CN117858246A

CN117858246A - Interference avoidance method, system and communication device

Info

Publication number: CN117858246A
Application number: CN202211191877.4A
Authority: CN
Inventors: 南方; 朱剑驰; 佘小明; 陈鹏
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2024-04-09

Abstract

The disclosure relates to an interference avoidance method, an interference avoidance system and a communication device, and relates to the technical field of communication. The method of the present disclosure comprises: the base station determines interference suppression capability information of the terminal, wherein the interference suppression capability information comprises: at least one of cross link interference suppression capability information and self-interference suppression capability information; the base station schedules the downlink receiving of the terminal and the uplink sending of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

Description

Interference avoidance method, system and communication device

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to an interference avoidance method, an interference avoidance system and a communication device.

Background

Conventional duplex modes include TDD (Time Division Duplexing, time division duplex) and FDD (Frequency Division Duplexing, frequency division duplex). In order to adapt to uplink and downlink time-varying and asymmetric service requirements, a current 5G (5 th Generation mobile networks, 5th Generation wireless systems or 5th-Generation, fifth Generation mobile communication technology) NR (New Radio) system supports dynamic TDD to allow a base station to dynamically adjust the uplink and downlink time slot ratio.

In order to further improve the use efficiency of wireless resources and improve the throughput and capacity of the system, a future duplex mode will evolve towards a full duplex direction. Full duplex communication can simultaneously transmit uplink and downlink information on the same carrier.

Disclosure of Invention

The inventors found that: the key problems to be solved by full duplex applications are: self-interference of the uplink signal sent by the terminal to the self-downlink receiving signal and/or suppression of cross-link interference of the uplink signal sent by other terminals to the downlink receiving signal of the terminal. In the evolution process of duplex mode to full duplex direction, terminals with different interference suppression capability and traditional terminals without interference suppression capability exist. For downlink information, paging messages, and their scheduling DCI (Downlink Control Information ) in a random access procedure, it may need to be received by multiple terminals. If terminals receiving the same downlink information have different interference suppression capabilities, interference from uplink transmissions needs to be avoided for the terminal with the weakest interference suppression capability. Based on the existing terminal capability reporting scheme, if the terminal has not established RRC (Radio Resource Control ) connection, and the base station cannot learn the interference suppression capability of the terminal, the base station may consider that the terminal receiving these downlink information does not have the interference suppression capability, so that uplink transmission can only be scheduled or not scheduled at a frequency domain position far away from the frequency domain position where these terminals receive these downlink information in the time when the terminal receives these downlink information. Therefore, the resource position of uplink transmission is limited, and the improvement of uplink performance is not facilitated.

One technical problem to be solved by the present disclosure is: how to improve the utilization rate and performance of uplink resources while avoiding the interference of uplink transmission to downlink reception of a terminal.

According to some embodiments of the present disclosure, an interference avoidance method is provided, including: the base station determines interference suppression capability information of the terminal, wherein the interference suppression capability information comprises: at least one of cross link interference suppression capability information and self-interference suppression capability information; the base station schedules the downlink receiving of the terminal and the uplink sending of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

In some embodiments, the base station determining interference suppression capability information of the terminal includes: the base station receives the interference suppression capability information of the terminal sent by the core network node, or the base station receives a first paging message sent by the core network node, wherein the first paging message carries the interference suppression capability information of the terminal.

In some embodiments, the method further comprises: the core network node correspondingly stores the interference suppression capability information of the terminal and the identification of the terminal; the core network node determines interference suppression capability information of the terminal corresponding to the identification of the terminal under the condition of initiating the paging process of the terminal; the core network node sends the interference suppression capability information or the first paging message of the terminal to the base station.

In some embodiments, the method further comprises: the base station receives a non-access stratum NAS message sent by the terminal, wherein the NAS message comprises the following components: interference suppression capability information of the terminal; the base station forwards the NAS message to the core network node.

In some embodiments, the method further comprises: the base station receives a first message sent by a terminal, wherein the first message comprises: interference suppression capability information of the terminal, wherein the first message comprises: one or more of a radio resource control RRC message, a medium access control element MAC CE, and a physical layer message; and the base station sends the interference suppression capability information of the terminal to the core network node.

In some embodiments, the base station determining interference suppression capability information of the terminal includes: the base station receives a second paging message sent by the core network node, wherein the second paging message comprises: identification of the terminal; the base station determines interference suppression capability information of the terminal corresponding to the identification of the terminal.

In some embodiments, the base station determining interference suppression capability information of the terminal includes: the base station receives a third paging message sent by other base stations, wherein the third paging message comprises: identification of the terminal; the base station determines interference suppression capability information of the terminal corresponding to the identification of the terminal.

In some embodiments, the method further comprises: the base station transmits the interference suppression capability information of the terminal to other base stations, or the base station transmits a fourth paging message carrying the interference suppression capability information of the terminal to other base stations.

In some embodiments, the method further comprises: the base station receives a second message sent by the terminal, wherein the second message comprises: interference suppression capability information of the terminal, and the second message includes: one or more of a radio resource control RRC message, a medium access control element MAC CE, and a physical layer message; and the base station correspondingly stores the interference suppression capability information of the terminal and the identification of the terminal.

In some embodiments, the base station determining interference suppression capability information of the terminal includes: the base station receives the terminal interference suppression capability information sent by other base stations, or the base station receives a fifth paging message carrying the terminal interference suppression capability information sent by other base stations.

In some embodiments, the base station schedules downlink reception of the terminal and uplink transmission of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal includes:

the base station determines resources for transmitting the sixth paging message to the terminal and/or scheduling Downlink Control Information (DCI) of the sixth paging message, and uplink transmission resources and/or power of other terminals, so that interference generated by uplink transmission of other terminals when the terminal receives the sixth paging message and/or DCI does not exceed the interference suppression capability of the terminal.

In some embodiments, the base station determining interference suppression capability information of the terminal includes: the base station determines interference suppression capability information of the terminal through information in a random access process sent by the terminal, wherein the information in the random access process comprises the following steps: information carried by a Physical Uplink Shared Channel (PUSCH) in a random access preamble or a random access process.

In some embodiments, in the case that the information in the random access procedure comprises a random access preamble, the method further comprises: the base station sends configuration information to the terminal, wherein the configuration information comprises: random access preamble resource groups respectively corresponding to different interference suppression capability information of the terminal, the random access preamble resource groups include: randomly accessing one or more of a preamble time domain resource, a frequency domain resource and a preamble; the method for determining the interference suppression capability information of the terminal by the base station through the information in the random access process sent by the terminal comprises the following steps: and the base station determines corresponding terminal interference suppression capability information according to the received random access preamble resource group of the random access preamble.

In some embodiments, the base station schedules downlink reception of the terminal and uplink transmission of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal includes: the base station determines the resource of the downlink information in the random access process to the terminal and the uplink transmission resource and/or power of other terminals, so that the interference generated by the uplink transmission of other terminals when the terminal receives the downlink information in the random access process does not exceed the interference suppression capability of the terminal.

In some embodiments, the downstream information includes: the random access response RAR in the 4-step random process, DCI for scheduling RAR, message 4 in the 4-step random process, DCI for scheduling message 4, message B in the 2-step random access process, DCI for scheduling message B.

In some embodiments, the cross-link interference suppression capability information includes: the dB value of cross link interference suppression, or the cross link interference suppression capability level, or whether the terminal supports information that downlink reception and first uplink transmission are performed simultaneously, or configuration information of the first uplink transmission, and/or the self-interference suppression capability information includes: the dB value of self-interference suppression, or the self-interference suppression capability level, or whether the terminal supports simultaneous information of downlink reception and second uplink transmission, or configuration information of the second uplink transmission, where the first uplink transmission includes uplink transmissions of other terminals, and the configuration information of the first uplink transmission includes: at least one of a frequency domain interval, a time domain interval between a first uplink transmission resource and a terminal downlink received resource, and power information of the first uplink transmission, wherein the second uplink transmission includes uplink transmission of the terminal, and configuration information of the second uplink transmission includes: at least one of a frequency domain interval, a time domain interval between the resources of the second uplink transmission and the resources of the terminal downlink reception, and power information of the second uplink transmission.

In some embodiments, in a case where the interference suppression capability information includes cross-link interference suppression capability information, the cross-link interference suppression capability information includes a dB value or a cross-link interference suppression capability level of cross-link interference suppression, there is a first correspondence between the dB value or the cross-link interference suppression capability level of cross-link interference suppression and configuration information of a first uplink transmission, the base station scheduling downlink reception of the terminal and uplink transmission of each terminal includes: the base station determines configuration information of the first uplink transmission according to the first corresponding relation, and schedules downlink reception of the terminal and uplink transmission of other terminals according to the configuration information of the first uplink transmission; and/or, in the case that the interference suppression capability information includes self-interference suppression capability information, the self-interference suppression capability information includes a dB value or a self-interference suppression capability level of self-interference suppression, there is a second correspondence between the dB value or the self-interference suppression capability level of self-interference suppression and configuration information of second uplink transmission, the base station scheduling downlink reception of the terminal and uplink transmission of each terminal includes: the base station determines configuration information of the second uplink transmission according to the second corresponding relation, and schedules downlink reception and uplink transmission of the terminal according to the configuration information of the second uplink transmission.

In some embodiments, the first correspondence or the second correspondence is sent by the base station to the terminal or is pre-agreed.

According to other embodiments of the present disclosure, there is provided an interference avoidance method including: the terminal reports interference suppression capability information to the base station, wherein the interference suppression capability information comprises: at least one of cross link interference suppression capability information and self-interference suppression capability information; and the terminal performs downlink receiving and/or uplink sending according to the scheduling information sent by the base station, wherein the scheduling information sent by the base station enables the interference suffered by the terminal not to exceed the interference suppression capability of the terminal.

In some embodiments, the reporting, by the terminal, interference suppression capability information to the base station includes: the terminal sends a message carrying interference suppression capability information to the base station, wherein the message comprises: one or more of non-access stratum NAS message, radio resource control RRC message, medium access control element MAC CE, and physical layer message; or the terminal indicates the interference suppression capability information of the terminal to the base station through the information in the random access process, wherein the information in the random access process comprises the following steps: information carried by a Physical Uplink Shared Channel (PUSCH) in a random access preamble or a random access process.

In some embodiments, in the case that the information in the random access procedure comprises a random access preamble, the method further comprises: the terminal receives configuration information sent by a base station, wherein the configuration information comprises: random access preamble resource groups respectively corresponding to different interference suppression capability information of the terminal, the random access preamble resource groups include: randomly accessing one or more of a preamble time domain resource, a frequency domain resource and a preamble; the method for indicating the interference suppression capability information of the terminal to the base station through the information in the random access process comprises the following steps: the terminal determines a random access preamble resource group corresponding to the interference suppression capability information of the terminal, and transmits the random access preamble by using the determined resources of the random access preamble resource group.

According to still further embodiments of the present disclosure, there is provided a base station including: the determining module is configured to determine interference suppression capability information of a terminal, where the interference suppression capability information includes: at least one of cross link interference suppression capability information and self-interference suppression capability information; and the scheduling module is used for scheduling the downlink receiving of the terminal and the uplink sending of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

According to still further embodiments of the present disclosure, there is provided a terminal including: the reporting module is configured to report interference suppression capability information to the base station, where the interference suppression capability information includes: at least one of cross link interference suppression capability information and self-interference suppression capability information; and the transmission module is used for carrying out downlink receiving and/or uplink sending according to the scheduling information sent by the base station, wherein the scheduling information sent by the base station enables the interference suffered by the terminal not to exceed the interference suppression capability of the terminal.

According to still further embodiments of the present disclosure, there is provided a communication apparatus including: a processor; and a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform the disturbance avoidance method of any of the above embodiments.

According to still further embodiments of the present disclosure, there is provided an interference avoidance system, including: the base station and the terminal of any of the foregoing embodiments.

In the method, the base station determines the interference suppression capability of the terminal for any terminal, and then schedules downlink reception of the terminal and uplink transmission of each terminal according to the interference suppression capability of the terminal, so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal, thereby not only realizing suppression of interference caused by the terminal on uplink transmission, ensuring the accuracy of downlink reception of the terminal, but also improving the utilization rate and performance of uplink resources.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 illustrates a flow diagram of an interference avoidance method of some embodiments of the present disclosure.

Fig. 2 shows a flow diagram of an interference avoidance method of other embodiments of the present disclosure.

Fig. 3 shows a flow diagram of an interference avoidance method of further embodiments of the present disclosure.

Fig. 4 illustrates a schematic structure of a base station of some embodiments of the present disclosure.

Fig. 5 illustrates a schematic structural diagram of a terminal of some embodiments of the present disclosure.

Fig. 6 illustrates a schematic structural diagram of a communication device of some embodiments of the present disclosure.

Fig. 7 shows a schematic structural diagram of a communication device of other embodiments of the present disclosure.

Fig. 8 illustrates a schematic diagram of the architecture of an interference avoidance system of some embodiments of the present disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

The present disclosure provides an interference avoidance method, described below in connection with fig. 1-3.

Fig. 1 is a flow chart of some embodiments of the interference avoidance method of the present disclosure. As shown in fig. 1, the method of this embodiment includes: steps S102 to S106.

In step S102, the terminal reports interference suppression capability information to the base station.

For example, the interference suppression capability information includes: at least one of cross-link interference suppression capability information and self-interference suppression capability information. Cross-link interference includes interference that a terminal experiences when receiving downlink from other terminals transmitting uplink. Self-interference includes the terminal receiving interference generated by the uplink transmission of the terminal when receiving in the downlink.

In the evolution of duplex mode to full duplex direction, there may be terminals with different interference suppression capabilities. The capacity of some terminals for suppressing self-interference from own uplink transmission or cross-link interference from uplink transmission of other terminals is strong, so that the simultaneous transmission of own downlink transmission and uplink transmission of own or other terminals is supported, and the frequency domain overlaps or has a relatively short distance; some terminals have weak ability to suppress self-interference from own uplink transmission or cross-link interference from uplink transmission of other terminals, so that only own downlink transmission and uplink transmission of own or other terminals are supported to be transmitted simultaneously but far away from the frequency domain or not simultaneously. Legacy terminals also exist in full duplex systems and do not have the ability to suppress interference from uplink transmissions when receiving downlink.

In some embodiments, the cross-link interference suppression capability information includes: the dB value of the cross link interference suppression, or the cross link interference suppression capability level, or whether the terminal supports the simultaneous downlink reception and the first uplink transmission, or the configuration information of the first uplink transmission. The first uplink transmission includes uplink transmissions of other terminals. The configuration information sent by the first uplink includes: at least one of a frequency domain interval, a time domain interval between a resource of the first uplink transmission and a resource of the terminal downlink reception, and power information of the first uplink transmission.

In some embodiments, the self-interference suppression capability information includes: the dB value of self-interference suppression, or the self-interference suppression capability level, or whether the terminal supports simultaneous downlink reception and second uplink transmission, or configuration information of the second uplink transmission. The second uplink transmission includes an uplink transmission of the terminal. The configuration information sent by the second uplink includes: at least one of a frequency domain interval, a time domain interval between the resources of the second uplink transmission and the resources of the terminal downlink reception, and power information of the second uplink transmission.

The frequency domain interval includes, for example, hz, the number of resource blocks, or the number of subcarriers. The time interval includes, for example, seconds, milliseconds, microseconds, time slots, or symbols. The terminal may report the cross link interference suppression capability information and the self-interference suppression capability information to the base station through the same or different parameters. The base station can receive the cross link interference suppression capability information and the self-interference suppression capability information reported by the terminal through the same or different parameters.

In step S104, the base station determines interference suppression capability information of the terminal.

In some embodiments, the terminal reports interference suppression capability information to the base station through a NAS (Non-Access Stratum) message or a first message. And the base station determines the interference suppression capability information of the terminal through the core network node.

For example, as shown in fig. 2, in step S202, the terminal transmits a NAS message or a first message to the base station, and the base station receives the NAS message or the first message transmitted by the terminal, respectively.

The NAS message includes: the interference suppression capability information of the terminal, or the first message includes: interference suppression capability information of the terminal. For example, the first message includes: one or more of RRC message, MAC (Media Access Control), CE (Control Element) and physical layer message.

In step S204, the base station transmits a NAS message or interference suppression capability information of the terminal to the core network node.

For example, the base station forwards the NAS message including the terminal interference suppression capability information, which is sent by the received terminal, to the core network node. NAS messages are transparent to the base station. Such as a message in a terminal Attach (Attach) network or TAU (Tracking Area Update ) procedure. For another example, the base station acquires interference suppression capability information of the terminal included in the received first message, and sends the interference suppression capability information of the terminal to the core network node through an interface between the radio access network and the core network. For example, the base station sends the interference suppression capability information of the terminal to the core network node through the capability information indication. The core network node is for example an AMF (Access and Mobility Management Function ) node. The interface between the radio access network and the core network is for example an NG interface.

In step S206, the core network node stores the interference suppression capability information of the terminal in association with the identity of the terminal.

The identity of the terminal is for example an S-TMSI (S-Temporary Mobile Subscriber Identity, temporary mobile subscriber identifier), or an RNTI (Radio Network Temporary Identity, radio network temporary identifier). The S-TMSI may be NG-5G-S-TMSI. The RNTI may be an I-RNTI.

In step S208, the core network node determines interference suppression capability information of the terminal corresponding to the identity of the terminal in the case of initiating the paging procedure of the terminal.

In step S210, the core network node transmits interference suppression capability information of the terminal or a first paging message to the base station. Correspondingly, the base station receives the interference suppression capability information or the first paging message of the terminal sent by the core network node, so that the base station determines the interference suppression capability information of the terminal through the core network node.

The first paging message carries interference suppression capability information of the terminal. I.e. the interference suppression capability information of the terminal may be transmitted via paging messages sent by the core network node of the interface between the radio access network and the core network. Alternatively, the core network node may send other messages containing the interference suppression capability information of the terminal to the base station. I.e. the interference suppression capability information of the terminal sent by the core network node may be transmitted via a different message than the paging message sent by the core network node over the interface between the radio access network and the core network.

In other embodiments, the terminal reports interference suppression capability information to the base station via the second message. And the base station correspondingly stores the interference suppression capability information of the terminal and the identification of the terminal. The base station determines the interference suppression capability information of the terminal through the identification of the terminal and self-storage.

For example, as shown in fig. 3, in step S302, the terminal transmits a second message to the base station, and the base station receives the second message transmitted by the terminal, accordingly.

The second message includes: interference suppression capability information of the terminal, the second message includes, for example: one or more of RRC message, MAC CE, and physical layer message.

In step S304, the base station stores interference suppression capability information of the terminal in association with the identification of the terminal.

In step S306, the base station receives a second paging message sent by the core network node or a third paging message sent by another base station. The second paging message includes: and (5) identification of the terminal. The third paging message includes: and (5) identification of the terminal.

For example, when the core network initiates the paging procedure of the terminal, the core network node transmits the second paging message to the base station without transmitting the interference suppression capability information of the terminal to the base station.

For example, in the case that the terminal is in an INACTIVE (rrc_inactive) state and the other base station initiates access network paging, the base station receives a third paging message sent by the other base station.

In step S308, the base station determines interference suppression capability information of the terminal corresponding to the identification of the terminal.

In still other embodiments, after step S304, the base station may also transmit interference suppression capability information of the terminal to other base stations. For example, when the terminal is in an inactive state and the base station initiates access network paging, the base station transmits a message carrying interference suppression capability information of the terminal to other base stations, and the message carrying the interference suppression capability information of the terminal is a different message from the paging message transmitted by the base station to other base stations. Or the base station sends the fourth paging message carrying the interference suppression capability information of the terminal to other base stations.

In still other embodiments, the base station may determine the interference suppression capability information of the terminal through other base stations. For example, when the terminal is in an inactive state and other base stations initiate access network paging, the base station receives terminal interference suppression capability information sent by other base stations, or the base station receives a fifth paging message carrying the terminal interference suppression capability information sent by other base stations.

The above embodiments are applicable to paging scenarios, where the base station determines interference suppression capability information of the terminal.

In some embodiments, the terminal indicates interference suppression capability information of the terminal to the base station through information in a random access process, and the base station determines the interference suppression capability information of the terminal through information in the random access process sent by the terminal, wherein the information in the random access process comprises: information carried by PUSCH (Physical Uplink Shared Channel ) in random access preamble or random access procedure.

For example, the random access preamble includes message 1 (Msg 1) in 4-step random access or message a (MsgA) in 2-step random access. The information of the PUSCH bearer in the random access procedure includes message 3 (Msg 3) in the 4-step random access, or the information of the PUSCH bearer in message a in the 2-step random access.

In some embodiments, in the case that the information in the random access procedure includes a random access preamble, the base station transmits configuration information to the terminal, and correspondingly, the terminal receives the configuration information transmitted by the base station, where the configuration information includes: random access preamble resource groups respectively corresponding to different interference suppression capability information of the terminal, the random access preamble resource groups include: one or more of random access preamble time domain resource, frequency domain resource, preamble.

Further, the terminal determines a random access preamble resource group corresponding to the interference suppression capability information of the terminal, the random access preamble is sent by using the determined resources of the random access preamble resource group, and the base station determines the corresponding terminal interference suppression capability information according to the received random access preamble resource group of the random access preamble.

For example, the configuration information sent by the base station includes: a random access preamble resource group 1 corresponding to the interference suppression capability level 1 of the terminal, wherein the random access preamble resource group 1 comprises time slots with odd numbers as time slots for random access preamble transmission; the random access preamble resource group 2 corresponding to the interference suppression capability level 2 of the terminal, where the random access preamble resource group 2 includes even numbered slots as slots for random access preamble transmission. A terminal with interference suppression capability class 2 transmits a random access preamble in even numbered slots. And when the base station receives the random access preamble in the even numbered time slots, determining the resource group of the received random access preamble as a resource group 2, and further determining the interference suppression capability level of the terminal transmitting the random access preamble as level 2. According to the method of this embodiment, other application examples are possible, and will not be described in detail.

The above embodiment is applicable to a random access scenario, where the base station determines interference suppression capability information of the terminal.

In step S106, the base station schedules downlink reception and uplink transmission of each terminal, and correspondingly, the terminal performs downlink reception and/or uplink transmission according to the scheduling information sent by the base station, so that interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

In some embodiments, in a case where the interference suppression capability information includes cross link interference suppression capability information, the cross link interference suppression capability information includes a dB value of cross link interference suppression or a cross link interference suppression capability level, a first correspondence exists between the dB value of cross link interference suppression or the cross link interference suppression capability level and configuration information of the first uplink transmission, the base station determines the configuration information of the first uplink transmission according to the determined terminal interference suppression capability information and the first correspondence, and schedules downlink reception of the terminal and uplink transmission of other terminals according to the configuration information of the first uplink transmission.

In some embodiments, when the interference suppression capability information includes self-interference suppression capability information, and the self-interference suppression capability information includes a dB value of self-interference suppression or a self-interference suppression capability level, a second correspondence exists between the dB value of self-interference suppression or the self-interference suppression capability level and configuration information of a second uplink transmission, and the base station determines the configuration information of the second uplink transmission according to the determined terminal interference suppression capability information and the second correspondence, and schedules downlink reception and uplink transmission of the terminal according to the configuration information of the second uplink transmission.

The first correspondence or the second correspondence is sent by the base station to the terminal or is predefined, for example, specified by a protocol or predefined by an empirical value. For example, the first correspondence is shown in table 1.

TABLE 1

In the above table, 0Hz indicates that the frequency domain resource received by the terminal in the downlink and the frequency domain resource transmitted by other terminals in the uplink may be the same. 0ms means that the time domain resource received by the terminal in the downlink and the time domain resource sent by other terminals in the uplink can be the same. The infinite frequency domain interval indicates that the downlink reception of the terminal and the uplink transmission of other terminals cannot be performed simultaneously. The second corresponding relationship is similar to the first corresponding relationship, and will not be described again.

For the paging scenario, in some embodiments, the base station determines resources for transmitting the sixth paging message and/or scheduling DCI for the sixth paging message to the terminal, and uplink transmission resources and/or power of other terminals, so that interference generated by uplink transmission of other terminals when the terminal receives the sixth paging message and/or DCI does not exceed the interference suppression capability of the terminal.

When the base station receives the paging message sent by the core network node or the base station pages the terminal in the RRC_INACTIVE state, the base station needs to send a sixth paging message and DCI for scheduling the sixth paging message to the terminal through an air interface. The base station can determine the sixth paging message sent to the terminal, the resource of DCI for scheduling the sixth paging message and other uplink sending resources and/or power of other terminals according to the interference suppression capability information of the terminal needing paging, so that the interference level from uplink transmission is ensured not to exceed the interference suppression capability of the terminal when the terminal receives the sixth paging message and schedules the DCI for the sixth paging message, and meanwhile, the available resource of uplink transmission is increased, and the uplink transmission performance is improved. The resources include: time domain resources, frequency domain resources, or time frequency resources.

For example, when the terminal requiring paging includes only the terminal with strong interference suppression capability, the base station may schedule uplink transmission of other terminals on the overlapping frequency resources or the frequency resources closer to the overlapping frequency resources while transmitting the sixth paging message to the terminal and scheduling DCI of the sixth paging message.

For another example, the base station may send paging messages of terminals with strong interference suppression capability and DCI for scheduling paging messages separately from paging messages of terminals with weak interference suppression capability (or legacy terminals) and DCI for scheduling paging messages in different paging opportunities, so that the base station may schedule uplink transmissions of other terminals on overlapping frequency resources or frequency resources closer to the overlapping frequency resources while sending paging messages and DCI for scheduling paging messages to terminals with strong interference suppression capability.

For the random access scenario, in some embodiments, the base station determines resources for transmitting downlink information in the random access procedure to the terminal, and uplink transmission resources and/or power of other terminals, so that interference generated by uplink transmission of other terminals when the terminal receives the downlink information in the random access procedure does not exceed the interference suppression capability of the terminal.

The downlink information includes, for example: the random access response RAR in the 4-step random process, DCI for scheduling RAR, message 4 in the 4-step random process, DCI for scheduling message 4, message B in the 2-step random access process, DCI for scheduling message B.

After the base station acquires the interference suppression capability information of the terminal, when the downlink information in the random access process is transmitted, the interference suppression capability information of the terminal which can receive the downlink information in the random access process can be used for determining the resource for transmitting the downlink information and the uplink transmission resource and/or power of other terminals according to the requirement, so that the interference level from uplink transmission when the terminal receives the downlink information in the random access process is ensured not to exceed the interference suppression capability of the terminal, and meanwhile, the available resource for uplink transmission is increased, and the uplink transmission performance is improved.

For example, when the terminal that needs to receive the RAR (Random Access Response ) includes only the terminal with strong interference suppression capability, the base station may schedule uplink transmission of other terminals on overlapping frequency resources or frequency resources closer to the terminal while transmitting the RAR to the terminal.

For another example, the base station may separate the RAR of a terminal with strong interference suppression capability and the RAR of a terminal with weak interference suppression capability (or a legacy terminal), so that the base station may schedule uplink transmission of other terminals on overlapping frequency resources or frequency resources closer to the terminal with strong interference suppression capability while transmitting the RAR to the terminal with strong interference suppression capability.

In the above embodiment, the base station first determines the interference suppression capability of the terminal for any terminal, and then schedules downlink reception of the terminal and uplink transmission of each terminal according to the interference suppression capability of the terminal, so that interference suffered by the terminal does not exceed the interference suppression capability of the terminal, thereby not only realizing suppression of interference from uplink transmission by the terminal, ensuring accuracy of downlink reception of the terminal, but also improving utilization rate and performance of uplink resources.

In the above embodiment, after the base station obtains the terminal interference suppression capability information for the paging scenario and the random access scenario, when downlink information, paging information and DCI for scheduling paging information in the random access process are sent, the time-frequency resources for sending the downlink information, paging information and DCI for scheduling paging information in the random access process, and uplink transmission time-frequency resources and power of other scheduled terminals can be determined according to the interference suppression capability information of the terminal that needs to be received, so that the interference level from uplink transmission when the terminal receives downlink is ensured not to exceed the interference suppression capability of the terminal, and meanwhile, the available resources for uplink transmission are increased, and uplink transmission performance is improved.

The interference suppression capability information of the terminal acquired by the base station can also be used as the basis for downlink resource allocation after the terminal RRC connection is established, uplink resource allocation of the terminal itself and uplink resource allocation of other terminals, so that under the scene after the RRC connection is established, the interference level from uplink transmission is ensured not to exceed the interference suppression capability of the terminal when the terminal receives downlink, the available resources of uplink transmission are increased, and the uplink transmission performance is improved.

The method is suitable for non-overlapping full duplex of uplink and downlink frequency domains and is also suitable for overlapping full duplex of the uplink and downlink frequency domains. The method is suitable for the base station to adopt full duplex, the terminal still keeps traditional duplex, and the method is also suitable for the base station and the terminal to adopt full duplex.

The present disclosure also provides a base station, described below in connection with fig. 4.

Fig. 4 is a block diagram of some embodiments of a base station of the present disclosure. As shown in fig. 4, the base station 40 of this embodiment includes: a determination module 410, a scheduling module 420.

The determining module 410 is configured to determine interference suppression capability information of a terminal, where the interference suppression capability information includes: at least one of cross-link interference suppression capability information and self-interference suppression capability information. The determining module 410 is configured to perform the method related to determining interference suppression capability information of the terminal in any of the foregoing embodiments, which is not described herein.

The scheduling module 420 is configured to schedule downlink reception of the terminal and uplink transmission of each terminal, so that interference suffered by the terminal does not exceed interference suppression capability of the terminal. The scheduling module 420 is configured to execute the method related to scheduling the downlink reception of the terminal and the uplink transmission of each terminal in any of the foregoing embodiments, which is not described herein.

The present disclosure also provides a terminal, described below in connection with fig. 5.

Fig. 5 is a block diagram of some embodiments of a terminal of the present disclosure. As shown in fig. 5, the terminal 50 of this embodiment includes: reporting module 510, transmitting module 520.

The reporting module 510 is configured to report interference suppression capability information to a base station, where the interference suppression capability information includes: at least one of cross-link interference suppression capability information and self-interference suppression capability information. The reporting module 510 is configured to execute the method related to reporting the interference suppression capability information to the base station in any of the foregoing embodiments, which is not described herein.

And the transmission module 520 is configured to perform downlink reception and/or uplink transmission according to the scheduling information sent by the base station, where the scheduling information sent by the base station causes the interference suffered by the terminal to not exceed the interference suppression capability of the terminal. The transmission module 520 is configured to execute the method related to downlink reception and/or uplink transmission according to the scheduling information sent by the base station in any of the foregoing embodiments, which is not described herein.

The communication apparatuses (terminals, base stations, or core network nodes) in embodiments of the present disclosure may each be implemented by various computing devices or computer systems, as described below in connection with fig. 6 and 7.

Fig. 6 is a block diagram of some embodiments of a communications device of the present disclosure. As shown in fig. 6, the apparatus 60 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 being configured to perform the interference avoidance method in any of the embodiments of the present disclosure based on instructions stored in the memory 610.

The memory 610 may include, for example, system memory, fixed nonvolatile storage media, and the like. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), database, and other programs.

Fig. 7 is a block diagram of further embodiments of the communication device of the present disclosure. As shown in fig. 7, the apparatus 70 of this embodiment includes: memory 710 and processor 720 are similar to memory 610 and processor 620, respectively. Input/output interface 730, network interface 740, storage interface 750, and the like may also be included. These interfaces 730, 740, 750, as well as the memory 710 and the processor 720, may be connected by a bus 760, for example. The input/output interface 730 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, a touch screen, etc. The network interface 740 provides a connection interface for various networking devices, such as may be connected to a database server or cloud storage server, or the like. Storage interface 750 provides a connection interface for external storage devices such as SD cards, U-discs, and the like.

The present disclosure also provides an interference avoidance system, described below in connection with fig. 8.

FIG. 8 is a block diagram of some embodiments of a disturbance avoidance system of the present disclosure. As shown in fig. 8, the system 8 of this embodiment includes: the base station 40 and the terminal 50 of any of the previous embodiments.

In some embodiments, the system 8 further comprises: the core network node 82 is configured to send, to the base station 40, interference suppression capability information of the terminal 50 or a first paging message, where the first paging message carries the interference suppression capability information of the terminal.

The core network node 82 is further configured to perform the method performed by the core network node in any of the foregoing embodiments, which is not described herein.

It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to enable any modification, equivalent replacement, improvement or the like, which fall within the spirit and principles of the present disclosure.

Claims

1. An interference avoidance method comprising:

the base station determines interference suppression capability information of the terminal, wherein the interference suppression capability information comprises: at least one of cross link interference suppression capability information and self-interference suppression capability information;

and the base station schedules the downlink receiving of the terminal and the uplink sending of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

2. The interference avoidance method of claim 1 wherein the base station determining interference suppression capability information of a terminal comprises:

The base station receives interference suppression capability information of the terminal sent by a core network node, or,

the base station receives a first paging message sent by a core network node, wherein the first paging message carries interference suppression capability information of the terminal.

3. The disturbance avoidance method according to claim 2, further comprising:

the core network node correspondingly stores the interference suppression capability information of the terminal and the identification of the terminal;

the core network node determines interference suppression capability information of the terminal corresponding to the identification of the terminal under the condition of initiating the paging process of the terminal;

the core network node sends the interference suppression capability information of the terminal or the first paging message to the base station.

4. The disturbance avoidance method according to claim 2, further comprising:

the base station receives a non-access stratum NAS message sent by the terminal, wherein the NAS message comprises: interference suppression capability information of the terminal;

the base station forwards the NAS message to the core network node.

5. The disturbance avoidance method according to claim 2, further comprising:

the base station receives a first message sent by the terminal, wherein the first message comprises: the interference suppression capability information of the terminal, and the first message includes: one or more of a radio resource control RRC message, a medium access control element MAC CE, and a physical layer message;

And the base station sends the interference suppression capability information of the terminal to the core network node.

6. The interference avoidance method of claim 1 wherein the base station determining interference suppression capability information of a terminal comprises:

the base station receives a second paging message sent by a core network node, wherein the second paging message comprises: the identification of the terminal;

and the base station determines interference suppression capability information of the terminal corresponding to the identification of the terminal.

7. The interference avoidance method of claim 1 wherein the base station determining interference suppression capability information of a terminal comprises:

the base station receives a third paging message sent by other base stations, wherein the third paging message comprises: the identification of the terminal;

8. The disturbance avoidance method of claim 1, further comprising:

the base station sends the interference suppression capability information of the terminal to other base stations, or the base station sends a fourth paging message carrying the interference suppression capability information of the terminal to other base stations.

9. The disturbance avoidance method according to any one of claims 6-8, further comprising:

the base station receives a second message sent by the terminal, wherein the second message comprises: the interference suppression capability information of the terminal, and the second message includes: one or more of a radio resource control RRC message, a medium access control element MAC CE, and a physical layer message;

and the base station correspondingly stores the interference suppression capability information of the terminal and the identification of the terminal.

10. The interference avoidance method of claim 1 wherein the base station determining interference suppression capability information of a terminal comprises:

and the base station receives the terminal interference suppression capability information sent by other base stations, or the base station receives a fifth paging message carrying the terminal interference suppression capability information sent by other base stations.

11. The interference avoidance method according to claim 1, wherein the base station scheduling downlink reception of the terminal and uplink transmission of each terminal so that the interference suffered by the terminal does not exceed an interference suppression capability of the terminal comprises:

the base station determines resources for transmitting a sixth paging message to the terminal and/or scheduling Downlink Control Information (DCI) of the sixth paging message, and uplink transmission resources and/or power of other terminals, so that interference generated by uplink transmission of other terminals when the terminal receives the sixth paging message and/or the DCI does not exceed the interference suppression capability of the terminal.

12. The interference avoidance method of claim 1 wherein the base station determining interference suppression capability information of a terminal comprises:

the base station determines interference suppression capability information of the terminal through information in a random access process sent by the terminal, wherein the information in the random access process comprises the following steps: information carried by a Physical Uplink Shared Channel (PUSCH) in a random access preamble or a random access process.

13. The interference avoidance method according to claim 12, wherein in case the information in the random access procedure includes a random access preamble, the method further comprises:

the base station sends configuration information to the terminal, wherein the configuration information comprises: random access preamble resource groups respectively corresponding to different interference suppression capability information of the terminal, wherein the random access preamble resource groups comprise: randomly accessing one or more of a preamble time domain resource, a frequency domain resource and a preamble;

the method for determining the interference suppression capability information of the terminal by the base station through the information in the random access process sent by the terminal comprises the following steps:

and the base station determines corresponding terminal interference suppression capability information according to the received random access preamble resource group of the random access preamble.

14. The interference avoidance method according to claim 1, wherein the base station scheduling downlink reception of the terminal and uplink transmission of each terminal so that the interference suffered by the terminal does not exceed an interference suppression capability of the terminal comprises:

and the base station determines the resource of the downlink information in the random access process to the terminal and the uplink transmission resource and/or power of other terminals, so that the interference generated by the uplink transmission of other terminals when the terminal receives the downlink information in the random access process does not exceed the interference suppression capability of the terminal.

15. The disturbance avoidance method of claim 14 wherein,

the downlink information includes: the random access response RAR in a 4-step random process, DCI for scheduling the RAR, message 4 in a 4-step random process, DCI for scheduling the message 4, message B in a 2-step random access process, and DCI for scheduling the message B.

16. The disturbance avoidance method of claim 1 wherein,

the cross link interference suppression capability information includes: the dB value of the cross-link interference suppression, or the cross-link interference suppression capability level, or whether the terminal supports simultaneous downlink reception and first uplink transmission, or configuration information of the first uplink transmission, and/or,

The self-interference suppression capability information includes: the dB value of self-interference suppression, or the self-interference suppression capability level, or whether the terminal supports simultaneous downlink reception and second uplink transmission, or configuration information of the second uplink transmission,

the first uplink transmission includes uplink transmissions of other terminals, and the configuration information of the first uplink transmission includes: at least one of a frequency domain interval, a time domain interval between the resources of the first uplink transmission and the resources of the terminal downlink reception, and power information of the first uplink transmission, wherein the second uplink transmission includes uplink transmission of the terminal, and configuration information of the second uplink transmission includes: at least one of a frequency domain interval, a time domain interval between the resource of the second uplink transmission and the resource of the terminal downlink reception, and power information of the second uplink transmission.

17. The disturbance avoidance method of claim 1 wherein,

in the case that the interference suppression capability information includes cross link interference suppression capability information, the cross link interference suppression capability information includes a dB value or a cross link interference suppression capability level of cross link interference suppression, a first correspondence exists between the dB value or the cross link interference suppression capability level of cross link interference suppression and the configuration information of the first uplink transmission, and the base station schedules downlink reception of the terminal and uplink transmission of each terminal includes:

The base station determines the configuration information of the first uplink transmission according to the first corresponding relation, and schedules downlink reception of the terminal and uplink transmission of other terminals according to the configuration information of the first uplink transmission; and/or the number of the groups of groups,

in the case that the interference suppression capability information includes self-interference suppression capability information, where the self-interference suppression capability information includes a dB value or a self-interference suppression capability level of self-interference suppression, a second correspondence exists between the dB value or the self-interference suppression capability level of self-interference suppression and configuration information of the second uplink transmission, the base station scheduling downlink reception of the terminal and uplink transmission of each terminal includes:

and the base station determines the configuration information of the second uplink transmission according to the second corresponding relation, and schedules the downlink reception and the uplink transmission of the terminal according to the configuration information of the second uplink transmission.

18. The disturbance avoidance method of claim 17 wherein,

the first corresponding relation or the second corresponding relation is sent to the terminal by the base station or is appointed in advance.

19. An interference avoidance method comprising:

The terminal reports interference suppression capability information to the base station, wherein the interference suppression capability information comprises: at least one of cross link interference suppression capability information and self-interference suppression capability information;

and the terminal performs downlink receiving and/or uplink sending according to the scheduling information sent by the base station, wherein the scheduling information sent by the base station enables the interference suffered by the terminal not to exceed the interference suppression capability of the terminal.

20. The interference avoidance method of claim 19 wherein the terminal reporting interference suppression capability information to a base station comprises:

the terminal sends a message carrying the interference suppression capability information to the base station, wherein the message comprises: one or more of non-access stratum NAS message, radio resource control RRC message, medium access control element MAC CE, and physical layer message; or,

the terminal indicates the interference suppression capability information of the terminal to the base station through information in a random access process, wherein the information in the random access process comprises the following steps: information carried by a Physical Uplink Shared Channel (PUSCH) in a random access preamble or a random access process.

21. The interference avoidance method of claim 20 wherein, in the event that the information in the random access procedure includes a random access preamble, the method further comprises:

the terminal receives configuration information sent by the base station, wherein the configuration information comprises: random access preamble resource groups respectively corresponding to different interference suppression capability information of the terminal, wherein the random access preamble resource groups comprise: randomly accessing one or more of a preamble time domain resource, a frequency domain resource and a preamble;

the method for indicating the interference suppression capability information of the terminal to the base station through the information in the random access process comprises the following steps:

and the terminal determines a random access preamble resource group corresponding to the interference suppression capability information of the terminal, and transmits the random access preamble by utilizing the resources of the determined random access preamble resource group.

22. A base station, comprising:

a determining module, configured to determine interference suppression capability information of a terminal, where the interference suppression capability information includes: at least one of cross link interference suppression capability information and self-interference suppression capability information;

and the scheduling module is used for scheduling the downlink receiving of the terminal and the uplink sending of each terminal so that the interference suffered by the terminal does not exceed the interference suppression capability of the terminal.

23. A terminal, comprising:

the reporting module is configured to report interference suppression capability information to a base station, where the interference suppression capability information includes: at least one of cross link interference suppression capability information and self-interference suppression capability information;

and the transmission module is used for carrying out downlink receiving and/or uplink sending according to the scheduling information sent by the base station, wherein the scheduling information sent by the base station enables the interference suffered by the terminal not to exceed the interference suppression capability of the terminal.

24. A communication apparatus, comprising:

a processor; and

a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform the disturbance avoidance method of any of claims 1-21.

25. An interference avoidance system, comprising: the base station of claim 22 and the terminal of claim 23.