A communication method and apparatus

Abstract

The application discloses a communication method and device, relates to the field of communication, and can make the polarization scheduling more flexible and improve the spectrum efficiency. The communication method comprises the following steps: a second communication device determines first indication information and sends the first indication information. The first indication information is carried in terminal-level information, and the first indication information is used for indicating a first polarization mode of a first communication device. The first polarization mode comprises any one of the following: left circular polarization, right circular polarization, linear polarization or cross-polarization multiplexing. In this way, the second communication device can schedule the polarization mode of the first communication device at the terminal level, that is, the second communication device can adjust the polarization mode of a certain first communication device, so that the polarization mode scheduling of the first communication device is more flexible, the granularity of the scheduling is finer, and therefore the spectrum efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to a communication method and device. BACKGROUND

[0002] When electromagnetic waves propagate in space, if the direction of the electric field vector remains fixed or rotates according to a certain rule, such electromagnetic waves are called polarized electromagnetic waves. Among them, if the direction of the electric field vector of the electromagnetic wave remains perpendicular to the horizontal plane, it is called vertically polarized electromagnetic wave, if the direction of the electric field vector of the electromagnetic wave remains parallel to the horizontal plane, it is called horizontally polarized electromagnetic wave. If the point-out vector of the electromagnetic wave changes to form a circle, it is called circularly polarized electromagnetic wave. As shown in the figure, according to the rotation direction of the circle formed by the point-out vector of the electromagnetic wave, the circularly polarized electromagnetic wave can be divided into left-hand circularly polarized (LHCP) electromagnetic wave and right-hand circularly polarized (RHCP) electromagnetic wave. Figure 1

[0003] In a communication system, according to the polarization direction of the electromagnetic wave transmitted between devices, two devices can communicate in different polarization modes, for example, a network device and a terminal device can communicate based on a vertical polarization mode, which means that the electromagnetic wave transmitted between the network device and the terminal device is a vertically polarized electromagnetic wave.

[0004] Currently, in the process of scheduling the polarization mode of terminal devices in a cell by a network device, there are still problems of inflexible scheduling and low spectrum efficiency, so the process of scheduling the polarization mode of terminal devices needs to be optimized. SUMMARY

[0005] The present application provides a communication method and device, which can make the polarization mode scheduling more flexible and improve the spectrum efficiency.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a communication method, which can be applied to a second communication device, for example, a network device, such as an access network device (such as a base station, a satellite, etc.). The communication method comprises: determining first indication information by the second communication device, and transmitting the first indication information. Wherein, the first indication information is carried in terminal level information, and the first indication information is used to indicate the first polarization mode of the first communication device, and the first polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization or cross-polarization multiplexing.

[0008] ​The communication method of the first aspect can be known, the first indication information can schedule the polarization mode of the first communication device, and the first indication information is carried in terminal-level information, such as radio resource control (RRC) signaling, downlink control information (DCI), and the like. In this way, the second communication device can schedule the polarization mode of the first communication device at the terminal level, that is, the second communication device can adjust the polarization mode of a certain first communication device, so that the polarization mode of the first communication device is more flexible and has finer granularity, thereby improving the spectral efficiency.

[0009] The terminal-level information can also be referred to as terminal-level signaling, or user equipment (UE) specific signaling, or UE-level information, and the like. The embodiments of the present application are not limited in this regard.

[0010] In a possible implementation, the communication method of the first aspect can further include: determining, by the second communication device, second indication information, and transmitting the second indication information. The second indication information is used to indicate the polarization mode of a neighboring cell of a cell where the first communication device is located. The polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. In this way, through the second indication information, the first communication device can obtain the polarization mode of the neighboring cell in advance, that is, the polarization mode used when performing signal quality measurement on the neighboring cell can be obtained in advance. Therefore, when performing cell switching, the first communication device can perform signal quality measurement on the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, so as to realize cell switching, improve the success rate of cell switching, avoid requesting the polarization mode of the neighboring cell from the second communication device during switching, and accelerate the speed of cell switching.

[0011] The linear polarization can include any one of horizontal polarization, vertical polarization, +45° polarization, and -45° polarization. The cross-polarization multiplexing can include any one of horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing, and left-hand-right-hand circular polarization cross-polarization multiplexing (LHCP&RHCP Multiplexing). In other words, the first polarization mode can include any one of left-hand circular polarization, right-hand circular polarization, horizontal polarization, vertical polarization, +45° polarization, -45° polarization, horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing, and left-hand-right-hand circular polarization cross-polarization multiplexing. In addition, the polarization mode of the neighboring cell indicated by the second indication information includes the same elements as the first polarization mode, which will not be described herein.

[0012] Optionally, the second indication information is further used for indicating the polarization mode of a neighbor cell of the cell in which the first communication apparatus in the first state, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information. In this way, through the second indication information, the first communication apparatus in the connected state or the inactive state can obtain the polarization mode of the neighbor cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighbor cell in advance, so that when performing cell switching, the first communication apparatus can perform signal quality measurement on the neighbor cell based on the polarization mode of the neighbor cell indicated by the second indication information, to realize cell switching, can improve the success rate of cell switching, avoid requesting the polarization mode of the neighbor cell from the second communication apparatus when switching, and can speed up the cell switching speed.

[0013] Optionally, the second indication information is further used for indicating the polarization mode of a neighbor cell of the cell in which the first communication apparatus in the second state, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information. In this way, through the second indication information, the first communication apparatus in the inactive state or the idle state can obtain the polarization mode of the neighbor cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighbor cell in advance, so that when performing cell reselection, the first communication apparatus can perform signal quality measurement on the neighbor cell based on the polarization mode of the neighbor cell indicated by the second indication information, to realize cell reselection, can improve the success rate of cell reselection, avoid requesting the polarization mode of the neighbor cell from the second communication apparatus when reselecting, and can speed up the cell reselection speed. Optionally, the cell-level information can be system information block (SIB).

[0014] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of synchronization signal and PBCH blocks (SSBs) and a plurality of polarization modes. In other words, the second communication apparatus can configure the correspondence between the indexes of the SSBs and the polarization modes for the first communication apparatus in advance, so that the second communication apparatus can also implicitly indicate the polarization mode of the first communication apparatus through the indexes of the SSBs, thereby further simplifying the complexity of the second communication apparatus in indicating the polarization mode of the first communication apparatus.

[0015] In a possible implementation, the first indication information is further used to indicate a duration of the first polarization mode. In other words, the second communication device can indicate the first communication device to work in the first polarization mode for a duration, and the first communication device can return to the previous polarization mode after the duration indicated by the first indication information expires. In this way, the second communication device can not need to indicate the first communication device to return to the previous polarization mode through another indication signaling, signaling overhead can be saved, and the second communication device can avoid waiting for a long time for feedback of the indication signaling by the first communication device. In addition, flexibility of scheduling of the polarization mode of the first communication device can be further improved.

[0016] In a possible implementation, the first indication information is determined according to one or more of the following: a polarization mode supported by the first communication device, channel state information (CSI) of channels of different polarization modes measured by the first communication device, a service requirement of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and crosstalk between orthogonal polarization channels. In this way, the second communication device can determine a polarization mode more suitable for the first communication device in combination with multiple types of information, and schedule the polarization mode for the first communication device through the first indication information, which can enable the first communication device to work in a better polarization mode, thereby improving communication quality and reducing power consumption, and can make scheduling of the polarization mode of the first communication device more flexible and have a finer granularity, thereby improving spectrum efficiency.

[0017] In a possible implementation, the terminal-level information can be RRC signaling.

[0018] Optionally, the terminal-level information can also be any one of the following: media access control control element (MAC CE), channel state information reference signal (CSI-RS), DCI, and the like.

[0019] In a possible implementation, the first indication information can be one or more of the following: a carrier of the CSI-RS, a resource element (RE), and the like, and one or more of the carrier and the RE are used to indicate the first polarization mode. The carrier can also be understood as a carrier wave, which is not limited in this regard.

[0020] In a possible implementation, the communication method of the first aspect further includes: determining, by the second communication device, third indication information, and sending the third indication information. The third indication information is used to indicate a polarization mode of a neighboring beam of the beam in which the first communication device is located, and the polarization mode of the neighboring beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. In this way, through the third indication information, the first communication device can obtain the polarization mode of the neighboring beam in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighboring beam, so that when performing beam switching, the first communication device can perform signal quality measurement on the neighboring beam based on the polarization mode of the neighboring beam indicated by the third indication information, to implement beam switching, can improve the success rate of beam switching, avoid requesting the polarization mode of the neighboring beam from the second communication device when switching, and can speed up the beam switching speed.

[0021] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource. In this way, resource units with different polarization modes but the same time-frequency resources can be allocated to different first communication devices, which can avoid interference between communication devices, improve the utilization rate of resources, improve communication efficiency, and improve the flexibility of resource scheduling.

[0022] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource. In this way, resource units with different polarization modes but the same time-frequency resources can be allocated to different first communication devices, which can avoid interference between communication devices, improve the utilization rate of resources, improve communication efficiency, and improve the flexibility of resource scheduling.

[0023] In a possible implementation, the communication method of the second aspect further includes: receiving, by the first communication device, second indication information of the second communication device. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell in which the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0024] Optionally, the second indication information is also used to indicate the polarization mode of the neighboring cell of the cell in which the first communication device in the first state is located, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information.

[0025] Optionally, the second indication information is further used to indicate a polarization mode of a neighboring cell of a cell where the first communication device in the second state is located, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information. Optionally, the cell-level information can be a SIB.

[0026] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of SSBs and a plurality of polarization modes.

[0027] In a possible implementation, the first indication information is further used to indicate a duration of the first polarization mode.

[0028] In a possible implementation, the first indication information is determined according to one or more of the following: a polarization mode supported by the first communication device, channel state information of channels of different polarization modes measured by the first communication device, a service requirement of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and a crosstalk condition between orthogonal polarization channels.

[0029] In a possible implementation, the terminal-level information can be RRC signaling.

[0030] Optionally, the terminal-level information can also be any one of a MAC CE, a CSI-RS, a DCI, and the like.

[0031] In a possible implementation, the communication method of the second aspect can further include: receiving, by the first communication device, third indication information of the second communication device. The third indication information is used to indicate a polarization mode of a neighboring beam of a beam where the first communication device is located, and the polarization mode of the neighboring beam can include one or more of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing.

[0032] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource.

[0033] It should be noted that the technical effects of the communication method of the second aspect can refer to the technical effects of the communication method of the first aspect, which will not be described here.

[0034] In a third aspect, the present application provides a communication method, which can be applied to a second communication device, for example, an access network device (such as a base station). The communication method includes: determining, by the second communication device, fourth indication information, and transmitting the fourth indication information. The fourth indication information is used to indicate a second polarization mode of a first beam, and the second polarization mode includes any one of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing.

[0035] According to the communication method of the third aspect, the fourth indication information can indicate the second polarization mode of the first beam, so that the second communication device can schedule the polarization mode of the first communication device at a beam level, that is, the second communication device can adjust the polarization mode of the first communication device in a certain beam, so that the polarization mode of the first communication device is more flexible and has finer granularity, thereby improving the spectrum efficiency.

[0036] In a possible implementation, the fourth indication information includes an index of an SSB, and the index of the SSB corresponds to the second polarization mode; or the fourth indication information includes a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0037] In a possible implementation, the communication method of the third aspect can further include that the second communication device sends a first mapping relationship. The first mapping relationship includes a mapping relationship between an index of at least one SSB and at least one polarization mode; or the first mapping relationship includes a mapping relationship between a time-frequency location of at least one CSI-RS and at least one polarization mode.

[0038] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0039] In a possible implementation, the communication method of the third aspect can further include that the second communication device determines second indication information and sends the second indication information. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. In this way, through the second indication information, the first communication device can obtain the polarization mode of the neighboring cell in advance, that is, can obtain the polarization mode used when measuring the signal quality of the neighboring cell, so that when performing cell switching, the first communication device can measure the signal quality of the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, to realize cell switching, and can improve the success rate of cell switching, avoid requesting the polarization mode of the neighboring cell from the second communication device when switching, and can speed up the cell switching speed.

[0040] The linear polarization can include any one of horizontal polarization, vertical polarization, +45° polarization, and -45° polarization. The cross-polarization multiplexing can include any one of horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing, and left-handed-right-handed circular polarization cross-polarization multiplexing. In other words, the second polarization mode can include any one of left-handed circular polarization, right-handed circular polarization, horizontal polarization, vertical polarization, +45° polarization, -45° polarization, horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing, and left-handed-right-handed circular polarization cross-polarization multiplexing. In addition, the polarization mode of the neighboring cell indicated by the second indication information includes the same elements as the second polarization mode, and thus will not be described herein.

[0041] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell in which the first communication device in the first state is located, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information. In this way, through the second indication information, the first communication device in the connected state or the inactive state can obtain the polarization mode of the neighboring cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighboring cell in advance, so that when performing cell switching, the first communication device can perform signal quality measurement on the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, to realize cell switching, can improve the success rate of cell switching, avoid requesting the polarization mode of the neighboring cell from the second communication device when switching, and can speed up the cell switching speed.

[0042] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell in which the first communication device in the second state is located, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information. In this way, through the second indication information, the first communication device in the inactive state or the idle state can obtain the polarization mode of the neighboring cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighboring cell in advance, so that when performing cell reselection, the first communication device can perform signal quality measurement on the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, to realize cell reselection, can improve the success rate of cell reselection, avoid requesting the polarization mode of the neighboring cell from the second communication device when reselecting, and can speed up the cell reselection speed.

[0043] In a possible implementation, the fourth indication information is further used to indicate a duration of the second polarization mode. In other words, the second communication device can indicate a duration for which all the first communication devices in the first beam work in the second polarization mode, and after the duration indicated by the fourth indication information expires, all the first communication devices in the first beam can return to the previous polarization mode. In this way, the second communication device can not need to indicate the first communication devices in the first beam to return to the previous polarization mode through one indication signaling again, and signaling overhead can be saved. Moreover, flexibility of scheduling the polarization mode of the first communication devices can be further improved.

[0044] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, expected polarization modes of all the first communication devices in the first beam, weather conditions in a coverage range of the first beam, and crosstalk conditions between all the orthogonally polarized channels in the first beam. In this way, the second communication device can determine a polarization mode that is more suitable for all the first communication devices in the first beam in combination with multiple types of information, and schedule the polarization mode for all the first communication devices in the first beam through the fourth indication information, which can enable all the first communication devices in the first beam to work in a better polarization mode, thereby improving communication quality and reducing power consumption, and can make the polarization mode scheduling of all the first communication devices in the first beam more flexible and have a finer granularity, thereby improving spectrum efficiency.

[0045] In a possible implementation, the communication method of the third aspect can further include: determining, by the second communication device, third indication information, and sending the third indication information. The third indication information is used to indicate a polarization mode of a neighbor beam of a beam in which the first communication device is located, and the polarization mode of the neighbor beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. In this way, through the third indication information, the first communication device can obtain the polarization mode of the neighbor beam in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighbor beam, so that when performing beam switching, the first communication device can perform signal quality measurement on the neighbor beam based on the polarization mode of the neighbor beam indicated by the third indication information, to implement beam switching, and the beam switching success rate can be improved, and the polarization mode of the neighbor beam does not need to be requested from the second communication device again when switching, which can speed up the beam switching speed.

[0046] In a fourth aspect, the present application provides a communication method, which can be applied to a first communication device, such as a mobile phone, a vehicle, an Internet of Things device, etc. The communication method comprises: receiving, by the first communication device, fourth indication information of a second communication device. The fourth indication information is used to indicate a second polarization mode of a first beam, and the second polarization mode comprises any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The first communication device communicates with the second communication device based on the second polarization mode.

[0047] In a possible implementation, the fourth indication information comprises an index of an SSB, and the index of the SSB corresponds to the second polarization mode; or the fourth indication information comprises a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0048] In a possible implementation, the communication method of the fourth aspect further comprises: receiving, by the first communication device, a first mapping relationship from the second communication device. The first mapping relationship comprises a mapping relationship between an index of at least one SSB and at least one polarization mode; or the first mapping relationship comprises a mapping relationship between a time-frequency location of at least one CSI-RS and at least one polarization mode.

[0049] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0050] In a possible implementation, the communication method of the fourth aspect further comprises: receiving, by the first communication device, second indication information of the second communication device. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell in which the first communication device is located, and the polarization mode of the neighboring cell can comprise one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0051] Optionally, the second indication information is also used to indicate the polarization mode of the neighboring cell of the cell in which the first communication device is located in a first state, and the first state can comprise a connected state or an inactive state. The second indication information is carried in terminal-level information.

[0052] Optionally, the second indication information is also used to indicate the polarization mode of the neighboring cell of the cell in which the first communication device is located in a second state, and the second state can comprise an inactive state or an idle state. The second indication information is carried in cell-level information.

[0053] In a possible implementation, the fourth indication information is also used to indicate a duration of the second polarization mode.

[0054] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, polarization modes expected by all the first communication devices in the first beam, weather conditions in the coverage of the first beam, and crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0055] In a possible implementation, the communication method of the fourth aspect can further include: receiving, by the first communication device, third indication information. The third indication information is used to indicate polarization modes of neighboring beams of a beam where the first communication device is located, and the polarization modes of the neighboring beams can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0056] It should be noted that the technical effects of the communication method of the fourth aspect can refer to those of the communication method of the third aspect, which will not be repeated here.

[0057] In a fifth aspect, a second communication device is provided. The second communication device includes a processing module and a transceiver module. The processing module is configured to determine first indication information. The first indication information is carried in terminal-level information, and is used to indicate a first polarization mode of a first communication device, the first polarization mode including any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module is configured to transmit the first indication information.

[0058] In some possible designs, the processing module is further configured to determine second indication information. The second indication information is used to indicate polarization modes of neighboring cells of a cell where the first communication device is located, and the polarization modes of the neighboring cells can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module is further configured to transmit the second indication information.

[0059] Optionally, the second indication information is further used to indicate polarization modes of neighboring cells of a cell where the first communication device is located in a first state, and the first state can include a connected state or an inactive state. The second indication information is carried in terminal-level information.

[0060] Optionally, the second indication information is further used to indicate polarization modes of neighboring cells of a cell where the first communication device is located in a second state, and the second state can include an inactive state or an idle state. The second indication information is carried in cell-level information. Optionally, the cell-level information can be a SIB.

[0061] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of SSBs and a plurality of polarization modes.

[0062] In a possible implementation, the first indication information is further used to indicate a time length of the first polarization mode.

[0063] In a possible implementation, the first indication information is determined according to one or more of the following: a polarization mode supported by the first communication device, a CSI of a channel of a different polarization mode measured by the first communication device, a service requirement of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and a crosstalk condition between orthogonal polarization channels.

[0064] In a possible implementation, the terminal-level information can be RRC signaling.

[0065] Optionally, the terminal-level information can also be any one of a MAC CE, a CSI-RS, a DCI, and the like.

[0066] In a possible implementation, the first indication information can be one or more of a carrier frequency of a CSI-RS, a RE, one or more of a carrier frequency, and a resource unit, which are used to indicate the first polarization mode.

[0067] In a possible implementation, the processing module is further configured to determine third indication information, where the third indication information is used to indicate a polarization mode of a neighboring beam of a beam in which the first communication device is located, and the polarization mode of the neighboring beam can include one or more of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or a cross-polarization multiplexing. The transceiver module is further configured to transmit the third indication information.

[0068] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource.

[0069] Optionally, the transceiver module can include a receiving module and a transmitting module. The receiving module is configured to implement the receiving function of the second communication device in the fifth aspect, and the transmitting module is configured to implement the transmitting function of the second communication device in the fifth aspect.

[0070] Optionally, the second communication device in the fifth aspect can further include a storage module that stores a program or an instruction. When the processing module executes the program or the instruction, the second communication device can execute the communication method in the first aspect.

[0071] It should be noted that the second communication device in the fifth aspect can be a network device, for example, an access network device (such as a base station, a satellite, and the like), a chip (system) or other components or assemblies arranged in the network device, or a second communication device containing the network device, and the present application does not limit the same.

[0072] In addition, the technical effects of the second communication device in the fifth aspect can refer to the technical effects of the communication method in the first aspect, which will not be described herein.

[0073] In a sixth aspect, a first communication device is provided. The first communication device includes a transceiver and a processing module. The transceiver is configured to receive first indication information of a second communication device. The first indication information is used to indicate a first polarization mode of the first communication device, and the first polarization mode includes any one of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing. The first indication information is carried in terminal-level information. The processing module is configured to communicate with the second communication device based on the first polarization mode.

[0074] In a possible implementation, the transceiver is further configured to receive second indication information of the second communication device. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located. The polarization mode of the neighboring cell can include one or more of the left-hand circular polarization, the right-hand circular polarization, the linear polarization, or the cross-polarization multiplexing.

[0075] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a first state. The first state can include a connected state or an inactive state. The second indication information is carried in the terminal-level information.

[0076] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a second state. The second state can include an inactive state or an idle state. The second indication information is carried in cell-level information. Optionally, the cell-level information can be a SIB.

[0077] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of SSBs and a plurality of polarization modes.

[0078] In a possible implementation, the first indication information is further used to indicate a duration of the first polarization mode.

[0079] In a possible implementation, the first indication information is determined according to one or more of the following: a polarization mode supported by the first communication device, channel state information of channels of different polarization modes measured by the first communication device, a service requirement of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and a crosstalk condition between orthogonal polarization channels.

[0080] In a possible implementation, the terminal-level information can be RRC signaling.

[0081] Optionally, the terminal-level information can also be any one of a MAC CE, a CSI-RS, a DCI, and the like.

[0082] In a possible implementation, the transceiver module is further configured to receive third indication information of the second communication device. The third indication information is used to indicate a polarization mode of a neighboring beam of the beam in which the first communication device is located, and the polarization mode of the neighboring beam can include one or more of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing.

[0083] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource.

[0084] Optionally, the transceiver module can include a receiving module and a sending module. The receiving module is configured to implement the receiving function of the first communication device according to the sixth aspect, and the sending module is configured to implement the sending function of the first communication device according to the sixth aspect.

[0085] Optionally, the first communication device according to the sixth aspect can further include a storage module that stores a program or an instruction. When the processing module executes the program or the instruction, the first communication device can execute the communication method according to the second aspect.

[0086] It should be noted that the first communication device according to the sixth aspect can be a terminal device, for example, a mobile phone, a vehicle, an Internet of Things device, and the like, or a chip (system) or other components or assemblies arranged in the terminal device, or a first communication device including the terminal device, and the present application does not limit the same.

[0087] In addition, the technical effects of the first communication device according to the sixth aspect can refer to the technical effects of the communication method according to the second aspect, which will not be described herein again.

[0088] According to a seventh aspect, a second communication device is provided. The second communication device includes a processing module and a transceiver module. The processing module is configured to determine fourth indication information. The fourth indication information is used to indicate a second polarization mode of a first beam, and the second polarization mode includes any one of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing. The transceiver module is configured to send the fourth indication information.

[0089] In a possible implementation, the fourth indication information includes an index of an SSB, and the index of the SSB corresponds to the second polarization mode; or the fourth indication information includes a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0090] In a possible implementation, the transceiving module is further configured to send the first mapping relationship. The first mapping relationship includes a mapping relationship between indexes of the at least one SSB and the at least one polarization mode; or the first mapping relationship includes a mapping relationship between time-frequency locations of the at least one CSI-RS and the at least one polarization mode.

[0091] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0092] In a possible implementation, the processing module is further configured to determine second indication information. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiving module is further configured to send the second indication information.

[0093] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a first state, and the first state can include a connected state or an inactive state. The second indication information is carried in terminal-level information.

[0094] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a second state, and the second state can include an inactive state or an idle state. The second indication information is carried in cell-level information.

[0095] In a possible implementation, the fourth indication information is further used to indicate a duration of the second polarization mode.

[0096] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, polarization modes expected by all the first communication devices in the first beam, weather conditions in a coverage range of the first beam, and crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0097] In a possible implementation, the processing module is further configured to determine third indication information. The third indication information is used to indicate a polarization mode of a neighboring beam of a beam where the first communication device is located, and the polarization mode of the neighboring beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiving module is further configured to send the third indication information.

[0098] Optionally, the transceiver module can include a receiving module and a transmitting module. The receiving module is configured to implement the receiving function of the second communication apparatus of the seventh aspect, and the transmitting module is configured to implement the transmitting function of the second communication apparatus of the seventh aspect.

[0099] Optionally, the second communication apparatus of the seventh aspect can further include a storage module storing a program or instructions. When the processing module executes the program or instructions, the second communication apparatus can execute the communication method of the third aspect.

[0100] It should be noted that the second communication apparatus of the seventh aspect can be a network device, which can be an access network device (such as a base station, a satellite, etc.), a chip (system) or other components or assemblies arranged in the network device, or a second communication apparatus containing the network device, which is not limited in the present application.

[0101] In addition, the technical effects of the second communication apparatus of the seventh aspect can refer to the technical effects of the communication method of the third aspect, which will not be repeated here.

[0102] In the eighth aspect, a first communication apparatus is provided. The first communication apparatus includes a transceiver module and a processing module. The transceiver module is configured to receive fourth indication information of a second communication apparatus. The fourth indication information is used to indicate a second polarization mode of a first beam, and the second polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The processing module is configured to communicate with the second communication apparatus based on the second polarization mode.

[0103] In a possible implementation, the fourth indication information includes an index of an SSB, and the index of the SSB corresponds to the second polarization mode; or the fourth indication information includes a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0104] In a possible implementation, the transceiver module is further configured to receive second indication information of the second communication apparatus. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication apparatus is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0105] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0106] In a possible implementation, the transceiving module is further configured to receive second indication information. The second indication information is used to indicate the polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0107] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the first state is located, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information.

[0108] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the second state is located, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information.

[0109] In a possible implementation, the fourth indication information is further used to indicate a duration of the second polarization mode.

[0110] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, polarization modes expected by all the first communication devices in the first beam, weather conditions in a coverage range of the first beam, and crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0111] In a possible implementation, the transceiving module is further configured to receive third indication information. The third indication information is used to indicate the polarization mode of a neighboring beam of a beam where the first communication device is located, and the polarization mode of the neighboring beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0112] Optionally, the transceiving module can include a receiving module and a sending module. The receiving module is configured to implement the receiving function of the first communication device in the eighth aspect, and the sending module is configured to implement the sending function of the first communication device in the eighth aspect.

[0113] Optionally, the first communication device in the eighth aspect can further include a storage module that stores a program or instructions. When the processing module executes the program or instructions, the first communication device can execute the communication method in the fourth aspect.

[0114] It should be noted that the first communication device in the eighth aspect can be a terminal device, which can be a mobile phone, a vehicle, an Internet of Things device, or the like, can be a chip (system) or other components or assemblies arranged in the terminal device, or can be a device including the terminal device, and the present application does not limit the same.

[0115] In addition, the technical effects of the first communication device in the eighth aspect can refer to the technical effects of the communication method in the fourth aspect, which will not be repeated here.

[0116] In the ninth aspect, a communication device is provided. The communication device is configured to perform the communication method in any one of the first to fourth aspects.

[0117] In the present application, the communication device in the ninth aspect can be a terminal device or a network device, or can be a chip (system) or other components or assemblies arranged in the terminal device or the network device, or can be a device including the terminal device or the network device, and the present application does not limit the same. The network device is configured to perform the communication method in any one of the first aspect or the third aspect, and the terminal device is configured to perform the communication method in any one of the second aspect or the fourth aspect.

[0118] It should be understood that the communication device in the ninth aspect includes a module, unit, or means corresponding to the communication method in any one of the first to fourth aspects, which can be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units for performing the functions involved in the communication method.

[0119] In the tenth aspect, a communication device is provided. The communication device includes a processor configured to perform the communication method in any one of the first to fourth aspects.

[0120] In a possible design, the communication device in the tenth aspect can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be configured to enable the communication device in the tenth aspect to communicate with other communication devices.

[0121] In a possible design, the communication device in the tenth aspect can further include a memory. The memory can be integrated with the processor, or can be separately arranged. The memory can be configured to store a computer program and / or data involved in the communication method in any one of the first to fourth aspects.

[0122] In the present application, the communication apparatus of the tenth aspect can be a terminal device or a network device, or a chip (system) or other components or assemblies arranged in the terminal device or the network device, or an apparatus containing the terminal device or the network device, and the present application does not limit the same. The network device is configured to perform the communication method of any possible implementation manner of the first aspect or the third aspect, and the terminal device is configured to perform the communication method of any possible implementation manner of the second aspect or the fourth aspect.

[0123] The eleventh aspect provides a communication apparatus. The communication apparatus includes a processor coupled with a memory, and the processor is configured to execute a computer program stored in the memory, so that the communication apparatus performs the communication method of any possible implementation manner of the first aspect to the fourth aspect.

[0124] In a possible design, the communication apparatus of the eleventh aspect can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be configured to enable the communication apparatus of the eleventh aspect to communicate with other communication apparatuses.

[0125] In the present application, the communication apparatus of the eleventh aspect can be a terminal device or a network device, or a chip (system) or other components or assemblies arranged in the terminal device or the network device, or an apparatus containing the terminal device or the network device, and the present application does not limit the same. The network device is configured to perform the communication method of any possible implementation manner of the first aspect or the third aspect, and the terminal device is configured to perform the communication method of any possible implementation manner of the second aspect or the fourth aspect.

[0126] The twelfth aspect provides a communication apparatus. The communication apparatus includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit the code instructions to the processor. The processor is configured to run the code instructions to perform the communication method of any possible implementation manner of the first aspect to the fourth aspect.

[0127] In a possible design, the communication apparatus of the twelfth aspect can further include a memory. The memory can be integrated with the processor, or can be arranged separately. The memory can be configured to store a computer program and / or data related to the communication method of any aspect of the first aspect to the fourth aspect.

[0128] In the present application, the communication apparatus of the twelfth aspect can be a terminal device or a network device, or a chip (system) or other components or assemblies arranged in the terminal device or the network device, or an apparatus containing the terminal device or the network device, and the present application does not limit the same. The network device is configured to perform the communication method of any possible implementation manner of the first aspect or the third aspect, and the terminal device is configured to perform the communication method of any possible implementation manner of the second aspect or the fourth aspect.

[0129] The thirteenth aspect provides a communication apparatus. The communication apparatus includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the communication method of any possible implementation manner of the first aspect to the fourth aspect is implemented.

[0130] In the present application, the communication apparatus of the thirteenth aspect can be a terminal device or a network device, or a chip (system) or other components or assemblies arranged in the terminal device or the network device, or an apparatus containing the terminal device or the network device, and the present application does not limit the same. The network device is configured to perform the communication method of any possible implementation manner of the first aspect or the third aspect, and the terminal device is configured to perform the communication method of any possible implementation manner of the second aspect or the fourth aspect.

[0131] The fourteenth aspect provides a processor. The processor is configured to perform the communication method of any possible implementation manner of the first aspect to the fourth aspect.

[0132] The fifteenth aspect provides a communication system. The communication system includes a terminal device and a network device, and the network device can include an access network device and a core network device. The network device is configured to perform the communication method of any possible implementation manner of the first aspect or the third aspect, and the terminal device is configured to perform the communication method of any possible implementation manner of the second aspect or the fourth aspect.

[0133] The sixteenth aspect provides a computer readable storage medium, which includes a computer program or instructions. When the computer program or instructions are executed by a processor, the communication method of any possible implementation manner of the first aspect to the fourth aspect is implemented.

[0134] The seventeenth aspect provides a computer program product, which includes instructions. When the instructions are executed by a processor, the communication method of any possible implementation manner of the first aspect to the fourth aspect is implemented.

[0135] In an eighteenth aspect, a chip is provided, which includes processing logic circuitry and interface circuitry. The number of the processing logic circuitry can be one or more, and the number of the interface circuitry can be multiple.

[0136] The interface circuitry is configured to receive code instructions and transmit the code instructions to the processing logic circuitry. The processing logic circuitry is configured to execute the code instructions to implement the communication method according to any one of the first aspect to the fourth aspect.

[0137] Optionally, the chip can include a memory, which can be integrated with the processing logic circuitry or separately arranged. The memory can be configured to store a computer program and / or data related to the communication method according to any one of the first aspect to the fourth aspect.

[0138] In the present application, the chip according to the eighteenth aspect can be located in a terminal device or a network device, and can be located in a terminal device or a network device in a communication system. When the chip is located in the network device, it is configured to implement the communication method according to any one of the first aspect or the third aspect. When the chip is located in the terminal device, it is configured to implement the communication method according to any one of the second aspect or the fourth aspect.

[0139] The technical effects brought by any one of the fifth aspect to the eighteenth aspect can refer to the technical effects brought by the corresponding implementation of any one of the first aspect to the fourth aspect, which will not be repeated here.

[0140] On the basis of the implementation manners of the above aspects, the present application can be further combined to provide more implementation manners. BRIEF DESCRIPTION OF DRAWINGS

[0141] Figure 1 A circular polarization diagram provided for the embodiments of the present application;

[0142] Figure 2 A four-color multiplexing diagram provided for the embodiments of the present application;

[0143] Figure 3 An architecture diagram of a communication system provided for the embodiments of the present application;

[0144] Figure 4 Another architecture diagram of a communication system provided for the embodiments of the present application;

[0145] Figure 5 A structure diagram of a communication device provided for the embodiments of the present application;

[0146] Figure 6 A flowchart of a communication method provided for the embodiments of the present application Figure 1 ;

[0147] Figure 7 A resource mapping diagram provided by the embodiment of the present application in a certain beam combined with a polarization mode;

[0148] Figure 8 A diagram provided by the embodiment of the present application for forming a virtual sub-beam in space in a unit of UE in a certain beam through RRM;

[0149] Figure 9 A beam diagram in a cell provided by the embodiment of the present application;

[0150] Figure 10 A flowchart of the communication method of the embodiment of the present application Figure 2 ;

[0151] Figure 11 A flowchart of the communication method of the embodiment of the present application Figure 3 ;

[0152] Figure 12 A flowchart of the communication method of the embodiment of the present application Figure 4 ;

[0153] Figure 13 An RRC state conversion diagram provided by the embodiment of the present application;

[0154] Figure 14 A flowchart of the communication method of the embodiment of the present application Figure 5 ;

[0155] Figure 15 A flowchart of the communication method of the embodiment of the present application Figure 6 ;

[0156] Figure 16 A structure diagram of a communication device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0157] In order to facilitate the understanding of the scheme in the embodiment of the present application, first, a brief introduction of related technologies is given.

[0158] 1. Polarization mode:

[0159] The polarization mode used when two devices in a communication system communicate can include linear polarization, circular polarization, and cross-polarization multiplexing. Among them, linear polarization can include horizontal polarization, vertical polarization, +45° polarization, and -45° polarization, and circular polarization can include left-handed circular polarization and right-handed circular polarization.

[0160] 2. Cross-polarization multiplexing:

[0161] In the current communication system, in order to improve the communication efficiency, two mutually orthogonal polarized electromagnetic waves can also be used for communication at the same time, which can be referred to as cross-polarization multiplexing. Cross-polarization multiplexing can also be referred to as polarization multiplexing and similar concepts. The embodiments of the present application are not limited in this regard.

[0162] The cross-polarization multiplexing can include horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing, and left-handed-right-handed circular polarization cross-polarization multiplexing. For example, horizontal-vertical cross-polarization multiplexing means that the network device and the terminal device can use horizontal polarized electromagnetic waves and vertical polarized electromagnetic waves for communication at the same time in a frequency band. In addition, linear polarization, circular polarization, and other polarization modes using one polarization direction of electromagnetic waves can be referred to as single polarization mode.

[0163] The current cross-polarization multiplexing can also be applied to multi-color multiplexing. Taking four-color multiplexing as an example, Figure 2 A four-color multiplexing diagram provided by the embodiments of the present application is shown in FIG. 1. Figure 2 As shown in FIG. 1, a cell of an access network device (such as a satellite, a base station, etc.) can use frequency division to achieve four-color multiplexing, or use frequency division and polarization division to achieve four-color multiplexing. The following will be described respectively.

[0164] For frequency division to achieve four-color multiplexing, the frequency band used in a cell can be divided into four frequency bands, and the four frequency bands correspond to four beams f1, f2, f3, and f4 respectively. The four beams are arranged in the cell according to the rule shown in FIG. 2. Figure 2

[0165] For frequency division and polarization division to achieve four-color multiplexing, the frequency band used in a cell can be divided into two frequency bands, and the two frequency bands correspond to two beams, one frequency band corresponds to f1 and f2, and the other frequency band corresponds to f3 and f4. In addition, the polarization modes used by f1 and f2 are different, the polarization modes used by f3 and f4 are different, f1 uses RHCP, f2 uses LHCP, f3 uses RHCP, and f4 uses LHCP. The four beams are arranged in the cell according to the rule shown in FIG. 3. Figure 2

[0166] As can be seen, when using frequency division and polarization division to achieve four-color multiplexing, the frequency spectrum resource utilization rate of the cell can be doubled, thereby improving the communication efficiency.

[0167] ​​Currently, a network device can schedule a polarization mode of a cell, so that terminal devices in the cell can work in the same better polarization mode. Specifically, when scheduling the polarization mode of the terminal devices to switch the polarization mode of the terminal devices, the network device usually instructs all terminal devices in the cell to switch the polarization mode from one polarization mode to another polarization mode by using a SIB. However, this scheduling mode can only schedule all terminal devices in the cell and cannot schedule individual terminal devices, and has the problems of inflexible scheduling and low spectrum efficiency. In addition, since the SIB is periodic, the next SIB period needs to be waited for each time of scheduling, and there is the problem of not timely scheduling.

[0168] To solve the above problems, an embodiment of the present application provides a technical solution, which includes a communication system, a communication method applied to the communication system, and a communication device, etc. The technical solution provided by the present application will be described below in conjunction with the drawings.

[0169] The technical solution of the embodiment of the present application can be applied to a wireless communication system, for example: the wireless communication system can be a fourth generation (4th generation, 4G) communication system (for example, a long term evolution (long term evolution, LTE) system), a fifth generation (5th generation, 5G) communication system (for example, a new radio (new radio, NR) system), and a future mobile communication system, etc. The technical solution of the embodiment of the present application can also be applied to a satellite communication system or a non-terrestrial network (non-terrestrial network, NTN) communication system, wherein the satellite communication system or the NTN communication system can be integrated with the wireless communication system.

[0170] The present application will present various aspects, embodiments or features around a system that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc. discussed in conjunction with the drawings. In addition, combinations of these solutions can also be used.

[0171] In addition, in the embodiments of the present application, the words such as "example", "for example" and the like are used to represent as an example, illustration or description. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific manner.

[0172] In the embodiments of the present application, the subscript such as W1 may be mistakenly used in the form of non-subscript such as W1, and when its difference is not emphasized, the meanings expressed by them are consistent.

[0173] The network architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. It can be known by those skilled in the art that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0174] The embodiments of the present application provide a communication system which can be applied to communication between a second communication device and a first communication device. The communication system provided by the embodiments of the present application can include one or more second communication devices and one or more first communication devices, and the number of the second communication devices and the first communication devices in the communication system is not limited by the embodiments of the present application. The embodiments of the present application take the first communication device as a terminal device and the second communication device as a network device as an example to illustrate the solutions provided by the embodiments of the present application, which are collectively described here and will not be repeated hereinafter.

[0175] As an example, Figure 3 An architecture schematic diagram of the communication system provided by the embodiments of the present application is shown in FIG. 1, which can include a network device and a terminal device, and the network device and the terminal device can be connected through a wireless manner. The network device and the terminal device can interact with each other in data or control signaling. Figure 3

[0176] Optionally, the communication system provided by the embodiments of the present application can also be applied to communication between network devices, communication between terminal devices, and communication of Internet of Vehicles, Internet of Things and Industrial Internet, and thus the type of devices at both ends of the communication in the communication system is not limited by the embodiments of the present application.

[0177] ​Optionally, the network device in the embodiments of the present application is a device for connecting a terminal device to a wireless network. The network device can be a node in a wireless access network, and can also be referred to as a base station, and can also be referred to as a radio access network (RAN) node (or device), wherein the base station can be a distributed antenna system, and the base station can be a radio frequency head end for communication with a terminal device. For example, the network device can include an evolved Node B (NodeB or eNB or eNodeB, evolved Node B) in an LTE system or an evolved LTE system (LTE-Advanced, LTE-A), such as a conventional macro base station eNB and a micro base station eNB in a heterogeneous network scenario; or can include a next generation Node B (gNB) in a 5G NR system, or can include a transmitting and receiving point (TRP), a transmitting point (TP), a home base station (for example, a home evolved Node B or a home Node B, HNB), a baseband unit (BBU), a baseband pool BBU pool, or a wireless fidelity (Wi-Fi) access point (AP), a mobile switching center, and a device-to-device (D2D) device, a vehicle-to-everything (V2X) device, a machine-to-machine (M2M) device, and a device that performs a base station function in communication, and the like; or can be a base station device in a 5G network or a network device in a future evolved public land mobile network (PLMN); or can be a wearable device or a vehicle-mounted device, and the like; or can include a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (CloudRAN) system; or can include a network device in an NTN, that is, can be deployed on a high-altitude platform or a satellite. In the NTN, the network device can be a layer 1 (L1) relay, or can be a base station, or can be a DU, or can be an integrated access and backhaul (IAB) node, and the embodiments of the present application are not limited. Of course, the network device can also be a node in a core network.

[0178] Optionally, the terminal device in the embodiments of the present application can be a device for implementing wireless communication functions, such as a terminal or a chip used in a terminal. The terminal can be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a terminal agent or a terminal device, various terminals in industrial scenarios (such as robots or mechanical arms equipped with wireless transmission modules), etc. in a 5G network or a future evolved PLMN. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication functions, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, or a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a drone, a satellite terminal, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Alternatively, the terminal can be a terminal in vehicle-to-everything (V2X) (such as a vehicle-to-everything device), a terminal in device-to-device (D2D) communication, or a terminal in machine-to-machine (M2M) communication, etc. The terminal can be mobile or fixed.

[0179] Optionally, the network device and the terminal device in the embodiments of the present application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0180] Exemplarily, when the technical solutions of the embodiments of the present application are applied to the NTN communication system, the communication system shown in the above Figure 3 may be as shown in Figure 4 .Figure 4 Another architecture of a communication system provided by the embodiments of the present application is shown in the figure. The communication system can include a satellite base station and a terminal device, and the satellite base station and the terminal device can be connected by wireless means. The satellite base station and the terminal device can interact with each other in data or control signaling.

[0181] The embodiments of the present application do not particularly limit the specific structure of the subject performing the method provided by the embodiments of the present application, as long as the subject can perform communication according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded. For example, the subject performing the communication method provided by the embodiments of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can invoke and execute the program.

[0182] In other words, the related functions of the terminal device or the network device in the embodiments of the present application can be implemented by one device, or by multiple devices together, or by one or more functional modules in one device, and the embodiments of the present application do not particularly limit this. It can be understood that the above functions can be network elements in a hardware device, software functions running on a special hardware, a combination of hardware and software, or virtualized functions instantiated on a platform (for example, a cloud platform).

[0183] For example, the related functions of the terminal device or the network device in the embodiments of the present application can be implemented by the communication device 500 in the embodiments of the present application. Figure 5 Figure 5 A structure of the communication device 500 provided by the embodiments of the present application is shown in the figure. The communication device 500 includes one or more processors 501, a communication line 502, and at least one communication interface (504). Figure 5 The communication interface 504 and the processor 501 are only exemplary and are described by way of example in the embodiments of the present application.

[0184] The processor 501 can be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs of the present application.

[0185] The communication line 502 can include a path for connecting different components. Exemplarily, the communication line 502 can be a bus, such as an address bus, a data bus, a control bus, etc.

[0186] ​The communication interface 504 can be a transceiver module, which can be used to communicate with other devices or communication networks. For example, the transceiver module can be a transceiver, a transceiver device, or the like. Alternatively, the communication interface 504 can also be a transceiver circuit located in the processor 501, which is used to realize the signal input and signal output of the processor.

[0187] The memory 503 can be a device with a storage function. For example, it can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited to this. The memory can exist independently and be connected to the processor through the communication line 502. The memory can also be integrated with the processor.

[0188] The memory 503 is configured to store computer-executable instructions for implementing the solutions of the present application, and the processor 501 is configured to control the execution of the computer-executable instructions. The processor 501 is configured to execute the computer-executable instructions stored in the memory 503, so as to implement the communication method provided in the embodiments of the present application.

[0189] Alternatively, in the embodiments of the present application, the processor 501 can execute the processing-related functions in the communication method provided in the embodiments of the present application, and the communication interface 504 is responsible for communicating with other devices or communication networks, which is not limited in the embodiments of the present application.

[0190] The computer-executable instructions in the embodiments of the present application can also be referred to as application program codes, which are not limited in the embodiments of the present application.

[0191] In a specific implementation, as an embodiment, the processor 501 can include one or more CPUs, for example, the CPUs 0 and 1 in the CPU. Figure 5

[0192] In a specific implementation, as an embodiment, the communication device 500 can include multiple processors, for example, the CPUs 0 and 1 in the CPU. Figure 5 ​The communication device 500 can include one or more processors 501 and 508. Each of the processors can be a single-CPU processor or a multi-CPU processor. The processor herein can refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0193] In a specific implementation, as an embodiment, the communication device 500 can further include an output device 505 and an input device 506. The output device 505 communicates with the processor 501 and can display information in various ways.

[0194] The communication system provided by the present application is introduced above, and the communication method provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

[0195] According to the range of the scheduling device, the communication method provided by the embodiments of the present application can be divided into three types, including: scheduling the polarization mode of the terminal device at the terminal level, scheduling the polarization mode of the terminal device at the beam level, and scheduling the polarization mode of the terminal device at the cell level. Next, they will be introduced in turn.

[0196] An embodiment provided by the present application is used to realize scheduling the polarization mode of the terminal device at the terminal level.

[0197] Please refer to Figure 6 , Figure 6 The flowchart of the communication method of the embodiments of the present application Figure 1 The communication method can be applied to the above-mentioned communication system and can be executed by the terminal device or the network device in the above-mentioned communication system. The communication method can schedule the polarization mode of the terminal device at the terminal level, that is, the network device can adjust the polarization mode of a certain terminal device, so that the polarization mode of the terminal device is more flexible and the granularity of the scheduling is finer, thereby improving the spectrum efficiency. The method can include S601-S603, which will be described in turn.

[0198] S601, the network device determines first indication information.

[0199] The first indication information is used to indicate the first polarization mode of the terminal device; or in other words, the first indication information can be used to indicate that the polarization mode of the terminal device is switched to the first polarization mode; or the first indication information can be used to indicate that the terminal device works in the first polarization mode; or the first indication information can be used to indicate that the polarization mode of the terminal device is the first polarization mode. It should be pointed out that the meanings expressed by the above-mentioned several ways of expressing the first indication information are consistent and can be mixed.

[0200] The first polarization mode can include any one of left circular polarization, right circular polarization, linear polarization, or cross polarization multiplexing. The linear polarization can include any one of horizontal polarization, vertical polarization, +45° polarization, or -45° polarization. The cross polarization multiplexing can include any one of horizontal-vertical cross polarization multiplexing, ±45° cross polarization multiplexing, or left-right circular polarization cross polarization multiplexing. Here, the above is collectively described, and the following will not be described again.

[0201] S602, the network device sends the first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the network device.

[0202] S603, the terminal device communicates with the network device based on the first polarization mode.

[0203] The terminal device communicating with the network device based on the first polarization mode can be understood as that the terminal device works in the first polarization mode, or that the terminal device switches the polarization mode to the first polarization mode.

[0204] Exemplarily, if the first polarization mode indicated by the first indication information is left circular polarization, the terminal device can work in the polarization mode of left circular polarization to realize communication with the network device. If the first polarization mode indicated by the first indication information is left-right circular polarization cross polarization multiplexing, the terminal device can work in the polarization mode of left-right circular polarization cross polarization multiplexing to realize communication with the network device.

[0205] In S601, the network device determines the implementation manner of the first indication information, which can include the following manner 1 to manner 6, which will be introduced as follows.

[0206] Manner 1: The network device determines the first indication information according to the polarization mode supported by the terminal device.

[0207] Optionally, the network device can determine one polarization mode from the polarization modes supported by the terminal device as the first polarization mode, thereby determining the first indication information.

[0208] Suppose that the polarization modes supported by the terminal device include left circular polarization, right circular polarization, and left-right circular polarization cross polarization multiplexing, and the network device determines the left-right circular polarization cross polarization multiplexing as the first polarization mode, the network device can generate the first indication information, which is used to indicate that the terminal device works in the left-right circular polarization cross polarization multiplexing.

[0209] In the manner 1, before the network device determines the first indication information, the manner 1 can further include: the network device acquires the polarization manner supported by the terminal device. The implementation process of the network device acquiring the polarization manner supported by the terminal device can include the following steps:

[0210] Step 1.1, the network device sends UE capability enquire information to the terminal device. Correspondingly, the terminal device receives the UE capability enquire information from the network device.

[0211] Step 1.2, the terminal device generates UE capability reporting according to the UE capability enquire information, and feeds back the UE capability reporting to the network device.

[0212] In the step 1.1 to the step 1.2, the UE capability enquire information is used to instruct the terminal device to feed back the polarization manner supported by the terminal device. The UE capability reporting includes the polarization manner supported by the terminal device. The UE capability reporting can also be referred to as UE capability information, which is not limited.

[0213] For example, assuming that the polarization manner supported by the terminal device includes: left circular polarization, right circular polarization, left-right circular polarization cross polarization multiplexing, the UE capability reporting generated by the terminal device can include: the terminal device supports left circular polarization, right circular polarization, left-right circular polarization cross polarization multiplexing.

[0214] Optionally, the UE capability enquire information and the UE capability reporting can be carried in RRC signaling.

[0215] Optionally, the UE capability reporting can be carried in uplink (UL) dedicated control channel (DCCH). In some possible embodiments, the UE capability reporting can be implemented by using radio frequency (RF) parameters or physical layer (PHY) parameters in UL-DCCH.

[0216] When the UE capability reporting is implemented by using the RF parameters in UL-DCCH, one field in the RF parameters can be used to indicate the polarization manner supported by the terminal device. Exemplarily, the information format of the RF parameters in UL-DCCH can be as follows:

[0217]

[0218] In the information format of the RF parameter, a polarization field in the RF parameter can be used to indicate a polarization mode supported by the terminal device.

[0219] In some possible embodiments, the polarization field in the RF parameter can have a length of 2 bits. For example, Table 1 shows a correspondence between the polarization field and a polarization mode supported by the terminal device. As shown in Table 1, when the polarization field is 00, it can indicate that the terminal device supports left-hand circular polarization; when the polarization field is 01, it can indicate that the terminal device supports right-hand circular polarization; and when the polarization field is 10, it can indicate that the terminal device supports left-hand circular polarization and right-hand circular polarization cross-polarization multiplexing.

[0220] Table 1

[0221] Value of polarization field Polarization mode supported by terminal device 00 Left-hand circular polarization 01 Right-hand circular polarization 10 Left-hand and right-hand circular polarization cross polarization multiplexing

[0222] In some other possible embodiments, an uplink polarization mode and a downlink polarization mode supported by the terminal device can be indicated respectively. The polarization field in the RF parameter can have a length of 4 bits. For example, Table 2 shows another correspondence between the polarization field and a polarization mode supported by the terminal device. As shown in Table 2, when the polarization field is 0000, it can indicate that the terminal device supports uplink left-hand circular polarization and downlink left-hand circular polarization. Correspondence between values of other polarization fields and polarization modes supported by the terminal device is shown in Table 2, which will not be described herein.

[0223] Table 2

[0224]

[0225]

[0226] When the UE capability report is implemented by using the PHY parameter in the UL-DCCH, a polarization field in the PHY parameter can be used to indicate a polarization mode supported by the terminal device. For example, an information format of the PHY parameter in the UL-DCCH can be as follows:

[0227]

[0228] In the information format of the PHY parameter, a polarization field in the PHY parameter can be used to indicate a polarization mode supported by the terminal device.

[0229] In some possible embodiments, the polarization field in the PHY parameter can have a length of 2 bits. For example, as shown in Table 1.

[0230] In some other possible embodiments, the polarization field in the PHY parameter can have a length of 4 bits. For example, as shown in Table 2.

[0231] It should be noted that the length of the polarization field in the above RF parameters and PHY parameters is only an example, and the embodiments of the present application do not limit the length of the polarization field in the RF parameters and PHY parameters. In application, the length of the polarization field in the RF parameters and PHY parameters can be set according to actual needs. In addition, in the above table 1 to table 2, the correspondence between the polarization field in the RF parameters or PHY parameters and the polarization mode supported by the terminal device is also an example, and the embodiments of the present application do not limit the correspondence between the polarization field in the RF parameters or PHY parameters and the polarization mode supported by the terminal device. In application, the correspondence between the polarization field in the RF parameters or PHY parameters and the polarization mode supported by the terminal device can be adjusted according to actual needs. For example, the correspondence in table 1 can be adjusted to table 3 as follows, and table 2 is similar and will not be repeated.

[0232] Table 3

[0233] Value of polarization field Polarization mode supported by terminal device 10 Left-hand circular polarization 00 Right-hand circular polarization 01 Left-hand and right-hand circular polarization cross polarization multiplexing

[0234] In addition, in the above table 1 to table 2, the polarization field in the RF parameters or PHY parameters can indicate the polarization mode supported by the terminal device, which is not limited to left circular polarization, right circular polarization, left-right circular polarization cross polarization multiplexing, and the polarization field in the RF parameters or PHY parameters can indicate one or more of the following polarization modes supported by the terminal device: left circular polarization, right circular polarization, horizontal polarization, vertical polarization, +45° polarization, -45° polarization, horizontal-vertical cross polarization multiplexing, ±45° cross polarization multiplexing, and left-right circular polarization cross polarization multiplexing. The specific indication principle can refer to the indication principle of the above table 1 to table 2, which will not be enumerated one by one here. As the types of polarization modes supported by the terminal device indicated by the polarization field in the RF parameters or PHY parameters increase, the length of the polarization field in the RF parameters or PHY parameters can increase to support the indication of all these types.

[0235] It should be noted that the above RF parameters and PHY parameters can also include uplink polarization fields and downlink polarization fields, respectively. The uplink polarization field is used to indicate the uplink polarization mode supported by the terminal device, and the downlink polarization field is used to indicate the downlink polarization mode supported by the terminal device. The indication principle can refer to the indication principle of the above table 1 to table 2, which will not be repeated here. In this way, the terminal device can report the supported uplink and downlink polarization modes to the network device through the UL-DCCH, improving the flexibility of reporting.

[0236] It can be understood that in the above step 1.1 to step 1.2, when the terminal device feeds back the UE capability report, the terminal device can configure the value of the polarization field in the RF parameter or the PHY parameter to the value corresponding to the polarization mode supported by the terminal device, so as to realize the feedback of the UE capability report to the network device. For example, taking the above table 1 as an example, assuming that the terminal device supports left-right circular polarization cross-polarization multiplexing, the terminal device can configure the polarization field in the RF parameter in the UL-DCCH to 10, and send the UL-DCCH to the network device, so as to realize the feedback of the information that the terminal device supports left-right circular polarization cross-polarization multiplexing to the network device.

[0237] Optionally, the network device can determine at least one available polarization mode according to the CSI of the channels of different polarization modes measured by the terminal device; then determine one available polarization mode from the at least one available polarization mode as the first polarization mode, and generate the first indication information.

[0238] Optionally, the network device can determine at least one available polarization mode according to the CSI of the channels of different polarization modes measured by the terminal device; then determine one available polarization mode from the at least one available polarization mode as the first polarization mode, and generate the first indication information.

[0239] For example, the network device can determine the at least one available polarization mode by judging the following conditions:

[0240] In a possible implementation, if the first condition is met, the polarization mode B can be determined as the available polarization mode. The first condition can include that the terminal device works in the polarization mode A, and the difference between the first measurement value in the CSI of the channel of the polarization mode B and the second measurement value in the CSI of the channel of the polarization mode A is greater than (or ≥) a first threshold value; or the first condition can include that the terminal device works in the polarization mode A, and the CSI of the channel of the polarization mode A is less than (or ≤) a threshold value 1, and the CSI of the channel of the polarization mode B is greater than (or ≥) a threshold value 2. In other words, when the channel quality of the polarization mode A is worse than that of the polarization mode B, the polarization mode B with better channel quality can be taken as the first polarization mode to instruct the terminal device to switch to the polarization mode with better channel quality, so as to improve the communication efficiency.

[0241] The first measurement value and the second measurement value can be reference signal received power (RSRP).

[0242] Exemplarily, if the polarization mode A is left-handed circular polarization, the polarization mode B is right-handed circular polarization, and the CSI of the channel of the right-handed circular polarization and the CSI of the channel of the left-handed circular polarization are greater than a first threshold, it is determined that the left-handed circular polarization is a usable polarization mode, and the left-handed circular polarization is determined as the first polarization mode, and first indication information is generated, which is used to indicate that the polarization mode of the terminal device is the left-handed circular polarization. The sizes of the first threshold, the threshold 1 and the threshold 2 can be determined by the network device or agreed by a protocol, which are not limited herein.

[0243] Another possibility is that, if the second condition is met, it is determined that the polarization mode A and the polarization mode B are cross-polarization multiplexing usable polarization modes, that is, it is determined that the terminal device has the capability of starting polarization multiplexing. The second condition includes that the terminal device works in the polarization mode A or the polarization mode B, and the CSI of the channel of the polarization mode A and the CSI of the channel of the polarization mode B are greater than (or greater than or equal to) a second threshold. At this time, the network device can determine whether the terminal device starts polarization multiplexing according to the service requirement of the terminal device, that is, whether the terminal device works in the polarization mode A and the polarization mode B cross-polarization multiplexing. The implementation of the network device determining whether the terminal device starts polarization multiplexing according to the service requirement of the terminal device can refer to the related description in mode 3 below, which is not repeated herein.

[0244] Exemplarily, if the polarization mode A is left-handed circular polarization, the polarization mode B is right-handed circular polarization, and the CSI of the channel of the right-handed circular polarization and the CSI of the channel of the left-handed circular polarization are greater than the second threshold, it is determined that the left-handed circular polarization and the right-handed circular polarization cross-polarization multiplexing is a usable polarization mode, that is, it is determined that the terminal device has the capability of starting polarization multiplexing. At this time, if the service requirement of the terminal device is large, for example, the throughput of the terminal device is greater than a throughput threshold, the network device can determine that the terminal device starts polarization multiplexing, that is, the network device determines that the left-handed circular polarization and the right-handed circular polarization cross-polarization multiplexing is the first polarization mode, and generates first indication information, which is used to indicate that the polarization mode of the terminal device is the left-handed circular polarization and the right-handed circular polarization cross-polarization multiplexing, to indicate that the terminal device works in the left-handed circular polarization and the right-handed circular polarization cross-polarization multiplexing. In this way, when the service requirement of the terminal device is large and the channel quality of the polarization multiplexing is good, the terminal device can be started to perform polarization multiplexing, and the throughput of the terminal device is improved. The size of the second threshold can be determined by the network device or agreed by a protocol, which is not limited herein.

[0245] In another possible implementation, if a third condition is met, polarization mode B can be determined as an available polarization mode, and polarization mode A and polarization mode B cross-polarization multiplexing can be determined as an unavailable polarization mode, i.e., the terminal device cross-polarization multiplexes in a poor channel quality. The third condition is that the terminal device works in polarization mode A and polarization mode B cross-polarization multiplexing, and the CSI of the channel of polarization mode A is less than (or ≤) a third threshold value, and the CSI of the channel of polarization mode B is greater than (or ≥) the third threshold value. In other words, if the terminal device currently uses two orthogonal polarization modes (denoted as A and B), and the channel quality of A is poor, the network device can instruct the terminal device to work in B, and the channel quality of B is better, thereby improving the communication efficiency of the terminal device.

[0246] Exemplarily, if polarization mode A is left-handed circular polarization, polarization mode B is right-handed circular polarization, and the CSI of the channel of the left-handed circular polarization is less than the third threshold value, and the CSI of the channel of the right-handed circular polarization is greater than the third threshold value, the network device can determine the right-handed circular polarization as an available polarization mode, and the left-handed circular polarization and the right-handed circular polarization cross-polarization multiplexing as an unavailable polarization mode, and determine the right-handed circular polarization as the first polarization mode, and generate the first indication information for instructing the polarization mode of the terminal device to be the right-handed circular polarization, to instruct the terminal device to work in the right-handed circular polarization, thereby improving the channel quality and the communication efficiency. The size of the third threshold value can be determined by the network device or agreed by a protocol, which is not limited herein.

[0247] The polarization mode A and the polarization mode B are both polarization modes supported by the terminal device, and the types of the polarization mode A and the polarization mode B can refer to the types of the first polarization mode described above, which are not repeated herein.

[0248] In the manner 2, before determining the first indication information, the network device can further acquire the CSI of the channels of different polarization modes measured by the terminal device. The network device can acquire the CSI of the channels of different polarization modes measured by the terminal device through the following steps:

[0249] Step 2.1, the network device sends CSI request (CSI enquire) information to the terminal device. Correspondingly, the terminal device receives the CSI request information from the network device.

[0250] Step 2.2, the terminal device measures the CSI of the channels of different polarization modes according to the CSI request information, to generate a CSI report.

[0251] Step 2.3, the terminal device sends the CSI report (CSI report) to the network device. Correspondingly, the network device receives the CSI report from the terminal device.

[0252] In step 2.1-2.3, the CSI request information is used to instruct the terminal device to feed back the CSI of the channels of different polarization manners. The CSI report includes the CSI of the channels of different polarization manners measured by the terminal device. The CSI request information can also be referred to as CSI report configure information, which is not limited herein.

[0253] For example, assuming that the CSI request information is used to instruct the terminal device to feed back the CSI of the channels of left-hand circular polarization and the CSI of the channels of right-hand circular polarization, the terminal device can measure the CSI of the channels of left-hand circular polarization and the CSI of the channels of right-hand circular polarization, and then generate a CSI report including the CSI of the channels of left-hand circular polarization and the CSI of the channels of right-hand circular polarization.

[0254] Optionally, in step 2.1-2.3, the CSI request information can also be used to instruct the terminal device to feed back the CSI of the channels of different polarization manners periodically, semi-persistently or aperiodically.

[0255] For example, if the CSI request information is also used to instruct the terminal device to feed back the CSI of the channels of different polarization manners periodically, the terminal device can measure the CSI of the channels of different polarization manners once every period, and feed back the CSI report obtained by the measurement to the network device. The length of the period can be configured by the network device to the terminal device, or be agreed by the protocol, which is not limited herein.

[0256] For another example, if the CSI request information is also used to instruct the terminal device to feed back the CSI of the channels of different polarization manners aperiodically, the terminal device can measure the CSI of the channels of different polarization manners once, and feed back the CSI report obtained by the measurement to the network device.

[0257] For further example, if the CSI request information is also used to instruct the terminal device to feed back the CSI of the channels of different polarization manners semi-persistently, the terminal device can measure the CSI of the channels of different polarization manners once every semi-period, and feed back the CSI report obtained by the measurement to the network device. The length of the semi-period can be configured by the network device to the terminal device, or be agreed by the protocol, which is not limited herein.

[0258] Optionally, the CSI request information can be carried in RRC signaling. In some possible embodiments, the network device can implement the above CSI request information by configuring a polarization measurement field in a CSI ReportConfig field, so as to require the terminal device to feed back CSI of channels in different polarization manners. The information format of the CSI ReportConfig field can be as follows:

[0259]

[0260] In the above, the polarization measurement field (Polarization Config) in the CSI ReportConfig field can be used to indicate the terminal device to feed back CSI of channels in different polarization manners.

[0261] In some possible embodiments, the length of the polarization measurement field in the CSI ReportConfig field can be 2 bits. By way of example, Table 4 shows the correspondence between the polarization measurement field in the CSI ReportConfig field and the information fed back by the terminal device. As can be known from Table 4, when the polarization measurement field is 00, the terminal device can be indicated to feed back CSI of channels in left-hand circular polarization; when the polarization measurement field is 01, the terminal device can be indicated to feed back CSI of channels in right-hand circular polarization; and when the polarization measurement field is 10, the terminal device can be indicated to feed back CSI of channels in left-hand circular polarization and CSI of channels in right-hand circular polarization.

[0262] Table 4

[0263]

[0264]

[0265] Optionally, the CSI report can be carried in a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), without limitation.

[0266] In the Xx protocol, the CSI report includes part 1 and part 2. In some possible embodiments, when the terminal device feeds back the CSI report, if the CSI request information indicates the terminal device to feed back CSI of channels in two polarization manners, the terminal device can:

[0267] The CSI of one polarization mode of channel is transmitted by part1 and part2 in the CSI report, and 2 part fields are configured in the CSI report, which are part3 and part4, so that the CSI of another polarization mode of channel is transmitted by part3 and part4.

[0268] Alternatively, the CSI of one polarization mode of channel is transmitted by part1 in the CSI report, and the CSI of another polarization mode of channel is transmitted by part2 in the CSI report. It should be noted that transmitting the CSI of one polarization mode of channel in part1 may cause part1 to be unable to carry other information. At this time, the information with lower priority in part1 can be discarded. For example, if the terminal device does not perform multiple input multiple output (MIMO) transmission, the MIMO information is information with lower priority, and the MIMO information can be discarded from part1 during transmission, so that the CSI of one polarization mode of channel can be transmitted by one part.

[0269] Further, when transmitting the CSI of two polarization modes of channel, the CSI of one polarization mode of channel can be the change amount of the CSI of another polarization mode of channel. For example, when the CSI of one polarization mode of channel is transmitted by part1 in the CSI report, and the CSI of another polarization mode of channel is transmitted by part2 in the CSI report, the CSI of the polarization mode of channel in part2 can be the change amount of the CSI of the polarization mode of channel in part1. In this way, the overhead of the CSI report can be reduced.

[0270] Optionally, the network device determines the first indication information according to the service demand of the terminal device.

[0271] The service demand of the terminal device can include: uplink service throughput of the terminal device, and / or downlink service throughput of the terminal device. In addition, the service demand here can refer to the current service demand of the terminal device, which will be uniformly described hereinafter.

[0272] Optionally, the network device can determine at least one available polarization mode according to the service demand of the terminal device; then determine one available polarization mode from the at least one available polarization mode as the first polarization mode, and generate the first indication information.

[0273] The implementation of the network device determining at least one available polarization mode according to the service demand of the terminal device can include the following possible ways:

[0274] Mode 3.1, if a fourth condition is met, it can be determined that the downlink cross-polarization multiplexing is the available polarization mode. The fourth condition can include: the current downlink polarization mode of the terminal device is the single polarization mode, and the downlink throughput of the terminal device is greater than (or ≥) a first throughput threshold. In this way, the network device can enable the downlink polarization multiplexing for the terminal device when the downlink service demand of the terminal device is large, thereby improving the throughput of the terminal device.

[0275] Exemplarily, if the polarization modes supported by the terminal device include the left circular polarization mode, the right circular polarization mode and the left-right circular polarization cross-polarization multiplexing, if the downlink polarization mode of the terminal device is the left circular polarization mode, and the downlink throughput of the terminal device is greater than the first throughput threshold, it can be determined that the downlink left-right circular polarization cross-polarization multiplexing is the available polarization mode, and the downlink left-right circular polarization cross-polarization multiplexing is determined as the first polarization mode, and the first indication information is generated, which is used to indicate that the downlink polarization mode of the terminal device is the left-right circular polarization cross-polarization multiplexing. The size of the first throughput threshold can be determined by the network device or by protocol, which is not limited here.

[0276] Mode 3.2, if a fifth condition is met, it can be determined that the uplink cross-polarization multiplexing is the available polarization mode. The fifth condition can include: the current uplink polarization mode of the terminal device is the single polarization mode, and the uplink throughput of the terminal device is greater than (or ≥) a second throughput threshold. In this way, the network device can enable the uplink polarization multiplexing for the terminal device when the uplink service demand of the terminal device is large, thereby improving the throughput of the terminal device.

[0277] Examples of mode 3.2 can refer to the examples of mode 3.1 described above, which will not be repeated here.

[0278] It can be understood that mode 3.1 and mode 3.2 can be executed together, so that the network device can enable the uplink and downlink polarization multiplexing for the terminal device when the uplink and downlink service demands of the terminal device are both large, thereby improving the throughput of the terminal device.

[0279] Mode 3.3, if a sixth condition is met, it can be determined that the downlink single polarization mode is the available polarization mode. The sixth condition can include: the current downlink polarization mode of the terminal device is the cross-polarization multiplexing, and the downlink throughput of the terminal device is less than (or ≤) a third throughput threshold. In this way, the network device can disable the downlink polarization multiplexing for the terminal device when the downlink service demand of the terminal device is small, thereby further reducing the power consumption of the terminal device.

[0280] Exemplarily, the polarization modes supported by the terminal device include a left circular polarization mode, a right circular polarization mode, and a left-right circular polarization cross-polarization multiplexing. If the downlink polarization mode of the terminal device is the left-right circular polarization cross-polarization multiplexing, and the downlink throughput of the terminal device is less than a third throughput threshold, it can be determined that the downlink left circular polarization mode is an available polarization mode, and the downlink left circular polarization mode is determined as the first polarization mode, and first indication information is generated, which is used to indicate that the downlink polarization mode of the terminal device is the left circular polarization mode. The size of the third throughput threshold can be determined by the network device or agreed by a protocol, which is not limited herein.

[0281] Mode 3.4, if the seventh condition is met, it can be determined that the uplink single polarization mode is an available polarization mode. The seventh condition can include that the current uplink polarization mode of the terminal device is cross-polarization multiplexing, and the uplink throughput of the terminal device is less than (or ≤) a second throughput threshold. In this way, the network device can turn off the uplink polarization multiplexing for the terminal device when the uplink service demand of the terminal device is small, avoiding wasting air interface resources and reducing terminal power consumption.

[0282] Examples of mode 3.4 can refer to the examples of mode 3.3 described above, which will not be repeated here.

[0283] It can be understood that mode 3.3 and mode 3.4 can be executed together, so that the network device can turn off the uplink and downlink polarization multiplexing for the terminal device when the uplink and downlink service demands of the terminal device are both small, further reducing the throughput of the terminal device.

[0284] In mode 3, before the network device determines the first indication information, the network device can also obtain the service demand of the terminal device. The implementation process of the network device obtaining the service demand of the terminal device can include obtaining the throughput of the uplink service of the terminal device, and / or the throughput of the downlink service of the terminal device.

[0285] Mode 4, the network device determines the first indication information according to the polarization mode expected by the terminal device.

[0286] The polarization mode expected by the terminal device can mean that the terminal device determines the polarization mode expected by the network device according to its own service demand.

[0287] Optionally, the network device can determine at least one available polarization mode according to the polarization mode expected by the terminal device, and then determine one available polarization mode from the at least one available polarization mode as the first polarization mode, and generate the first indication information.

[0288] Optionally, the network device determines the polarization mode expected by the terminal device as the available polarization mode. Illustratively, if the polarization mode expected by the terminal device is left-hand circular polarization, the network device can determine the left-hand circular polarization as the available polarization mode, and determine the left-hand circular polarization as the first polarization mode, and generate the first indication information for indicating that the polarization mode of the terminal device is left-hand circular polarization.

[0289] It can be understood that, in the case that the polarization mode of the terminal device is left-hand circular polarization and right-hand circular polarization cross polarization, if the terminal device judges that the service throughput of the terminal device decreases, the terminal device can determine that the polarization mode expected by the terminal device is left-hand circular polarization, so as to request the network device to use the left-hand circular polarization, thereby reducing the device power consumption. For another example, in the case that the polarization mode of the terminal device is left-hand circular polarization, if the terminal device judges that the service throughput of the terminal device increases, the terminal device can determine that the polarization mode expected by the terminal device is left-hand circular polarization and right-hand circular polarization cross polarization, so as to request the network device to use the left-hand circular polarization and right-hand circular polarization cross polarization, thereby improving the throughput. In this way, the terminal device can apply to the network device whether to use cross polarization multiplexing according to the service demand of the terminal device, thereby flexibly adjusting between low power consumption and high throughput, and improving the spectral efficiency of the polarization mode of the terminal device.

[0290] In the mode 4, before determining the first indication information, the network device can further acquire the polarization mode expected by the terminal device. Wherein, the network device acquires the polarization mode expected by the terminal device can refer to S1501-S1503 in the communication method shown in the following Figure 15 , which will not be described herein. Wherein, the polarization mode expected by the terminal device can be sent to the network device by bearing various information, for example, PUCCH or PUSCH, which is not limited.

[0291] In the mode 5, the network device determines the first indication information according to weather information.

[0292] Wherein, the weather information can refer to the meteorological condition on the signal propagation path between the network device and the terminal device, which can include rainfall (snow) amount, and / or cloud thickness. Or, the weather information can include rainfall (snow) amount, and / or cloud thickness, which will be uniformly described herein and will not be described herein.

[0293] Optionally, the network device can determine at least one available polarization mode according to the weather information; and then determine one available polarization mode as the first polarization mode from the at least one available polarization mode, and generate the first indication information.

[0294] In a possible implementation, if the eighth condition is met, the network device can determine that the single polarization mode is an available polarization mode. The eighth condition can include that the terminal device operates in cross-polarization multiplexing, and the amount of rainfall (snow) is greater than (or ≥) a rainfall (snow) threshold, and / or the thickness of the cloud layer is greater than (or ≥) a thickness threshold. The size of the thickness threshold can be determined by the network device or agreed by a protocol, which is not limited herein.

[0295] In other words, when the terminal device operates in cross-polarization multiplexing and the weather on the signal propagation path between the network device and the terminal device is bad, the network device can instruct the terminal device to operate in the single polarization mode (such as left-handed circular polarization) to reduce signal interference and improve communication quality.

[0296] In mode 5, before determining the first indication information, the network device can also obtain weather information. The implementation of the network device obtaining the weather information can be that the network device receives current weather information from a weather station, and determines weather information on the signal propagation path between the network device and the terminal device according to the current weather information and the locations of the network device and the terminal device. Alternatively, the network device receives current weather information from a weather station, and determines weather information on the signal propagation path in the coverage area of the network device according to the current weather information and the coverage area of the network device.

[0297] In mode 6, the network device determines the first indication information according to the cross-polarization interference between the orthogonal polarization channels.

[0298] The cross-polarization interference between the orthogonal polarization channels can include a cross-polarization interference value, which can also be referred to as a cross-polarization interference degree. Hereinafter, the cross-polarization interference value and the cross-polarization interference degree are collectively referred to as the cross-polarization interference. The way to measure the cross-polarization interference degree can also be obtained by mathematical operation of other quantities, for example, “cross-polarization discrimination”, “isolation degree”, etc. The way to measure the cross-polarization interference degree by using the specific values of these quantities as thresholds is equivalent to using the cross-polarization interference value, which is not described herein.

[0299] Mode 6 can include that the network device determines available polarization modes and unavailable polarization modes according to the cross-polarization interference between the orthogonal polarization channels, and then determines one of the available polarization modes as the first polarization mode by using one or more of modes 1 to 5, thereby determining the first indication information.

[0300] In a possible implementation, if the ninth condition is met, the network device can determine that the single polarization mode is the available polarization mode, and determine that the cross-polarization multiplexing is the unavailable polarization mode. The ninth condition can include that the cross-polarization interference between the orthogonal polarization channels of the terminal device is greater than (or ≥) a first cross-polarization interference threshold. The size of the first cross-polarization interference threshold can be determined by the network device or agreed by a protocol, which is not limited herein. In this way, when the cross-polarization interference between the network device and the terminal device is serious, the network device can limit the polarization mode of the terminal device to the single polarization mode, thereby reducing signal interference and improving communication quality.

[0301] In another possible implementation, if the tenth condition is met, the network device can determine that the cross-polarization multiplexing is the available polarization mode. The tenth condition can include that the cross-polarization interference between the orthogonal polarization channels is less than (or ≤) a second cross-polarization interference threshold. The size of the second cross-polarization interference threshold of the terminal device can be determined by the network device or agreed by a protocol, which is not limited herein. In this way, when the cross-polarization interference between the network device and the terminal device is not serious, the network device can adjust the polarization mode of the terminal device to the cross-polarization multiplexing, thereby improving throughput.

[0302] In the mode 6, before the network device determines the first indication information, the network device can also acquire the cross-polarization interference information between the orthogonal polarization channels.

[0303] It can be understood that the mode 6 can be combined with one or more of the above-mentioned modes 1 to 5 to implement, and the related combination modes refer to the examples including the mode 6 in the following examples 1 to 13.

[0304] In some possible embodiments, when the trigger condition is met, the network device can determine the first indication information according to the trigger condition. The trigger condition can include any one of the first condition to the ninth condition in the above-mentioned modes 2 to 6, and the trigger condition can trigger the network device to schedule the polarization mode of the terminal device. In other words, if any one of the above-mentioned first condition to the ninth condition is met, the network device can determine the first indication information according to the process corresponding to the met condition, thereby scheduling the polarization mode of the terminal device.

[0305] In this way, the network device can timely find the problem existing in the polarization mode of the terminal device, and timely adjust the polarization mode of a certain terminal device, so that the polarization mode scheduling of the terminal device is more flexible, and the granularity of the scheduling is finer, thereby improving the spectrum efficiency.

[0306] It can be understood that the above-mentioned modes 1 to 6 can be implemented alone or in combination, and the embodiments of the present application do not limit this. The following examples 1 to 13 illustrate the combination implementation of the modes 1 to 3 and the modes 5 and 6.

[0307] In example 1, when the manner 1, the manner 2, the manner 3, the manner 5, and the manner 6 are combined, the network device can determine one polarization manner from the polarization manners supported by the terminal device as the first polarization manner, and determine the first indication information, according to the CSI of the channels of different polarization manners measured by the terminal device, the service requirement of the terminal device, the weather information, and the crosstalk between the orthogonal polarization channels.

[0308] In the example, the network device can determine one polarization manner from the polarization manners supported by the terminal device as the first polarization manner, according to the CSI of the channels of different polarization manners measured by the terminal device, the service requirement of the terminal device, the weather information, and the crosstalk between the orthogonal polarization channels, which can include: the network device determines at least one available polarization manner (denoted as a first set) according to the CSI of the channels of different polarization manners measured by the terminal device, the network device determines at least one available polarization manner (denoted as a second set) according to the service requirement of the terminal device, the network device determines at least one available polarization manner (denoted as a third set) according to the weather information, and the network device determines at least one available polarization manner (denoted as a fourth set) according to the crosstalk between the orthogonal polarization channels; and one polarization manner from the polarization manners supported by the terminal device is determined as the first polarization manner from the polarization manners included in the first set to the fourth set.

[0309] In the example, the network device can determine at least one available polarization manner according to different information (including any one of the CSI of the channels of different polarization manners measured by the terminal device, the service requirement of the terminal device, the weather information, and the crosstalk between the orthogonal polarization channels), which can refer to the process of determining at least one available polarization manner by the network device in the above-mentioned manner 2 to the manner 6, and will not be described herein.

[0310] In other words, when the above-mentioned manners are combined, the network device can determine a plurality of polarization manner sets according to different information respectively, and one polarization manner from the polarization manners supported by the terminal device is determined as the first polarization manner from the polarization manners included in the plurality of polarization manner sets.

[0311] In example 2, when the manner 1 and the manner 2 are combined, the network device can determine one polarization manner from the polarization manners supported by the terminal device as the first polarization manner, and determine the first indication information, according to the CSI of the channels of different polarization manners measured by the terminal device. For example, the network device can select one polarization manner from the polarization manners supported by the terminal device as the first polarization manner, and determine the first indication information, in one or more polarization manners in which the CSI of the channels is greater than (or greater than or equal to) a CSI threshold.

[0312] It can be understood that the mode 1 to mode 3 and mode 5, mode 6 can be combined to implement, and the specific implementation process can be referred to the above examples, which will not be enumerated one by one here.

[0313] It can be understood that the mode 1 to mode 3 and mode 5, mode 6 can be combined to implement, and the specific implementation process can be referred to the above examples, which will not be enumerated one by one here.

[0314] It can be understood that the mode 1 to mode 3 and mode 5, mode 6 can be combined to implement, and the specific implementation process can be referred to the above examples, which will not be enumerated one by one here.

[0315] Optionally, the first polarization mode can include a first uplink polarization mode, and / or a first downlink polarization mode. The first uplink polarization mode can include any one of an uplink left-hand circular polarization, an uplink right-hand circular polarization, an uplink horizontal polarization, an uplink vertical polarization, an uplink +45° polarization, an uplink ﹣45° polarization, an uplink horizontal-vertical cross polarization multiplexing, an uplink ±45° cross polarization multiplexing, and an uplink left-hand-right-hand circular polarization cross polarization multiplexing. The first downlink polarization mode can include any one of a downlink left-hand circular polarization, a downlink right-hand circular polarization, a downlink horizontal polarization, a downlink vertical polarization, a downlink +45° polarization, a downlink ﹣45° polarization, a downlink horizontal-vertical cross polarization multiplexing, a downlink ±45° cross polarization multiplexing, and a downlink left-hand-right-hand circular polarization cross polarization multiplexing. Similarly, the second polarization mode to the fourth polarization mode in the following can also be divided into uplink polarization modes and downlink polarization modes, and the division principle can be referred to the above first polarization mode, which will not be described here.

[0316] It should be noted that in the embodiments of the present application, including the above-mentioned mode 1 to mode 6, and mode 7 to mode 30 below, for the polarization mode which is not indicated as uplink and / or downlink, the embodiments of the present application do not limit the polarization mode to be uplink and / or downlink. In other words, for the polarization mode which is not indicated as uplink and / or downlink, it can be any one of the uplink polarization mode, the downlink polarization mode or the uplink-downlink polarization mode. For example, for the left-hand circular polarization, it can be the uplink left-hand circular polarization, the downlink left-hand circular polarization or the uplink-downlink left-hand circular polarization. The first polarization mode, the second polarization mode, the third polarization mode, the fourth polarization mode, the polarization mode A, the polarization mode B, the polarization mode C and the polarization mode D in the embodiments of the present application are the same, and will not be repeated here.

[0317] Optionally, the first indication information can also be used to indicate the duration of the first polarization mode.

[0318] The duration of the first polarization mode can be understood as the length of time that the terminal device continues to work in the first polarization mode. The duration of the first polarization mode can also be referred to as a timer of the first polarization mode. When the timer expires, the terminal device can return to the default polarization mode of the cell broadcast by the network device.

[0319] In this way, the network device can indicate the duration of the terminal device working in the first polarization mode. After the duration indicated by the first indication information expires, the terminal device can return to the previous polarization mode. The network device can not need to indicate the terminal device to return to the previous polarization mode through an indication signaling again, which can save signaling overhead and avoid the network device waiting for the feedback of the terminal device to the indication signaling for a long time. Furthermore, the flexibility of scheduling the polarization mode of the terminal device can be further improved.

[0320] The implementation of the first indication information indicating the duration of the first polarization mode can include the following mode 7 and mode 8.

[0321] In mode 7, the first indication information can include duration information, which is used to indicate the duration of the first polarization mode. For example, assuming that the first indication information is used to indicate that the polarization mode of the terminal device is left-hand circular polarization, and the duration information included in the first indication information is 5 seconds (s), then the first indication information is also used to indicate that the terminal device works in the left-hand circular polarization for 5s. After 5s expires, the terminal device can return to the default polarization mode of the cell broadcast by the network device.

[0322] In the first indication information, a timer index (which can also be referred to as an index) can be included, and the timer index is used to indicate the duration of the first polarization mode. Assuming that according to the timer configuration information, it is determined that the timer index 1 is used to indicate that the duration of the first polarization mode is 5s, and assuming that the first indication information is used to indicate that the polarization mode of the terminal device is left circular polarization, and the timer index included in the first indication information is 1, then the first indication information is also used to indicate that the terminal device works in the polarization mode of left circular polarization for 5s, and after 5s expires, the terminal device can return to the default polarization mode of the cell broadcast by the network device.

[0323] The timer configuration information can include a correspondence between at least one timer index and at least one timer, and the timer refers to the duration of the first polarization mode. For example, as shown in Table 5, Table 5 shows a one-to-one correspondence between 3 timer indexes and 3 timers, as shown in Table 5, the timer indexes 1, 2, and 3 correspond to the timers 5s, 10s, and 15s, respectively.

[0324] Table 5

[0325] Timer index Timer 1 5s 2 10s 3 15s

[0326] It should be understood that the number of bits required to transmit the timer index is usually less than the number of bits required to transmit the duration information described above, and by introducing the timer index, the overhead of the first indication information can be reduced.

[0327] Alternatively, the network device can broadcast the default polarization mode of the cell. Correspondingly, the terminal device can accept the default polarization mode from the cell broadcast by the network device. For example, the network device can send the default polarization mode of the cell to all terminal devices in the cell through SIB. In this way, the terminal device can work in the default polarization mode to communicate with the network device.

[0328] The network device can periodically broadcast the default polarization mode of the cell when broadcasting the default polarization mode of the cell. The length of the period can be determined by the network device or agreed by the protocol, which is not limited here.

[0329] Further, the network device can determine the default polarization mode according to the polarization modes supported by all terminal devices in the cell, and broadcast the default polarization mode.

[0330] Exemplarily, the network device can determine one of the polarization manners supported by all the terminal devices in the cell as a default polarization manner according to the polarization manners supported by all the terminal devices in the cell, and broadcast the default polarization manner. Alternatively, the network device can determine one of the polarization manners supported by all the terminal devices in the cell as a default polarization manner according to the polarization manners supported by all the terminal devices in the cell, where the terminal devices in the cell are greater than (or ≥) a first proportion (such as 80%), and broadcast the default polarization manner. The first proportion can be determined by the network device or agreed by a protocol, which is not limited herein.

[0331] Further, the network device can periodically determine a default polarization manner according to the polarization manners supported by all the terminal devices in the cell, and broadcast the default polarization manner. The length of the period can be determined by the network device or agreed by a protocol, which is not limited herein.

[0332] Optionally, the network device can broadcast timer configuration information. The timer configuration information can include a correspondence between at least one timer index and at least one timer, and the timer is used to indicate the duration of the first polarization manner. For example, the network device can send the timer configuration information to all the terminal devices in the cell through SIB.

[0333] The implementation of the timer configuration information can include the following two kinds:

[0334] Firstly, the timer configuration information includes a one-to-one correspondence between at least one timer index and at least one timer. As shown in Table 5, the timer index includes 1, 2, 3, which respectively corresponds to the duration of the first polarization manner for 5s, 10s, and 15s.

[0335] Secondly, the timer configuration information includes a correspondence between at least one timer index and at least one timer, where one or more indexes correspond to one timer.

[0336] Optionally, the network device can determine the default polarization manner of the cell according to the CSI of the channels of different polarization manners measured by all the terminal devices in the cell. For example, the network device can determine one of the polarization manners supported by all the terminal devices in the cell as a default polarization manner, where the polarization manner satisfies condition 1. Condition 1 includes that the CSI of the channel of the polarization manner is greater than (or ≥) a CSI threshold.

[0337] Optionally, the network device can determine the timer configuration information according to historical data.

[0338] Further, the network device can periodically determine the default polarization mode of the cell according to the CSI of the channels of different polarization modes measured by all terminal devices in the cell. The length of the period can be determined by the network device or agreed by a protocol, which is not limited herein.

[0339] Further, the network device can periodically determine the timer configuration information according to historical data. The length of the period can be determined by the network device or agreed by a protocol, which is not limited herein.

[0340] Optionally, the network device can send the default polarization indication information to the terminal device, where the default polarization indication information is used to indicate the default polarization mode of the terminal device. The default polarization mode of the terminal device refers to the polarization mode of the terminal device when the network device does not indicate the polarization mode of the terminal device.

[0341] In the embodiments of the present application, when the duration of the first polarization mode indicated by the first indication information expires, the terminal device can switch the polarization mode to the last first polarization mode without duration indication performed by the last terminal device, that is, switch to the last first polarization mode without timer configuration, that is, the terminal device can restore to the last first polarization mode without timer configuration.

[0342] Alternatively, when the duration of the first polarization mode indicated by the first indication information expires, the terminal device can switch the polarization mode to the default polarization mode of the terminal device indicated by the network device, that is, the terminal device can restore to the default polarization mode of the terminal device.

[0343] Optionally, when the tenth condition is met, the network device can determine the cross-polarization multiplexing as the first polarization mode; the network device can further obtain the first service demand time of the terminal device, and determine the first indication information according to the first service demand time. The first indication information is used to indicate that the polarization mode of the terminal device is the first polarization mode (that is, cross-polarization multiplexing), and the first indication information is further used to indicate the duration of the first polarization mode, which can be greater than (or ≥) the first service demand time.

[0344] The tenth condition can include that the current polarization mode of the terminal device is the single polarization mode, and the throughput of the terminal device is greater than (or ≥) the first throughput threshold. The first service demand time refers to the time during which the throughput of the terminal device is greater than (or ≥) the first throughput threshold. For example, assuming that the time during which the throughput of the terminal device is greater than the first throughput threshold in the future is 10s, the first service demand time is 10s, which indicates that the service throughput of the terminal device is large in the future 10s.

[0345] Exemplarily, the polarization mode supported by the terminal device includes a left-hand circular polarization mode, a right-hand circular polarization mode, and a left-hand and right-hand circular polarization cross-polarization multiplexing. If the polarization mode of the terminal device is the left-hand circular polarization mode, and the throughput of the terminal device is greater than the first throughput threshold (that is, the tenth condition is met), the network device can determine that the left-hand and right-hand circular polarization cross-polarization multiplexing is the first polarization mode. The network device can further acquire a first service requirement time of the terminal device. Assuming that the first service requirement time is 10 s, the network device can determine first indication information according to the first service requirement time, the first indication information being used to indicate that the polarization mode of the terminal device is the left-hand and right-hand circular polarization cross-polarization multiplexing, and the first indication information being further used to indicate that the duration of the terminal device working in the left-hand and right-hand circular polarization cross-polarization multiplexing is 10 s.

[0346] In this way, after the duration indicated by the first indication information expires, the terminal device can return to the single polarization mode from the cross-polarization multiplexing, so as to realize self-closing of the cross-polarization multiplexing when the first service requirement time of the terminal device ends, thereby saving power consumption. Moreover, the network device can no longer need to indicate the terminal device to return to the previous polarization mode through one indication signaling, so that signaling overhead can be saved, and the network device can avoid long-time waiting for feedback of the terminal device to the indication signaling.

[0347] Optionally, when the eleventh condition is met, the network device can determine that the single polarization mode is the first polarization mode. The network device can further acquire a second service requirement time of the terminal device, and determine the first indication information according to the second service requirement time. The first indication information is used to indicate that the polarization mode of the terminal device is the first polarization mode (that is, the single polarization mode), and the first indication information is further used to indicate a duration of the first polarization mode, the duration of the first polarization mode being greater than (or ≥) the second service requirement time.

[0348] The eleventh condition can include that the current polarization mode of the terminal device is the cross-polarization multiplexing, and the throughput of the terminal device is less than (or ≤) a third throughput threshold. The second service requirement time refers to a time during which the throughput of the terminal device is less than (or ≤) the third throughput threshold. For example, assuming that the time during which the throughput of the terminal device is less than the first throughput threshold in a future period of time is 10 s, the second service requirement time is 10 s, which indicates that the service throughput of the terminal device is small in the future 10 s.

[0349] Exemplarily, the polarization mode supported by the terminal device includes a left-hand circular polarization mode, a right-hand circular polarization mode, and a left-hand and right-hand circular polarization cross-polarization multiplexing. If the polarization mode of the terminal device is the left-hand and right-hand circular polarization cross-polarization multiplexing, and the throughput of the terminal device is less than the third throughput threshold (that is, the eleventh condition is met), the network device can determine that the left-hand circular polarization mode is the first polarization mode. The network device can further acquire a second service requirement time of the terminal device. Assuming that the second service requirement time is 10 s, the network device can determine first indication information according to the second service requirement time, the first indication information being used to indicate that the polarization mode of the terminal device is the left-hand circular polarization mode, and the first indication information being further used to indicate that the duration during which the terminal device works in the left-hand circular polarization mode is 10 s.

[0350] In this way, after the duration indicated by the first indication information expires, the terminal device can return to the cross-polarization multiplexing from the single polarization mode, so as to automatically wake up the cross-polarization multiplexing at the end of the second service requirement time of the terminal device, and improve the throughput. Moreover, the network device does not need to indicate the terminal device to return to the previous polarization mode through an indication signaling, so that the signaling overhead can be saved, and the network device can avoid waiting for feedback of the terminal device to the indication signaling for a long time.

[0351] In the embodiments of the present application, the first indication information can be carried in terminal-level information.

[0352] The terminal-level information can be understood as information sent by the network device for a specific terminal device. The first indication information is carried in the terminal-level information, indicating that the device scheduled by the first indication information is a specific terminal device.

[0353] Optionally, the terminal-level information can be any one of RRC signaling, MAC CE, CSI-RS, and DCI. In other words, the first indication information can be carried in any one of RRC signaling, MAC CE, CSI-RS, and DCI. The possible implementation manners are introduced as follows.

[0354] When the first indication information is carried in RRC signaling, the first indication information can be carried in UE specific RRC signaling. For example, one or more bits in the UE specific RRC signaling can be used to carry the first indication information.

[0355] When the first indication information is carried in MAC CE, the first indication information can be implemented by using an index of the MAC CE. For example, one or more bits corresponding to the index of the MAC CE can be used to carry the first indication information.

[0356] Exemplarily, Table 6 is the logical channel ID (LCID) values of a downlink shared channel (DL-SCH), and Table 7 is the LCID values of an uplink shared channel (UL-SCH). Referring to Table 6 and Table 7, when the first indication information is used to indicate the first downlink polarization mode of the terminal device, one or more bits in the reserved field 01011-11011 in Table 6 can be used to carry the first indication information; when the first indication information is used to indicate the first uplink polarization mode of the terminal device, one or more bits in the reserved field 01011-11001 in Table 7 can be used to carry the first indication information; when the first indication information is used to indicate the first downlink polarization mode and the first uplink polarization mode of the terminal device, one or more bits in the reserved field 01011-11011 in Table 6 and one or more bits in the reserved field 01011-11001 in Table 7 can be used to carry the first indication information.

[0357] Table 6

[0358] Index (index) LCID value 00000 Common control channel (CCCH) 00001～01010 Indentity of the logical channel 01011～11011 Reserved 11100 UE contention resolution identity 11101 Timing advance command 11110 Discontinuous reception (DRX) command 11111 Padding

[0359] Table 7

[0360]

[0361] When the first indication information is carried in the DCI, the first indication information can be implemented by using the control signaling carried by a certain DCI format. For example, the first indication information can be carried by using a DCI format X. Wherein, one or more bits in the DCI Format 1 can be used to carry the first indication information. Wherein, the value of “X” in the DCI format X can be 0_0, 0_1, 1_0, 1_1, 2_0, etc., and X can also be more values as the communication technology develops, and the value of X is not limited in the embodiments of the present application.

[0362] When the first indication information is carried in the CSI-RS, the first indication information can be carried by using the time-frequency distribution characteristics in the CSI-RS. For example, the first indication information can be one or more of the carrier frequencies and resource units of the CSI-RS, and the one or more of the carrier frequencies and resource units of the CSI-RS can be used to indicate the first polarization mode. Wherein, the network device can configure the correspondence between the one or more of the carrier frequencies and resource units of the CSI-RS and the plurality of polarization modes for the terminal device in advance. When the network device determines that the first indication information is used to indicate the first polarization mode of the terminal device, the network device can use the one or more of the carrier frequencies and resource units of the CSI-RS to indicate the first polarization mode of the terminal device. In other words, the one or more of the carrier frequencies and resource units of the CSI-RS can implicitly indicate the first polarization mode. In the embodiments of the present application, the time-frequency can be understood as the time domain resource and the frequency domain resource.

[0363] Taking the use of the resource units of the CSI-RS to indicate the first polarization mode of the terminal device as an example, assuming that the network device configures the correspondence between the resource units of the CSI-RS and the plurality of polarization modes for the terminal device in advance as shown in Table 8, and the network device determines that the first indication information is used to indicate the polarization mode of the terminal device as left-handed circular polarization by using any of the above methods, the network device can use the frequency f0+300 of the CSI-RS to indicate the first indication information.

[0364] Table 8

[0365] Index of CSI-RS Indicated polarization mode Frequency f0+100 Left-hand and right-hand circular polarization cross polarization multiplexing Frequency f0+200 Right-hand circular polarization Frequency f0+300 Left-hand circular polarization

[0366] For another example, assuming that the network device configures the correspondence between the resource units of the CSI-RS and the plurality of polarization modes for the terminal device in advance as shown in Table 9, and the network device determines that the first indication information is used to indicate the polarization mode of the terminal device as left-handed circular polarization by using any of the above methods, the network device can use the frequency f0+300-400 of the CSI-RS to implement the first indication information.

[0367] Table 9

[0368] Index of CSI-RS Indicated polarization mode Frequency f0+100~200 Left-hand and right-hand circular polarization cross polarization multiplexing Frequency f0+200~300 Right-hand circular polarization Frequency f0+300~400 Left-hand circular polarization

[0369] It can be known from the above examples corresponding to Table 8 and Table 9 that when the resource units are used to indicate the first polarization mode, one frequency can be used to indicate the first polarization mode, or one frequency range can be used to indicate the first polarization mode, and no limitation is made in this regard.

[0370] In combination with the above implementation manner of carrying the first indication information, one or more bits in the terminal-level information can be used to carry the first indication information, wherein the value of the one or more bits in the terminal-level information can be used to indicate the first polarization mode of the terminal device. The following describes several possible implementation manners of how to use the one or more bits in the terminal-level information to carry the first indication information.

[0371] Manner 9: Two bits in the terminal-level information are used to carry the first indication information. The two bits can be used to indicate the first polarization mode of the terminal device in the indication manner shown in Table 10 below. The unchanged polarization mode of the terminal device can mean that the polarization mode of the terminal device is the default polarization mode of the cell, or the polarization mode of the terminal device remains unchanged, which is not limited.

[0372] Table 10

[0373]

[0374] In Table 10, the value of the bit carrying the first indication information can indicate the first downlink polarization mode of the terminal device. For example, when the value of the bit carrying the first indication information is 01, it indicates that the downlink polarization mode of the terminal device is left-hand circular polarization. At this time, the uplink polarization mode of the terminal device is not indicated and can be considered to be the same as the indication of the downlink polarization mode, that is, in Table 10, the value of the bit carrying the first indication information can implicitly indicate the first uplink polarization mode of the terminal device. For example, when the value of the bit carrying the first indication information is 01, it indicates that the downlink polarization mode of the terminal device is left-hand circular polarization, and implicitly indicates that the uplink polarization mode of the terminal device is left-hand circular polarization.

[0375] Alternatively, two bits can be used to indicate the downlink polarization mode of the terminal device, and another two bits can be used to indicate the uplink polarization mode of the terminal device. The two bits indicating the downlink polarization mode of the terminal device can refer to Table 10 described above, and the other two bits can be used to indicate the first polarization mode of the terminal device in the indication manner shown in Table 11 below.

[0376] Table 11

[0377]

[0378] It can be understood that the manner 9 can be applied to the process in which the network device determines the first indication information by using the above-described manner 2.

[0379] Manner 10: One bit in the terminal-level information is used to carry the first indication information. The one bit can be used to indicate the first polarization mode of the terminal device in the indication manner shown in Table 12 below.

[0380] Table 12

[0381]

[0382] The first single polarization mode is the single polarization mode that the network device schedules to the terminal device, such as left-hand circular polarization. This will be explained uniformly here and will not be elaborated further below. The cross-polarization multiplexing corresponding to the first single polarization mode refers to one of the two orthogonal single polarization modes in this cross-polarization multiplexing being the first single polarization mode. This will also be explained uniformly here and will not be elaborated further below. For example, when the first single polarization mode is left-hand circular polarization, then the cross-polarization multiplexing corresponding to the first single polarization mode is left-hand circular polarization cross-polarization multiplexing.

[0383] Method 11: Use two bits in the terminal-level information to carry the first indication information. These two bits can indicate the first polarization mode of the terminal device according to the indication method shown in Table 13 below.

[0384] Table 13

[0385]

[0386] Method 12: Utilize two bits in the terminal-level information to carry the first indication information. These two bits can indicate the first polarization mode of the terminal device according to the indication method shown in Table 14 below.

[0387] Table 14

[0388]

[0389] It is understood that methods 10 to 12 can be applied to the process by which network devices determine the first indication information using the above method 3, such as methods 3.1 to 3.4.

[0390] It should be noted that the above implementation method of using one or more bits in the terminal-level information to carry the first indication information is only an example and is not limited here. In actual applications, it can be adjusted according to the requirements. The adjusted implementation methods will not be listed one by one here.

[0391] In one possible implementation, the first indication information can be used to indicate that the polarization mode of the first resource is a first polarization mode. The first resource can include any one of time-frequency domain resources, time domain resources, and frequency domain resources.

[0392] For example, taking the first resource as including time-frequency domain resources, the polarization mode of the first resource can be indicated by UE-specific RRC, MAC CE, and DCI.

[0393] For example, DCI can be used to indicate the time-frequency domain resources of the terminal device, and UE-specific RRC can be used to indicate the polarization mode of the time-frequency domain resources as the first polarization mode.

[0394] For example, DCI can be used to indicate the time-frequency domain resources of the terminal device, and MAC CE can be used to indicate the polarization mode of the time-frequency domain resources as the first polarization mode.

[0395] Of course, physical resources with different polarization directions but the same time-frequency can also be treated as different physical resources and indicated using any one of UE-specific RRC, MAC CE, or DCI.

[0396] In other words, based on the first indication information, for a given time-frequency domain resource, the network device can divide that resource into time-frequency domain resources with different polarization modes. For example, for a single RE, the network device can divide the RE into a left-hand circularly polarized RE and a right-hand circularly polarized RE, and schedule the left-hand circularly polarized RE and the right-hand circularly polarized RE to the same UE or different UEs. In this way, the network device can flexibly schedule resources to different REs in the time domain, frequency domain, and polarization mode domain, improving scheduling flexibility and spectrum efficiency, and meeting different service requirements.

[0397] When the first resource includes time-domain resources or frequency-domain resources, the indication method of the first indication information is the same, and will not be repeated here.

[0398] Taking the diagram as an example, Figure 7 This is a schematic diagram of resource mapping for a certain beam-in-beam combined polarization method provided in an embodiment of this application, such as... Figure 7 As shown, Figure 7 Each cell in the coordinate system represents a RE. Network devices can assign the LHCP and RHCP of the same RE to the same UE through radio resource management (RRM), or they can assign the LHCP and RHCP of the same RE to different UEs. For example, Figure 7 In the table, RE1 (labeled 1) and RE2 (labeled 2) have the same time-domain and frequency-domain positions, but RE1 is polarized by left-hand circular polarization and RE2 is polarized by right-hand circular polarization. RE1 is scheduled to UE2 and RE2 is scheduled to UE5. Figure 7 The scheduling of other REs is similar to that of RE1 and RE2, and will not be repeated here.

[0399] It should be noted that the above explanation uses the smallest unit of resource scheduling, RE, as an example. In actual systems, the granularity of resource scheduling may be larger than RE, such as RE blocks or RE groups, which will not be elaborated here.

[0400] Figure 8 This is a schematic diagram illustrating the formation of virtual sub-beams in space, on a UE-by-UE basis, within a certain beam using RRM, as provided in the embodiments of this application. Figure 8 As shown, through the first indication information and RRM, different virtual sub-beams with different physical resources can be scheduled for different UEs within a single beam. These virtual sub-beams can have the same or different time-frequency domain resources. The formed virtual sub-beams change as the UE's resource scheduling process progresses. Thus, this embodiment of the application, by adding a polarization domain (or simply polarization domain) in the time and frequency domains, flexibly schedules resources to different REs in the time, frequency, and polarization domains, improving scheduling flexibility and spectrum efficiency to meet different service requirements.

[0401] It should be noted that network devices (such as satellites) can enable two orthogonal polarization directions for a single beam, but they do not need to instruct UEs within that beam range to use cross-polarization multiplexing.

[0402] In addition, such as Figure 9 As shown, different SSBs (or bandwidth parts, BWPs) within a cell correspond to slightly different frequency domain resources. Figure 9 In the cell shown, at least one beam uses cross-polarization multiplexing. For beams using horizontal-vertical cross-polarization multiplexing, Figure 9For example, in SSB#3, if UE1 works in horizontal-vertical cross-polarization multiplexing, the horizontal polarization resource and the vertical polarization resource of one resource block (RB) used by UE1 in the beam represented by SSB#3 are both occupied by UE1. For other UEs, if UE2 works in horizontal polarization, the horizontal polarization of one RB used by UE2 in the beam represented by SSB#3 is occupied by UE2, and the vertical polarization of the RB can be allocated to another UE (such as UE3). The indication manner of the polarization of the above UEs 1-3 and the time-frequency domain resource can refer to the above description that the polarization of the first resource is the first polarization by using the UE specific RRC, MAC CE, and DCI to jointly indicate the first polarization. In this way, the network device can realize irregular UE-level virtual sub-beam in the same beam by using the first indication information and RRM, so that the UE can use one RB in cross-polarization multiplexing to improve the throughput, and some UEs can flexibly use the single polarization in cross-polarization multiplexing to share the RB, thereby avoiding interference between UEs and improving resource utilization.

[0403] Further, the first resource can include a first uplink resource and / or a first downlink resource. For the first resource including the first uplink resource, the first indication information can be used to indicate that the polarization of the first uplink resource of the terminal device is the first uplink polarization; for the first resource including the first downlink resource, the first indication information can be used to indicate that the polarization of the first downlink resource of the terminal device is the first downlink polarization; and for the first resource including the first uplink resource and the first downlink resource, the first indication information can be used to indicate that the polarization of the first uplink resource of the terminal device is the first uplink polarization and the polarization of the first downlink resource of the terminal device is the first downlink polarization.

[0404] In the communication method shown in FIG. 6, Figure 6 In the communication method shown in FIG. 6, the first indication information can be used to schedule the polarization of the terminal device, and the first indication information is carried in terminal-level information such as RRC signaling, DCI, and MAC CE. In this way, the network device can schedule the polarization of the terminal device at the terminal level, that is, the network device can adjust the polarization of a certain terminal device, so that the polarization of the terminal device is more flexible and the granularity of the scheduling is finer, thereby improving the spectrum efficiency.

[0405] The present application provides another embodiment to schedule the polarization of the terminal device at the beam level.

[0406] Please refer to Figure 10 , Figure 10 Flowchart of the communication method of the embodiment of the present applicationFigure 2 The communication method can be applied to the communication system, and can be executed by the terminal device or the network device in the communication system. The communication method can schedule the polarization mode of the terminal device at the beam level, that is, the network device can adjust the polarization mode of the terminal device in a certain beam, so that the polarization mode of the terminal device is more flexible and the granularity of the scheduling is finer, thereby improving the spectrum efficiency. The method can include S1001-S1003, which are described below in turn.

[0407] S1001, the network device determines fourth indication information.

[0408] The fourth indication information is used to indicate the second polarization mode of the first beam; or in other words, the fourth indication information can be used to indicate that the polarization mode of the first beam is switched to the second polarization mode; or the fourth indication information can be used to indicate that the first beam works in the second polarization mode; or the fourth indication information can be used to indicate that the polarization mode of the first beam is the second polarization mode; or the fourth indication information can be used to indicate that the polarization mode of the terminal device in the first beam is the second polarization mode. It should be pointed out that the meanings expressed by the above several ways of expressing the fourth indication information are consistent and can be mixed. The first beam here can be any one of the beam set of the network device, including the uplink beam and / or the downlink beam.

[0409] The second polarization mode can include any one of left-handed circular polarization, right-handed circular polarization, linear polarization or cross-polarization multiplexing. The linear polarization can include any one of horizontal polarization, vertical polarization, +45° polarization and -45° polarization; the cross-polarization multiplexing can include any one of horizontal-vertical cross-polarization multiplexing, ±45° cross-polarization multiplexing and left-handed-right-handed circular polarization cross-polarization multiplexing.

[0410] S1002, the network device sends the fourth indication information to the terminal device in the first beam. Correspondingly, the terminal device in the first beam receives the fourth indication information from the network device.

[0411] S1003, the terminal device in the first beam communicates with the network device based on the second polarization mode.

[0412] The terminal device in the first beam communicates with the network device based on the second polarization mode can be understood as that the terminal device in the first beam works in the second polarization mode, or that the terminal device in the first beam switches the polarization mode to the second polarization mode.

[0413] Exemplarily, if the second polarization mode of the first beam indicated by the fourth indication information is left-hand circular polarization, the terminal devices in the first beam can work in the polarization mode of left-hand circular polarization to implement communication with the network device. If the second polarization mode of the first beam indicated by the fourth indication information is left-hand circular polarization and right-hand circular polarization cross-polarization multiplexing, the terminal devices in the first beam can work in the polarization mode of left-hand circular polarization and right-hand circular polarization cross-polarization multiplexing to implement communication with the network device.

[0414] In S1001, the network device determines the implementation of the fourth indication information, which can include the following modes 13-18, which are introduced as follows.

[0415] Mode 13: The network device determines the fourth indication information according to the polarization modes supported by all terminal devices in the first beam.

[0416] Alternatively, the network device can determine a polarization mode as the second polarization mode from the polarization modes supported by all terminal devices in the first beam, thereby determining the fourth indication information.

[0417] Specifically, the network device can determine at least one polarization mode supported by all terminal devices in the first beam, and determine a polarization mode as the second polarization mode from the at least one polarization mode.

[0418] In mode 13, before determining the fourth indication information, the network device can also obtain the polarization modes supported by all terminal devices in the first beam. The network device can obtain the polarization modes supported by each terminal device in the first beam in sequence to obtain the polarization modes supported by all terminal devices in the first beam. The network device can obtain the polarization mode supported by a terminal device in the first beam by referring to steps 1.1-1.2 described above, which are not repeated here.

[0419] Mode 14: The network device determines the fourth indication information according to the CSI of channels of different polarization modes measured by all terminal devices in the first beam.

[0420] Alternatively, the network device can determine at least one available polarization mode according to the CSI of channels of different polarization modes measured by all terminal devices in the first beam, and then determine an available polarization mode as the second polarization mode from the at least one available polarization mode, and generate the fourth indication information.

[0421] In a possible implementation, if the twentieth condition is met, the network device can determine that the polarization mode C is an available polarization mode. The twentieth condition includes that the channel quality corresponding to the polarization mode C with the best channel quality in the set of different polarization modes measured by all terminal devices in the first beam is better than a fifth threshold.

[0422] In this way, the network device can determine, from among the set of different polarization manners measured by all terminal devices in the first beam, a polarization manner with the best CSI of the channel as the polarization manner of the first beam, thereby improving the beam quality.

[0423] In manner 14, before determining the fourth indication information, the network device can also acquire the CSI of the channel of the different polarization manners measured by all terminal devices in the first beam. The network device can acquire the CSI of the channel of the different polarization manners measured by each terminal device in the first beam in sequence to obtain the CSI of the channel of the different polarization manners measured by all terminal devices in the first beam. The network device can acquire the CSI of the channel of the different polarization manners measured by a terminal device in the first beam by referring to steps 2.1-2.3 described above, which will not be described herein again.

[0424] Manner 15, the network device determines the fourth indication information according to the service requirements of all terminal devices in the first beam.

[0425] Optionally, the network device can determine at least one available polarization manner according to the service requirements of all terminal devices in the first beam, and then determine an available polarization manner from the at least one available polarization manner as the second polarization manner and generate the fourth indication information.

[0426] In a possible implementation, if the twenty-first condition is met, the network device can determine that the cross-polarization multiplexing is an available polarization manner. The twenty-first condition can include that the throughput of more than (or ≥) a second proportion of terminal devices among all terminal devices in the first beam is greater than (or ≥) the throughput threshold. In this way, the network device can enable the cross-polarization multiplexing for the terminal devices in the first beam when the service requirement in the first beam is large, thereby improving the throughput of the terminal devices in the first beam.

[0427] In another possible implementation, if the twenty-second condition is met, the network device can determine that the single polarization manner is an available polarization manner. The twenty-second condition can include that the throughput of more than (or ≥) a third proportion of terminal devices among all terminal devices in the first beam is less than (or ≤) the throughput threshold. In this way, the network device can disable the cross-polarization multiplexing for the terminal devices in the first beam when the service requirement in the first beam is small, thereby saving the power consumption of the terminal devices in the first beam.

[0428] In manner 15, before determining the fourth indication information, the network device can also acquire the service requirements of all terminal devices in the first beam. The network device can acquire the service requirements of each terminal device in the first beam in sequence to obtain the service requirements of all terminal devices in the first beam.

[0429] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0430] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0431] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0432] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0433] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0434] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0435] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0436] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0437] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0438] Optionally, the network device can determine at least one available polarization mode according to the polarization modes expected by all terminal devices within the first beam; then determine one available polarization mode as the second polarization mode in the at least one available polarization mode, and generate the fourth indication information.

[0439] In this way, the network device can adjust the polarization mode of the first beam to a single polarization mode when the weather in the first beam coverage of the first beam is bad, thereby reducing signal interference and improving communication quality.

[0440] In mode 17, before the network device determines the fourth indication information, mode 17 can further include that the network device obtains the weather in the first beam coverage in the first beam. The network device can directly obtain the weather in the first beam coverage in the first beam through weather information of a certain spatial scale.

[0441] In mode 18, the network device determines the fourth indication information according to the crosstalk between the orthogonal polarization channels of all terminal devices in the first beam.

[0442] Optionally, the network device can determine at least one available polarization mode according to the crosstalk between the orthogonal polarization channels of all terminal devices in the first beam, and then determine one available polarization mode as the second polarization mode from the at least one available polarization mode by using one or more of modes 13 to 17, and generate the fourth indication information.

[0443] In a possible implementation, if the twenty-fifth condition is met, the network device can determine that the single polarization mode is an available polarization mode, and determine that the cross-polarization multiplexing is an unavailable polarization mode. The twenty-fifth condition can include that the crosstalk between the orthogonal polarization channels of more than (or ≥) a sixth proportion of terminal devices among all terminal devices in the first beam is greater than (or ≥) a first crosstalk threshold. In this way, the network device can limit the polarization mode of the first beam to a single polarization mode when the crosstalk between the orthogonal polarization channels of most terminal devices in the first beam and the network device is serious, thereby reducing signal interference and improving communication quality.

[0444] In another possible implementation, if the twenty-sixth condition is met, the network device can determine that the cross-polarization multiplexing is an available polarization mode. The twenty-sixth condition can include that the crosstalk between the orthogonal polarization channels of more than (or ≥) a seventh proportion of terminal devices among all terminal devices in the first beam is less than (or ≤) the first crosstalk threshold. In this way, the network device can adjust the polarization mode of the first beam to cross-polarization multiplexing when the crosstalk between the orthogonal polarization channels of most terminal devices in the first beam and the network device is not serious, thereby improving throughput.

[0445] In mode 18, before the network device determines the fourth indication information, the network device can further obtain the crosstalk between the orthogonal polarization channels of all terminal devices and the network device in the first beam. The network device can obtain the crosstalk between the orthogonal polarization channels of each terminal device and the network device in the first beam in sequence to obtain the crosstalk between the orthogonal polarization channels of all terminal devices and the network device in the first beam.

[0446] It can be understood that the manner 18 can be implemented in combination with one or more of the above-mentioned manners 13-17, and the relevant combination manners refer to the following examples 14-26 including the manner 18.

[0447] In some possible embodiments, when the trigger condition is met, the network device can determine the fourth indication information according to the trigger condition. The trigger condition can include any one of the twentieth condition to the twenty-sixth condition in the above-mentioned manners 14-18, and the trigger condition can trigger the network device to schedule the polarization manner of the first beam. In other words, if any one of the twentieth condition to the twenty-sixth condition is met, the network device can determine the fourth indication information according to the process corresponding to the met condition, so as to schedule the polarization manner of the first beam.

[0448] In this way, the network device can discover the problem existing in the polarization manner of the first beam in time, and adjust the polarization manner of the first beam in time, so that the polarization manner of the first beam is more flexible and has finer granularity, thereby improving the spectrum efficiency.

[0449] It can be understood that the above-mentioned manners 13-18 can be implemented alone or in combination, and the embodiments of the present application do not limit this. The following will combine several examples to illustrate the combined implementation of the manners 13-15 and the manners 17 and 18:

[0450] Example 3, when the manners 13, 14, 15, 17, and 18 are implemented in combination, the network device can determine a polarization manner as the second polarization manner from the polarization manners supported by all terminal devices in the first beam according to the CSI of the channels of different polarization manners measured by all terminal devices in the first beam, the service demand of all terminal devices in the first beam, the weather condition between all terminal devices in the first beam and the network device, and the crosstalk condition between the orthogonal polarization channels of all terminal devices in the first beam, thereby determining the fourth indication information.

[0451] In the above-mentioned multiple ways, the network device can determine at least one available polarization mode according to different information, including the CSI of the channel of different polarization modes measured by all terminal devices in the first beam, the service demand of all terminal devices in the first beam, the weather condition between all terminal devices in the first beam and the network device, and the crosstalk condition between the orthogonal polarization channels of all terminal devices in the first beam. The process of determining at least one available polarization mode by the network device according to different information can refer to the above-mentioned ways 14-18, and will not be repeated here.

[0452] In the above-mentioned multiple ways, the network device can determine at least one available polarization mode according to different information, including the CSI of the channel of different polarization modes measured by all terminal devices in the first beam, the service demand of all terminal devices in the first beam, the weather condition between all terminal devices in the first beam and the network device, and the crosstalk condition between the orthogonal polarization channels of all terminal devices in the first beam. The process of determining at least one available polarization mode by the network device according to different information can refer to the above-mentioned ways 14-18, and will not be repeated here.

[0453] In other words, when the above-mentioned multiple ways are combined, the network device can determine multiple polarization mode sets according to different information respectively, and determine one of the polarization modes supported by all terminal devices in the first beam as the second polarization mode from the polarization modes included in the multiple polarization mode sets.

[0454] In example 4, when the way 13 and the way 14 are combined, the network device can determine one of the polarization modes supported by all terminal devices in the first beam as the second polarization mode according to the CSI of the channel of different polarization modes measured by all terminal devices in the first beam, thereby determining the fourth indication information.

[0455] It can be understood that when the way 1-way 3 and the way 5-way 6 are combined, multiple of them can be combined arbitrarily, and the specific implementation process can refer to the above examples, which will not be enumerated one by one here.

[0456] According to the above description of the thirteenth to eighteenth manners, the network device can determine the fourth indication information according to one or more of the polarization manners supported by all the terminal devices in the first beam, the channel state information of the channels of different polarization manners measured by all the terminal devices in the first beam, the service requirements of all the terminal devices in the first beam, the expected polarization manners of all the terminal devices in the first beam, the weather conditions between all the terminal devices in the first beam and the network device, and the crosstalk conditions between all the orthogonal polarization channels in the first beam. In other words, the fourth indication information can be determined according to one or more of the polarization manners supported by all the terminal devices in the first beam, the channel state information of the channels of different polarization manners measured by all the terminal devices in the first beam, the service requirements of all the terminal devices in the first beam, the expected polarization manners of all the terminal devices in the first beam, the weather conditions between all the terminal devices in the first beam and the network device, and the crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0457] It should be understood that, in the thirteenth to eighteenth manners, the network device can determine a polarization manner more suitable for all the terminal devices in the first beam in combination with multiple kinds of information, and schedule the polarization manner for all the terminal devices in the first beam through the fourth indication information, which can enable all the terminal devices in the first beam to work in a better polarization manner, thereby improving the communication quality and reducing the power consumption, and can also make the polarization manner scheduling for all the terminal devices in the first beam more flexible and have a finer granularity, thereby improving the spectrum efficiency.

[0458] Optionally, the fourth indication information can also be used to indicate the duration of the second polarization manner.

[0459] The duration of the second polarization manner can be understood as the length of time during which the polarization manner of the first beam is the second polarization manner. The duration of the second polarization manner can also be referred to as a timer of the second polarization manner. When the timer expires, the first beam can return to the default polarization manner.

[0460] In this way, the network device can indicate the duration during which all the terminal devices in the first beam work in the second polarization manner, and after the duration indicated by the fourth indication information expires, all the terminal devices in the first beam can return to the previous polarization manner. In this way, the network device can not need to indicate the terminal devices in the first beam to return to the previous polarization manner through another indication signaling, which can save the signaling overhead. Moreover, the flexibility of the polarization manner scheduling for the terminal devices can be further improved.

[0461] The implementation of the fourth indication information indicating the duration of the second polarization manner can refer to the above description of the thirteenth to eighteenth manners. Figure 6The description of the implementation of the timer configuration information in the method embodiments is not repeated here.

[0462] Optionally, the network device can broadcast the timer configuration information. The timer configuration information can include the correspondence between at least one timer index and at least one timer, and the timer refers to the duration of the second polarization mode. For example, the network device can send the timer configuration information to all terminal devices in the cell through SIB.

[0463] The implementation of the configuration information of the timer can refer to the above Figure 6 The description of the implementation of the timer configuration information in the method embodiments is not repeated here.

[0464] Optionally, the fourth indication information can include the index of the SSB, and the index of the SSB corresponds to the second polarization mode.

[0465] The index of the SSB configured by the network device in the first beam is consistent. In this way, when each terminal device in the first beam receives the fourth indication information, it can determine that the fourth indication information indicates that the polarization mode of the first beam is the second polarization mode according to the correspondence between the index of the SSB and the second polarization mode, so that the network device can switch the polarization mode of the first beam to the second polarization mode, that is, the polarization mode of the terminal device in the first beam can be switched to the second polarization mode, and the polarization mode of the terminal device in a certain beam can be scheduled at the beam level.

[0466] Specifically, the network device can configure the correspondence between at least one index of the SSB and at least one polarization mode in advance for all terminal devices in the cell. For example, the network device configures the correspondence between at least one index of the SSB and at least one polarization mode in advance for all terminal devices in the cell as follows: the even index of the SSB indicates that the first polarization mode is left-handed circular polarization, and the odd index of the SSB indicates that the first polarization mode is right-handed circular polarization. Then, the network device can configure the index of the SSB of the first beam as 1, and send the fourth indication information to the terminal device in the first beam, wherein the fourth indication information includes the index of the SSB as SSB1, thereby indicating that the polarization mode of the terminal device in the first beam is switched to right-handed circular polarization.

[0467] Optionally, the fourth indication information can be carried in any one of RRC, DCI or MAC CE, which is not limited.

[0468] Optionally, the fourth indication information can include the index of the BWP, and the index of the BWP corresponds to the second polarization mode.

[0469] With reference to the implementation manner that the index of the BWP corresponds to the second polarization mode, the implementation manner that the index of the SSB corresponds to the second polarization mode can be referred to, and details are not described herein again.

[0470] Optionally, the fourth indication information can include a time-frequency location of the CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0471] With reference to the implementation manner that the time-frequency location of the CSI-RS corresponds to the second polarization mode, the implementation manner that the index of the SSB corresponds to the second polarization mode can be referred to, and details are not described herein again.

[0472] Optionally, the fourth indication information can include a measurement identifier of the CSI-RS, and the measurement identifier of the CSI-RS corresponds to the second polarization mode. The measurement identifier can also be referred to as an identifier (identifier), and no limitation is made in this regard.

[0473] With reference to the implementation manner that the measurement identifier of the CSI-RS corresponds to the second polarization mode, the implementation manner that the index of the SSB corresponds to the second polarization mode can be referred to, and details are not described herein again.

[0474] Optionally, Figure 10 In the illustrated communication method, the network device can further send the first mapping relationship to the terminal device. The first mapping relationship can include a mapping relationship between the index of the at least one SSB and the at least one polarization mode; or the first mapping relationship can include a mapping relationship between the time-frequency location of the at least one CSI-RS and the at least one polarization mode.

[0475] In actual application, the correspondence between the index of the SSB and the second polarization mode can be adjusted according to requirements, for example, the SSB3 indicates the second polarization mode at the first time, and the SSB4 indicates the second polarization mode after a period of time, and no limitation is made in this regard in the embodiments of the application.

[0476] The first mapping relationship can be carried in SIB signaling.

[0477] In the illustrated communication method, Figure 10 In the illustrated communication method, the fourth indication information can schedule the polarization mode of the terminal device, and is carried in beam level information such as a reference signal. In this way, the network device can schedule the polarization mode of the terminal device at the beam level, that is, the network device can adjust the polarization mode of the terminal device in a certain beam, so that the polarization mode of the terminal device is scheduled more flexibly, and the granularity of the scheduling is finer, thereby improving the spectrum efficiency.

[0478] The application provides another embodiment, which can schedule the polarization mode of the terminal device at the cell level.

[0479] Please refer to Figure 11 , Figure 11 The flowchart of the communication method of the embodiment of the application is shown in Figure 11 The communication method can be applied to the communication system and can be executed by the terminal device or the network device in the communication system. The communication method can schedule the polarization mode of the terminal device at the cell level, that is, the network device can adjust the polarization mode of the terminal device in the cell. The method can include S1101-S1103, which are described in turn as follows.

[0480] S1101, the network device determines fifth indication information.

[0481] The fifth indication information is used to indicate the third polarization mode of the first cell; or in other words, the fifth indication information can be used to indicate that the polarization mode of the first cell is switched to the third polarization mode; or the fifth indication information can be used to indicate that the first cell works in the third polarization mode; or the fifth indication information can be used to indicate that the polarization mode of the first cell is the third polarization mode. It should be pointed out that the meanings expressed by the above-mentioned several ways of expressing the fifth indication information are consistent and can be mixed without special instructions. The first cell here can be a cell of the network device.

[0482] The third polarization mode can include any one of left circular polarization, right circular polarization, linear polarization or cross polarization multiplexing. The linear polarization can include any one of horizontal polarization, vertical polarization, +45° polarization and -45° polarization; the cross polarization multiplexing can include any one of horizontal-vertical cross polarization multiplexing, ±45° cross polarization multiplexing and left-right circular polarization cross polarization multiplexing.

[0483] S1102, the network device sends the fifth indication information to the terminal device in the first cell. Correspondingly, the terminal device in the first cell receives the fifth indication information from the network device.

[0484] S1103, the terminal device in the first cell communicates with the network device based on the third polarization mode.

[0485] The terminal device in the first cell communicates with the network device based on the third polarization mode can be understood as that the terminal device in the first cell works in the third polarization mode, or that the terminal device in the first cell switches the polarization mode to the third polarization mode.

[0486] Exemplarily, if the third polarization mode indicated by the fifth indication information is left-handed circular polarization, the terminal device in the first cell can work in the polarization mode of left-handed circular polarization to implement communication with the network device. If the third polarization mode indicated by the fifth indication information is left-handed circular polarization and right-handed circular polarization cross-polarization multiplexing, the terminal device in the first cell can work in the polarization mode of left-handed circular polarization and right-handed circular polarization cross-polarization multiplexing to implement communication with the network device.

[0487] In S1101, the network device determines the implementation of the fifth indication information, which can include the following modes 19-24.

[0488] Mode 19, the network device determines the fifth indication information according to the polarization modes supported by all terminal devices in the first cell.

[0489] Mode 20, the network device determines the fifth indication information according to the CSI of the channels of different polarization modes measured by all terminal devices in the first cell.

[0490] In mode 20, the network device can determine the polarization mode with the best CSI of a channel in the set of different polarization modes measured by all terminal devices in the first cell as the polarization mode of the first cell, thereby improving the communication quality of the cell.

[0491] Mode 21, the network device determines the fifth indication information according to the service demand of all terminal devices in the first cell.

[0492] In mode 21, the network device can enable cross-polarization multiplexing for terminal devices in the first cell when the service demand in the first cell is large, thereby improving the throughput of terminal devices in the first cell. In addition, the network device can disable cross-polarization multiplexing for terminal devices in the first cell when the service demand in the first cell is small, thereby saving the power consumption of terminal devices in the first cell.

[0493] Mode 22, the network device determines the fifth indication information according to the expected polarization mode of all terminal devices in the first cell.

[0494] In mode 22, the network device can determine the polarization mode expected by the majority of terminal devices in the first cell as the polarization mode of the first cell from the set of polarization modes expected by all terminal devices in the first cell, thereby improving the communication quality of the cell.

[0495] Mode 23, the network device determines the fifth indication information according to the weather condition between all terminal devices in the first cell and the network device.

[0496] In mode 23, the network device can adjust the polarization mode of the first cell to a single polarization mode when the weather condition between most terminal devices in the first cell and the network device is bad, so as to reduce signal interference and improve communication quality.

[0497] In mode 24, the network device determines the fifth indication information according to the cross-talk between the orthogonal polarization channels of all terminal devices in the first cell.

[0498] In mode 24, the network device can limit the polarization mode of the first cell to a single polarization mode when the cross-talk between the orthogonal polarization channels between most terminal devices in the first cell and the network device is serious, so as to reduce signal interference and improve communication quality. In addition, the network device can adjust the polarization mode of the first cell to cross-polarization multiplexing when the cross-talk between the orthogonal polarization channels between most terminal devices in the first cell and the network device is not serious, so as to improve throughput. The specific implementation of determining the fifth indication information in modes 19-24 can refer to the way of determining the fourth indication information in modes 13-18, the difference being that the fourth indication information is determined according to the relevant parameters in the beam range, and the fifth indication information is determined according to the relevant parameters in the cell range. Here, no longer repeated. For example, the implementation process of mode 20 can refer to mode 14, and the "first beam" in mode 14 is replaced by "first cell", "second polarization mode" is replaced by "third polarization mode", and "fourth indication information" is replaced by "fifth indication information".

[0499] In some possible embodiments, when the trigger condition is met, the network device can determine the fifth indication information according to the trigger condition. The trigger condition can include any one of the conditions in modes 20-24, and the trigger condition can trigger the network device to schedule the polarization mode of the first cell. In other words, if any one of modes 20-24 is met, the network device can determine the fifth indication information according to the process corresponding to the met condition, so as to schedule the polarization mode of the first cell.

[0500] It can be understood that modes 19-24 can be implemented alone or in combination, and the embodiments of the present application do not limit this. Similarly, specific examples can refer to examples 3-4 described above, and no longer repeated here.

[0501] According to the above description of the 19th to 24th manners, the network device can determine the fifth indication information according to one or more of the polarization modes supported by all terminal devices in the first cell, the channel state information of the channels of different polarization modes measured by all terminal devices in the first cell, the service requirements of all terminal devices in the first cell, the expected polarization modes of all terminal devices in the first cell, the weather conditions between all terminal devices in the first cell and the network device, and the crosstalk conditions between all orthogonal polarization channels in the first cell. In other words, the fifth indication information can be determined according to one or more of the polarization modes supported by all terminal devices in the first cell, the channel state information of the channels of different polarization modes measured by all terminal devices in the first cell, the service requirements of all terminal devices in the first cell, the expected polarization modes of all terminal devices in the first cell, the weather conditions between all terminal devices in the first cell and the network device, and the crosstalk conditions between all orthogonal polarization channels in the first cell.

[0502] It should be understood that in the above 19th to 24th manners, the network device can determine a polarization mode more suitable for all terminal devices in the first cell in combination with multiple types of information, and schedule the polarization mode for all terminal devices in the first cell through the fifth indication information, which can enable all terminal devices in the first cell to work in a better polarization mode, thereby improving communication quality and reducing power consumption, and improving spectral efficiency.

[0503] Optionally, the fifth indication information can also be used to indicate the duration of the third polarization mode.

[0504] The duration of the third polarization mode can be understood as the length of time during which the polarization mode of the first cell is the third polarization mode. The duration of the third polarization mode can also be referred to as a timer of the third polarization mode. When the timer expires, the first cell can return to the default polarization mode.

[0505] In this way, the network device can indicate the duration for which all terminal devices in the first cell work in the third polarization mode. After the duration indicated by the fifth indication information expires, all terminal devices in the first cell can return to the previous polarization mode. In this way, the network device can not need to indicate the terminal devices in the first cell to return to the previous polarization mode through another indication signaling, which can save signaling overhead. Furthermore, the flexibility of scheduling the polarization mode of the terminal device can be further improved.

[0506] The implementation of the fifth indication information indicating the duration of the third polarization mode can refer to the description of the implementation of the first indication information indicating the duration of the first polarization mode in the above method embodiments, such as the 7th and 8th manners, which will not be described herein again. Figure 6 ​

[0507] Optionally, the network device can broadcast the timer configuration information. The timer configuration information can comprise a correspondence between at least one timer index and at least one timer, which refers to the duration of the third polarization mode. For example, the network device can send the timer configuration information to all terminal devices in the cell through SIB.

[0508] The implementation of the configuration information of the timer can refer to the description of the implementation of the configuration information of the timer in the method embodiment described above. Figure 6 The implementation of the configuration information of the timer can refer to the description of the implementation of the configuration information of the timer in the method embodiment described above.

[0509] In the embodiments of the present application, the fifth indication information can be carried in cell-level information.

[0510] The cell-level information can be understood as information sent by the network device to terminal devices in a certain cell. Except for the terminal devices in the cell, other terminal devices cannot successfully decode the cell-level information. The fifth indication information is carried in the cell-level information, which indicates that the device scheduled by the fifth indication information is a terminal device in a certain cell.

[0511] Optionally, the cell-level information can be SIB. In other words, the fifth indication information can be carried in SIB.

[0512] Optionally, the fifth indication information can be carried by using one or more bits in SIB. The value of the one or more bits in SIB can be used to indicate the third polarization mode. The following describes several possible implementation manners respectively.

[0513] Example 5: The fifth indication information is carried by using four bits in SIB. The four bits can indicate the third polarization mode in the indication manner shown in Table 15.

[0514] Table 15

[0515]

[0516] The SIBx message format of example 5 can be as follows:

[0517]

[0518] Example 6: The fifth indication information is carried by using three bits in SIB. The three bits can indicate the third polarization mode in the indication manner shown in Table 16. In Table 16, x1 and x2 of SIBx1 and SIBx2 are different. When there is no SIBx2 field in SIB, it is implicitly indicated that the uplink polarization mode and the downlink polarization mode are the same.

[0519] Table 16

[0520]

[0521]

[0522] The SIBx message format of Example 6 can be as follows:

[0523]

[0524] In Example 7, 4 bits in the SIB are used to carry the fifth indication information. The 4 bits can indicate the third polarization mode in the manner shown in Table 17 as follows.

[0525] Table 17

[0526]

[0527] The SIBx message format of Example 7 can be as follows:

[0528]

[0529] Optionally, it can be seen that the 4 bits in Table 22 above can also indicate more polarization modes, as shown in Table 18 below.

[0530] Table 18

[0531]

[0532] In the communication method shown in Figure 11 , the fifth indication information can schedule the polarization mode of the terminal device, and is carried in cell-level information such as an SIB. In this way, the network device can schedule the polarization mode of the terminal device at the cell level, that is, the network device can adjust the polarization mode of the terminal device in a certain cell, so that the polarization mode of the terminal device is more flexible.

[0533] The communication methods shown in Figure 6 , Figure 10 , Figure 11 may be implemented independently or in combination, and are not limited in this regard.

[0534] The present application provides another embodiment for implementing the network device to send the polarization mode of the neighboring cell to the terminal device, so as to accelerate the speed of the terminal device in switching the neighboring cell.

[0535] In some possible embodiments, in order to accelerate the speed of cell switching, the present application embodiment further provides a communication method, please refer to Figure 12 , Figure 12 for the flowchart of the communication method of the present application embodiment Figure 4The method can include S1201-S1203, which are described in sequence as follows.

[0536] S1201, the network device determines second indication information.

[0537] The second indication information is used to indicate the polarization mode of a neighboring cell of a cell where the terminal device is located; or in other words, the second indication information is used to indicate the polarization mode of signal measurement of the neighboring cell of the cell where the terminal device is located.

[0538] The polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The number of the neighboring cells of the cell where the terminal device is located can be one or more. When the number of the neighboring cells of the cell where the terminal device is located is one, the polarization mode of the neighboring cell includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing; when the number of the neighboring cells of the cell where the terminal device is located is multiple, the polarization mode of the neighboring cell includes one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0539] The second indication information can also be referred to as polarization mode indication information of the neighboring cell, which is not limited.

[0540] Optionally, the manner in which the network device determines the second indication information can include that the network device determines the cell where the terminal device is located; obtains the polarization mode of at least one neighboring cell around the cell where the terminal device is located, and generates the second indication information, that is, the second indication information can be used to indicate the polarization mode of at least one neighboring cell around the cell where the terminal device is located.

[0541] Optionally, the second indication information can be carried in terminal-level information or cell-level information. The terminal-level information can include DCI, MAC CE, or RRC, and the cell-level information can include SIB.

[0542] Optionally, the second indication information is also used to indicate the polarization mode of the neighboring cell of the cell where the terminal device in a first state is located, the first state includes a connected state or an inactive state, and the second indication information is carried in terminal-level information.

[0543] Taking that the second indication information is carried in UE-Specific RRC as an example. Figure 13 An RRC state conversion schematic diagram is provided for the embodiments of the present application. Please refer to Figure 13 The terminal device can be in the following states: a connected state, an inactive state, and a dormant state. The connected state can be denoted as RRC_connected, the inactive state can be denoted as RRC_inactive, and the dormant state can be denoted as RRC_idle. The terminal device can switch between different states.

[0544] For the terminal device in the connected state, the second indication information can be carried in RRCReconfiguration. The network device can send the terminal device RRCReconfiguration, which is used to indicate the polarization mode of the neighboring cell of the cell where the terminal device in the connected state is located, that is, to indicate the polarization mode used by the terminal device when performing signal quality measurement on the neighboring cell during cell switching.

[0545] For the terminal device in the inactive state, the second indication information can be carried in RRCResume. The network device can send the terminal device RRCResume, which is used to indicate the polarization mode of the neighboring cell of the cell where the terminal device in the inactive state is located, that is, to indicate the polarization mode used by the terminal device in the inactive state when performing signal quality measurement on the neighboring cell during cell switching when switching to the connected state.

[0546] When the second indication information is carried in RRCReconfiguration or RRCResume, the second indication information can be, for example, an RRC information element (RRC IE) carried in RRCReconfiguration or RRCResume. Specifically, the second indication information can be an ssbFrequency field in a MeasObjectNR of the RRC IE, which can be used to indicate the polarization mode of the neighboring cell of the cell where the terminal device is located.

[0547] In implementation, the network device can configure in advance the correspondence between the reference signal (RS) measurement frequency point of the neighboring cell in the ssbFrequency field and the polarization mode of the neighboring cell for the terminal device, and then send the RS measurement frequency point of the neighboring cell to the terminal device through the ssbFrequency field to indicate the polarization mode of the neighboring cell of the cell where the terminal device is located. The RS here can be SSB or CSI-RS, which is not limited.

[0548] The network device can configure the terminal device with the correspondence between the RS measurement frequency point of the neighbor cell in the ssbFrequency field and the polarization mode of the neighbor cell through a polarCongfig field. For example, Table 19 shows the correspondence between the RS measurement frequency point of the neighbor cell in the ssbFrequency field and the polarization mode of the neighbor cell. Referring to Table 19, if the polarization mode of the neighbor cell of the cell where the terminal device is located is left circular polarization, the network device can send the RS measurement frequency point of the neighbor cell as F0 to the terminal device through the ssbFrequency field to indicate that the polarization mode of the neighbor cell of the cell where the terminal device is located is left circular polarization. In Table 19, the object refers to the object to be measured, which can be a cell or a beam. Here, the object is uniformly described, and will not be limited in the following.

[0549] Table 19

[0550]

[0551] In the above example of Table 19, the network device can delete the correspondence of “right circular polarization” indicated by “F0” in Table 19 through a polarToRemoveList. The network device can add a correspondence between the RS measurement frequency point of the neighbor cell and the polarization mode of the neighbor cell in Table 19 through a polarToAddList. Referring to Table 20, “F1” and “right circular polarization”.

[0552] Table 20

[0553]

[0554]

[0555] In this way, through the second indication information, the terminal device in the connected state or the inactive state can obtain the polarization mode of the neighbor cell in advance, that is, can obtain the polarization mode used when measuring the signal quality of the neighbor cell in advance. Therefore, when performing cell switching, the terminal device can measure the signal quality of the neighbor cell based on the polarization mode of the neighbor cell indicated by the second indication information to implement cell switching. This can improve the speed and accuracy of the terminal device in measuring the signal of the neighbor cell, quickly and accurately feed back the measurement result, improve the success rate of cell switching, reduce the probability of initiating cell reselection due to radio link failure (RLF), and avoid requesting the polarization mode of the neighbor cell from the network device during switching. This can speed up the cell switching speed.

[0556] Optionally, the second indication information is further used for indicating the polarization mode of the neighbor cell of the cell where the terminal device in the second state is located, the second state includes the inactive state or the idle state, and the second indication information is carried in cell level information.

[0557] With reference to Figure 13 For the terminal device in the inactive state or the idle state, the second indication information can be carried in the SIB, and the index (SIB X) of the SIB can be used to indicate the polarization mode of the neighbor cell of the cell where the terminal device is located. The value of "X" in the SIB X can be any one of 0-14, and X can also be more values as the communication technology develops, and the value of X is not limited in the embodiments of the application. For example, SIB 4 and SIB 11 can be used to indicate the polarization mode of the neighbor cell of the cell where the terminal device is located.

[0558] For example, the polarization mode of the neighbor cell of the cell where the terminal device is located can be indicated by the measurement idle carrier list new radio (measIdleCarrierListNR) in the SIB 11 or the inter-frequency carrier frequency list (interFreqCarrierFreqList) in the SIB 4.

[0559] In implementation, the measurement frequency of the RS (including CSI-RS, SSB) of the neighbor cell corresponding to the cell to be measured can be indicated by the measIdleCarrierListNR in the SIB 11 or the interFreqCarrierFreqList in the SIB 4. A polarization indication field is added in the measIdleConfigSIB field or other fields of the SIB 11 or in the SIB 4 to indicate the polarization mode. The polarization indication field can indicate a polarization mode list containing addition and removal, or it can be a single field indicating different polarization measurement modes in permutation combination.

[0560] By using the above-mentioned second indication information, the current cell can obtain the polarization and RS information of the neighbor cell through the Xn interface between the core network or the gNodeB or the internal communication of the gNodeB, to indicate how the UE in different RRC states in the coverage of the current cell measures the signal quality of the neighbor cell.

[0561] In this way, through the second indication information, the terminal device in the inactive state or the idle state can obtain the polarization mode of the neighboring cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighboring cell in advance, so that when performing cell reselection, the terminal device can perform signal quality measurement on the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, to implement cell reselection, can improve the cell reselection success rate, avoid requesting the polarization mode of the neighboring cell from the network device when reselecting, and can accelerate the cell reselection speed.

[0562] S1202, the network device sends second indication information to the terminal device. Correspondingly, the terminal device receives the second indication information from the network device.

[0563] Optionally, after S1202, Figure 12 The communication method shown in the figure can further include:

[0564] S1203, the terminal device performs cell switching according to the second indication information when performing cell switching.

[0565] In S1201-S1203, through the second indication information, the terminal device can obtain the polarization mode of the neighboring cell in advance, that is, can obtain the polarization mode used when performing signal quality measurement on the neighboring cell in advance, so that when performing cell switching, the terminal device can perform signal quality measurement on the neighboring cell based on the polarization mode of the neighboring cell indicated by the second indication information, to implement cell switching, can improve the cell switching success rate, avoid requesting the polarization mode of the neighboring cell from the network device when switching, and can accelerate the cell switching speed.

[0566] The present application provides another embodiment for implementing the network device sending the polarization mode of the neighboring beam to the terminal device, and accelerating the neighboring beam switching speed of the terminal device.

[0567] In order to accelerate the beam switching speed, the present application embodiment further provides a communication method, please refer to Figure 14 , Figure 14 The flowchart of the communication method of the present application embodiment is shown in the figure Figure 5 , which can include S1401-S1403, which are described in turn below.

[0568] S1401, the network device determines third indication information.

[0569] The third indication information is used to indicate the polarization mode of the neighboring beam of the beam where the terminal device is located; or in other words, the third indication information is used to indicate the polarization mode of signal measurement of the neighboring beam of the beam where the terminal device is located.

[0570] The polarization mode of the adjacent beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The number of adjacent beams of the beam in which the terminal device is located can be one or more. When the number of adjacent beams of the beam in which the terminal device is located is one, the polarization mode of the adjacent beam includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing; when the number of adjacent beams of the beam in which the terminal device is located is multiple, the polarization mode of the adjacent beam includes one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0571] The third indication information can also be referred to as polarization mode indication information of the adjacent beam, which is not limited.

[0572] Optionally, the manner in which the network device determines the third indication information can include that the network device determines the beam in which the terminal device is located, obtains the polarization mode of at least one adjacent beam around the beam in which the terminal device is located, and generates the third indication information, that is, the third indication information can be used to indicate the polarization mode of at least one adjacent beam around the beam in which the terminal device is located.

[0573] Optionally, the third indication information can be carried in DCI or MAC CE or RRC, which is not limited. The third indication information can be carried in DCI format or MAC CE index or RRC IE.

[0574] For example, the third indication information is carried in RRC IE.

[0575] For example, the third indication information can be added in CSI-MeasConfig of the RRC IE. In this way, one third indication information can indicate the polarization modes of multiple adjacent beams, saving bits.

[0576] For another example, the third indication information can be added in CSI-SSB-ResourceSet of the RRC IE.

[0577] For another example, the third indication information can be added in NZP-CSI-RS-Resource or NZP-CSI-RS-ResourceSet.

[0578] When applied, the third indication information can also indicate that the information indicated by the third indication information takes effect. Alternatively, the third indication information can also indicate that the information indicated by the third indication information does not take effect, and the network device can indicate that the information indicated by the third indication information takes effect through another information (such as RRC, DCI, or MAC CE), which is not limited.

[0579] S1402, the network device sends third indication information to the terminal device. Correspondingly, the terminal device receives the third indication information from the network device.

[0580] Optionally, after S1402, Figure 14 The communication method shown can also include:

[0581] S1403, the terminal device performs beam switching according to the third indication information when performing beam switching.

[0582] In S1401-S1403, through the third indication information, the terminal device can obtain the polarization mode of the adjacent beam in advance, that is, the polarization mode used when measuring the signal quality of the adjacent beam, so that when performing beam switching, the terminal device can measure the signal quality of the adjacent beam based on the polarization mode of the adjacent beam indicated by the third indication information, to realize beam switching, which can improve the success rate of beam switching, avoid requesting the polarization mode of the adjacent beam from the network device when switching, and speed up the beam switching speed.

[0583] The present application provides another embodiment for realizing that the terminal device actively requests the network device to schedule the polarization mode of the terminal device.

[0584] Please refer to Figure 15 , Figure 15 The flowchart of the communication method of the embodiment of the present application is shown in Figure 6 The method can include S1501-S1503, which are described one by one below.

[0585] S1501, the terminal device determines sixth indication information.

[0586] The sixth indication information is used to indicate the fourth polarization mode expected (or desired) by the terminal device; or in other words, the sixth indication information can be used to indicate that the terminal device expects the polarization mode to be switched to the fourth polarization mode; or the sixth indication information can be used to indicate that the terminal device expects to work in the fourth polarization mode; or the sixth indication information can be used to indicate that the polarization mode expected by the terminal device is the fourth polarization mode. It should be pointed out that the meanings expressed by these several ways of expressing the sixth indication information are consistent without special instructions, and they can be mixed.

[0587] The fourth polarization mode can include any one of left-hand circular polarization, right-hand circular polarization, linear polarization or cross-polarization multiplexing.

[0588] S1502, the terminal device sends the sixth indication information to the network device. Correspondingly, the network device receives the sixth indication information from the terminal device.

[0589] S1503, the network device schedules the polarization mode of the terminal device according to the sixth indication information.

[0590] The implementation of S1503 can refer to the above-described manner 4, and details are not described herein.

[0591] In S1501, the implementation of the terminal device determining the sixth indication information can include the following manners 25-29, which are described as follows.

[0592] Manner 25: The terminal device determines the sixth indication information according to the polarization mode supported by the terminal device.

[0593] Manner 26: The terminal device determines the sixth indication information according to the CSI of the channels of different polarization modes measured by the terminal device.

[0594] In manner 26, when the channel quality of one polarization mode is worse than that of another polarization mode, the polarization mode with better channel quality can be used as the fourth polarization mode to apply to the network device to switch to the polarization mode with better channel quality, so as to improve the communication efficiency. In manner 26, when the service demand of the terminal device is large and the channel quality of polarization multiplexing is good, the terminal device can apply to the network device to start polarization multiplexing to improve the throughput of the terminal device. In manner 26, if the terminal device currently uses two orthogonal polarization modes (denoted as A and B), and if the channel quality of A is poor, the terminal device can apply to the network device to work in B, which has better channel quality, so as to improve the communication efficiency of the terminal device.

[0595] Manner 27: The terminal device determines the sixth indication information according to the service demand of the terminal device.

[0596] In manner 27, when the service demand of the terminal device is large, the terminal device can apply to the network device to start polarization multiplexing to improve the throughput of the terminal device. When the service demand of the terminal device is small, the terminal device can apply to the network device to stop polarization multiplexing to further reduce the power consumption of the terminal device.

[0597] Manner 28: The terminal device determines the sixth indication information according to weather information.

[0598] In manner 28, when the terminal device works in cross-polarization multiplexing and the weather on the signal propagation path between the network device and the terminal device is bad, the terminal device can apply to the network device to work in a single polarization mode (such as left-handed circular polarization) to reduce signal interference and improve communication quality.

[0599] Manner 29: The terminal device determines the sixth indication information according to the crosstalk between orthogonal polarization channels.

[0600] In mode 29, when the crosstalk between the orthogonal polarization channels between the network device and the terminal device is serious, the terminal device can apply to the network device to limit the polarization mode to a single polarization mode, so as to reduce signal interference and improve communication quality. When the crosstalk between the orthogonal polarization channels between the network device and the terminal device is not serious, the terminal device can apply to the network device to adjust the polarization mode to cross-polarization multiplexing, so as to improve the throughput.

[0601] The specific implementation of determining the sixth indication information in the above modes 25-29 can correspond to the way of determining the first indication information in the above modes 1, 2, 3, 5, and 6, the difference being that the first indication information is determined by the network device, and the sixth indication information is determined by the terminal device. Here, no longer elaborated.

[0602] In some possible embodiments, when the trigger condition is met, the terminal device can determine the sixth indication information according to the trigger condition. The trigger condition can include any one of the conditions in the above modes 25-29, and the trigger condition can trigger the terminal device to apply to the network device to schedule the polarization mode of the terminal device. In other words, if the trigger condition is met, the terminal device can determine the sixth indication information according to the process corresponding to the met condition, so as to apply to the network device to schedule the polarization mode of the terminal device.

[0603] In this way, the terminal device can timely discover the problem of the polarization mode of the terminal device, and timely apply to the network device to adjust the polarization mode of the terminal device, so that the polarization mode scheduling of the terminal device is more flexible, and the spectrum efficiency can be improved.

[0604] It can be understood that the above modes 25-29 can be implemented alone or in combination, and the embodiments of the present application do not limit this. Similarly, specific examples can refer to the above examples 3-4, and no longer elaborated here. It can be known from the above description of the modes 25-29 that the terminal device can determine the sixth indication information according to one or more of the polarization modes supported by the terminal device, the CSI of the channels of different polarization modes measured by the terminal device, the service demand of the terminal device, the expected polarization mode of the terminal device, the weather condition between the terminal device and the terminal device, and the crosstalk condition between the orthogonal polarization channels. In other words, the sixth indication information can be determined according to one or more of the polarization modes supported by the terminal device, the CSI of the channels of different polarization modes measured by the terminal device, the service demand of the terminal device, the expected polarization mode of the terminal device, the weather condition between the terminal device and the terminal device, and the crosstalk condition between the orthogonal polarization channels.

[0605] It should be understood that in the above-mentioned manners 25-29, the terminal device can determine a polarization manner that is more suitable for the terminal device in combination with multiple types of information, and apply for scheduling the polarization manner for the terminal device by the sixth indication information to the network device. On the one hand, the terminal device can work in a better polarization manner, thereby improving the communication quality and reducing the power consumption. On the other hand, the polarization manner scheduling for the terminal device can be more flexible, and the granularity of the scheduling can be finer, thereby improving the spectrum efficiency.

[0606] Optionally, the sixth indication information can also be used to indicate the duration of the fourth polarization manner.

[0607] The duration of the fourth polarization manner can be understood as the length of time that the terminal device expects to work in the fourth polarization manner. The duration of the fourth polarization manner can also be referred to as a timer of the fourth polarization manner. When the timer expires, the terminal device can return to the default polarization manner of the cell broadcast by the network device.

[0608] In this way, the terminal device can apply for the duration of working in the fourth polarization manner to the network device. After the duration indicated by the sixth indication information expires, the terminal device can return to the previous polarization manner. In this way, the network device can no longer need to indicate the terminal device to return to the previous polarization manner by an indication signaling, thereby saving the signaling overhead and avoiding the network device waiting for the feedback of the terminal device to the indication signaling for a long time. Moreover, the flexibility of scheduling the polarization manner for the terminal device can be further improved.

[0609] The implementation of the sixth indication information indicating the duration of the fourth polarization manner can refer to the description of the implementation of the first indication information indicating the duration of the first polarization manner in the above-mentioned method embodiments, such as manner 7 and manner 8, which will not be described herein again. Figure 6

[0610] Optionally, when the twenty-seventh condition is met, the terminal device can determine the cross-polarization multiplexing as the fourth polarization manner. The terminal device can further obtain the first service requirement time of the terminal device, and determine the sixth indication information according to the first service requirement time. The sixth indication information is used to indicate that the expected polarization manner of the terminal device is the fourth polarization manner (i.e., the cross-polarization multiplexing), and the sixth indication information is also used to indicate the duration of the fourth polarization manner. The duration of the fourth polarization manner can be greater than (or ≥) the first service requirement time.

[0611] ​The twenty-seventh condition can include that the current polarization mode of the terminal device is a single polarization mode, and the throughput of the terminal device is greater than (or ≥) a first throughput threshold. The first service demand time refers to a time during which the throughput of the terminal device is continuously greater than (or ≥) the first throughput threshold. For example, assuming that the time during which the throughput of the terminal device is continuously greater than the first throughput threshold in a future period of time is 10 s, the first service demand time is 10 s, indicating that the service throughput of the terminal device is large in the future 10 s.

[0612] Exemplarily, the polarization modes supported by the terminal device include a left circular polarization mode, a right circular polarization mode, and a left-right circular polarization cross-polarization multiplexing. If the polarization mode of the terminal device is the left circular polarization mode, and the throughput of the terminal device is greater than the first throughput threshold (that is, the twenty-seventh condition is met), the terminal device can determine that the left-right circular polarization cross-polarization multiplexing is the fourth polarization mode. The terminal device can further obtain a first service demand time of the terminal device. Assuming that the first service demand time is 10 s, the terminal device can determine sixth indication information according to the first service demand time, the sixth indication information being used to indicate that the expected polarization mode of the terminal device is the left-right circular polarization cross-polarization multiplexing, and the sixth indication information being further used to indicate that the duration during which the terminal device is expected to work in the left-right circular polarization cross-polarization multiplexing is 10 s.

[0613] In this way, after the duration indicated by the sixth indication information expires, the terminal device can return to the single polarization mode from the cross-polarization multiplexing, thereby achieving self-closing of the cross-polarization multiplexing when the first service demand time of the terminal device ends, saving power consumption, and releasing air interface resources. Moreover, the network device can no longer need to indicate the terminal device to return to the previous polarization mode through an indication signaling, thereby saving signaling overhead and avoiding long-time waiting of the network device for feedback of the terminal device to the indication signaling.

[0614] Optionally, when the twenty-eighth condition is met, the terminal device can determine that the single polarization mode is the fourth polarization mode; the terminal device can further obtain a second service demand time of the terminal device, and determine the sixth indication information according to the second service demand time. The sixth indication information is used to indicate that the expected polarization mode of the terminal device is the fourth polarization mode (that is, the single polarization mode), and the sixth indication information is further used to indicate a duration of the fourth polarization mode, the duration of the fourth polarization mode being greater than (or ≥) the second service demand time.

[0615] The twenty-eighth condition can include that the current polarization mode of the terminal device is cross-polarization multiplexing, and the throughput of the terminal device is less than (or ≤) a third throughput threshold. The second service requirement time refers to a time during which the throughput of the terminal device is continuously less than (or ≤) the third throughput threshold. For example, assuming that the time during which the throughput of the terminal device is continuously less than the first throughput threshold in a future period of time is 10 s, the second service requirement time is 10 s, indicating that the service throughput of the terminal device is small in the future 10 s.

[0616] Exemplarily, the polarization modes supported by the terminal device include a left circular polarization mode, a right circular polarization mode, and left-right circular polarization cross-polarization multiplexing. If the polarization mode of the terminal device is left-right circular polarization cross-polarization multiplexing, and the throughput of the terminal device is less than the third throughput threshold (that is, the twenty-eighth condition is met), the terminal device can determine that the left circular polarization mode is the fourth polarization mode. The terminal device can further obtain the second service requirement time of the terminal device. Assuming that the second service requirement time is 10 s, the terminal device can determine sixth indication information according to the second service requirement time, the sixth indication information being used to indicate that the polarization mode expected by the terminal device is the left circular polarization mode, and the sixth indication information being further used to indicate that the duration during which the terminal device is expected to work in the left circular polarization mode is 10 s.

[0617] In this way, after the duration indicated by the sixth indication information expires, the terminal device can return to cross-polarization multiplexing from single polarization, so as to automatically wake up cross-polarization multiplexing when the second service requirement time of the terminal device ends, and improve the throughput. Moreover, the network device does not need to indicate the terminal device to return to the previous polarization mode through an indication signaling, signaling overhead can be saved, and the network device can avoid waiting for feedback of the terminal device to the indication signaling for a long time, and the scheduling speed of the network device can be accelerated.

[0618] In the embodiments of the present application, in the case that the sixth indication information is further used to indicate the duration of the fourth polarization mode, the network device can display an explicit response or an implicit response to the sixth indication information when receiving the sixth indication information. The following will be introduced respectively.

[0619] The explicit response is that the network device sends response information (such as an acknowledgement (ACK) or a negative acknowledgement (NACK)) to the terminal device, indicating that the sixth indication information is received.

[0620] The implicit response is that the network device communicates with the terminal device by using the fourth polarization mode indicated by the sixth indication information when receiving the sixth indication information.

[0621] In the embodiment of the present application, in the case of displaying a response, the start time of the duration of the fourth polarization mode is the time when the network device sends the response information to the terminal device.

[0622] In the case of implicit response, for downlink, if the terminal device receives the data packet from the network device in the fourth polarization mode, it is considered that the network device has made an implicit response, and the start time of the duration of the fourth polarization mode is the reception time of the first data packet from the network device in the fourth polarization mode. For uplink, the terminal device sends a data packet (denoted as uplink data packet) to the network device in the fourth polarization mode, and if the terminal device receives response information (such as ACK or NACK) from the network device in response to the uplink data packet, it is considered that the network device has made an implicit response, and the start time of the duration of the fourth polarization mode is the sending time of the uplink data packet corresponding to the response information from the network device in response to the uplink data packet.

[0623] In the embodiment of the present application, the sixth indication information can be carried in any one of RRC signaling, MAC CE, CSI-RS, and uplink control information (UCI).

[0624] Figure 15 In the embodiment of the present application, the terminal device can apply to the network device for adjusting the polarization mode, so that the polarization mode of the terminal device can be flexibly adjusted, and the terminal device can work in a better polarization mode, thereby improving the spectral efficiency of the polarization mode of the terminal device.

[0625] In the embodiment of the present application, the communication method shown in the above Figure 6 , Figure 10~Figure 12 , Figure 14 may be implemented independently, or can be implemented in combination, and the present application is not limited in this regard.

[0626] It should be noted that the first polarization indication information to the fifth polarization indication information can be implemented in the same field or in different fields, and the present application is not limited in this regard.

[0627] The above Figure 6~Figure 15 detailed description of the communication method provided by the embodiment of the present application. The following Figure 16 detailed description of the communication device for executing the communication method provided by the embodiment of the present application.

[0628] As Figure 16As shown, the embodiment of the present application provides a communication device 1600. The communication device 1600 can be a terminal or a network device, or a device in a terminal device or a network device, or a device capable of matching with a terminal device or a network device. In a possible implementation, the communication device 1600 can include a module or unit corresponding to each of the methods / operations / steps / actions performed by the first communication device or the second communication device in the above method embodiments, which can be a hardware circuit, or software, or a combination of hardware circuit and software. In a possible implementation, the communication device 1600 includes a processing module 1601 and a transceiver module 1602. For ease of illustration, Figure 16 Only the main components of the communication device are shown.

[0629] In some embodiments, the communication device 1600 can be applied to the communication system shown in Figure 3 , perform the functions of the network device in the communication method shown in Figure 6 , Figure 10~Figure 12 , Figure 13 , Figure 15

[0630] The processing module 1601 is configured to determine first indication information. The first indication information is carried in terminal-level information, and is used to indicate a first polarization mode of the first communication device, the first polarization mode including any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is configured to send the first indication information.

[0631] In some possible designs, the processing module 1601 is further configured to determine second indication information. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is further configured to send the second indication information.

[0632] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a first state, and the first state can include a connected state or an inactive state. The second indication information is carried in terminal-level information.

[0633] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a second state, and the second state can include an inactive state or an idle state. The second indication information is carried in cell-level information. Optionally, the cell-level information can be a SIB.

[0634] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of SSBs and a plurality of polarization modes.​

[0635] In a possible implementation, the first indication information is further used to indicate a time duration of the first polarization mode.

[0636] In a possible implementation, the first indication information is determined according to one or more of the following: a polarization mode supported by the first communication device, a CSI of a channel of a different polarization mode measured by the first communication device, a traffic demand of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and a crosstalk condition between orthogonal polarization channels.

[0637] In a possible implementation, the terminal-level information can be RRC signaling.

[0638] Optionally, the terminal-level information can also be any one of a MAC CE, a CSI-RS, a DCI, and the like.

[0639] In a possible implementation, the first indication information can be one or more of a carrier frequency, a RE, one or more of a carrier frequency, and a resource unit of a CSI-RS, which are used to indicate the first polarization mode.

[0640] In a possible implementation, the processing module 1601 is further configured to determine third indication information, where the third indication information is used to indicate a polarization mode of a neighboring beam of a beam in which the first communication device is located, and the polarization mode of the neighboring beam can include one or more of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is further configured to send the third indication information.

[0641] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource.

[0642] In some other embodiments, the communication device 1600 can be applicable to Figure 3 execute the functions of a terminal device in the communication method shown in Figure 6 , Figure 10~Figure 12 , Figure 13 , Figure 15 .

[0643] The transceiver module 1602 is configured to receive first indication information of a second communication device, where the first indication information is used to indicate a first polarization mode of the first communication device, the first polarization mode includes any one of a left-hand circular polarization, a right-hand circular polarization, a linear polarization, or cross-polarization multiplexing, and the first indication information is carried in terminal-level information. The processing module 1601 is configured to communicate with the second communication device based on the first polarization mode.

[0644] In a possible implementation, the transceiver 1602 is further configured to receive second indication information of the second communication device. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0645] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the first state is located, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information.

[0646] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the second state is located, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information. Optionally, the cell-level information can be a SIB.

[0647] In a possible implementation, the first indication information can include a mapping relationship between indexes of a plurality of SSBs and a plurality of polarization modes.

[0648] In a possible implementation, the first indication information is further used to indicate a duration of the first polarization mode.

[0649] In a possible implementation, the first indication information is determined according to one or more of a polarization mode supported by the first communication device, channel state information of channels of different polarization modes measured by the first communication device, a service requirement of the first communication device, an expected polarization mode of the first communication device, a weather condition between the first communication device and the second communication device, and a crosstalk condition between orthogonal polarization channels.

[0650] In a possible implementation, the terminal-level information can be RRC signaling.

[0651] Optionally, the terminal-level information can also be any one of MAC CE, CSI-RS, DCI, and the like.

[0652] In a possible implementation, the transceiver 1602 is further configured to receive third indication information of the second communication device. The third indication information is used to indicate a polarization mode of a neighboring beam of a beam where the first communication device is located, and the polarization mode of the neighboring beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0653] In a possible implementation, the first indication information is used to indicate a first polarization mode of a first resource of the first communication device, and the first resource includes a time-frequency domain resource.

[0654] In some embodiments, the communication device 1600 can be adapted to Figure 3 In the communication system shown in FIG. 1, the network device performs the functions of Figure 6 , Figure 10~Figure 12 , Figure 13 , Figure 15 In the communication method shown in FIG. 1, the network device performs the functions of

[0655] The processing module 1601 is configured to determine fourth indication information. The fourth indication information is used to indicate a second polarization mode of the first beam. The second polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is configured to transmit the fourth indication information.

[0656] In a possible implementation, the fourth indication information includes an index of an SSB, and the index of the SSB corresponds to the second polarization mode. Alternatively, the fourth indication information includes a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0657] In a possible implementation, the transceiver module 1602 is further configured to transmit a first mapping relationship. The first mapping relationship includes a mapping relationship between an index of at least one SSB and at least one polarization mode. Alternatively, the first mapping relationship includes a mapping relationship between a time-frequency location of at least one CSI-RS and at least one polarization mode.

[0658] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0659] In a possible implementation, the processing module 1601 is further configured to determine second indication information. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located. The polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is further configured to transmit the second indication information.

[0660] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a first state. The first state can include a connected state or an inactive state. The second indication information is carried in terminal-level information.

[0661] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device is located in a second state. The second state can include an inactive state or an idle state. The second indication information is carried in cell-level information.

[0662] In a possible implementation, the fourth indication information is further used to indicate a duration of the second polarization mode.

[0663] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, expected polarization modes of all the first communication devices in the first beam, weather conditions in the coverage of the first beam, and crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0664] In a possible implementation, the processing module 1601 is further configured to determine third indication information. The third indication information is used to indicate polarization modes of neighboring beams of the beam where the first communication device is located, and the polarization modes of the neighboring beams can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module 1602 is further configured to send the third indication information.

[0665] In some other embodiments, the communication device 1600 can be applicable to Figure 3 perform the functions of a terminal device in the communication method shown in Figure 6 , Figure 10~Figure 12 , Figure 13 , Figure 15 .

[0666] The transceiver module 1602 is configured to receive fourth indication information of a second communication device. The fourth indication information is used to indicate a second polarization mode of the first beam, and the second polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The processing module 1601 is configured to communicate with the second communication device based on the second polarization mode.

[0667] In a possible implementation, the fourth indication information includes an index of an SSB, and the index of the SSB corresponds to the second polarization mode; or the fourth indication information includes a time-frequency location of a CSI-RS, and the time-frequency location of the CSI-RS corresponds to the second polarization mode.

[0668] In a possible implementation, the transceiver module 1602 is further configured to receive second indication information of the second communication device. The second indication information is used to indicate polarization modes of neighboring cells of a cell where the first communication device is located, and the polarization modes of the neighboring cells can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0669] In a possible implementation, the fourth indication information is carried in any one of RRC, DCI, or MAC CE.

[0670] In a possible implementation, the transceiver 1602 is further configured to receive second indication information of the second communication device. The second indication information is used to indicate a polarization mode of a neighboring cell of a cell where the first communication device is located, and the polarization mode of the neighboring cell can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0671] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the first state is located, the first state can include a connected state or an inactive state, and the second indication information is carried in terminal-level information.

[0672] Optionally, the second indication information is further used to indicate the polarization mode of the neighboring cell of the cell where the first communication device in the second state is located, the second state can include an inactive state or an idle state, and the second indication information is carried in cell-level information.

[0673] In a possible implementation, the fourth indication information is further used to indicate a duration of the second polarization mode.

[0674] In a possible implementation, the fourth indication information is determined according to one or more of the following: polarization modes supported by all the first communication devices in the first beam, channel state information of channels of different polarization modes measured by all the first communication devices in the first beam, traffic demands of all the first communication devices in the first beam, polarization modes expected by all the first communication devices in the first beam, weather conditions in a coverage range of the first beam, and crosstalk conditions between all the orthogonal polarization channels in the first beam.

[0675] In a possible implementation, the transceiver 1602 is further configured to receive third indication information. The third indication information is used to indicate a polarization mode of a neighboring beam of a beam where the first communication device is located, and the polarization mode of the neighboring beam can include one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

[0676] Optionally, the transceiver 1602 can include a receiving module and a sending module (not shown in the figure). The sending module is configured to implement the sending function of the communication device 1600, and the receiving module is configured to implement the receiving function of the communication device 1600. Figure 6

[0677] Optionally, the communication device 1600 can further include a storage module (not shown in the figure) that stores a program or instructions. When the processing module 1601 executes the program or instructions, the communication device 1600 can perform Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 ​​​​​The functions of the terminal device or the network device in the communication method shown in any of

[0678] It should be understood that the processing module 1601 involved in the communication apparatus 1600 can be implemented by a processor or a processor-related circuit component, and can be a processor or a processing unit. The transceiver module 1602 can be implemented by a transceiver or a transceiver-related circuit component, and can be a transceiver or a transceiving unit.

[0679] It should be noted that the communication apparatus 1600 can be a terminal device or a network device, or a chip (system) or other components or assemblies arranged in the terminal device or the network device, or an apparatus containing the terminal device or the network device, and the present application does not limit the same. The terminal device is configured to perform the communication method described in any of Figure 13 、 Figure 15 、 Figure 6 、 Figure 10~Figure 12 The network device is configured to perform the communication method described in any of Figure 13 、 Figure 15 、 Figure 6 、 Figure 10~Figure 12 .

[0680] In addition, the technical effects of the communication apparatus 1600 can refer to the technical effects of the communication method shown in any of Figure 13 、 Figure 15 、 Figure 6 、 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10~Figure 12 Figure 13 Figure 15 Figure 6 Figure 10 , and details are not repeated here.

[0681] If the communication apparatus 1600 provided by the embodiments of the present application is a chip, the transceiver module 1602 in the communication apparatus 1600 can correspond to the input and output of the chip, for example, the receiving module in the transceiver module 1602 corresponds to the input of the chip, and the sending module in the transceiver module 1602 corresponds to the output of the chip, and the present application does not limit the same.

[0682] The embodiments of the present application also provide a chip system, comprising: a processor coupled with a memory, the memory being configured to store programs or instructions, when the programs or instructions are executed by the processor, the chip system implements the method in any of the above method embodiments.

[0683] Optionally, the processor in the chip system can be one or more. The processor can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor, which implements by reading software codes stored in the memory.

[0684] Optionally, the memory in the chip system can also be one or more. The memory can be integrated with the processor, or can be arranged separately from the processor, and the application does not limit. For example, the memory can be a non-transient processor, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be arranged separately on different chips, and the application does not limit the type of memory and the arrangement of the memory and the processor.

[0685] For example, the chip system can be a field programmable gate array (FPGA), can be an ASIC, can be a system on chip (SoC), can be a CPU, can be a network processor (NP), can be a digital signal processor (DSP), can be a micro controller unit (MCU), can be a programmable logic device (PLD), or other integrated chips.

[0686] The embodiment of the application provides a communication system. The communication system comprises one or more terminal devices and one or more network devices. The terminal device and the network device can perform the method embodiments described above in combination, and the specific implementation process can refer to the method embodiments described above, and will not be described here.

[0687] The application further provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer readable storage medium is executed by a computer to realize the functions of any of the method embodiments described above.

[0688] The application further provides a computer program product, and the computer program product is executed by a computer to realize the functions of any of the method embodiments described above.

[0689] It should be understood that the processor in the embodiment of the application can be a CPU, and the processor can also be other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or the processor can also be any conventional processor, etc.

[0690] It should also be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an EEPROM or a flash memory. The volatile memory can be a RAM used as an external cache. By way of example but not limitation, many forms of RAM can be used, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM) and direct rambus RAM (DR RAM).

[0691] The above embodiments can be implemented in whole or in part by software, hardware (such as a circuit), firmware or any combination thereof. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. containing one or more available medium collections. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD) or a semiconductor medium. The semiconductor medium can be a solid state disk.

[0692] The terms "first", "second" and "third" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, and are not used to limit a specific order.

[0693] It should be understood that the term "and / or" in this document is merely used to describe associated objects, and can represent the three conditions of "A", "B", and "A and / or B", which can mean that the three conditions of "A alone", "B alone", and "A and B together" can exist. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects, but can also represent an "and / or" relationship. The specific meaning can be understood according to the context before and after.

[0694] In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of the items, including any combination of single or multiple items. For example, at least one of a, b, and c can mean a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0695] It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0696] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0697] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the above-mentioned system, device and unit can be referred to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0698] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be realized by other ways. For example, the above-described device embodiments are only schematic, and the division of the units is only a logical function division, and actual implementation can have another division manner, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed objects can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0699] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0700] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0701] The functions, if realized in the form of software functional units and sold or used as independent products, can be stored in a computer readable storage medium. According to such understanding, the technical scheme of the present application or the part of the technical scheme which essentially contributes to the prior art or the part of the technical scheme can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various storage media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk.

[0702] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method applied to a first communication device, characterized in that, The method comprises: receiving radio resource control resume signaling of a second communication device, the radio resource control resume signaling comprising second indication information; the second indication information is used to indicate a polarization mode of a neighbor cell of a cell where the first communication device in an inactive state, the polarization mode of the neighbor cell comprising one or more of left-hand circular polarization, right-hand circular polarization, linear polarization or cross-polarization multiplexing; performing signal measurement on the neighbor cell based on the second indication information.

2. The method of claim 1, wherein, The method further comprises: receiving fifth indication information of the second communication device; the fifth indication information is used to indicate a third polarization mode of a first cell of the second communication device, the third polarization mode comprising any one of left-hand circular polarization, right-hand circular polarization, linear polarization or cross-polarization multiplexing; communicating with the second communication device based on the third polarization mode.

3. The method of claim 2, wherein, The method further comprises: sending sixth indication information to the second communication device; the sixth indication information is used to indicate a fourth polarization mode expected by the first communication device, the fourth polarization mode comprising any one of left-hand circular polarization, right-hand circular polarization, linear polarization or cross-polarization multiplexing.

4. The method according to any one of claims 1-3, characterized in that, The second indication information is carried in a MeasObjectNR field in the radio resource control resume.

5. The method according to any one of claims 1-3, characterized in that, The polarization mode of the neighbor cell comprises an uplink polarization mode of the neighbor cell and / or a downlink polarization mode of the neighbor cell.

6. The method of claim 5, wherein, The uplink polarization mode of the neighbor cell comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

7. The method of claim 5, wherein, The downlink polarization mode of the neighbor cell comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

8. The method of claim 2, wherein, The third polarization mode comprises a third uplink polarization mode and / or a third downlink polarization mode.

9. The method of claim 8, wherein, The third uplink polarization mode comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

10. The method according to claim 8 or 9, characterized in that, The third downlink polarization mode comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

11. The method according to claim 8 or 9, characterized in that, The fifth indication information is carried in a system broadcast message.

12. A communication method applied to a second communication device, comprising: The method comprises: determining radio resource control resume signaling, the radio resource control resume signaling comprising second indication information; The second indication information is used for indicating a polarization mode of a neighbor cell of a cell where the first communication device is located in an inactive state, and the polarization mode of the neighbor cell comprises one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The radio resource control recovery signaling is sent.

13. The method of claim 12, wherein, The method further comprises: fifth indication information is determined, and the fifth indication information is used for indicating a third polarization mode of a first cell of the second communication device, and the third polarization mode comprises any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The fifth indication information is sent.

14. The method of claim 13, wherein, The method further comprises: sixth indication information of the first communication device is received, and the sixth indication information is used for indicating a fourth polarization mode expected by the first communication device, and the fourth polarization mode comprises any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

15. The method according to any one of claims 12-14, characterized in that, The second indication information is carried in a MeasObjectNR field in the radio resource control recovery.

16. The method according to any one of claims 12-14, characterized by, The polarization mode of the neighbor cell comprises an uplink polarization mode of the neighbor cell and / or a downlink polarization mode of the neighbor cell.

17. The method of claim 16, wherein, The uplink polarization mode of the neighbor cell comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, or uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

18. The method of claim 16, wherein, The downlink polarization mode of the neighbor cell comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, or downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

19. The method of claim 13, wherein, The third polarization mode comprises a third uplink polarization mode and / or a third downlink polarization mode.

20. The method of claim 19, wherein, The third uplink polarization mode comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, or uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

21. The method of claim 19 or 20, wherein, The third downlink polarization mode comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, or downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

22. The method of claim 19 or 20, wherein, The fifth indication information is carried in a system broadcast message.

23. A communications device, characterized by Comprise: a transceiver module and a processing module, wherein The transceiver module is configured to receive wireless resource control recovery signaling of the second communication device, the wireless resource control recovery signaling comprising second indication information; the second indication information is used to indicate a polarization mode of a neighbor cell of a cell where the communication device in an inactive state, and the polarization mode of the neighbor cell comprises one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The processing module is configured to perform signal measurement on the neighbor cell based on the second indication information.

24. The apparatus of claim 23, wherein The transceiver module is further configured to receive fifth indication information of the second communication device; the fifth indication information is used to indicate a third polarization mode of a first cell of the second communication device, and the third polarization mode comprises any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing. The transceiver module is further configured to communicate with the second communication device based on the third polarization mode.

25. The apparatus of claim 24, wherein The transceiver module is further configured to send sixth indication information to the second communication device; the sixth indication information is used to indicate a fourth polarization mode expected by the communication device, and the fourth polarization mode comprises any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarization multiplexing.

26. The apparatus of any one of claims 23-25, wherein, The second indication information is carried in a MeasObjectNR field in the wireless resource control recovery.

27. The apparatus of any one of claims 23-25, wherein, The polarization mode of the neighbor cell comprises an uplink polarization mode of the neighbor cell and / or a downlink polarization mode of the neighbor cell.

28. The apparatus of claim 27, wherein, The uplink polarization mode of the neighbor cell comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, or uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

29. The apparatus of claim 27, wherein, The downlink polarization mode of the neighbor cell comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, or downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

30. The apparatus of claim 24, wherein, The third polarization mode comprises a third uplink polarization mode and / or a third downlink polarization mode.

31. The apparatus of claim 30, wherein, The third uplink polarization mode comprises any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarization multiplexing, uplink ±45° cross-polarization multiplexing, or uplink left-hand-right-hand circular polarization cross-polarization multiplexing.

32. The apparatus of claim 30 or 31, wherein, The third downlink polarization mode comprises any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarization multiplexing, downlink ±45° cross-polarization multiplexing, or downlink left-hand-right-hand circular polarization cross-polarization multiplexing.

33. The apparatus of claim 30 or 31, wherein, The fifth indication information is carried in a system broadcast message.

34. A communications device, characterized by The transceiver module and the processing module are included, The processing module is configured to determine radio resource control (RRC) resume signaling, and the RRC resume signaling includes second indication information, wherein the second indication information is used to indicate a polarization mode of a neighbor cell of a cell where the first communication device is located in an inactive state, and the polarization mode of the neighbor cell includes one or more of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarized multiplexing. The transceiver module is configured to send the RRC resume signaling.

35. The apparatus of claim 34, wherein The processing module is further configured to determine fifth indication information. The fifth indication information is used to indicate a third polarization mode of a first cell of the communication device, and the third polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarized multiplexing. The transceiver module is further configured to send the fifth indication information.

36. The apparatus of claim 35, wherein The transceiver module is further configured to receive sixth indication information of the first communication device. The sixth indication information is used to indicate a fourth polarization mode expected by the first communication device, and the fourth polarization mode includes any one of left-hand circular polarization, right-hand circular polarization, linear polarization, or cross-polarized multiplexing.

37. The device of any one of claims 34-36, wherein, The second indication information is carried in a MeasObjectNR field in the RRC resume.

38. The device of any one of claims 34-36, wherein, The polarization mode of the neighbor cell includes an uplink polarization mode of the neighbor cell and / or a downlink polarization mode of the neighbor cell.

39. The device of claim 38, wherein, The uplink polarization mode of the neighbor cell includes any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarized multiplexing, uplink ±45° cross-polarized multiplexing, or uplink left-hand-right-hand circular polarization cross-polarized multiplexing.

40. The device of claim 38, wherein, The downlink polarization mode of the neighbor cell includes any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarized multiplexing, downlink ±45° cross-polarized multiplexing, or downlink left-hand-right-hand circular polarization cross-polarized multiplexing.

41. The device of claim 35, wherein, The third polarization mode includes a third uplink polarization mode and / or a third downlink polarization mode.

42. The device of claim 41, wherein, The third uplink polarization mode includes any one of uplink left-hand circular polarization, uplink right-hand circular polarization, uplink horizontal polarization, uplink vertical polarization, uplink +45° polarization, uplink -45° polarization, uplink horizontal-vertical cross-polarized multiplexing, uplink ±45° cross-polarized multiplexing, or uplink left-hand-right-hand circular polarization cross-polarized multiplexing.

43. The device of claim 41 or 42, wherein, The third downlink polarization mode includes any one of downlink left-hand circular polarization, downlink right-hand circular polarization, downlink horizontal polarization, downlink vertical polarization, downlink +45° polarization, downlink -45° polarization, downlink horizontal-vertical cross-polarized multiplexing, downlink ±45° cross-polarized multiplexing, or downlink left-hand-right-hand circular polarization cross-polarized multiplexing.

44. The device of claim 41 or 42, wherein, The fifth indication information is carried in a system broadcast message.

45. A communications device, characterized by Comprising: and a processor coupled to the memory, the processor configured to execute a computer program or instructions in the memory, causing the communication device to perform the method of any of claims 1-11; or causing the communication device to perform the method of any of claims 12-22.

46. A computer-readable storage medium, characterized in that, Comprising computer program or instructions which, when run on a computer, cause the method of any of claims 1-11 to be performed; or cause the method of any of claims 12-22 to be performed.

47. A computer program product comprising instructions, wherein: Computer program or instructions which, when run on a computer, cause the method of any of claims 1-11 to be performed; or cause the method of any of claims 12-22 to be performed.

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