CN117015952A - Information indicating method, terminal, communication system and storage medium - Google Patents

Information indicating method, terminal, communication system and storage medium Download PDF

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Publication number
CN117015952A
CN117015952A CN202380009745.1A CN202380009745A CN117015952A CN 117015952 A CN117015952 A CN 117015952A CN 202380009745 A CN202380009745 A CN 202380009745A CN 117015952 A CN117015952 A CN 117015952A
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China
Prior art keywords
resource
terminal
information
feedback
reference signal
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CN202380009745.1A
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Chinese (zh)
Inventor
朱亚军
洪伟
苟家彤
李勇
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Abstract

The embodiment of the disclosure provides an information indication method, a terminal, a communication system and a storage medium. The method comprises the following steps: receiving first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on the beam; determining whether to switch or not to switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource. In this way, beam management may be more accurate.

Description

Information indicating method, terminal, communication system and storage medium
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an information indication method, a terminal, a communication system, and a storage medium.
Background
In the field of communication technology, a Sidelink (Sidelink) link may support direct communication between terminals, where a Sidelink communication mode may be based on transmission and reception of an omni-directional antenna. Beam-based reception and transmission may be employed, so beam management in sidelink needs to be studied.
Disclosure of Invention
In the related art, situations of inaccurate or even erroneous beam management may occur.
The embodiment of the disclosure provides an information indication method, a terminal, a communication system and a storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided an information indicating method, the method including:
receiving first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
According to a second aspect of embodiments of the present disclosure, there is provided an information indicating method, the method including:
sending first information to a second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
According to a third aspect of embodiments of the present disclosure, there is provided an information indicating method, the method including:
the first terminal sends first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch or not switch the wave beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal comprising:
the receiving and transmitting module is configured to send first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
According to a fifth aspect of embodiments of the present disclosure, there is provided a terminal comprising:
the transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
a processing module configured to: determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
According to a sixth aspect of embodiments of the present disclosure, there is provided a communication system, wherein the communication system comprises a terminal configured to implement the information indication method provided in the first aspect and a network device configured to implement the information indication method provided in the second aspect.
According to a seventh aspect of embodiments of the present disclosure, there is provided a terminal comprising:
one or more processors;
the terminal is configured to execute the information indication method described in the first aspect.
According to an eighth aspect of embodiments of the present disclosure, there is provided a terminal comprising:
one or more processors;
the terminal is configured to perform the information indication method according to the second aspect.
According to a ninth aspect of embodiments of the present disclosure, there is provided a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information indication method provided in the first aspect, the second aspect or the third aspect.
The technical scheme provided by the embodiment of the disclosure can accurately manage the wave beam.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the embodiments of the invention.
FIG. 1a is a schematic diagram of an architecture of a communication system, shown according to an exemplary embodiment;
FIG. 1b is a schematic diagram of an erroneous measurement reference signal, according to an exemplary embodiment;
FIG. 2a is a flow diagram illustrating a method of information indication according to an exemplary embodiment;
FIG. 2b is a schematic diagram of a feedback codebook according to an example embodiment;
FIG. 2c is a schematic diagram of a feedback codebook according to an example embodiment;
FIG. 2d is a schematic diagram of a feedback codebook according to an example embodiment;
FIG. 3a is a flow diagram illustrating a method of information indication according to an exemplary embodiment;
FIG. 3b is a flow chart illustrating a method of information indication according to an exemplary embodiment;
FIG. 4a is a flow diagram illustrating a method of information indication according to an exemplary embodiment;
FIG. 4b is a flow chart illustrating a method of information indication according to an exemplary embodiment;
FIG. 5a is a flow diagram illustrating a method of information indication according to an exemplary embodiment;
FIG. 6a is a flow diagram illustrating a method of information indication according to an exemplary embodiment;
fig. 7a is a schematic structural view of a first information indicating apparatus according to an exemplary embodiment;
fig. 8a is a schematic diagram illustrating a structure of a UE according to an exemplary embodiment;
Fig. 8b is a schematic diagram of a communication device according to an exemplary embodiment.
Detailed Description
The embodiment of the disclosure provides an information indication method, a terminal, a communication system and a storage medium.
In a first aspect, an embodiment of the present disclosure provides an information indication method, including:
receiving first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In the above embodiment, since the first information indicates the measurement result obtained by the first terminal measuring the first reference signal received on the first resource, the second terminal may determine to switch or not switch the beam based on the first information and the second information together, which reduces the situation of beam error switching and improves the accuracy of beam switching compared to the manner of not transmitting the first information and/or determining to switch or not switch the beam based on the measurement result only.
With reference to some embodiments of the first aspect, in some embodiments, the determining, based on the first information and the second information, to switch or not to switch a beam includes:
determining, based on the first information and the second information, a first number of the first resources corresponding to a decrease in wireless transmission quality due to a decrease in beam quality; the wireless transmission quality corresponding to the first resource is smaller than a first threshold value;
based on the first number, a beam is determined to be switched or not switched.
In the above embodiment, since the first number of the first resources corresponding to the degradation of the radio transmission quality due to the degradation of the beam quality can be determined based on the first information and the second information, the degradation of the radio transmission quality due to other factors can be excluded from determining the first number, and thus, the beam can be determined to be switched or not to be switched based on the magnitude of the first number.
With reference to some embodiments of the first aspect, in some embodiments, the determining to switch or not switch the beam based on the first number includes one of:
determining that the first number is greater than or equal to a second threshold, determining a handover beam;
Determining that the first number is less than or equal to a second threshold and determining not to switch beams.
In the above embodiment, whether to switch the beam may be adapted to the size of the first number, which is essentially adapted to the case where the quality of wireless transmission is degraded due to the degradation of the beam quality, it may be accurately determined whether to switch the beam.
With reference to some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal CSI-RS.
In the above embodiment, the accuracy of beam switching in the measurement scenario using CSI-RS may be achieved.
With reference to some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.
In the above embodiment, at least one of the following is included:
the wireless transmission quality is smaller than a first threshold value, and the value of the feedback bit is a first value;
the wireless transmission quality is greater than or equal to a first threshold value, and the value of the feedback bit is a second value.
In the above-described embodiment, the magnitude of the wireless transmission quality can be reflected by setting different values of the feedback bits.
With reference to some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; the feedback bits of the feedback codebook are feedback bits which are complemented based on a feedback time sequence under the condition that the number of bits contained in the feedback codebook is smaller than a third threshold value; and the number of feedback bits of the feedback codebook after the complement is equal to the third threshold value.
In the above embodiment, when the number of feedback codebooks is insufficient, the number of feedback bits may be complemented based on the feedback timing sequence, so that the number of feedback bits after the complement is equal to the third threshold value, which is convenient for the analysis of the second terminal.
With reference to some embodiments of the first aspect, in some embodiments, the value of the feedback bit that is complemented is set to a second value.
In the above embodiment, the inaccuracy factor of the beam switching caused by the complement feedback bits can be reduced.
With reference to some embodiments of the first aspect, in some embodiments, the receiving the first information sent by the first terminal includes:
And receiving the first information sent by the first terminal through a beam failure recovery request message.
In the above embodiment, the beam failure recovery request message may be multiplexed to receive the first information, and compared with setting a dedicated message to send the first information, signaling overhead and resource occupation may be reduced, and resource utilization and communication efficiency may be improved.
In a second aspect, an embodiment of the present disclosure provides an information indicating method, including:
sending first information to a second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
With reference to some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal CSI-RS.
With reference to some embodiments of the first aspect, in some embodiments, the method further includes:
Determining that the wireless transmission quality of the first reference signal detected on the first resource for the 1 st time is smaller than a first threshold value, and recording the wireless transmission quality of the 1 st time and/or the subsequent n times to obtain the measurement result;
wherein n is an integer greater than or equal to 1.
In the above embodiment, the measurement result may be timely obtained and timely reported to the second terminal after the first detection of the degradation of the wireless transmission quality of the first reference signal.
With reference to some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; the obtaining the measurement result includes:
and determining the value of the feedback bit corresponding to each first resource based on the corresponding detected wireless transmission quality on each first resource.
In the above embodiment, the corresponding detected wireless transmission quality on the different first resources may be fed back through different feedback bits.
With reference to some embodiments of the first aspect, in some embodiments, the determining, based on the radio transmission quality detected correspondingly on each of the first resources, a value of the feedback bit corresponding to each of the first resources includes at least one of:
Determining that the wireless transmission quality is smaller than a first threshold value, and determining that the value of the feedback bit is a first value;
and determining that the wireless transmission quality is greater than or equal to a first threshold value, and determining that the value of the feedback bit is a second value.
With reference to some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; the method further comprises the steps of:
determining that a second number of feedback bits contained in a feedback codebook is smaller than a third threshold value, and complementing the feedback bits of the feedback codebook based on a feedback time sequence;
and the number of the feedback bits of the feedback codebook after the completion is equal to the third threshold value.
In the above embodiment, when the number of feedback codebooks is insufficient, the number of feedback bits may be complemented based on the feedback timing sequence, so that the number of feedback bits after the complement is equal to the third threshold value, which is convenient for the analysis of the second terminal.
With reference to some embodiments of the first aspect, in some embodiments, the value of the bit for complementing is set to a second value.
With reference to some embodiments of the first aspect, in some embodiments, the complementing feedback bits of the feedback codebook based on feedback timing includes at least one of:
For a second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the second resource into the feedback codebook; the second resource is a resource before the first resource corresponding to the first threshold value, wherein the first resource is detected that the wireless transmission quality of the first reference signal is smaller than the first threshold value for the 1 st time;
for a third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the third resource into the feedback codebook; the third resource is a resource after the count number of the BFI counter of the beam failure instance is greater than the first resource corresponding to the fourth threshold.
In the above embodiment, the second resource and the feedback bit corresponding to the second resource may be complemented, and the feedback timing may be adapted.
With reference to some embodiments of the first aspect, in some embodiments, the sending the first information to the second terminal includes:
and determining that the count number of the BFI counter is larger than a fourth threshold value, and sending the first information to the second terminal.
In the above embodiment, in this way, in the case of poor wireless transmission quality, feedback may be timely sent to the second terminal to notify the second terminal that the beam is timely switched.
With reference to some embodiments of the first aspect, in some embodiments, the sending the first information to the second terminal includes:
and sending the first information to the second terminal through a beam failure recovery request message.
In the above embodiment, the beam failure recovery request message may be multiplexed to send the first information, which may reduce signaling overhead and resource occupation and improve resource utilization and communication efficiency compared with setting a dedicated message to send the first information.
In a third aspect, an embodiment of the present disclosure provides an information indication method, which is characterized in that the method includes:
the first terminal sends first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch or not switch the wave beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:
the receiving and transmitting module is configured to send first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In a fifth aspect, an embodiment of the present disclosure provides a terminal, where the terminal includes:
the transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
a processing module configured to: determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In a sixth aspect, an embodiment of the present disclosure provides an information indicating system, where the communication system includes a first terminal configured to implement the information indicating method described in the optional implementation manner of the first aspect, and a second terminal configured to implement the information indicating method described in the optional implementation manner of the second aspect.
In a seventh aspect, an embodiment of the present disclosure provides a terminal, including:
one or more processors;
the terminal is used for executing the information indication method provided in the first aspect.
In an eighth aspect, an embodiment of the present disclosure provides a terminal, including:
one or more processors;
wherein the terminal is configured to perform the information indication method provided in the second aspect.
In a ninth aspect, embodiments of the present disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information indication method described in the alternative implementations of the first and second aspects.
In a tenth aspect, embodiments of the present disclosure propose a program product which, when executed by a communication device, causes the communication device to perform the method as described in the alternative implementations of the first and second aspects.
In an eleventh aspect, embodiments of the present disclosure propose a computer program which, when run on a computer, causes the computer to carry out the method as described in the alternative implementations of the first and second aspects.
In a twelfth aspect, embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises a processing circuit configured to perform the method described in accordance with alternative implementations of the first and second aspects described above.
It will be appreciated that the above-described terminal, communication system, storage medium, program product, computer program, chip or chip system may be adapted to perform the methods set forth in the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.
The embodiment of the disclosure provides an information indication method, a terminal communication system and a storage medium. In some embodiments, the terms of the information indicating method, the information processing method, the information transmitting method, and the like may be replaced with each other, and the terms of the communication system, the information processing system, and the like may be replaced with each other.
The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.
In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.
The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.
In the presently disclosed embodiments, "plurality" refers to two or more.
In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.
In some embodiments, "A, B at least one of", "a and/or B", "in one case a, in another case B", "in response to one case a", "in response to another case B", and the like, may include the following technical solutions according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to that described above when there are more branches such as A, B, C.
In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to that described above when there are more branches such as A, B, C.
The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.
In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.
In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.
In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.
In some embodiments, the apparatuses and devices may be interpreted as entities, or may be interpreted as virtual, and the names thereof are not limited to those described in the embodiments, and may also be interpreted as "device (apparatus)", "device)", "circuit", "network element", "node", "function", "unit", "component (section)", "system", "network", "chip system", "entity", "body", and the like in some cases.
In some embodiments, a "network" may be interpreted as an apparatus comprised in the network, e.g. an access network device, a core network device, etc.
In some embodiments, the "access network device (access network device, AN device)" may also be referred to as a "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be referred to as a "node)", "access point (access point)", "transmission point (transmission point, TP)", "Reception Point (RP)", "transmission and/or reception point (transmission/reception point), TRP)", "panel", "antenna array", "cell", "macrocell", "microcell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", bandwidth part (BWP), etc.
In some embodiments, a "terminal" or "terminal device" may be referred to as a "user equipment" (UE), a "user terminal" (MS), a "mobile station" (MT), a subscriber station (subscriber station), a mobile unit (mobile unit), a subscriber unit (subscore unit), a wireless unit (wireless unit), a remote unit (remote unit), a mobile device (mobile device), a wireless device (wireless device), a wireless communication device (wireless communication device), a remote device (remote device), a mobile subscriber station (mobile subscriber station), an access terminal (access terminal), a mobile terminal (mobile terminal), a wireless terminal (wireless terminal), a remote terminal (mobile terminal), a handheld device (handset), a user agent (user), a mobile client (client), a client, etc.
In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.
In some embodiments, data, information, etc. may be obtained after user consent is obtained.
Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.
Fig. 1a is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure.
As shown in fig. 1a, the communication system 100 includes a first terminal (terminal) 101 and a second terminal 102. Of course, the communication system may also include an access network device and a core network device, which are not limited herein.
In some embodiments, the network device may include at least one of an access network device and a core network device.
In some embodiments, the terminal includes at least one of a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a computer with wireless transceiving functionality, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), for example, but is not limited thereto.
In some embodiments, the access network device may be, for example, a node or a device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.
In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.
In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.
In some embodiments, the core network device may be a device, including one or more network elements, or may be a plurality of devices or a device group, including all or part of one or more network elements. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC).
It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art may know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.
The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1a, or a part of the body, but are not limited thereto. The respective bodies shown in fig. 1a are examples, and the communication system may include all or part of the bodies in fig. 1a, or may include other bodies than fig. 1a, and the number and form of the respective bodies are arbitrary, and the connection relationship between the respective bodies is examples, and the respective bodies may not be connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.
The embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), upper 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air (New Radio, NR), future wireless access (Future Radio Access, FRA), new wireless access technology (New-Radio Access Technology, RAT), new wireless (New Radio, NR), new wireless access (New Radio access, NX), future generation wireless access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (registered trademark), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra WideBand (Ultra-wide bandwidth, UWB), bluetooth (Bluetooth) mobile communication network (Public Land Mobile Network, PLMN, device-D-Device, device-M, device-M, internet of things system, internet of things (internet of things), machine-2, device-M, device-M, internet of things (internet of things), system (internet of things), internet of things 2, device (internet of things), machine (internet of things), etc. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.
In some embodiments, the Sidelink link may support direct communication between UEs in a manner based on omni-directional antenna transmission and reception. In the Frequency Range2 (FR 2, frequency Range 2), coverage performance of the sidelink based on reception and transmission of the full-line antenna is limited, and in order to further enhance coverage performance of the UE, beam management in the sidelink needs to be studied in consideration of adopting beam-based reception and transmission. In the sidelink beam-based transmission, beam failure may be caused due to mobility of UE, shielding of a building or other reasons, and beam failure recovery is required.
In the related art, for example, in a New air interface (NR, new Radio) Uu interface, a triggering procedure of beam failure recovery is:
step a, the UE side measures the reference signal received power (RSRP ) of the corresponding reference signal;
step b, judging whether the measured RSRP is lower than a preset threshold of a higher layer, if so, the physical layer at the UE side sends a beam failure instance indication (beam failure instance indication) to a medium access control (MAC, media Access Control) layer, and a counter BFI_counter of the beam failure times is increased by 1;
step c, if the accumulated value of the bfi_counter is greater than the threshold of the higher-layer pre-configured counter in the pre-configured beam failure detection time: the beam failure instance maximum count value (beamfailureimxcount) triggers the beam failure recovery procedure.
In the related art, for example, in the NR Uu, if a periodic Channel State information reference signal (CSI-RS, channel-State-Information Reference Signal) is used for beam quality measurement, the base station sends the reference signal more stably and reliably, and the receiving end UE can calculate RSRP on the corresponding CSI-RS time-frequency resource. In the sidelink, if the beam failure recovery procedure in the sidelink is designed with reference to the concept in the NR Uu, the beam quality measurement is performed by using the periodic CSI-RS, and at some times when the CSI-RS needs to be periodically transmitted, since the transmitting UE has the following characteristics, it may not transmit the CSI-RS of the corresponding beam measurement in the following cases: 1. in a scenario with half duplex characteristics, data may not be transmitted in some transmission directions at some times, e.g., at the same time, downlink transmission is not possible when uplink transmission is performed; 2. other high priority data may be transmitted; 3. the resources for transmitting CSI-RS are occupied by other UEs.
For the receiving UE, it cannot know at which time the periodic CSI-RS time-frequency resources of the transmitting UE are occupied, and when the RSRP measured at the time when the CSI-RS time-frequency resources are occupied is lower than a preset threshold, it may misconsider that the RSRP is reduced due to the reduced link quality, so as to transmit beam failure instance indication to the MAC layer.
Referring to fig. 1b, if multiple time-frequency resources for periodically transmitting CSI-RS are occupied by the originating UE, the receiving UE transmits beam failure instance indication to the MAC layer multiple times, resulting in the bfi_counter exceeding the threshold, and false triggering of the beam failure recovery mechanism.
In summary, in the related art, the receiving UE cannot know at which time the periodic CSI-RS time-frequency resource of the transmitting UE is occupied, and the error measurement of the absent CSI-RS results in the false triggering of the beam failure recovery procedure, which may cause the error beam switching.
Fig. 2a is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 2a, an embodiment of the present disclosure relates to an information indication method for a communication system 100, the method comprising:
step S2101: the first terminal transmits first information to the second terminal.
In some embodiments, the second terminal receives the first information sent by the first terminal.
In some embodiments, the first information may be a feedback codebook.
In some embodiments, the first terminal and the second terminal are two ends of a sidelink communication.
In some embodiments, the first information indicates: the first terminal measures a measurement result obtained by the first terminal receiving a first reference signal on a first resource.
In some embodiments, the first information indicates: the first terminal measures a measurement result obtained by the first reference signal on the first resource.
Illustratively, the second terminal transmits a first reference signal to the first terminal; when the first terminal receives the first reference signal on the first resource, the first terminal may measure the radio transmission quality (for example, RSRP) of the first reference signal on the first resource, and the value corresponding to the measured radio transmission quality may be the measurement result.
In some embodiments, the first resource is a time-frequency resource, the time-frequency resource comprising a time-domain and/or frequency-domain resource. Illustratively, the first resource is a periodic resource, e.g., the first resource is a periodic CSI-RS time-frequency resource.
In some embodiments, the first resource is a time and/or frequency domain resource of the first terminal receiving the first reference signal on a beam.
In some embodiments, the beam may include a transmit beam and a receive beam, and in a scenario in which the second terminal communicates with the first terminal, if the second terminal transmits the first reference signal to the first terminal on the beam, the second terminal transmits the first reference signal to the first terminal on the transmit beam, and correspondingly, the first terminal may receive the first reference signal on the receive beam, which may occur in pairs.
In some embodiments, after the second terminal switches the transmission beam for transmitting the first reference signal, the first terminal may also adaptively switch the reception beam for receiving the first reference signal. For example, the first transmission beam and the first reception beam are beams that appear in pairs, and after the first transmission beam is switched to the second transmission beam, the first reception beam may also be switched to the second reception beam, where the first reception beam and the second reception beam are beams that appear in pairs.
In some embodiments, the time domain resource may be a system frame, a subframe, a slot (slot), or a symbol (symbol).
In some embodiments, the frequency domain Resource may be a system bandwidth, a Resource Block (RB), or a subcarrier.
In some embodiments, the first reference signal may be a CSI-RS.
In some embodiments, the first reference signal is transmitted on a first resource.
In some embodiments, the measurement result may include a result of measuring the obtained wireless transmission quality of the first reference signal.
In some embodiments, the wireless transmission quality may be one of:
RSRP;
reference signal received quality (RSRQ, reference Signal Receiving Quality);
Signal to interference plus noise ratio (SINR, signal to Interference plus Noise Ratio).
In some embodiments, the first information (or measurement result) and the second information are used for the second terminal to determine whether to switch or not switch the beam;
in some embodiments, the second information is a result of determining that the second terminal actually transmits the first reference signal on the first resource.
In some embodiments, the second information is used to determine whether a second terminal transmits the first reference signal on the first resource.
In some embodiments, in response to the first terminal detecting on the first resource for the 1 st time that the wireless transmission quality of the first reference signal is less than the first threshold, recording the wireless transmission quality for the 1 st time and/or the subsequent n times, and obtaining a measurement result; wherein n is an integer greater than or equal to 1.
In some embodiments, the first terminal reserves measurement results of the respective RSRP from detecting that the respective RSRP is below a preset threshold on the periodic CSI-RS time-frequency resource for the first time.
In some embodiments, the first terminal generates one feedback bit for each respective periodic CSI-RS time-frequency resource.
In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource. Illustratively, one first resource corresponds to one feedback bit.
In some embodiments, obtaining the measurement results may include: based on the corresponding detected wireless transmission quality on each first resource, a value of a feedback bit corresponding to each first resource is determined.
In some embodiments, it is determined that the wireless transmission quality is less than a first threshold, and the value of the feedback bit is determined to be a first value. Illustratively, the first value is 0.
In some embodiments, the wireless transmission quality is determined to be greater than or equal to a first threshold, and the feedback bit is determined to have a second value. Illustratively, the second value is 1.
In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is lower than a first threshold (thres), the feedback bit corresponding to the CSI-RS time-frequency resource is set to 0.
In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is higher than the first threshold, the feedback bit corresponding to the CSI-RS time-frequency resource is set to 1.
In some embodiments, the first information comprises a feedback codebook. The measurement result is indicated by feedback bits of the feedback codebook.
In some embodiments, the feedback bit corresponds to the first resource.
In some embodiments, the first terminal complements the feedback bits of the feedback codebook based on the feedback timing in response to determining that the second number of feedback bits contained in the feedback codebook is less than the third threshold.
In some embodiments, the number of feedback bits of the complemented feedback codebook is equal to a third threshold.
In some embodiments, the first terminal feeds back the completed feedback codebook on the feedback resource.
In some embodiments, referring to fig. 2b, the first terminal supplements feedback bits according to a feedback timing relationship of periodic CSI-RS resource pre-configuration, and sets the supplementary feedback bits to 1 entirely.
In some embodiments, for the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bit corresponding to the second resource is complemented into the feedback codebook; the second resource is the resource before the first resource corresponding to the first threshold value when the wireless transmission quality of the first reference signal is detected for the 1 st time.
In some embodiments, for the CSI-RS time-frequency resource before the first beam failure detection, if the feedback resource is the same as the feedback resource of the feedback codebook, the bit corresponding to the CSI-RS time-frequency resource is supplemented to the feedback codebook.
In some embodiments, for the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, the feedback bit corresponding to the third resource is complemented into the feedback codebook; the third resource is a resource after the count number of the beam failure instance (BFI, beam Failure Instance) counter is greater than the first resource corresponding to the fourth threshold.
In some embodiments, for the CSI-RS time-frequency resource after the bfi_counter is equal to the preset threshold, if the feedback resource is the same as the feedback resource of the feedback codebook, the feedback bit corresponding to the CSI-RS time-frequency resource is supplemented to the feedback codebook.
In some embodiments, the value of the bit for complement is set to a second value.
In some embodiments, the first terminal sends the first information to the second terminal in response to the count number of the BFI counter being greater than the fourth threshold.
In some embodiments, the first terminal transmits the first information to the second terminal through a beam failure recovery request message.
In some embodiments, according to the RSRP measurement result, when the bfi_counter exceeds the fourth threshold, the first terminal triggers a beam failure recovery mechanism, and sends a beam failure recovery request message carrying the first information to the second terminal on a corresponding feedback resource.
In some embodiments, please refer to fig. 2c, a feedback codebook is generated according to the measurement result corresponding to the CSI-RS time-frequency resource.
Step S2102: the second terminal determines whether to switch the beam.
In some embodiments, the second terminal determines whether to switch the beam based on the first information.
In some embodiments, the second terminal determines to switch or not to switch the beam based on the first information and second information that the second terminal actually transmits the first reference signal on the first resource.
In some embodiments, the beam for which the second terminal determines to switch or not may be the transmit beam.
In some embodiments, the first terminal may adaptively switch the receive beam after the second terminal switches the transmit beam. For example, at a first time, the second terminal transmits a first reference signal via a first transmit beam and the first terminal receives the first reference signal via a first receive beam. At the second moment, the second terminal switches the first transmission beam to transmit the first reference signal for the second transmission beam, and at this moment, the first terminal can adapt to the switching of the second terminal side beam and can switch to receive the first reference signal by adopting the second receiving beam adapting to the second transmission beam.
In some embodiments, based on the first information, it is determined whether the first resource is occupied by a signal other than the first reference signal.
In some embodiments, if the first resource is occupied by a signal other than the first reference signal, it is determined that the first reference signal is not actually transmitted on the first resource.
In some embodiments, a second number of first resources corresponding to a decrease in wireless transmission quality due to a decrease in beam quality is determined based on the first information and second information of the first reference signal that the second terminal actually transmits on the first resources.
In some embodiments, the wireless transmission quality corresponding to the first resource is less than a first threshold;
in some embodiments, the beam is determined to be switched or not switched based on the second number.
Referring to fig. 2d, the second number is 2.
In some embodiments, the first number is determined to be greater than or equal to a second threshold, and the handover beam is determined.
In some embodiments, it is determined that the first number is less than or equal to a second threshold and it is determined that the beam is not to be switched.
In some embodiments, the term "information" may be interchangeable with terms of "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", "data", etc.
In some embodiments, the term "send" may be interchangeable with terms of "transmit," "report," "transmit," and the like.
The information indicating method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2102. For example, step S2101 may be implemented as a separate embodiment and step S2102 may be implemented as a separate embodiment. For example, step S2101 in combination with step S2102 may be implemented as a separate embodiment, but is not limited thereto.
Fig. 3a is a flow chart illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 3a, an embodiment of the present disclosure relates to an information indication method, which is performed by a first terminal 101, the method comprising:
step S3101: and sending the first information.
In some embodiments, the optional implementation of step S3101 may refer to the optional implementation of step S2101 of fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.
In some embodiments, the first information is transmitted to the first terminal, but not limited thereto, and the first information may be transmitted to other subjects.
Fig. 3b is a flow chart illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 3b, an embodiment of the present disclosure relates to an information indication method, which is performed by a first terminal 101, the method comprising:
step S3201: transmitting first information;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on the beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In some embodiments, the first information is sent to the second terminal.
The first reference signal is a channel state information reference signal, CSI-RS.
In some embodiments, the method further comprises:
determining that the wireless transmission quality of the first reference signal detected on the first resource for the 1 st time is smaller than a first threshold value, and recording the wireless transmission quality of the 1 st time and/or the subsequent n times to obtain a measurement result;
wherein n is an integer greater than or equal to 1.
In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; obtaining a measurement result, comprising:
based on the corresponding detected wireless transmission quality on each first resource, a value of a feedback bit corresponding to each first resource is determined.
In some embodiments, determining the value of the feedback bit corresponding to each first resource based on the corresponding detected wireless transmission quality on each first resource includes at least one of:
determining that the wireless transmission quality is smaller than a first threshold value, and determining that the value of the feedback bit is a first value;
and determining that the wireless transmission quality is greater than or equal to a first threshold value, and determining that the value of the feedback bit is a second value.
In some embodiments, the measurement result is indicated by feedback bits of a feedback codebook, the feedback bits corresponding to the first resource; the method further comprises the steps of:
Determining that the second number of feedback bits contained in the feedback codebook is smaller than a third threshold value, and complementing the feedback bits of the feedback codebook based on a feedback time sequence;
wherein the number of feedback bits of the complemented feedback codebook is equal to a third threshold.
In some embodiments, the value of the bit for complement is set to a second value.
In some embodiments, the feedback bits of the feedback codebook are complemented based on the feedback timing, including at least one of:
for the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the second resource into the feedback codebook; the second resource is the resource before the first resource corresponding to the first threshold value when the wireless transmission quality of the first reference signal is detected for the 1 st time;
for the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the third resource into the feedback codebook; the third resource is a resource after the count number of the BFI counter of the beam failure instance is greater than the first resource corresponding to the fourth threshold.
In some embodiments, sending the first information to the second terminal includes:
And determining that the count number of the BFI counter is larger than a fourth threshold value, and sending the first information to the second terminal.
In some embodiments, sending the first information to the second terminal includes:
and sending the first information to the second terminal through the beam failure recovery request message.
Fig. 4a is a flow chart illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 4a, an embodiment of the present disclosure relates to an information indication method, which is performed by the second terminal 102, the method comprising:
step S4101: first information is acquired.
In some embodiments, the optional implementation of step S4101 may be referred to as an optional implementation of step S2101 in fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.
In some embodiments, the terminal receives the first information sent by the first terminal, but is not limited thereto, and may also receive the first information sent by other subjects.
In some embodiments, the second terminal obtains first information specified by the protocol.
In some embodiments, the second terminal acquires the first information from an upper layer(s).
In some embodiments, the second terminal processes to obtain the first information.
In some embodiments, step S3101 is omitted, and the second terminal autonomously implements the function indicated by the first information, or the above-mentioned function is default or default.
Step S4102: it is determined whether to switch beams.
In some embodiments, the optional implementation of step S4102 may refer to the optional implementation of step S2102 in fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.
The information indicating method according to the embodiment of the present disclosure may include at least one of step S4101 to step S4102. For example, step S4101 may be implemented as a separate embodiment, and step S4102 may be implemented as a separate embodiment. For example, step S4101 in combination with step S4102 may be implemented as a separate embodiment, but is not limited thereto.
Fig. 4b is a flow chart illustrating an information indication method according to an embodiment of the disclosure. As shown in fig. 4b, an embodiment of the present disclosure relates to an information indication method, which is performed by the second terminal 102, the method comprising:
step S4201: receiving first information, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time and/or frequency domain resource of the first terminal receiving the first reference signal on the beam.
In some embodiments, the optional implementation of step S4201 may refer to the optional implementation of step S2101 of fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.
Step S4202: based on the first information and the second information, a beam is determined to be switched or not switched.
In some embodiments, the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
In some embodiments, the optional implementation of step S4202 may refer to the optional implementation of step S2102 in fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.
In some embodiments, determining to switch or not switch the beam based on the first information and second information that the second terminal actually transmitted the first reference signal on the first resource comprises:
determining a second number of first resources corresponding to the degradation of the wireless transmission quality due to the degradation of the beam quality based on the first information and second information of the first reference signal actually transmitted by the second terminal on the first resources; the wireless transmission quality corresponding to the first resource is smaller than a first threshold value;
based on the second number, a beam is determined to be switched or not switched.
In some embodiments, based on the first number, a switched or non-switched beam is determined, including one of:
determining that the first number is greater than or equal to a second threshold, determining a handover beam;
it is determined that the first number is less than or equal to a second threshold and that the beam is not to be switched.
In some embodiments, the first reference signal is a channel state information reference signal, CSI-RS.
In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.
In some embodiments, at least one of the following is included:
the wireless transmission quality is smaller than a first threshold value, and the value of the feedback bit is a first value;
the wireless transmission quality is greater than or equal to a first threshold value, and the value of the feedback bit is a second value.
In some embodiments, the measurement result is indicated by feedback bits of a feedback codebook, the feedback bits corresponding to the first resource; the feedback bits of the feedback codebook are feedback bits which are complemented based on a feedback time sequence under the condition that the number of bits contained in the feedback codebook is smaller than a third threshold value; the number of feedback bits of the complemented feedback codebook is equal to the third threshold.
In some embodiments, the value of the complement bit is set to a second value.
In some embodiments, receiving the first information sent by the first terminal includes:
and receiving the first information sent by the first terminal through the beam failure recovery request message.
Fig. 5a is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 5a, an embodiment of the present disclosure relates to an information indication method for a communication system 100, the method comprising one of the following steps:
step S5101: the first terminal transmits first information to the second terminal.
In some embodiments, the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
Alternative implementations of step S5101 may refer to alternative implementations of step S2101 of fig. 2a and other relevant parts of the embodiment related to fig. 2a, which are not described here again.
Step S5102: the second terminal determines whether to switch the beam.
Alternative implementations of step S5102 may be referred to as alternative implementations of step S2102 in fig. 2a and other relevant parts in the embodiment related to fig. 2a, and will not be described here again.
In some embodiments, the method may include the method of the first terminal side, the second terminal side, and so on, which are not described herein.
Fig. 6a is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. As shown in fig. 6a, an embodiment of the present disclosure relates to an information indication method, which includes:
step S6101: and sending a feedback codebook.
In some embodiments, the feedback codebook may include first information in the present disclosure.
In some embodiments, the receiving UE (corresponding to the first terminal in the present disclosure) starts with detecting that the respective RSRP is below a preset threshold (corresponding to the first threshold in the present disclosure) on the periodic CSI-RS time-frequency resource (corresponding to the first resource in the present disclosure) for the first time, and reserves the measurement result of the respective RSRP.
In some embodiments, one feedback bit is generated on each corresponding periodic CSI-RS time-frequency resource:
in some embodiments, if the RSRP measured on the CSI-RS time frequency resource is lower than a preset threshold, the feedback bit is set to 0;
In some embodiments, if the RSRP measured on the CSI-RS time frequency resource is higher than a preset threshold, the feedback bit is set to 1;
in some embodiments, according to the RSRP measurement result, when the bfi_counter exceeds a preset threshold, the receiving UE triggers a beam failure recovery mechanism, sends a beam failure recovery request message to the originating UE on a corresponding feedback resource, and simultaneously sends a feedback codebook generated according to the measurement result on the CSI-RS time-frequency resource, where the feedback codebook may be carried in the beam failure recovery request message.
In some embodiments, to avoid ambiguity of understanding the feedback codebook by the transmitting UE and the receiving UE, the feedback codebook after the completion should be fed back on the corresponding feedback resource, the receiving UE supplements the following feedback bits according to the feedback timing relation preconfigured by the periodic CSI-RS resource, and sets all the feedback bits to 1.
In some embodiments, for the CSI-RS time-frequency resource before the first beam failure detection, if its feedback resource is the same as that of the feedback codebook, the feedback resource is supplemented to the feedback codebook;
in some embodiments, for CSI-RS time-frequency resources after bfi_counter equals a preset threshold, if their feedback resources are the same as those of the feedback codebook, they are added to the feedback codebook.
Step S6102: it is determined whether to switch beams.
In some embodiments, the transmitting UE (corresponding to the second terminal in the present disclosure) determines, according to the received feedback codebook, whether the corresponding CSI-RS time-frequency resource is occupied by other signals (ignoring the effect of the supplemental bits);
in some embodiments, the transmitting UE determines feedback bits that actually transmit CSI-RS and RSRP is below a threshold due to reduced beam quality;
in some embodiments, according to the feedback bit, the transmitting UE decides whether to perform beam switching.
In the embodiment of the disclosure, the receiving UE generates a feedback codebook according to the measurement result on the time-frequency resource of the corresponding beam measurement reference signal, and the transmitting UE determines whether to perform beam switching at this time according to the feedback codebook and the transmission condition of the actual beam failure reference signal, so as to solve the problem that the receiving UE cannot know at which time the periodic CSI-RS time-frequency resource of the transmitting UE is occupied, and the error measurement of the non-existent CSI-RS causes the error touch beam failure recovery procedure to perform the beam switching.
In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.
The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is also proposed, which includes a unit or module configured to implement steps performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.
In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, hardware circuits designed for artificial intelligence may be used, which may be understood as ASICs, such as neural network processing units (Neural Network Processing Unit, NPU), tensor processing units (Tensor Processing Unit, TPU), deep learning processing units (Deep learning Processing Unit, DPU), etc.
Fig. 7a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 7a, the terminal 7100 may include: at least one of a transceiver module 7101, a processing module 7102, and the like. In some embodiments, the transceiver module is configured to send or receive the first information. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., step S2101, step S3101, but not limited thereto) such as transmission and/or reception performed by the terminal 101 in any of the above methods, which is not described herein. Optionally, the processing module is configured to perform at least one of the other steps (e.g. step S2102, step S3102, but not limited to the above) performed by the terminal 101 in any of the above methods, which is not described herein.
In some embodiments, the transceiver module may include a transmitting module and/or a receiving module, which may be separate or integrated. Alternatively, the transceiver module may be interchangeable with a transceiver.
In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the plurality of sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Alternatively, the processing module may be interchanged with the processor.
Fig. 8a is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.
As shown in fig. 8a, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. The communication device 8100 is configured to perform any of the above methods.
In some embodiments, communication device 8100 also includes one or more memory 8102 for storing instructions. Alternatively, all or part of memory 8102 may be external to communication device 8100.
In some embodiments, communication device 8100 also includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps (e.g., step S2101, step S3101, but not limited thereto) of the above-described method, and the processor 8101 performs at least one of the other steps (e.g., step S2102, step S3102, but not limited thereto).
In some embodiments, the transceiver may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, etc. may be replaced with each other, terms such as transmitter, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
In some embodiments, communication device 8100 may include one or more interface circuits 8104. Optionally, an interface circuit 8104 is coupled to the memory 8102, the interface circuit 8104 being operable to receive signals from the memory 8102 or other device, and being operable to transmit signals to the memory 8102 or other device. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.
The communication device 8100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by fig. 8 a. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.
Fig. 8b is a schematic structural diagram of a chip 8200 according to an embodiment of the disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8b, but is not limited thereto.
The chip 8200 includes one or more processors 8201, the chip 8200 being configured to perform any of the above methods.
In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Optionally, an interface circuit 8202 is coupled to the memory 8203, the interface circuit 8202 may be configured to receive signals from the memory 8203 or other device, and the interface circuit 8202 may be configured to transmit signals to the memory 8203 or other device. For example, the interface circuit 8202 may read instructions stored in the memory 8203 and send the instructions to the processor 8201.
In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., but not limited to step S2101, step S3101) of the above-described method of transmitting and/or receiving, and the processor 8201 performs at least one of the other steps (e.g., but not limited to step S2102, step S3102).
In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc. may be interchanged.
In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memory 8203 may be external to the chip 8200.
The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.
The present disclosure also proposes a program product which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.
The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Claims (26)

1. An information indicating method, the method comprising:
receiving first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
2. The method of claim 1, wherein the determining to switch or not switch beams based on the first information and the second information comprises:
determining, based on the first information and the second information, a first number of the first resources corresponding to a decrease in wireless transmission quality due to a decrease in beam quality; the wireless transmission quality corresponding to the first resource is smaller than a first threshold value;
Based on the first number, a beam is determined to be switched or not switched.
3. The method of claim 2, wherein the determining to switch or not switch beams based on the first number comprises one of:
determining that the first number is greater than or equal to a second threshold, determining a handover beam;
determining that the first number is less than or equal to a second threshold and determining not to switch beams.
4. The method of claim 2, wherein the first reference signal is a channel state information reference signal, CSI-RS.
5. The method of claim 1, wherein the measurement result is indicated by a feedback bit corresponding to the first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.
6. The method of claim 5, comprising at least one of:
the wireless transmission quality is smaller than a first threshold value, and the value of the feedback bit is a first value;
the wireless transmission quality is greater than or equal to a first threshold value, and the value of the feedback bit is a second value.
7. The method of claim 1, wherein the measurement result is indicated by a feedback bit of a feedback codebook, the feedback bit corresponding to the first resource; the feedback bits of the feedback codebook are feedback bits which are complemented based on a feedback time sequence under the condition that the number of bits contained in the feedback codebook is smaller than a third threshold value; and the number of feedback bits of the feedback codebook after the complement is equal to the third threshold value.
8. The method of claim 7, wherein the value of the feedback bit that is completed is set to a second value.
9. The method of claim 1, wherein the receiving the first information sent by the first terminal comprises:
and receiving the first information sent by the first terminal through a beam failure recovery request message.
10. An information indicating method, the method comprising:
sending first information to a second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
11. The method of claim 10, wherein the first reference signal is a channel state information reference signal, CSI-RS.
12. The method according to claim 10, wherein the method further comprises:
determining that the wireless transmission quality of the first reference signal detected on the first resource for the 1 st time is smaller than a first threshold value, and recording the wireless transmission quality of the 1 st time and/or the subsequent n times to obtain the measurement result;
wherein n is an integer greater than or equal to 1.
13. The method of claim 12, wherein the measurement result is indicated by a feedback bit corresponding to the first resource; the obtaining the measurement result includes:
and determining the value of the feedback bit corresponding to each first resource based on the corresponding detected wireless transmission quality on each first resource.
14. The method of claim 13, wherein said determining the value of the feedback bit corresponding to each of the first resources based on the corresponding detected wireless transmission quality on each of the first resources comprises at least one of:
Determining that the wireless transmission quality is smaller than a first threshold value, and determining that the value of the feedback bit is a first value;
and determining that the wireless transmission quality is greater than or equal to a first threshold value, and determining that the value of the feedback bit is a second value.
15. The method of claim 12, wherein the measurement result is indicated by a feedback bit of a feedback codebook, the feedback bit corresponding to the first resource; the method further comprises the steps of:
determining that a second number of feedback bits contained in a feedback codebook is smaller than a third threshold value, and complementing the feedback bits of the feedback codebook based on a feedback time sequence;
and the number of the feedback bits of the feedback codebook after the completion is equal to the third threshold value.
16. The method of claim 15, wherein the feedback bit for complementing has a value set to a second value.
17. The method of claim 15, wherein the complementing feedback bits of the feedback codebook based on feedback timing comprises at least one of:
for a second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the second resource into the feedback codebook; the second resource is a resource before the first resource corresponding to the first threshold value, wherein the first resource is detected that the wireless transmission quality of the first reference signal is smaller than the first threshold value for the 1 st time;
For a third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, complementing the feedback bit corresponding to the third resource into the feedback codebook; the third resource is a resource after the count number of the BFI counter of the beam failure instance is greater than the first resource corresponding to the fourth threshold.
18. The method of claim 10, wherein the sending the first information to the second terminal comprises:
and determining that the count number of the BFI counter is larger than a fourth threshold value, and sending the first information to the second terminal.
19. The method of claim 10, wherein the sending the first information to the second terminal comprises:
and sending the first information to the second terminal through a beam failure recovery request message.
20. An information indicating method, the method comprising:
the first terminal sends first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch or not switch the wave beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
21. A terminal, the terminal comprising:
the receiving and transmitting module is configured to send first information to the second terminal;
wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam; the first information and the second information are used for the second terminal to determine whether to switch the beam; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
22. A terminal, the terminal comprising:
the transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the first terminal measures a measurement result obtained by a first reference signal received on a first resource; the first resource is a time domain and/or frequency domain resource for the first terminal to receive the first reference signal on a beam;
a processing module configured to: determining whether to switch or not switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.
23. A communication system, wherein the information indicating system comprises a first terminal and a second terminal; the first terminal is configured to implement the information indication method of any one of claims 1 to 10, and the second terminal is configured to implement the information indication method of any one of claims 11 to 19.
24. A terminal, the terminal comprising:
one or more processors;
wherein the terminal is configured to perform the information indication method of any one of claims 1 to 10.
25. A terminal, the terminal comprising:
one or more processors;
wherein the terminal is configured to perform the information indication method of any one of claims 11 to 19.
26. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information indication method of any one of claims 1 to 10, 11 to 19.
CN202380009745.1A 2023-06-21 2023-06-21 Information indicating method, terminal, communication system and storage medium Pending CN117015952A (en)

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Country Link
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