CN117596706A

CN117596706A - Communication method, terminal, network device, system and storage medium

Info

Publication number: CN117596706A
Application number: CN202410080377.6A
Authority: CN
Inventors: 江小威; 陈波; 刘敏
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2024-01-19
Filing date: 2024-01-19
Publication date: 2024-02-23

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a system, and a storage medium. The method comprises the following steps: transmitting auxiliary information to the network device, wherein the auxiliary information is used for indicating the network device to determine retransmission times of the first downlink access information according to the auxiliary information, and the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

Description

Communication method, terminal, network device, system and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communications method, a terminal, a network device, a system, and a storage medium.

Background

For NTN (Non-Terrestrial Network, non-terrestrial) networks, the problem of downlink coverage is more serious than that of TN (Terrestrial Network, terrestrial) networks due to the higher satellite-to-ground altitude, and an enhancement scheme of downlink coverage needs to be set to ensure the communication quality. The random access downlink information is used as one of the downlink messages, and under the application scene, the coverage problem exists, so that the random access of the terminal is blocked, and the communication performance of the terminal is affected.

Disclosure of Invention

In order to overcome the downlink coverage problem of random access information in the related art, the disclosure provides a communication method, a terminal, a network device, a system and a storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a communication method performed by a terminal, the method comprising:

transmitting auxiliary information to a network device, where the auxiliary information is used to instruct the network device to determine retransmission times of first downlink access information according to the auxiliary information, and the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

According to a second aspect of embodiments of the present disclosure, there is provided a communication method performed by a network device, the method comprising:

receiving auxiliary information sent by a terminal;

and determining retransmission times of the first downlink access information according to the auxiliary information, wherein the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

According to a third aspect of embodiments of the present disclosure, there is provided a communication method, the method comprising:

The terminal sends auxiliary information to the network equipment;

the network device determines retransmission times of first downlink access information according to the auxiliary information, wherein the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal comprising:

the network device comprises a receiving and transmitting module configured to send auxiliary information to a network device, wherein the auxiliary information is used for indicating the network device to determine retransmission times of first downlink access information according to the auxiliary information, and the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

According to a fifth aspect of embodiments of the present disclosure, there is provided a network device comprising:

the receiving and transmitting module is configured to receive auxiliary information sent by the terminal;

the processing module is configured to determine the retransmission times of the first downlink access information according to the auxiliary information, wherein the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

According to a sixth aspect of embodiments of the present disclosure, there is provided a terminal, comprising:

one or more processors;

wherein the terminal is configured to perform the communication method according to any one of the first aspects of the present disclosure.

According to a seventh aspect of embodiments of the present disclosure, there is provided a network device comprising:

one or more processors;

wherein the network device is configured to perform the communication method of any one of the second aspects of the present disclosure.

According to an eighth aspect of embodiments of the present disclosure, there is provided a communication system comprising a terminal configured to implement the communication method of any one of the first aspects of the present disclosure and a network device configured to implement the communication method of any one of the second aspects of the present disclosure.

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 first aspect of the present disclosure or cause the communication device to perform the communication method according to any one of the second aspects of the present disclosure.

In the above technical solution, auxiliary information is sent to a network device, where the auxiliary information is used to instruct the network device to determine retransmission times of first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following description of the embodiments refers to the accompanying drawings, which are only some embodiments of the present disclosure, and do not limit the protection scope of the present disclosure in any way.

Fig. 1 is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure.

Fig. 2 is an interactive schematic diagram of a communication method shown in accordance with an embodiment of the present disclosure.

Fig. 3 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure.

Fig. 4 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure.

Fig. 5 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of a chip 8200 according to an embodiment of the present disclosure.

Detailed Description

The embodiment of the disclosure provides a communication method, a terminal, network equipment, a system and a storage medium.

In a first aspect, an embodiment of the present disclosure proposes a communication method, performed by a terminal, the method including:

By the above scheme, the auxiliary information is sent to the network device, and the auxiliary information is used for indicating the network device to determine the retransmission times of the first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

With reference to some embodiments of the first aspect, the first downlink access information is applicable to a terrestrial network TN cell or a non-terrestrial network NTN cell.

With reference to some embodiments of the first aspect, the terminal includes an idle state terminal, an inactive state terminal, or a connection state terminal.

In combination with some embodiments of the first aspect, the number of retransmissions includes a number of physical downlink control channel PDCCH retransmissions and/or a number of physical downlink shared channel PDSCH retransmissions.

With reference to some embodiments of the first aspect, the auxiliary information includes at least one of:

the first information is used for indicating the downlink signal quality of the terminal;

suggesting retransmission times;

capability information, where the capability information is used to indicate whether the terminal supports retransmission of the first downlink access information.

With reference to some embodiments of the first aspect, the downlink signal quality includes a channel quality indicator CQI or a reference signal received power RSRP.

With reference to some embodiments of the first aspect, the first downlink access information includes the Msg2 and the Msg4, and the recommended number of retransmissions includes a first number of retransmissions of the Msg2 and a second number of retransmissions of the Msg 4.

With reference to some embodiments of the first aspect, the auxiliary information includes the first information, and the sending auxiliary information to the network device includes:

determining the first information;

and determining that the first information is lower than a first threshold value and the terminal supports retransmission of the first downlink access information, and sending the auxiliary information to the network equipment.

With reference to some embodiments of the first aspect, the sending auxiliary information to the network device includes:

determining the first information;

determining a first report value corresponding to the first information;

and sending the auxiliary information to the network equipment, wherein the auxiliary information comprises the first report value.

With reference to some embodiments of the first aspect, the determining a first report value corresponding to the first information includes:

determining a first index value of a value interval in which the first information is located;

and determining the first index value as the report value.

With reference to some embodiments of the first aspect, the determining a first index value of a value interval in which the first information is located includes:

receiving first configuration information sent by the network equipment, wherein the first configuration information is used for indicating a mapping relation between the first information and a first index value;

and determining the first index value according to the first configuration information and the first information.

determining the first index value according to a protocol and the first information;

the protocol specifies a mapping between the first information and the first index value.

determining the first information;

and sending the auxiliary information to the network equipment, wherein the auxiliary information does not comprise the downlink signal quality, and the first index value is an index of a value interval in which the first information is located.

determining the first information;

determining a recommended number of retransmissions of the first information;

determining a second report value corresponding to the suggested retransmission times;

and sending the auxiliary information to the network equipment, wherein the auxiliary information comprises the second report value.

With reference to some embodiments of the first aspect, the determining a second report value corresponding to the proposed retransmission number includes:

receiving second configuration information sent by the network equipment, wherein the second configuration information is used for indicating a mapping relation between the recommended retransmission times and a second report value;

and determining the second report value according to the second configuration information and the suggested retransmission times.

determining the second report value according to the protocol and the suggested retransmission times;

the protocol agrees with a mapping relationship between the number of recommended retransmissions and the second reported value.

determining a mapping relation between the plurality of suggested retransmission times and a plurality of second report values;

and determining the second report value according to the mapping relation and the suggested retransmission times.

determining the first information;

determining the recommended retransmission times of the first downlink access information according to the first information;

and determining that the mapping relation between the recommended retransmission times and a second reporting value does not exist, and sending the auxiliary information to the network equipment, wherein the recommended retransmission times are not included in the auxiliary information, and the second reporting value is an index of a value interval in which the recommended retransmission times are located.

and sending the auxiliary information to the network equipment through contention random access request information Msg1 or non-contention random access request information MsgA.

determining a first physical random access channel PRACH resource according to the first report value;

and sending the auxiliary information to the network equipment through the first PRACH resource.

determining a first physical random access channel PRACH resource according to the second report value;

With reference to some embodiments of the first aspect, the first downlink access information includes the Msg4, and the sending auxiliary information to the network device includes:

and sending the auxiliary information to the network equipment through connection request information Msg3, wherein the auxiliary information is used for indicating the network equipment to determine the retransmission times of the Msg4 according to the auxiliary information.

With reference to some embodiments of the first aspect, the sending the auxiliary information to the network device through connection request information Msg3 includes:

and sending the Msg3 to the network equipment, wherein the Msg3 comprises MAC element information, and the MAC element information is used for indicating a first report value.

and sending RRC information to the network equipment, wherein the RRC information comprises the auxiliary information.

With reference to some embodiments of the first aspect, the method further includes:

and receiving third configuration information sent by the network equipment, wherein the third configuration information is used for indicating whether the network equipment supports the terminal to send the auxiliary information.

receiving trigger threshold configuration information sent by the network equipment;

and generating the auxiliary information according to the trigger threshold configuration information.

With reference to some embodiments of the first aspect, the trigger threshold configuration information includes a downlink signal quality threshold, and the sending auxiliary information to the network device includes:

receiving trigger threshold configuration information sent by the network equipment, wherein the trigger threshold configuration information comprises a downlink signal quality threshold;

And determining that the quality of the downlink signal in the terminal is smaller than the quality threshold of the downlink signal, and sending the auxiliary information to the network equipment through Msg1, msg3 or MsgA of a random access channel RACH.

and receiving fourth configuration information sent by the network equipment, wherein the fourth configuration information is used for indicating the mapping relation between a plurality of trigger threshold configurations and a plurality of suggested retransmission times.

With reference to some embodiments of the first aspect, the auxiliary information includes a recommended number of retransmissions, and the sending the auxiliary information to the network device includes:

determining the downlink signal quality of the terminal;

determining the recommended retransmission times according to the downlink signal quality and the fourth configuration information;

and sending the recommended retransmission times to the network equipment.

receiving scheduling information sent by the network equipment, wherein the scheduling information is used for scheduling the first downlink access information;

and determining the retransmission times of the first downlink access information according to the scheduling information.

And receiving fifth configuration information sent by the network equipment, wherein the fifth configuration information is used for indicating the retransmission times of the first downlink access information supported by the network equipment.

In a second aspect, embodiments of the present disclosure propose a communication method performed by a network device, the method comprising:

receiving auxiliary information sent by a terminal;

With reference to some embodiments of the second aspect, the number of retransmissions includes a number of physical downlink control channel PDCCH retransmissions and/or a number of physical downlink shared channel PDSCH retransmissions.

With reference to some embodiments of the second aspect, the auxiliary information includes at least one of:

suggesting retransmission times;

With reference to some embodiments of the second aspect, the downlink signal quality includes a channel quality indicator CQI or a reference signal received power RSRP.

With reference to some embodiments of the second aspect, the method further includes:

and sending first configuration information to the terminal, wherein the first configuration information is used for indicating the mapping relation between the first information and the first index value.

and sending second configuration information to the terminal, wherein the second configuration information is used for indicating the mapping relation between the recommended retransmission times and a second reporting value.

and sending third configuration information to the terminal, wherein the third configuration information is used for indicating whether the network equipment supports the terminal to send the auxiliary information.

and sending trigger threshold configuration information to the terminal, wherein the trigger threshold configuration information is used for indicating the terminal to generate the auxiliary information according to the trigger threshold configuration information.

And sending fourth configuration information, wherein the fourth configuration information is used for indicating the mapping relation between the plurality of trigger threshold configurations and the plurality of suggested retransmission times.

and sending scheduling information to the terminal, wherein the scheduling information is used for scheduling the first downlink access information, and the scheduling information is used for indicating the terminal to determine the retransmission times of the first downlink access information according to the scheduling information.

and sending fifth configuration information to the terminal, wherein the fifth configuration information is used for indicating the retransmission times of the first downlink access information supported by the network equipment.

In a third aspect, embodiments of the present disclosure provide a communication method, the method including:

the terminal sends auxiliary information to the network equipment;

In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

the first transceiver module is configured to send auxiliary information to the network device, wherein the auxiliary information is used for indicating the network device to determine retransmission times of first downlink access information according to the auxiliary information, and the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

In a fifth aspect, embodiments of the present disclosure provide a network device, including:

the second transceiver module is configured to receive auxiliary information sent by the terminal;

the first processing module is configured to determine the retransmission times of first downlink access information according to the auxiliary information, wherein the first downlink access information comprises: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

In a sixth aspect, an embodiment of the present disclosure provides a terminal, including:

one or more processors;

In a seventh aspect, embodiments of the present disclosure provide a network device, including:

One or more processors;

In an eighth aspect, an embodiment of the present disclosure provides a communication system, including a terminal configured to implement the communication method of any one of the first aspects of the present disclosure, and a network device configured to implement the communication method of any one of the second aspects of the present disclosure.

In a ninth aspect, the presently disclosed embodiments provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of the first aspects of the present disclosure or cause the communication device to perform the communication method of any one of the second aspects of the present disclosure.

By the above manner, the terminal sends the auxiliary information to the network device, where the auxiliary information is used to instruct the network device to determine the retransmission times of the first downlink access information according to the auxiliary information, and the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

The embodiment of the disclosure provides a communication method, a terminal, network equipment, a system and a storage medium. In some embodiments, terms of a communication method and an information processing method, a communication method, and the like may be replaced with each other, terms of a communication device and an information processing device, a communication device, and the like may be replaced with each other, and terms of an information processing system, a communication 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 such as "time/frequency", "time-frequency domain", and the like refer to the time domain and/or the frequency domain.

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, an apparatus or the like may be interpreted as an entity, or may be interpreted as a virtual, and the names thereof are not limited to the names described in the embodiments, "apparatus," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip system," "entity," "body," and the like may be replaced with each other.

In some embodiments, a "network" may be interpreted as an apparatus (e.g., access network device, core network device, etc.) contained in a network.

In some embodiments, "access network device (access network device, AN device)", "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmit point (transmission point, TP)", "Receive Point (RP)", "transmit and/or receive point (transmit/receive point), the terms TRP)", "panel", "antenna array", "cell", "macrocell", "microcell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", bandwidth part (BWP) and the like may be replaced with each other.

In some embodiments, "terminal," terminal device, "" user equipment, "" user terminal, "" mobile station, "" mobile terminal, MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscriber unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (wireless device), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (access terminal), mobile terminal (mobile terminal), wireless terminal (wireless terminal), remote terminal (remote terminal), handheld device (handset), user agent (user agent), mobile client (mobile client), client (client), and the like may be substituted for each other.

In some embodiments, the access network device, core network device, or network device may be replaced with a terminal. For example, the embodiments of the present disclosure may also be applied to a configuration in which an access network device, a core network device, or communication between a network device and a terminal is replaced with communication between a plurality of terminals (for example, device-to-device (D2D), vehicle-to-device (V2X), or the like). In this case, the terminal may have all or part of the functions of the access network device. In addition, terms such as "uplink", "downlink", and the like may be replaced with terms corresponding to communication between terminals (e.g., "side)". For example, uplink channels, downlink channels, etc. may be replaced with side-uplink channels, uplink, downlink, etc. may be replaced with side-downlink channels.

In some embodiments, the terminal may be replaced with an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have all or part of the functions of the terminal.

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. 1 is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure. As shown in fig. 1, the communication system 100 includes a terminal (terminal) 101 and a network device 102.

In some embodiments, the terminal 101 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 wireless transceiver enabled computer, 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 network device 102 is, for example, a node or 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 evolved 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.

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 can 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. 1, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1 are examples, and the communication system may include all or part of the bodies in fig. 1, or may include other bodies than fig. 1, and the number and form of the respective bodies may be arbitrary, and the respective bodies may be physical or virtual, 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, in order to improve downlink coverage of Msg2/Msg4/MsgB in the random access procedure in the related art, downlink coverage performance may be improved by repeating transmission of Msg2/Msg 4/MsgB. In order to facilitate the network to determine the number of repeated transmissions of Msg2/Msg4/MsgB, the terminal needs to report auxiliary information to assist the network in determining the number of repeated transmissions of Msg2/Msg4/MsgB during communication.

Fig. 2 is an interactive schematic diagram of a communication method shown in accordance with an embodiment of the present disclosure. As shown in fig. 2, an embodiment of the present disclosure relates to a communication method, which is performed by a terminal and a network device, the method including:

in step S2101, the terminal transmits auxiliary information.

In some embodiments, the auxiliary information is used for indicating the network device to determine the retransmission times of the first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

In some embodiments, the assistance information is received by the network device and the number of retransmissions of the first downlink access information is determined from the assistance information.

In some embodiments, the auxiliary information may also be referred to as "indication information", "retransmission information", "auxiliary retransmission information", "retransmission indication information", "access retransmission information", and other names, which are not limited in this embodiment.

For example, in this embodiment, the auxiliary information is applicable to a contention random access procedure or a non-contention random access procedure of the terminal, and when the terminal needs to access the network communication system, the auxiliary information assists the network device to determine the retransmission times of the first downlink access information, where the first downlink access information includes at least one of Msg2, msg4, and MsgB.

In some embodiments, the first downlink access information is applicable to a terrestrial network TN cell or a non-terrestrial network NTN cell. For example, the communication system formed by the terminal and the network device in this embodiment may be a TN communication system, where the corresponding first downlink access information is applicable to a TN cell; the communication system formed by the terminal and the network device may also be an NTN communication system, where the corresponding first downlink access information is applicable to an NTN cell.

In some embodiments, the number of retransmissions includes a number of physical downlink control channel PDCCH retransmissions and/or a number of physical downlink shared channel PDSCH retransmissions. For example, the number of retransmissions of the first downlink access information in this embodiment includes a first downlink access information PDCCH retransmission and/or a first downlink access information PDSCH retransmission.

In some embodiments, the terminal comprises an idle state terminal, an inactive state terminal, or a connected state terminal. By way of example, the terminal in this embodiment may be any one of an idle (idle state) terminal, an inactive (dropped state) terminal, and a connected (connected state) terminal. I.e. the terminal in this embodiment is a terminal device in any state.

In some embodiments, the auxiliary information includes at least one of:

suggesting retransmission times;

capability information, the capability information is used for indicating whether the terminal supports retransmission of the first downlink access information.

For example, the auxiliary information reported by the terminal in this embodiment may be at least one of downlink signal quality, a recommended retransmission number of the first downlink access information, and capability information corresponding to the terminal. The capability information is used for indicating whether the terminal supports retransmission of the first downlink access information in the communication process.

In some embodiments, the downlink signal quality comprises a channel quality indication CQI or a reference signal received power RSRP. For example, in this embodiment, the downlink signal quality of the terminal may be indicated by CQI information or RSRP information.

In some embodiments, the first downlink access information includes Msg2 and Msg4, and the recommended number of retransmissions includes a first number of retransmissions for Msg2 and a second number of retransmissions for Msg 4. For example, in this embodiment, the first downlink access information includes Msg2 and Msg4, and the recommended retransmission times include a first retransmission times of Msg2 and a second retransmission times of Msg4, that is, when the auxiliary information includes the recommended retransmission times in this application, the retransmission times of Msg2 and Msg4 may be reported respectively, where the first retransmission times and the second retransmission times may be the same or different.

In some embodiments, step S2101 described above includes:

determining first information;

and determining that the first information is lower than a first threshold value, and the terminal supports retransmission of the first downlink access information, and sending auxiliary information to the network equipment.

In this embodiment, for example, a first threshold value of the downlink signal quality corresponding to the first information is specified in the terminal, the terminal monitors the downlink signal quality in real time, and if it is determined that the downlink signal quality is lower than the first threshold value and the terminal supports retransmission of the first downlink access signal, auxiliary information is sent to the network device,

in some embodiments, step S2101 described above includes:

determining first information;

determining a first report value corresponding to the first information;

and sending auxiliary information to the network equipment, wherein the auxiliary information comprises a first report value.

For example, in this embodiment, the auxiliary information includes a first report value corresponding to the downlink signal quality in the first information, and the downlink signal quality in the terminal is sent to the network device through the report value. The terminal is configured with a mapping relation between a plurality of downlink signal quality and a plurality of first reporting values, and the corresponding first reporting values are determined according to the downlink signal quality. And carrying the first report value in the auxiliary information, and determining the downlink signal quality of the terminal by the network equipment according to the first report value in the auxiliary information. In this embodiment, the bit value corresponding to the downlink signal quality is larger, and occupies a larger number of bits in the communication transmission process, and is easy to be distorted, so that an operational relationship between the downlink signal quality and the reporting value can be established in the communication system, the downlink signal quality is converted into a corresponding index value, and the index value is reported through auxiliary information. And the network equipment determines the downlink signal quality corresponding to the index value based on the mapping relation, and determines the retransmission times of the first downlink access information according to the downlink signal quality.

In some embodiments, step S2101 described above includes:

and determining the first index value as a first report value.

In this embodiment, the downlink signal quality corresponding to the current first information of the terminal is determined, the terminal maps the downlink signal quality to a plurality of value intervals, numbers the value intervals, represents the value intervals corresponding to different downlink signal quality by a plurality of index values, determines a first index value of the value interval where the downlink signal quality is located according to the mapping relation, and reports the first index value by auxiliary information. For example, the downlink signal quality is mapped to the range of [ < -5], [ -5,0], [0,5], [5, 10], [ > 10], and each value interval corresponds to a, b, c, d, e and 5 index values respectively, the index value of the value interval corresponding to the current downlink signal quality is determined, and the index value is reported to the index value network equipment.

In some embodiments, the step of determining the first report value corresponding to the downlink signal quality includes:

receiving first configuration information sent by network equipment, wherein the first configuration information is used for indicating a mapping relation between the first information and a first report value;

And determining a first report value according to the first configuration information and the first information.

For example, in this embodiment, the first configuration information sent by the network device indicates a mapping relationship between the downlink signal quality and the first reported value in the first information. The terminal may determine, from the first configuration information, a first report value that matches the downlink signal quality corresponding to the first information.

In some embodiments, the step of determining the first index value of the value interval in which the first information is located includes:

determining a first index value according to the protocol and the first information;

In this embodiment, a mapping relationship between a plurality of downlink signal qualities and a plurality of first reporting values is indicated by first protocol information between a terminal and a network device, and the terminal determines the first reporting value according to the first protocol information and the downlink signal quality.

In some embodiments, the step of "sending auxiliary information to the network device" includes:

determining the quality of a downlink signal in a terminal;

and determining that the downlink signal quality is not matched with the mapping relation, and sending auxiliary information to the network equipment, wherein the auxiliary information does not comprise the downlink signal quality, and the mapping relation is a corresponding relation between a plurality of downlink signal qualities and a plurality of first reporting values.

For example, in this embodiment, a mapping relationship between a plurality of downlink signal qualities and a plurality of first reporting values is determined, and when the downlink signal quality detected by the terminal is not any one of the plurality of downlink signal qualities, the downlink signal quality is not reported in the auxiliary information. I.e. if the current downlink signal quality is not within the value range specified by any configuration information or protocol, the downlink signal quality is not reported. For example, in some embodiments, if the downlink signal quality is not within the specified range, the recommended number of retransmissions of the first downlink access information is not reported.

In some embodiments, step S2101 described above includes:

determining first information;

according to the recommended retransmission times of the first information;

determining a second report value corresponding to the recommended retransmission times;

and sending auxiliary information to the network equipment, wherein the auxiliary information comprises a second report value.

For example, in this embodiment, a mapping relationship between the number of retransmission suggestions and the second report value is configured in the terminal, and the terminal determines the number of retransmission suggestions of the first downlink access information according to the current downlink signal quality. And determining a second report value corresponding to the recommended retransmission times according to the mapping relation, reporting the second report value to the network equipment, and determining the corresponding recommended retransmission times by the network equipment according to the second report value and the mapping relation. In this embodiment, in order to improve portability and clarity of the auxiliary information, the number of recommended retransmissions is mapped to a second report value, and the corresponding number of recommended retransmissions is represented by reporting the second report value.

In some embodiments, the determining the second report value corresponding to the number of recommended retransmissions includes:

and determining a second report value according to the second configuration information and the suggested retransmission times.

In this embodiment, the mapping relationship between the plurality of recommended retransmission times and the plurality of second reporting values is indicated by sending second configuration information through the network device, and the second reporting value corresponding to the recommended retransmission times is determined according to the second configuration information. In this embodiment, the manner of determining the second report value according to the second configuration information is the same as the manner of determining the first report value according to the first configuration information in the above embodiment, and reference may be made to the above embodiment, which is not repeated herein.

determining a second report value according to the protocol and the suggested retransmission times;

the protocol agrees with the mapping relationship between the number of recommended retransmissions and the second reported value.

For example, in this embodiment, the mapping relationship between the number of recommended retransmissions and the second reporting value is indicated according to the protocol information, and the terminal may determine the second reporting value corresponding to the number of recommended retransmissions according to the protocol information.

and determining a second report value according to the mapping relation and the suggested retransmission times.

For example, in this embodiment, the terminal may further determine a mapping relationship between the plurality of recommended retransmission times and the plurality of second reporting values by itself, and determine a second reporting value corresponding to the current recommended retransmission times according to the mapping relationship.

In some embodiments, step S2101 described above includes:

determining first information;

For example, in this embodiment, the value interval corresponding to the downlink signal quality in the foregoing embodiment is the same, and if the number of recommended retransmissions determined by the terminal according to the downlink signal quality is no longer within the value interval range of the specified number of retransmissions, the current recommended number of retransmissions of the terminal is no longer reported by the auxiliary information when the auxiliary information is sent.

In some embodiments, step S2101 described above includes:

the auxiliary information is transmitted to the network device through the contention random access request information Msg1 or the non-contention random access request information MsgA.

For example, in this embodiment, if the random access procedure of the terminal is a contention random access procedure, the Msg1 information may carry the auxiliary information and report the auxiliary information to the network device; if the random access process of the terminal is a non-competitive random access process, auxiliary information is carried in the MsgA information to the network equipment.

In some embodiments, step S2101 described above includes:

and sending auxiliary information to the network equipment through the first PRACH resource.

For example, in this embodiment, a mapping relationship between the first reporting value and the PRACH resource may be established in the communication system, the auxiliary information is sent through the corresponding PRACH resource, and the network device may determine the corresponding first reporting value according to the PRACH resource corresponding to the received auxiliary information.

In some embodiments, step S2101 described above includes:

For example, in this embodiment, a mapping relationship between the second reporting value and the PRACH resource may be established in the communication system, the auxiliary information is sent through the corresponding PRACH resource, and the network device may determine the corresponding second reporting value according to the PRACH resource corresponding to the received auxiliary information.

In some embodiments, the first downlink access information includes Msg4, and step S2101 includes:

and sending auxiliary information to the network equipment through the connection request information Msg3, wherein the auxiliary information is used for indicating the network equipment to determine the retransmission times of Msg4 according to the auxiliary information.

In this embodiment, for example, the auxiliary information is reported through the Msg3, where the auxiliary information is used to instruct the network device to determine the retransmission times of the Msg4 according to the auxiliary information.

In some embodiments, the step of "passing connection request information Msg3" includes:

and transmitting Msg3 to the network equipment, wherein the Msg3 comprises MAC element information, and the MAC element information is used for indicating the first report value.

For example, in this embodiment, the first report value corresponding to the downlink signal quality may be indicated by the MAC element information carried on Msg 3.

In some embodiments, step S2101 described above includes:

and transmitting RRC information to the network device, the RRC information including the auxiliary information.

For example, the assistance information may be reported to the network device through RRC information, where the RRC information includes UE capability reporting information, UE assistance information, and the like.

In some embodiments, before step S2101 above, the method further comprises:

and receiving third configuration information sent by the network equipment, wherein the third configuration information is used for indicating whether the network equipment supports the terminal to send auxiliary information.

For example, before the terminal reports the auxiliary information, the network device indicates, through the third configuration information, whether the network device supports the terminal to send the auxiliary information. And when the terminal determines that the network equipment supports the terminal to send the auxiliary information according to the third configuration information, the terminal reports the auxiliary information.

In some embodiments, the method further comprises:

receiving trigger threshold configuration information sent by network equipment;

and generating auxiliary information according to the trigger threshold configuration information.

For example, the network device sends trigger threshold configuration information, and the terminal may determine whether to generate auxiliary information according to the trigger threshold configuration information. The trigger threshold configuration information is used for indicating a threshold value for triggering reporting auxiliary information in the terminal, the trigger threshold can be a threshold value of downlink signal quality, and when the downlink signal quality is lower than the trigger threshold value, the terminal generates the auxiliary information according to the downlink signal quality.

In some embodiments, the trigger threshold configuration information includes a downlink signal quality threshold, and step S2101 includes:

and determining that the quality of the downlink signal in the terminal is smaller than a downlink signal quality threshold, and sending auxiliary information to the network equipment through Msg1, msg3 or MsgA of a random access channel RACH.

For example, when the terminal determines that the downlink signal quality is less than the downlink signal quality threshold, the auxiliary information is sent to the network device through Msg1, msg3 and/or MsgA in the RACH resource.

In some embodiments, the method further comprises:

and receiving fourth configuration information sent by the network equipment, wherein the fourth configuration information is used for indicating the mapping relation between the plurality of trigger threshold configurations and the plurality of suggested retransmission times.

For example, the network device sends configuration information to configure a mapping relationship between the configuration of the plurality of trigger thresholds and the plurality of recommended retransmission times, and the terminal determines the corresponding recommended retransmission times according to the trigger threshold where the current downlink signal quality is located and reports the recommended retransmission times.

In some embodiments, the auxiliary information includes a recommended retransmission number, and step S2101 includes:

determining the downlink signal quality of a terminal;

And sending the recommended retransmission times to the network equipment.

For example, the terminal determines the current downlink signal quality, and determines the number of retransmission suggestions according to the downlink signal quality and the fourth configuration information configured by the network device in the above embodiment. And transmitting the suggested number of retransmissions to the network device.

In step S2102, the network device determines the number of retransmissions of the first downlink access information according to the auxiliary information.

For example, after receiving the auxiliary information sent by the terminal, the network device determines the retransmission times of the first downlink access information according to the auxiliary information. In this embodiment, the network device may determine, according to the auxiliary information, coverage performance of the first downlink access information in the terminal. If the coverage performance is poor according to the auxiliary information, the access coverage performance of the downlink access information of the terminal is ensured by adopting more retransmission times.

In some embodiments, after step S2102, the method further includes:

the terminal receives scheduling information sent by network equipment, wherein the scheduling information is used for scheduling first downlink access information;

and the terminal determines the retransmission times of the first downlink access information according to the scheduling information.

For example, after determining the number of retransmissions of the first downlink access information, the network device indicates the number of retransmissions to the terminal through the scheduling information. Wherein the scheduling information may be used for scheduling the first downlink access information.

In some embodiments, before step S2101, the method further includes:

For example, before the terminal reports the auxiliary information, the terminal receives fifth configuration information sent by the network device, where the fifth configuration information is used to indicate the number of retransmissions of the first downlink access information supported in the network device, that is, the retransmission capability of the first downlink access information supported in the network device is indicated to the terminal in the fifth configuration information.

In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "instruction", "command", "channel", "parameter", "field", "symbol", "codebook", "code word", "code point", "bit", "data", "program", "chip", and the like may be replaced with each other.

In some embodiments, the terms "codebook", "codeword", "precoding matrix" and the like may be interchanged. For example, a codebook may be a collection of one or more codewords/precoding matrices.

In some embodiments, terms such as "uplink," "physical uplink," and the like may be interchanged, terms such as "downlink," "physical downlink," and the like may be interchanged, terms such as "side," "side link," "side communication," "side link," "direct link," and the like may be interchanged.

In some embodiments, terms such as "downlink control information (downlink control information, DCI)", "Downlink (DL) assignment", "DL DCI", "Uplink (UL) grant", "UL DCI", and the like may be replaced with each other.

In some embodiments, terms of "physical downlink shared channel (physical downlink shared channel, PDSCH)", "DL data", etc. may be interchanged, and terms of "physical uplink shared channel (physical uplink shared channel, PUSCH)", "UL data", etc. may be interchanged.

In some embodiments, terms such as "radio," "wireless," "radio access network," "RAN," and "RAN-based," may be used interchangeably.

In some embodiments, terms of "synchronization signal (synchronization signal, SS)", "synchronization signal block (synchronization signal block, SSB)", "Reference Signal (RS)", "pilot signal", and the like may be replaced with each other.

In some embodiments, terms such as "time of day," "point of time," "time location," and the like may be interchanged, and terms such as "duration," "period," "time window," "time," and the like may be interchanged.

In some embodiments, terms of "component carrier (component carrier, CC)", "cell", "frequency carrier (frequency carrier)", "carrier frequency (carrier frequency)", and the like may be interchanged.

In some embodiments, terms such as "Resource Block (RB)", "physical resource block (physical resource block, PRB)", "subcarrier group (SCG)", "resource element group (resource element group, REG)", "PRB pair", "RB pair", "Resource Element (RE)", "subcarrier (sub-carrier)", and the like may be substituted for each other.

In some embodiments, "acquire," "obtain," "receive," "transmit," "bi-directional transmit," "send and/or receive" may be used interchangeably and may be interpreted as receiving from other principals, acquiring from protocols, acquiring from higher layers, processing itself, autonomous implementation, etc.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "bi-directional," "send and/or receive," and the like may be used interchangeably.

In some embodiments, terms such as "specific (specific)", "predetermined", "preset", "set", "indicated", "certain", "arbitrary", "first", and the like may be replaced with each other, and "specific a", "predetermined a", "preset a", "set a", "indicated a", "certain a", "arbitrary a", "first a" may be interpreted as a predetermined in a protocol or the like, may be interpreted as a obtained by setting, configuring, or indicating, or the like, may be interpreted as specific a, certain a, arbitrary a, or first a, or the like, but are not limited thereto.

In some embodiments, the determination or judgment may be performed by a value (0 or 1) expressed in 1 bit, may be performed by a true-false value (boolean) expressed in true (true) or false (false), or may be performed by a comparison of values (e.g., a comparison with a predetermined value), but is not limited thereto.

In some embodiments, "not expected to receive" may be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on data or the like after the data or the like is received; "not expected to transmit" may be interpreted as not transmitting, or may be interpreted as transmitting but not expecting the receiver to respond to the transmitted content.

In the above technical solution, the terminal sends auxiliary information to the network device, where the auxiliary information is used to instruct the network device to determine the retransmission times of the first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

Fig. 3 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in fig. 3, an embodiment of the present disclosure relates to a communication method, which is performed by a terminal, the method including:

step S3101, the auxiliary information is transmitted to the network device.

In some embodiments, the first downlink access information is applicable to a terrestrial network TN cell or a non-terrestrial network NTN cell.

In some embodiments, the terminal comprises an idle state terminal, an inactive state terminal, or a connected state terminal.

In some embodiments, the number of retransmissions includes a number of physical downlink control channel PDCCH retransmissions and/or a number of physical downlink shared channel PDSCH retransmissions.

In some embodiments, the auxiliary information includes at least one of:

suggesting retransmission times;

In some embodiments, the downlink signal quality comprises a channel quality indication CQI or a reference signal received power RSRP.

In some embodiments, the first downlink access information includes Msg2 and Msg4, and the recommended number of retransmissions includes a first number of retransmissions for Msg2 and a second number of retransmissions for Msg 4.

In some embodiments, the auxiliary information includes first information, and step S3101 includes:

determining the downlink signal quality of a terminal;

and determining that the downlink signal quality is lower than a first threshold value, and the terminal supports retransmission of the first downlink access information and sends auxiliary information to the network equipment.

In some embodiments, step S3101 described above includes:

determining first information;

In some embodiments, step S3101 described above includes:

determining first information;

determining a first report value corresponding to the first information;

In some embodiments, the step of determining the first report value corresponding to the first information includes:

and determining the first index value as a report value.

receiving first configuration information sent by network equipment, wherein the first configuration information is used for indicating a mapping relation between the first information and a first index value;

and determining a first index value according to the first configuration information and the first information.

determining first information;

And sending auxiliary information to the network equipment, wherein the auxiliary information does not comprise downlink signal quality, and the first index value is an index of a value interval in which the first information is located.

In some embodiments, step S3101 described above includes:

determining first information;

determining a suggested retransmission number of the first information;

In some embodiments, the step of determining the second report value corresponding to the number of recommended retransmissions includes:

receiving second configuration information sent by the network equipment, wherein the second configuration information is used for indicating the mapping relation between a plurality of suggested retransmission times and a plurality of second report values;

In some embodiments, step S3101 described above includes:

determining first information;

and determining that the mapping relation between the recommended retransmission times and a second reporting value does not exist, and sending auxiliary information to the network equipment, wherein the auxiliary information does not comprise the recommended retransmission times, and the second reporting value is an index of a value interval in which the recommended retransmission times are located.

In some embodiments, step S3101 described above includes:

In some embodiments, the first downlink access information includes Msg4, and step S3101 includes:

In some embodiments, the step S3101 includes:

In some embodiments, step S3101 described above includes:

In some embodiments, the method further comprises:

In some embodiments, the trigger threshold configuration information includes a downlink signal quality threshold, and step S3101 includes:

In some embodiments, the method further comprises:

In some embodiments, the auxiliary information includes a recommended retransmission number, and step S3101 includes:

determining the downlink signal quality of a terminal;

and sending the recommended retransmission times to the network equipment.

In some embodiments, the method further comprises:

receiving scheduling information sent by network equipment, wherein the scheduling information is used for scheduling first downlink access information;

In some embodiments, the method further comprises:

The related implementation of step S3101 in the embodiments of the present disclosure may refer to the embodiments in step S2101, which are not described herein.

Fig. 4 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in fig. 4, an embodiment of the present disclosure relates to a communication method, which is performed by a terminal, the method including:

in step S4101, the auxiliary information transmitted by the terminal is received.

In some embodiments, the auxiliary information includes at least one of:

suggesting retransmission times;

In some embodiments, the method further comprises:

and sending second configuration information to the terminal, wherein the second configuration information is used for indicating the mapping relation between the plurality of suggested retransmission times and the plurality of second reporting values.

In some embodiments, the method further comprises:

and sending third configuration information to the terminal, wherein the third configuration information is used for indicating whether the network equipment supports the terminal to send auxiliary information.

In some embodiments, the method further comprises:

and sending trigger threshold configuration information to the terminal, wherein the trigger threshold configuration information is used for indicating the terminal to generate auxiliary information according to the trigger threshold configuration information.

In some embodiments, the method further comprises:

The related implementation manner of step S4101 in the embodiments of the present disclosure may refer to the implementation manner of step S2102, and will not be described herein.

In step S4102, the number of retransmissions of the first downlink access information is determined according to the auxiliary information.

In some embodiments, the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB.

The related implementation manner of step S4102 in the embodiments of the present disclosure may refer to the implementation manner of step S2102, and will not be described herein.

In the above technical solution, the network device receives auxiliary information sent by the terminal, and determines the retransmission times of the first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Therefore, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, and the downlink coverage performance of the network equipment is improved.

Fig. 5 is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the present disclosure relates to a communication method, which is performed by a terminal, the method including:

in step S5101, the terminal reports auxiliary information, where the auxiliary information is used to assist the network device in determining retransmission times of Msg2/Msg 4/MsgB.

In some embodiments, the assistance information is applicable to a TN cell or NTN cell.

In some embodiments, the terminal may be an idle terminal/inactive terminal/connected terminal.

In some embodiments, the Msg2/Msg4/MsgB retransmission comprises: msg2/Msg4/Msg B PDCCH retransmissions and/or Msg2/Msg4/Msg B PDSCH retransmissions.

In some embodiments, the auxiliary information includes at least one of:

downlink signal quality;

suggesting retransmission times;

capability information indicating whether the UE supports Msg2/Msg4/MsgB retransmission.

In some embodiments, the downlink signal quality may be CQI or RSRP of a downlink loss reference point.

In some embodiments, the recommended number of retransmissions for Msg2 and Msg4 may be reported separately.

In some embodiments, a threshold is defined, and the UE reports whether retransmission is needed or not in the case that the UE has retransmission capability according to the downlink signal quality and the threshold.

In some embodiments, for reporting the downlink signal quality, the terminal maps the downlink signal quality to a reporting value and then reports the reporting value.

In some embodiments, the downlink signal quality is mapped to multiple intervals, such as: [ < -5], [ -5,0], [0,5], [5, 10], [ >10]. The terminal reports the index value of the interval where the downlink signal quality is located.

In some embodiments, the terminal receives a mapping relationship between the downlink signal quality and the report value of the network configuration.

In some embodiments, the mapping relationship between the downlink signal quality and the report value is agreed through the communication system.

In some embodiments, the UE does not report the downlink signal quality if the downlink signal quality is not within any configuration or system-agreed mapping interval.

In some embodiments, for reporting the number of recommended retransmissions, the terminal maps the number of recommended retransmissions to a reporting value and then reports the reporting value.

In some embodiments, the number of reported retransmissions is mapped to a plurality of intervals, for example: [ < -5], [ -5,0], [0,5], [5, 10], [ >10]. The terminal reports the index value of the interval where the downlink signal quality is located.

In some embodiments, the terminal receives a mapping relationship between the number of retransmissions of the network configuration and the reporting value.

In some embodiments, the configuration is configured by a system message, such as SIB1/SIB19, or by dedicated signaling, such as an RRC reconfiguration message, an RRC connection release message.

In some embodiments, the system agrees with a mapping of the number of recommended retransmissions to the reporting value.

In some embodiments, the terminal determines the mapping relationship between the number of retransmission suggestions and the report value.

In some embodiments, the UE does not report the proposed number of retransmissions if the downlink signal quality is not within any configuration or system-agreed mapping interval.

In some embodiments, the auxiliary information is reported by Msg 1/MsgA.

In some embodiments, different report values may be sent over different PRACH resources.

In some embodiments, the assistance information is reported by Msg 3. For example, when the auxiliary information is reported through Msg3, the first downlink access information is Msg4.

In some embodiments, the report value may be indicated by carrying a MAC CE on Msg 3.

In some embodiments, the auxiliary information is reported through RRC messages, such as UE capability reporting, UE auxiliary information reporting, and the like.

In some embodiments, the terminal receives network configuration information for indicating whether the network supports/allows the terminal to report the auxiliary information.

In some embodiments, the configuration is configured by a system message, such as SIB1/SIB19 configuration, or by dedicated signaling, such as an RRC reconfiguration message, an RRC connection release message.

In some embodiments, the terminal receives the auxiliary information of the network configuration and reports the trigger threshold configuration, and the terminal reports the auxiliary information only when the trigger threshold is met.

In some embodiments, the trigger threshold configuration information includes a downlink signal quality threshold.

In some embodiments, the terminal transmits the assistance information through Msg1/MsgA/Msg3 of the RACH only when the downlink signal quality is less than a threshold value.

In some embodiments, the trigger threshold configuration is configured by a system message, such as SIB1/SIB19 configuration, or by dedicated signaling, such as an RRC reconfiguration message, an RRC connection release message.

In some embodiments, the network device configures RSRP/CQI trigger threshold configurations corresponding to different retransmission times, respectively.

In some embodiments, the UE reports the number of retransmissions after meeting a threshold corresponding to the number of retransmissions.

In some embodiments, the network device indicates the number of retransmissions of Msg2/MsgB/Msg4 in the scheduling information of Msg2/MsgB/Msg 4.

In some embodiments, the terminal receives network configuration information indicating the number of retransmissions supported by the network. For example, the number of retransmissions indicated by the network in the scheduling information is one of the number of retransmissions supported by the network device. In combination with the above embodiment, the number of retransmissions reported by the terminal is one of the number of retransmissions supported by the network.

In the technical scheme, the terminal reports the auxiliary information to assist the network equipment in determining the retransmission times of the downlink access information, so that the downlink coverage performance of the network equipment is improved.

Fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 6, the terminal 6100 may include: a first transceiver module 6101. In some embodiments, the first transceiver module 6101 is configured to send auxiliary information to a network device, where the auxiliary information is used to instruct the network device to determine the number of retransmissions of the first downlink access information according to the auxiliary information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Optionally, the transceiver module is configured to perform at least one of the communication steps of sending and/or receiving performed by the terminal 101 in any of the above methods, which is not described herein.

In some embodiments, the first transceiver module 6101 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.

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in fig. 7, the network device 7100 may include: a second transceiver module 7101 and a first processing module 7102. In some embodiments, the transceiver module 7101 is configured to receive auxiliary information sent by a terminal, and the first processing module 7102 is configured to determine, according to the auxiliary information, a retransmission number of the first downlink access information, where the first downlink access information includes: at least one of contention random access response information Msg2, contention resolution information Msg4, and non-contention random access response information MsgB. Optionally, the second transceiver module 7101 is configured to perform at least one of the communication steps of sending and/or receiving performed by the network device 102 in any of the above methods, which is not described herein.

In some embodiments, the second transceiver module 7101 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 first processing module 7102 may be interchangeable with an execution module.

Fig. 8 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. 8, communication device 8100 includes one or more third processors 8101. The third 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. Optionally, the communication device 8100 is configured to perform any of the above methods. Optionally, one or more third processors 8101 are configured to invoke instructions to cause communication device 8100 to perform any of the above methods.

In some embodiments, communication device 8100 also includes one or more third transceivers 8102. When the communication device 8100 includes one or more third transceivers 8102, the third transceivers 8102 perform at least one of the communication steps of transmitting and/or receiving, etc., in the above-described method, and the third processor 8101 performs at least one of the other steps. In alternative 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, interface, etc. may be replaced with each other, terms such as transmitter, transmitter unit, 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 also includes one or more third memory 8103 for storing data. Optionally, all or part of the third memory 8103 may also be external to the communication device 8100. In alternative embodiments, communication device 8100 may include one or more first interface circuits 8104. Optionally, the first interface circuit 8104 is connected to the third memory 8103, and the first interface circuit 8104 is operable to receive data from the third memory 8103 or other device and is operable to transmit data to the third processor 8101 or other device. For example, the first interface circuit 8104 may read data stored in the third memory 8103 and transmit the data to the third 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. 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. 9 is a schematic structural diagram of a chip 8200 according to an embodiment of the present 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. 9, but is not limited thereto.

The chip 8200 includes one or more fourth processors 8201. The chip 8200 is used to perform any of the above methods.

In some embodiments, the chip 8200 further comprises one or more second interface circuits 8202. Alternatively, the terms interface circuit, interface, transceiver pin, etc. may be interchanged. In some embodiments, the chip 8200 further comprises one or more fourth memories 8203 for storing data. Alternatively, all or part of the fourth memory 8203 may be external to the chip 8200. Optionally, a second interface circuit 8202 is connected to the fourth memory 8203, the second interface circuit 8202 may be configured to receive data from the fourth memory 8203 or another device, and the second interface circuit 8202 may be configured to send data to the fourth memory 8203 or another device. For example, the second interface circuit 8202 may read data stored in the fourth memory 8203 and transmit the data to the fourth processor 8201.

In some embodiments, the second interface circuit 8202 performs at least one of the communication steps of sending and/or receiving in the above-described methods. The second interface circuit 8202 performs the communication step of transmitting and/or receiving in the above method, for example, by: the second interface circuit 8202 performs data interaction between the fourth processor 8201, the chip 8200, the fourth memory 8203, or the transceiving device. In some embodiments, fourth processor 8201 performs at least one of the other steps.

The modules and/or devices described in the embodiments of the virtual device, the physical device, the chip, etc. may be arbitrarily combined or separated according to circumstances. Alternatively, some or all of the steps may be performed cooperatively by a plurality of modules and/or devices, without limitation.

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

1. A method of communication, performed by a terminal, the method comprising:

2. The method of claim 1, wherein the first downlink access information is applicable to a terrestrial network TN-cell or a non-terrestrial network NTN-cell.

3. The method according to claim 1 or 2, wherein the terminal comprises an idle state terminal, an inactive state terminal or a connected state terminal.

4. The method of claim 1, wherein the number of retransmissions comprises a number of physical downlink control channel, PDCCH, retransmissions and/or a number of physical downlink shared channel, PDSCH, retransmissions.

5. The method of claim 1, wherein the auxiliary information comprises at least one of:

Suggesting retransmission times;

6. The method of claim 5, wherein the first information comprises a channel quality indication, CQI, or a reference signal received power, RSRP.

7. The method of claim 5, wherein the first downlink access information comprises the Msg2 and the Msg4, and wherein the suggested number of retransmissions comprises a first number of retransmissions of the Msg2 and a second number of retransmissions of the Msg 4.

8. The method of claim 5, wherein the assistance information comprises the first information, and wherein the sending assistance information to the network device comprises:

determining the first information;

9. The method of claim 5, wherein the sending auxiliary information to the network device comprises:

determining the first information;

determining a first report value corresponding to the first information;

10. The method of claim 9, wherein the determining the first report value corresponding to the first information comprises:

and determining the first index value as the first report value.

11. The method of claim 10, wherein determining the first index value of the value interval in which the first information is located includes:

12. The method of claim 10, wherein determining the first index value of the value interval in which the first information is located includes:

13. The method of claim 5, wherein the sending auxiliary information to the network device comprises:

determining first information in the terminal;

And determining that the mapping relation between the first information and the first index value does not exist, and sending the auxiliary information to the network equipment, wherein the auxiliary information does not comprise the downlink signal quality, and the first index value is an index of a value interval in which the first information is located.

14. The method of claim 5, wherein the assistance information includes the suggested number of retransmissions, and wherein the sending the assistance information to the network device comprises:

determining the first information;

determining a recommended number of retransmissions of the first information;

15. The method of claim 14, wherein the determining the second report value corresponding to the proposed number of retransmissions comprises:

16. The method of claim 14, wherein the determining the second report value corresponding to the proposed number of retransmissions comprises:

17. The method of claim 14, wherein the determining the second report value corresponding to the proposed number of retransmissions comprises:

18. The method of claim 5, wherein the sending auxiliary information to the network device comprises:

determining the first information;

19. The method of claim 1, wherein the sending auxiliary information to the network device comprises:

20. The method according to any of claims 9-12, wherein the sending auxiliary information to a network device comprises:

21. The method according to any of claims 14-17, wherein the sending auxiliary information to a network device comprises:

22. The method of claim 1, wherein the first downlink access information includes the Msg4, and wherein the sending auxiliary information to a network device comprises:

23. The method of claim 22, wherein the sending the auxiliary information to the network device via connection request information Msg3 comprises:

24. The method of claim 1, wherein the sending auxiliary information to the network device comprises:

25. The method according to claim 1, wherein the method further comprises:

26. The method according to claim 1, wherein the method further comprises:

27. The method according to claim 1, wherein the method further comprises:

28. The method of claim 27, wherein the assistance information comprises a suggested number of retransmissions, and wherein the sending the assistance information to the network device comprises:

determining the downlink signal quality of the terminal;

and sending the recommended retransmission times to the network equipment.

29. The method according to claim 1, wherein the method further comprises:

30. The method according to claim 1, wherein the method further comprises:

31. A method of communication, performed by a network device, the method comprising:

receiving auxiliary information sent by a terminal;

32. The method of claim 31, wherein the number of retransmissions comprises a number of physical downlink control channel, PDCCH, retransmissions and/or a number of physical downlink shared channel, PDSCH, retransmissions.

33. The method of claim 31, wherein the auxiliary information comprises at least one of:

suggesting retransmission times;

34. The method of claim 33, wherein the downlink signal quality comprises a channel quality indication, CQI, or a reference signal received power, RSRP.

35. The method of claim 31, further comprising:

36. The method of claim 31, further comprising:

37. The method of claim 31, further comprising:

38. The method of claim 31, further comprising:

39. The method of claim 31, further comprising:

and sending fourth configuration information, wherein the fourth configuration information is used for indicating the mapping relation between the trigger threshold configuration and the recommended retransmission times.

40. The method of claim 31, further comprising:

41. The method of claim 31, further comprising:

42. A method of communication, the method comprising:

the terminal sends auxiliary information to the network equipment;

43. A terminal, comprising:

44. A network device, comprising:

45. A terminal, comprising:

one or more processors;

wherein the terminal is configured to perform the communication method of any of claims 1-30.

46. A network device, comprising:

one or more processors;

wherein the network device is configured to perform the communication method of any of claims 31-41.

47. A communication system comprising a terminal configured to implement the communication method of any of claims 1-30 and a network device configured to implement the communication method of any of claims 31-41.

48. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1-30 or cause the communication device to perform the communication method of any one of claims 31-41.