality value of the beam;
judging whether the quality value of the reference signal at the designated frequency domain position is lower than a third threshold value;
and judging whether the difference value between the quality value of the reference signal measured in the previous period and the quality value of the reference signal measured in the current period is larger than a second threshold value.
(3) Scheme three
In this embodiment, a method for triggering information reporting performed by the mobile terminal is provided, where the process includes the following steps:
s41, the terminal acquires various quality thresholds configured by the base station;
and S42, the terminal judges whether to trigger the report of the second information according to various quality thresholds, wherein the second information is used for indicating the downlink transmission information.
Through the steps, the technical problem that the relevant process of the protocol high-level link failure cannot be triggered in the relevant technology can be solved, and the function of triggering the relevant process of the protocol high-level link failure is realized.
Optionally, the multiple types of quality thresholds include at least: reference signal received power RSRP and signal to interference plus noise ratio SINR.
Optionally, the RSRP type quality thresholds include a first threshold and a second threshold smaller than the first threshold, where the determining, by the terminal according to the multiple types of quality thresholds, whether reporting of the second information needs to be triggered includes: under the condition that the RSRP is lower than a second threshold, the terminal triggers the report of second information; and under the condition that the RSRP is larger than the second threshold and smaller than the first threshold, the terminal judges whether the reporting of the second information needs to be triggered according to the quality threshold of the SINR type.
Optionally, the quality threshold of the RSRP type may be a threshold (RSRP threshold), and if the quality threshold is greater than the threshold, SINR determination is required (that is, the terminal determines whether reporting of the second information needs to be triggered according to the quality threshold of the SINR type), and if the quality threshold is less than the threshold, failure is directly determined.
(II) for the above technical problem 2
When the terminal finds that the beam is invalid, the terminal needs to select a suitable new beam for reconstructing the link, and at this time, the following problems need to be solved: how to determine a measurement reference signal resource set corresponding to the beam selection, how to determine a time window and a threshold of the beam selection by the terminal.
The time window of beam selection may affect the accuracy of the measurements, beam recovery delay, etc. A too small window may result in not being able to measure enough beams and also easily result in not being able to measure multiple transmissions of the same beam, resulting in inaccurate results due to insufficient statistics. An excessively large window may cause significant delay in beam recovery, affect link reconstruction speed, and cause loss of system performance.
Only reference to the base station in the related art will configure reference signal resources, time windows, thresholds, etc. The disadvantage of this method is that the configuration is not flexible, and there is a problem of low resource efficiency.
The measurement reference signal resource set corresponding to the beam selection influences the downlink reference signal overhead and the size of the uplink reserved reporting resource, and a reference signal resource set with a proper size needs to be selected. Too large a set will cause waste of overhead, and too small a set will easily cause inaccurate selection of good beams for link recovery.
In order to optimize the resource utilization of the reference signal, in this embodiment, a method for selecting or transmitting a signal operating in the mobile terminal or the base station is provided, and the process includes the following steps:
(1) for the terminal side
And S51, the terminal and the base station appoint a plurality of failure types of the beam.
As defined by the corresponding reference signal type of beam failure, for example:
type A: SS beam failure, CSI-RS beam also failure;
type B: the CSI-RS beam fails and the SS beam does not fail.
Again as defined in terms of the number of beam failures, for example:
type A: a partial monitored beam failure;
type B: all monitored beams fail.
But may also be defined in terms of the severity of the beam failure, the location of the beam failure, etc.
Alternatively, the beam failure type may be described as a transmission performance degradation type.
S52, the terminal determines reference signal resources for beam selection according to the plurality of failure types.
S53, the terminal performs measurement and selection based on the reference signal resource.
It should be noted that a beam is a general term, and reference signals are transmitted using a beam, where different reference signals represent different beams. It is therefore necessary to explain this concept that the beam may not be visible in the protocol, only the concept of the reference signal. The different reference signal resource indexes are actually representative of beam indexes. There are other ways in which a beam can be characterized.
Through the steps, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved, the function of triggering the link failure related flow of the protocol high layer is realized, and the reference signal resource utilization rate is optimized.
(2) To the base station side
S61, the base station acquires the failure type of the wave beam or the reference signal activation request information;
s62, the base station determines the reference signal to be triggered according to the failure type or the reference signal activation request information;
s63, the base station transmits the triggered reference signal.
The reference signal is generally preconfigured for multiple types of beam failures, and it should be noted that after finding a beam failure, the terminal may feed back the type information of the beam failure to the base station, or may directly make an activation request for the reference signal. The relationship between the type information of the beam failure and the reference signal activation request information may be M to N, and M may be greater than N, less than N, or equal to N.
Information (including type and set size) related to the selected reference signal resource set at the time of beam selection can be associated with the type of beam failure. In the aforementioned different cases where failure occurs in the CSI-RS beam and the SS beam, the occurrence 1 may be moving or rotating to cause beam change, and the occurrence 2 may be Blocking. May correspond to different sets of candidate reference signal resources, respectively. Taking fig. 2 and fig. 7 as an example, specifically, the following may be:
different SSs are assumed here to be different virtual sectors virtual cells.
Case 1: serving beam, CSI-RS 15 beam failed, Serving virtual Cell, SS4 did not fail.
Selecting a reference signal type corresponding to the wave beam as CSI-RS; such as CSI-RS 13-16. Extensions to the CSI-RS11-18 are also contemplated if SS3, SS5, and SS4 have relatively similar time delays.
Case 2: serving beam, CSI-RS 15 beam, Serving virtual Cell, SS4 also fails.
The reference signal type corresponding to the beam selection is SS, such as SS1-SS 8.
If CSI-RS beams associated with other SSs are also being transmitted and their configurations are known by the UE, the CSI-RS beam may also be selected, or selected among a set of CSI-RS and SS hybrid beams.
It should be noted that "CSI-RS 1-4" in fig. 7 identifies CSI-RSs numbered 1 to 4, and so on.
(III) for the above technical problem 3
The terminal needs to recover the related information by the beam on the uplink channel or signal, and the information is mainly divided into two types of information: new beam indication information, UE indication information. When the sending beam fails, the terminal reports the information, the uplink may be broken, and a brand new design needs to be introduced in the uplink in consideration of how to guarantee the receiving success rate and simultaneously avoid wasting uplink resource overhead, information timeliness and other problems.
When reporting the beam recovery information, how to transmit needs to be considered. The method mainly comprises two aspects: transmit power and transmit beam.
For the transmit power: at present, there is no related technical solution, and a set of special power control mechanism may be configured for the PUCCH, but the set of power control mechanism may not be suitable for sending the beam recovery request. Independent design power control is required. The specific power control method may be:
in this embodiment, a method for reporting information is provided, where the process includes the following steps:
s71, determining the indication information of the beam or the reference signal to be fed back;
s72, obtaining the location of the reporting resource (i.e. the resource for uplink transmission) of the indication information.
Optionally, the method may further include:
s73, determining the transmitting power according to the position of the reported resource;
and S74, reporting the indication information at the position of the reporting resource according to the transmitting power.
Through the steps, the technical problem that the relevant process of the protocol high-level link failure cannot be triggered in the relevant technology can be solved, the function of triggering the relevant process of the protocol high-level link failure is realized, and the power control is optimized.
Optionally, the obtaining of the location of the reporting resource of the indication information includes: and determining the position of the reported resource according to the failure type of the wave beam.
Optionally, determining the position of the candidate reporting resource according to the failure type of the beam includes: when the failure type is CSI-RS failure, reporting corresponding to the region to which the PUCCH belongs; and when the failure type is SS failure, reporting the corresponding PRACH like belonging area.
Optionally, the determining the transmission power according to the location of the reported resource includes: when the position of the reported resource is the region to which the PRACH Like belongs, acquiring the transmitting power appointed by the base station; and when the position of the reported resource is the region to which the PUCCH belongs, determining the uplink transmitting power according to the selected and reported downlink reference signal resource.
(IV) for the above technical problem 4
And after the terminal judges that the beam is invalid and initiates a beam recovery request, for example, after the beam switching request is reported (t2), the terminal immediately switches to a new beam to detect the control information. This approach may cause some problems as follows: the measurement result is inaccurate, and the primary beam can work normally; the channel of the primary beam becomes good in the beam recovery process; and a new receiving beam is found, the quality is improved, and the original transmitting beam is not required to be changed.
In view of the above, the present application proposes a new method that does not cut off the original link but allows detection on the new link. In this embodiment, a method for detecting a channel is provided, which includes the following steps:
s81, the terminal reports the indication information of the recommended wave beam;
s82, the terminal divides the time domain transmission resource and/or the frequency domain transmission resource into multiple regions (the division mode is configured by the base station or agreed by the base station in advance);
s83, the terminal obtains the control channel configuration corresponding to the plurality of areas according to the appointed rule;
s84, the terminal detects the control channel according to the control channel configuration.
Through the steps, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved.
And the terminal reports the indication information of the new beam (the selected reference signal resource).
The terminal divides the time domain and/or frequency domain transmission resources into a plurality of regions according to an agreed rule.
And the terminal determines the control channel configuration corresponding to the plurality of resource areas according to an agreed rule.
At least one area corresponds to the original control channel configuration, and one area determines the corresponding control channel configuration according to the indication information of the new beam (selected reference signal resource) reported by the terminal.
When reporting multiple new beam (selected reference signal resource) indication information, there are multiple regions that control the corresponding control channel configuration to be determined according to the multiple new beam (selected reference signal resource) indication information, respectively.
And the terminal respectively configures and detects the control channels according to the corresponding control channels in the plurality of resource sets.
One simple way is to divide the multiple regions in the time domain:
region 1: odd-numbered symbols or slots, region 2: even numbered symbols or slots.
When the terminal detects the control channel in the area 1, the terminal performs detection according to the original control channel configuration.
When the terminal detects the control channel in the area 2, the terminal performs detection according to the new control channel configuration. The new control channel configuration may be determined based on the reported new beam (selected reference signal resource) information.
When the terminal detects the DCI information transmitted in the control channel resource corresponding to the original beam or the new beam, the terminal considers the response of the beam recovery and considers the end of the beam recovery. The method mainly improves the success rate of beam recovery under the following conditions.
The result of the beam measurement is inaccurate and cannot correctly reflect the quality of the control channel.
The Blocking link is restored during beam recovery; during the beam recovery period, the DCI can be correctly received on the original control channel by adjusting the receiving beam; the base station can send DCI in the control channels of the original beam and the new beam, and has a larger chance of correctly detecting the control information.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
The judgment of beam failure can obviously affect the probability of beam recovery initiation, an undersize trigger probability can easily affect the beam recovery performance, and an oversize trigger probability can cause unnecessary beam recovery, thereby causing resource waste and reduction of transmission efficiency. The related art has no specific optimization scheme. The method and the device can judge whether the beam fails or not through a simple threshold.
The terminal measures the beam quality information, if the beam quality is higher than the threshold, the beam is judged to be invalid, information does not need to be reported to the base station, and if the beam quality is lower than the threshold, the beam is judged to be invalid, and beam recovery is needed. This approach suffers from accuracy problems because the measurement results are often affected by interference and suffer from insufficient statistics of the reference signal. And the quality of the beam reference signal does not completely reflect the quality of the control or data channel transmission. Based on this, the following schemes are also proposed to improve the accuracy of the beam failure judgment.
(1) Scheme one
In this embodiment, a triggering device for reporting information is further provided, where the triggering device is used to implement the foregoing embodiments and preferred embodiments, and details of the foregoing description are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.
The embodiment of the invention provides a triggering device for reporting information, which comprises:
a first reporting unit, configured to report the first information to a base station, where: the first information is used for recommending the configuration of the quality threshold; the quality threshold is used for the terminal to judge whether the reporting of the second information is needed to be triggered, and the second information is used for indicating the downlink transmission information.
Through the units, the terminal sends first information to the base station, the first information is used for recommending the configuration of the quality threshold, the quality threshold is used for judging whether the terminal needs to trigger the report of second information, and the second information is used for indicating downlink transmission information, so that the technical problem that the related flow of the protocol high-level link failure cannot be triggered in the related technology is solved, and the function of triggering the related flow of the protocol high-level link failure is realized.
Optionally, the downlink transmission information indicated by the second information includes at least one of: indication information of a terminal identifier of a terminal, indication information of a reference signal, indication information of a beam, request information of beam recovery, request information of reference signal transmission, indication information of beam quality.
Alternatively, the threshold value may be directly configured by the base station, but due to the consideration of the different receiver capabilities of each UE, there may be different reception performance for the same RSRP or SINR and code rate parameters. Some terminals can well utilize multiple antennas at the receiving end to process interference through an algorithm of interference processing at the receiving end, and the SINR is obviously improved. Therefore, the user terminal UE recommends the threshold parameter according to the receiver, so that the base station can more accurately configure the beam recovery quality threshold, and better balance is obtained between the beam recovery performance and the resource efficiency.
(2) Scheme two
Fig. 8 is a block diagram of a triggering device for reporting information according to an embodiment of the present invention, and as shown in fig. 8, the triggering device includes:
a first determining unit 801, configured to determine a first threshold and a second threshold of a quality threshold, where the first threshold is greater than the second threshold;
a measuring unit 803 for measuring a quality value of the monitored reference signal;
a first determining unit 805, configured to determine whether a beam carrying a reference signal fails according to an additional condition when the quality value is greater than the second threshold and smaller than the first threshold, where the terminal triggers reporting of the second information when the beam fails.
Through the unit module, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved, and the function of triggering the link failure related flow of the protocol high layer is realized.
Optionally, the determining, by the terminal, the first threshold and the second threshold of the quality threshold include: the terminal determines the first threshold and the second threshold according to the convention with the base station or according to the configuration of the base station.
Optionally, the additional conditions include at least one of:
judging whether DCI information is detected in a measurement interval or not;
determining whether there is a beam having a first threshold value higher than a quality value of the beam;
judging whether the quality value of the reference signal at the designated frequency domain position is lower than a third threshold value;
and judging whether the difference value between the quality value of the reference signal measured in the previous period and the quality value of the reference signal measured in the current period is larger than a second threshold value.
In this embodiment, a triggering apparatus for reporting information is provided, where the apparatus includes the following units:
the first obtaining unit is used for obtaining various types of quality thresholds configured by the base station;
and the second judging unit is used for judging whether reporting of second information needs to be triggered or not according to the quality thresholds of various types, wherein the second information is used for indicating downlink transmission information.
Through the unit module, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved, and the function of triggering the link failure related flow of the protocol high layer is realized.
Optionally, the multiple types of quality thresholds include at least: reference signal received power RSRP and signal to interference plus noise ratio SINR.
Optionally, the RSRP type quality thresholds include a first threshold and a second threshold smaller than the first threshold, where the determining, by the terminal according to the multiple types of quality thresholds, whether reporting of the second information needs to be triggered includes: under the condition that the RSRP is lower than a second threshold, the terminal triggers the report of second information; and under the condition that the RSRP is larger than the second threshold and smaller than the first threshold, the terminal judges whether the reporting of the second information needs to be triggered according to the quality threshold of the SINR type.
In this embodiment, a signal selection or transmission apparatus is provided.
(1) For the terminal side, the device comprises the following units:
the contract unit is used for contract of multiple failure types of the wave beams with the base station;
a configuration unit, configured to determine a reference signal resource for beam selection according to multiple failure types;
a selection unit for performing measurement and selection based on the reference signal resource.
Through the units, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved, the function of triggering the link failure related flow of the protocol high layer is realized, and the reference signal resource utilization rate is optimized.
In the present embodiment, a signal transmission apparatus is provided.
(2) For the base station side, the device comprises the following units:
a second obtaining unit, configured to obtain a failure type of a beam or reference signal activation request information;
the second determining unit is used for determining the reference signal needing to be triggered according to the failure type or the reference signal activation request information;
and a sending unit, configured to send the triggered reference signal.
The reference signal is generally preconfigured for multiple types of beam failures, and it should be noted that, after finding a beam failure, the terminal may feed back the type information of the beam failure to the base station, and may also directly make an activation request for the reference signal. The relationship between the type information of the beam failure and the reference signal activation request information may be M to N, and M may be greater than N, less than N, or equal to N.
In this embodiment, an apparatus for reporting information is provided, where the apparatus includes the following units:
a third determining unit, configured to determine indication information of a beam or a reference signal to be fed back;
and the third acquisition unit is used for acquiring the position of the reporting resource of the indication information.
Optionally, the apparatus may further comprise:
a fourth determining unit, configured to determine the transmission power according to the location of the reported resource;
and the second reporting unit is used for reporting the indication information at the position of the reporting resource according to the transmitting power.
Through the units, the technical problem that the related process of the protocol high-level link failure cannot be triggered in the related technology can be solved, the function of triggering the related process of the protocol high-level link failure is realized, and the power control is optimized.
Optionally, the obtaining of the location of the reporting resource of the indication information includes: and determining the position of the reported resource according to the failure type of the wave beam.
Optionally, determining the position of the candidate reporting resource according to the failure type of the beam includes: when the failure type is CSI-RS failure, reporting corresponding to the region to which the PUCCH belongs; and when the failure type is SS failure, reporting the corresponding area to which the PRACH like belongs.
Optionally, determining the transmission power according to the location of the reported resource includes: when the position of the reported resource is the region to which PRACH Like belongs, acquiring the transmitting power appointed with a base station; and when the position of the reported resource is the region to which the PUCCH belongs, determining the uplink transmitting power according to the selected and reported downlink reference signal resource.
In this embodiment, an apparatus for detecting a channel is provided, and the apparatus includes the following units:
a third reporting unit, configured to report indication information of the recommended beam;
a dividing unit, configured to divide the time domain transmission resource and/or the frequency domain transmission resource into a plurality of regions;
a fourth obtaining unit, configured to obtain control channel configurations corresponding to the multiple regions according to an agreed rule;
a detection unit for detecting the control channel according to the control channel configuration.
Through the unit, the technical problem that the link failure related flow of the protocol high layer cannot be triggered in the related technology can be solved.
And the terminal reports the indication information of the new beam (the selected reference signal resource).
The terminal divides the time domain and/or frequency domain transmission resources into a plurality of regions according to an agreed rule.
And the terminal determines the control channel configuration corresponding to the plurality of resource areas according to an agreed rule.
At least one area corresponds to the original control channel configuration, and one area determines the corresponding control channel configuration according to the indication information of the new beam (selected reference signal resource) reported by the terminal.
When reporting multiple new beam (selected reference signal resource) indication information, there are multiple regions that control the corresponding control channel configuration to be determined according to the multiple new beam (selected reference signal resource) indication information, respectively.
And the terminal respectively configures and detects the control channels according to the corresponding control channels in the plurality of resource sets.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are located in different processors in any combination.
Example 3
An embodiment of the present invention further provides a storage medium including a stored program, wherein the program executes any one of the methods described above.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s91, the terminal determines a first threshold and a second threshold of the quality threshold, wherein the first threshold is larger than the second threshold;
s92, the terminal measures the quality value of the monitored reference signal;
and S93, under the condition that the quality value is larger than the second threshold and smaller than the first threshold, the terminal judges whether the wave beam carrying the reference signal is invalid according to additional conditions, wherein under the condition that the wave beam is invalid, the terminal triggers the report of the second information.
Optionally, the storage medium is further arranged to store program code for performing the steps of:
s101, a terminal acquires various quality thresholds configured by a base station;
and S102, the terminal judges whether the report of second information needs to be triggered or not according to various quality thresholds, wherein the second information is used for indicating downlink transmission information.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide a processor configured to execute a program, where the program executes to perform any of the steps in the method.
Optionally, in this embodiment, the program is configured to perform the following steps:
s91, the terminal determines a first threshold and a second threshold of the quality threshold, wherein the first threshold is larger than the second threshold;
s92, the terminal measures the quality value of the monitored reference signal;
and S93, under the condition that the quality value is greater than the second threshold and less than the first threshold, the terminal judges whether the beam carrying the reference signal is invalid according to an additional condition, wherein under the condition that the beam is invalid, the terminal triggers the report of the second information.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized in a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a memory device and executed by a computing device, and in some cases, the steps shown or described may be executed out of order, or separately as individual integrated circuit modules, or multiple modules or steps thereof may be implemented as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for triggering information reporting is characterized by comprising the following steps:
a first communication node determines a first threshold and a second threshold of a quality threshold, wherein the first threshold is larger than the second threshold;
the first communication node measuring a quality value of a monitored reference signal;
and when the quality value is greater than the second threshold and smaller than the first threshold, the first communication node determines whether a beam carrying the reference signal fails according to an additional condition, wherein the first communication node triggers reporting of second information when the beam fails, and the additional condition includes at least one of the following conditions:
judging whether DCI information is detected in a measurement interval or not;
determining whether there is a beam having a quality value higher than the beam by a first threshold;
judging whether the quality value of the reference signal at the designated frequency domain position is lower than a third threshold value;
and judging whether the difference value between the quality value of the reference signal measured in the previous period and the quality value of the reference signal measured in the current period is larger than a second threshold value.
2. The method of claim 1, wherein the first communications node determining the first threshold and the second threshold of the quality threshold comprises:
the first communication node determines the first threshold and the second threshold according to an agreement with a second communication node or according to a configuration of the second communication node.
3. A method for triggering information reporting is characterized by comprising the following steps:
the method comprises the steps that a first communication node acquires various types of quality thresholds configured by a second communication node;
the first communication node judges whether to trigger the reporting of second information according to the multiple types of quality thresholds, wherein the second information is used for indicating downlink transmission information, and the multiple types of quality thresholds at least comprise: reference Signal Received Power (RSRP) and signal-to-interference-plus-noise ratio (SINR), wherein quality thresholds of the RSRP type include a first threshold and a second threshold smaller than the first threshold, and the step of judging whether to trigger the reporting of the second information by the first communication node according to the multiple types of quality thresholds includes:
the first communication node triggers reporting of the second information when the RSRP is lower than the second threshold;
and under the condition that the RSRP is greater than the second threshold and less than the first threshold, the first communication node judges whether the reporting of the second information needs to be triggered according to the quality threshold of the SINR type.
4. A method for detecting a channel, comprising:
the first communication node reports the indication information of the recommended wave beam;
the first communication node dividing time domain transmission resources and/or frequency domain transmission resources into a plurality of regions;
the first communication node acquires control channel configurations corresponding to the multiple areas according to an agreed rule;
the first communication node detects a control channel according to the control channel configuration.
5. A trigger device for reporting information is characterized by comprising:
a first determining unit, configured to determine a first threshold and a second threshold of a quality threshold, where the first threshold is greater than the second threshold;
a measuring unit for measuring a quality value of the monitored reference signal;
a first determining unit, configured to determine, according to an additional condition, whether a beam carrying the reference signal fails when the quality value is greater than the second threshold and smaller than the first threshold, where, when the beam fails, a first communication node triggers reporting of second information, where the additional condition includes at least one of:
judging whether DCI information is detected in a measurement interval or not;
determining whether there is a beam having a quality value higher than the beam by a first threshold;
judging whether the quality value of the reference signal at the designated frequency domain position is lower than a third threshold value;
and judging whether the difference value between the quality value of the reference signal measured in the previous period and the quality value of the reference signal measured in the current period is larger than a second threshold value.
6. A trigger device for reporting information is characterized by comprising:
the first acquisition unit is used for acquiring various types of quality thresholds configured by the second communication node;
a second determining unit, configured to determine whether to trigger reporting of second information according to the multiple types of quality thresholds, where the second information is used to indicate downlink transmission information, and the multiple types of quality thresholds at least include: reference Signal Received Power (RSRP) and signal to interference plus noise ratio (SINR), wherein the quality thresholds of the RSRP types include a first threshold and a second threshold smaller than the first threshold, and the second judging unit is further configured to trigger, by the first communication node, reporting of the second information when the RSRP is lower than the second threshold; and under the condition that the RSRP is greater than the second threshold and less than the first threshold, the first communication node judges whether the reporting of the second information needs to be triggered according to the quality threshold of the SINR type.
7. An apparatus for detecting a channel, comprising:
a third reporting unit, configured to report indication information of the recommended beam;
a dividing unit, configured to divide the time domain transmission resource and/or the frequency domain transmission resource into a plurality of regions;
a fourth obtaining unit, configured to obtain, according to an agreed rule, control channel configurations corresponding to the multiple regions;
and the detection unit is used for detecting the control channel according to the control channel configuration.
8. A storage medium, comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 4.
9. A processor for running a program, wherein,
the program when running performs the method of any one of claims 1 to 4.
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| CN201710687049.2A CN108112030B (en) | 2017-08-11 | 2017-08-11 | Information reporting triggering method and device, and signal selection method and device |
| PCT/CN2018/100257 WO2019029749A1 (en) | 2017-08-11 | 2018-08-13 | Information report triggering method and device, and signal selection method and device |
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| CN110572854B (en) * | 2018-06-06 | 2021-10-22 | 中国电信股份有限公司 | Beam recovery method, system, base station, terminal and computer-readable storage medium |
| CN110677928B (en) * | 2018-07-03 | 2021-05-28 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN109314871B (en) * | 2018-09-13 | 2022-04-15 | 北京小米移动软件有限公司 | Method, device, device and storage medium for reporting beam measurement report |
| ES2992823T3 (en) * | 2018-09-13 | 2024-12-18 | Beijing Xiaomi Mobile Software Co Ltd | Method, device and equipment for configuring rs set, and storage medium |
| JP7308932B2 (en) | 2018-09-27 | 2023-07-14 | ノキア テクノロジーズ オサケユイチア | Beam failure recovery for serving cells |
| WO2020063457A1 (en) * | 2018-09-27 | 2020-04-02 | Intel Corporation | Apparatus and method for user equipment panel selection |
| CN110972272B (en) * | 2018-09-28 | 2022-11-25 | 北京紫光展锐通信技术有限公司 | Information reporting method, user terminal and computer readable storage medium |
| CN111294970B (en) * | 2019-03-29 | 2022-11-29 | 北京紫光展锐通信技术有限公司 | Scheduling method, user terminal, base station, and computer-readable storage medium |
| CN111836293B (en) * | 2019-04-23 | 2023-05-09 | 中国移动通信有限公司研究院 | Method for reporting beam failure recovery BFR, terminal and network side equipment |
| CN112054833B (en) * | 2019-06-06 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device in communication node for wireless communication |
| US12058740B2 (en) | 2019-06-06 | 2024-08-06 | Shanghai Langbo Communication Technology Company Limited | Method and device in communication node used for wireless communication |
| CA3193620A1 (en) * | 2020-10-15 | 2022-04-21 | Zte Corporation | System and method for beam failure recovery |
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