CN116193528B

CN116193528B - Millimeter wave communication method, and related storage medium and program product

Info

Publication number: CN116193528B
Application number: CN202310080528.3A
Authority: CN
Inventors: 申俊圣; 曾伯羽; 李冬
Original assignee: Shenzhen Mor Huanyu Communication Technology Co ltd
Current assignee: Shenzhen Mor Huanyu Communication Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-09-05
Anticipated expiration: 2042-11-11
Also published as: CN116193528A; CN115460669B; CN115460669A

Abstract

Embodiments of the present application provide millimeter wave communication methods and related storage media and program products. The millimeter wave communication system may include: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster; the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster; the first millimeter wave base station is a main service base station or an auxiliary service base station of a third millimeter wave relay station cluster; when the first millimeter wave base station is a main service base station of the first user equipment, the first millimeter wave base station establishes a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment; the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first millimeter wave base station transmits a link use policy rule1 and a link use policy rule2 to the first user equipment.

Description

Millimeter wave communication method, and related storage medium and program product

Technical Field

The present application relates to the field of communications technologies, and in particular, to a millimeter wave communication method, and a related storage medium and program product.

Background

Electromagnetic waves in the frequency domain of 30-300GHz (with the wavelength of 1-10 mm) are generally called millimeter waves, and the millimeter waves are located in the wavelength range where the microwaves and the far infrared waves intersect, so that the electromagnetic waves have the characteristics of two wave spectrums. Wherein, compared with light waves, when the millimeter waves are transmitted by using an atmospheric window (frequency with certain attenuation of minimum value due to the resonance absorption of gas molecules when the millimeter waves and the sub-millimeter waves are transmitted in the atmosphere), the attenuation is small, and the influence of natural light and a heat radiation source is small.

Millimeter waves have a great deal of application in the fields of communication, radar, remote sensing, radio astronomy and the like. In order to improve the communication reliability of the millimeter wave system, the millimeter wave relay station is introduced into the millimeter wave system, but how to better play the role of the millimeter wave relay station, so that the transmission of the user plane data packet is more flexibly and reliably ensured, and the millimeter wave relay station is still the subject of long-term research in the industry.

Disclosure of Invention

The embodiment of the application provides a millimeter wave communication method, a related millimeter wave communication system, a related storage medium and a program product, which are beneficial to improving the communication quality enhancement function of a millimeter wave relay station and further beneficial to ensuring the transmission of user plane data packets more flexibly and reliably.

A first aspect of an embodiment of the present application provides a millimeter wave communication method applied to a millimeter wave communication system including: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster.

Wherein the first millimeter wave relay station cluster and the third millimeter wave relay station cluster respectively comprise at least 2 millimeter wave relay stations; the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster; the first millimeter wave base station can be switched from the main service base station of the third millimeter wave relay station cluster to the auxiliary service base station of the third millimeter wave relay station cluster, and the first millimeter wave base station can also be switched from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster.

Furthermore, the millimeter wave communication system further includes: a second millimeter wave base station and a second millimeter wave relay station cluster; the second millimeter wave relay station cluster comprises at least 2 millimeter wave relay stations; the second millimeter wave base station can be switched from the main service base station of the third millimeter wave relay station cluster to the auxiliary service base station of the third millimeter wave relay station cluster, and the second millimeter wave base station can also be switched from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster.

When the second millimeter wave base station is the main service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is the auxiliary service base station of the third millimeter wave relay station cluster, and when the second millimeter wave base station is the auxiliary service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is the main service base station of the third millimeter wave relay station cluster.

Wherein the method may comprise:

when a first millimeter wave base station is a main service base station of first user equipment, the first millimeter wave base station establishes a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment; wherein the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through a relay station.

And the first millimeter wave base station sends a link use strategy rule1 and a link use strategy rule2 to the first user equipment.

When the first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a first activation instruction to the first user equipment, wherein the first activation instruction is used for activating a link use strategy rule1 and deactivating the link use strategy rule2; when the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an active state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link.

When the first millimeter wave base station is switched to a main service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a second activation instruction to the first user equipment, wherein the second activation instruction is used for activating a link use strategy rule2 and deactivating the link use strategy rule1; when the first user equipment generates a second user plane data packet, the first user equipment selects a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on the link use policy rule2 in an active state, and transmits the second user plane data packet to the first millimeter wave base station by using the selected link.

It will be appreciated that the link usage policy rule1 and the link usage policy rule2 cannot be in an active state at the same time, when the link usage policy rule1 is in an active state, the link usage policy rule2 will be in a deactivated state, and when the link usage policy rule2 is in an active state, the link usage policy rule1 will be in a deactivated state.

In some possible embodiments, when the first user plane packet is a user plane packet of a high priority service, the link selected from the first direct link and the relay link RL11 for transmitting the first user plane packet is the first direct link and the relay link RL11 based on the link usage policy rule1 in the active state. When the first user plane data packet is a user plane data packet of the medium priority service, the link selected from the first direct link and the relay link RL11 for transmitting the first user plane data packet is the first direct link based on the link usage policy rule1 in the active state. When the first user plane data packet is a user plane data packet of a low priority service, a link for transmitting the first user plane data packet, which is selected from a first direct link and a relay link RL11 based on a link use policy rule1 in an active state, is the relay link RL11.

It will be appreciated that the priority levels of the high priority service, the medium priority service and the low priority service mentioned in the embodiments of the present application are relative concepts, the priority level of the high priority service being higher than that of the medium priority service, and the priority level of the medium priority service being higher than that of the low priority service. In a practical scenario, the priorities of different services may be divided as required.

In some possible embodiments, when the second user plane packet is a user plane packet of a high priority service, a link for transmitting the second user plane packet is selected from the first direct link, the relay link RL11 and the relay link RL13 as the first direct link, the relay link RL11 and the relay link RL13 based on the link usage policy rule2 in an active state.

When the second user plane data packet is a user plane data packet of a medium priority service, selecting a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on a link use policy rule2 in an active state, wherein the link comprises the first direct link, and further comprises the relay link RL11 or the relay link RL13.

When the second user plane data packet is a user plane data packet of a low priority service, a link for transmitting the second user plane data packet is selected from a first direct link, a relay link RL11 and a relay link RL13 to be the first direct link, the relay link RL11 or the relay link RL13 based on a link use policy rule2 in an active state.

In some possible embodiments, when the second user plane packet is a user plane packet of a low priority service and the link communication quality levels of the first direct link, the relay link RL11 and the relay link RL13 are different from each other, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane packet may be the link with the highest link communication quality level among the first direct link, the relay link RL11 and the relay link RL13 based on the link usage policy rule2 in the active state.

When the second user plane data packet is a user plane data packet of a low priority service and the link communication quality levels of the first direct link, the relay link RL11 and the relay link RL13 are identical, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane data packet is the relay link RL13 based on the link use policy rule2 in the active state.

When the second user plane data packet is a user plane data packet of a low priority service, and the link communication quality levels of the relay link RL11 and the relay link RL13 are the same, and the link communication quality level of the first direct link is lower than that of the relay link RL11, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane data packet is the relay link RL13 based on the link use policy rule2 in the active state.

When the second user plane data packet is a user plane data packet of a low priority service, and the link communication quality levels of the relay link RL11 and the relay link RL13 are the same, and the link communication quality level of the first direct link is higher than that of the relay link RL11, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane data packet is the first direct link based on the link use policy rule2 in the active state.

In some possible implementations, when the second mmwave base station is a primary serving base station of a first user device (e.g., the primary serving base station of the first user device is handed over from the first mmwave base station to the second mmwave base station), the second mmwave base station establishes a second direct link, a relay link RL22, and a relay link RL23 between the second mmwave base station and the first user device; the relay link RL22 passes through a second relay station in the second millimeter wave relay station cluster; the relay link RL23 passes through a fourth relay station in the third millimeter wave relay station cluster; the second direct link does not pass through a relay station.

And the second millimeter wave base station sends a link use strategy rule3 and a link use strategy rule4 to the first user equipment.

When the second millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster and the first millimeter wave base station is switched to a main service base station of the third millimeter wave relay station cluster, the second millimeter wave base station sends a third activation instruction to the first user equipment, wherein the third activation instruction is used for activating a link use strategy rule3 and deactivating the link use strategy rule4; when the first user equipment generates the third user plane data packet, the first user equipment selects a link for transmitting the third user plane data packet from the second direct link and the relay link RL22 based on the link use policy rule3 in the active state, and transmits the third user plane data packet to the second millimeter wave base station by using the selected link.

When the second millimeter wave base station is switched to a main service base station of a third millimeter wave relay station cluster and the first millimeter wave base station is switched to an auxiliary service base station of the third millimeter wave relay station cluster, the second millimeter wave base station sends a fourth activation instruction to the first user equipment, wherein the fourth activation instruction is used for activating a link use strategy rule4 and deactivating the link use strategy rule3; when the first ue generates a fourth user plane packet, the first ue selects a link for transmitting the fourth user plane packet from among the second direct link, the relay link RL22 and the relay link RL23 based on the link usage policy rule4 in the active state, and transmits the fourth user plane packet to the second mmwave base station using the selected link.

In some possible embodiments, when the third user plane packet is a user plane packet of a high priority service, the link selected from the second direct link and the relay link RL22 for transmitting the third user plane packet is the second direct link and the relay link RL22 based on the link usage policy rule3 in the active state. When the third user plane data packet is a user plane data packet of the medium priority service, the link selected from the second direct link and the relay link RL22 for transmitting the third user plane data packet is the second direct link based on the link usage policy rule3 in the active state. When the third user plane data packet is a user plane data packet of a low priority service, a link for transmitting the third user plane data packet, which is selected from the second direct link and the relay link RL22 based on the link usage policy rule3 in an active state, is the relay link RL22.

In some possible embodiments, when the fourth user plane packet is a user plane packet of a high priority service, a link for transmitting the fourth user plane packet is selected from the second direct link, the relay link RL22 and the relay link RL23 as the second direct link, the relay link RL22 and the relay link RL23 based on the link usage policy rule4 in an active state.

When the fourth user plane data packet is a user plane data packet of a medium priority service, a link for transmitting the fourth user plane data packet is selected from a second direct link, a relay link RL22 and a relay link RL23 based on a link use policy rule4 in an active state, and the link further comprises the second direct link, the relay link RL22 or the relay link RL23.

And when the fourth user plane data packet is a user plane data packet of low priority service, selecting a link for transmitting the fourth user plane data packet from a second direct link, a relay link RL22 and a relay link RL23 as the second direct link or the relay link RL22 or the relay link RL23 based on a link use policy rule4 in an active state.

In some possible embodiments, when the fourth user plane packet is a user plane packet of a low priority service and the link communication quality levels of the second direct link, the relay link RL22 and the relay link RL23 are different from each other, the link selected from the second direct link, the relay link RL22 and the relay link RL23 for transmitting the fourth user plane packet may be the link with the highest link communication quality level among the second direct link, the relay link RL22 and the relay link RL23 based on the link usage policy rule4 in the active state.

When the fourth user plane data packet is a user plane data packet of a low priority service and the link communication quality levels of the second direct link, the relay link RL22 and the relay link RL23 are identical, the link selected from the second direct link, the relay link RL22 and the relay link RL23 for transmitting the fourth user plane data packet is the relay link RL23 based on the link usage policy rule4 in the active state.

When the fourth user plane data packet is a user plane data packet of a low priority service, and the link communication quality levels of the relay link RL22 and the relay link RL23 are the same, and the link communication quality level of the second direct link is lower than that of the relay link RL22, the link selected from the second direct link, the relay link RL22 and the relay link RL23 for transmitting the second user plane data packet is the relay link RL23 based on the link use policy rule4 in the active state.

When the fourth user plane data packet is a user plane data packet of a low priority service, and the link communication quality levels of the relay link RL22 and the relay link RL23 are the same, and the link communication quality level of the first direct link is higher than that of the relay link RL22, the link selected from the second direct link, the relay link RL22 and the relay link RL23 for transmitting the fourth user plane data packet is the second direct link based on the link use policy rule4 in the active state.

In some possible embodiments, the primary service base station and the secondary service base station of the millimeter-wave relay station (e.g., the third millimeter-wave relay station) in the third millimeter-wave relay station cluster can dynamically switch between the first millimeter-wave base station and the second millimeter-wave base station (e.g., the second millimeter-wave base station can be switched from the primary service base station of the third millimeter-wave relay station to the secondary service base station, and the first millimeter-wave base station can be switched from the primary service base station of the third millimeter-wave relay station to the secondary service base station, and the second millimeter-wave base station can be switched from the primary service base station of the third millimeter-wave relay station to the secondary service base station), then virtual base station n1 can be created inside the first millimeter-wave base station, virtual base station n2 can be created inside the second millimeter-wave base station, virtual base station n1 and virtual base station n2 have the same virtual identity, the same communication port and communication address (virtual base station n1 and virtual base station n2 are mutually sub-systems), the first millimeter-wave base station and the second millimeter-wave base station can be regarded as secondary service base station through the virtual relay station created inside, so that the first millimeter-wave link and the third millimeter-wave relay station can be easily established between the first millimeter-wave relay station and the third millimeter-wave relay station.

Specifically, for example, a relay link RL13 is established between the first millimeter wave base station and the first user equipment (the relay link RL13 passes through the third millimeter wave relay station), then the relay link RL13 includes a link segment RL13-U (a link segment between the third millimeter wave relay station and the user equipment) and a RL13-n1 (a link segment between the third millimeter wave relay station and the virtual base station n 1). A relay link RL23 is established between the second mmwave base station and the first user equipment (the relay link RL23 passes through the third mmwave relay station), and then the relay link RL23 includes a link segment RL23-U (a link segment between the third mmwave relay station and the user equipment) and a RL23-n2 (a link segment between the third mmwave relay station and the virtual base station n 2), and since the virtual base station n2 and the virtual base station n1 are separate from each other, the link segments RL23-n2 and RL13-n2 can be combined into one for the third mmwave relay station, that is, can be regarded as the same link segment.

In some possible embodiments, in a case that the second millimeter wave base station is an auxiliary service base station of the third millimeter wave relay station cluster and the first millimeter wave base station is a main service base station of the third millimeter wave relay station cluster, when a first condition is satisfied, the second millimeter wave base station may send a first test sequence to the third millimeter wave relay station cluster within a first test period, receive a first response sequence set corresponding to the first test sequence from the third millimeter wave relay station cluster, evaluate a link communication quality level Lq1 between the first millimeter wave base station and the third millimeter wave relay station cluster based on the first response sequence set, and switch the second millimeter wave base station from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster and switch the first millimeter wave base station from the main service base station of the third millimeter wave relay station cluster to the auxiliary service base station of the third millimeter wave relay station cluster if the link communication quality level Lq1 satisfies a second condition.

In some possible implementations, the second condition may be that the link communication quality level Lq2 is better than the link communication quality level Lq1. The link communication quality level Lq2 is a link communication quality level between the second millimeter wave base station and the third millimeter wave relay station cluster estimated based on a second response sequence set corresponding to a second test sequence; the first millimeter wave base station is further configured to instruct the second millimeter wave base station to send a first test sequence to the third millimeter wave relay station cluster in the first test period, and receive a second response sequence set corresponding to the second test sequence from the third millimeter wave relay station cluster, where the total duration of the first test period is not longer than 1 second.

Wherein the total duration of the first test period does not exceed 1 second. For example, the total duration of the first test period may be 1 second, 0.8 second, 0.5 second, 0.1 second, 0.01 second, or other duration.

It will be appreciated that transmission parameters such as bit error rate, response delay, etc. may be determined from the response sequence, based on which link communication quality for the respective link may be determined, and based on which link communication quality a corresponding link communication quality level may be determined.

It can be understood that the millimeter wave base station can use the average link communication quality of links between the millimeter wave base station and different millimeter wave relay stations in the millimeter wave relay station cluster as the link communication quality of the millimeter wave base station and the millimeter wave relay station cluster, so that the link communication quality grade of the millimeter wave base station and the millimeter wave relay station cluster can be obtained.

It will be appreciated that a higher link communication quality level indicates a better link communication quality, and a lower link communication quality level indicates a worse link communication quality. The link communication quality level may include: 3 ranks, 4 ranks, 5 ranks, 6 ranks, 7 ranks, or other greater number of ranks.

In some possible implementations, the first condition includes an average load level of the links of the first millimeter wave base station in an active state exceeding a first load level threshold and an average load level of the links of the second millimeter wave base station in an active state exceeding a second load level threshold. The first load level threshold is greater than the second load level threshold.

It will be appreciated that a higher load level indicates a closer to full load condition and a lower load level indicates a closer to empty load condition. The load class may include: empty load (load range such as [0, 5%)), sub-light load (load range such as [5%, 20%)), light load (load range such as [20%, 40%)), medium load (load range such as [40%, 60%)), sub-heavy load (load range such as [60%, 80%)), heavy load (load range such as [80%, 95%)) and full load (load range such as [95%,100% ]), and the like. Of course, the load levels are not limited to the above examples, and more or less may be used.

A second aspect of embodiments of the present application provides a millimeter-wave communication system that may include: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster;

wherein the first millimeter wave relay station cluster and the third millimeter wave relay station cluster respectively comprise at least 2 millimeter wave relay stations; the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster; the first millimeter wave base station is a main service base station or an auxiliary service base station of the third millimeter wave relay station cluster;

the first millimeter wave base station is used for establishing a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment under the condition that the first millimeter wave base station is a main service base station of the first user equipment; wherein the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through a relay station;

the first millimeter wave base station is further configured to send a link usage policy rule1 and a link usage policy rule2 to the first user equipment.

The first millimeter wave base station is further configured to send a first activation instruction to a first user equipment when the first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, where the first activation instruction is used to activate a link use policy rule1 and deactivate a link use policy rule2; when the first user equipment generates a first user plane data packet, the first user equipment is used for picking out a link used for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on a link use policy rule1 in an activated state, and transmitting the first user plane data packet to the first millimeter wave base station by using the selected link.

The first millimeter wave base station is further configured to send a second activation instruction to the first user equipment when the first millimeter wave base station is switched to a main serving base station of the third millimeter wave relay station cluster, where the second activation instruction is used to activate a link use policy rule2 and deactivate the link use policy rule1; when the first user equipment generates a second user plane data packet, the first user equipment is used for selecting a link for transmitting the second user plane data packet from the first direct link, the relay link RL11 and the relay link RL13 based on the link use policy rule2 in an activated state, and transmitting the second user plane data packet to the first millimeter wave base station by using the selected link.

In some possible embodiments, when the first user plane packet is a user plane packet of a high priority service, the link selected from the first direct link and the relay link RL11 for transmitting the first user plane packet is the first direct link and the relay link RL11 based on the link usage policy rule1 in the active state; when the first user plane data packet is a user plane data packet of a medium priority service, a link which is selected from a first direct link and a relay link RL11 and used for transmitting the first user plane data packet is a first direct link based on a link use policy rule1 in an active state; when the first user plane data packet is a user plane data packet of a low priority service, a link for transmitting the first user plane data packet, which is selected from the first direct link and the relay link RL11 based on the link usage policy rule1 in an active state, is the relay link RL11.

When the second user plane data packet is a user plane data packet of a medium priority service, a link for transmitting the second user plane data packet is selected from a first direct link, a relay link RL11 and a relay link RL13 based on a link use policy rule2 in an active state, and the link further comprises the first direct link, the relay link RL11 or the relay link RL13.

In some possible implementations, the millimeter wave communication system may further include: a second millimeter wave base station and a second millimeter wave relay station cluster; the second millimeter wave relay station cluster comprises at least 2 millimeter wave relay stations.

The second millimeter wave base station is used for establishing a second direct link, a relay link RL22 and a relay link RL23 between the second millimeter wave base station and the first user equipment when the second millimeter wave base station is a main service base station of the first user equipment; wherein the relay link RL22 passes through a second relay station in the second millimeter wave relay station cluster; the relay link RL23 passes through a fourth relay station in the third millimeter wave relay station cluster; the second direct link does not pass through a relay station.

The second millimeter wave base station is further configured to send a link usage policy rule3 and a link usage policy rule4 to the first user equipment.

The second millimeter wave base station is further configured to send a third activation instruction to the first user equipment when the second millimeter wave base station is switched to an auxiliary service base station of the third millimeter wave relay station cluster and the first millimeter wave base station is switched to a main service base station of the third millimeter wave relay station cluster, where the third activation instruction is used to activate a link usage policy rule3 and deactivate a link usage policy rule4; the first ue is configured to, when the first ue generates a third user plane packet, pick a link for transmitting the third user plane packet from the second direct link and the relay link RL22 based on the link usage policy rule3 in an active state, and transmit the third user plane packet to the second mmwave base station by using the selected link.

The second millimeter wave base station is further configured to, when the second millimeter wave base station is switched to a main serving base station of a third millimeter wave relay station cluster and the first millimeter wave base station is switched to an auxiliary serving base station of the third millimeter wave relay station cluster, send a fourth activation instruction to the first user equipment, where the fourth activation instruction is used to activate the link usage policy rule4 and deactivate the link usage policy rule3; the first ue is configured to, when the first ue generates a fourth user plane packet, select a link for transmitting the fourth user plane packet from among the second direct link, the relay link RL22 and the relay link RL23 based on the link usage policy rule4 in an active state, and transmit the fourth user plane packet to the second mmwave base station by using the selected link.

The third aspect of the embodiment of the present application also provides a computer readable storage medium storing a computer program, where the computer program can implement some or all of the steps of any one of the methods provided in the embodiments of the present application when executed by a computer device, for example, may perform some or all of the operations performed by the first millimeter wave base station or the second millimeter wave base station.

The fourth aspect of the embodiment of the present application also provides a computer program product, where program instructions in the computer program product, when executed by a computer device, can implement some or all of the steps of any one of the methods provided in the embodiments of the present application, for example, may perform some or all of the operations performed by the first millimeter wave base station or the second millimeter wave base station.

It can be seen that the embodiment of the present application provides an expandable millimeter wave system architecture, where the first millimeter wave base station can be switched from the main serving base station of the third millimeter wave relay station cluster to the auxiliary serving base station of the third millimeter wave relay station cluster, and also can be switched from the auxiliary serving base station of the third millimeter wave relay station cluster to the main serving base station of the third millimeter wave relay station cluster. When the first millimeter wave base station is a main service base station of the first user equipment, the first millimeter wave base station establishes a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment; wherein the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through the relay station. The first millimeter wave base station transmits a link use policy rule1 and a link use policy rule2 to the first user equipment. When the first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, the first millimeter wave base station can activate a link use strategy rule1 and deactivate a link use strategy rule2 through a first activation instruction; when the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an active state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link. When the first millimeter wave base station is switched to a main service base station of a third millimeter wave relay station cluster, the first millimeter wave base station can be used for activating a link use strategy rule2 and deactivating the link use strategy rule1 through a second activation instruction; when the first user equipment generates a second user plane data packet, the first user equipment selects a link for transmitting the second user plane data packet from the first direct link, the relay link RL11 and the relay link RL13 based on the link use policy rule2 in an activated state, and transmits the second user plane data packet to the first millimeter wave base station by using the selected link. The mechanism enables the first millimeter wave base station to flexibly and reliably control the transmission link of the user plane data packet through the activation and deactivation of the link use strategy, thereby being beneficial to improving the enhancement effect of the millimeter wave relay station on the communication quality and the use controllability of the millimeter wave relay station and guaranteeing the transmission of the user plane data packet more flexibly and reliably.

Drawings

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

Fig. 1 is a schematic diagram of a network architecture of a millimeter wave communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a millimeter wave communication method according to an embodiment of the present application;

fig. 3 is a schematic flow chart of another millimeter wave communication method according to an embodiment of the present application;

fig. 4 is a schematic flow chart of another millimeter wave communication method according to an embodiment of the present application.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution of an embodiment of the present application will be clearly described below with reference to the accompanying drawings in the embodiment of the present application, and it is apparent that the described embodiment is a part of the embodiment of the present application, but not all the embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden, based on some embodiments of the present application are intended to be within the scope of the present application.

The terms first, second, third and the like in the description, in the claims and in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, fig. 1 is a schematic network structure diagram of a millimeter wave communication system according to an example of the present application, where the millimeter wave communication system includes a core network, a radio access network, and user equipment. The millimeter wave communication system may be, for example, a Long Term Evolution (LTE) system, a 5G communication system (e.g., a New Radio (NR) system), a converged communication system in which a plurality of communication technologies are converged (e.g., a communication system in which LTE technology and NR technology are converged), or a communication system in which subsequent evolution is performed.

The wireless access network includes a plurality of millimeter wave relay station clusters (including a first millimeter wave relay station cluster, a second millimeter wave relay station cluster, a third millimeter wave relay station cluster, and other millimeter wave relay station clusters, as a matter of course, may also be included). The radio access network also includes a plurality of millimeter wave base stations (e.g., including a first millimeter wave base station and a second millimeter wave base station, although other millimeter wave base stations may also be included).

Wherein one millimeter wave relay station cluster may include at least 2 millimeter wave relay stations. A millimeter wave relay station cluster may have a primary serving base station, and may also have one or more secondary serving base stations, although there may be no secondary serving base stations.

For example, the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster, and the second millimeter wave base station is a main service base station of the second millimeter wave relay station cluster.

The first millimeter wave base station can be switched from the main service base station of the third millimeter wave relay station cluster to the auxiliary service base station of the third millimeter wave relay station cluster, and the first millimeter wave base station can also be switched from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster.

The second millimeter wave base station can be switched from the main service base station of the third millimeter wave relay station cluster to the auxiliary service base station of the third millimeter wave relay station cluster, and the second millimeter wave base station can also be switched from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster.

For example, when the second millimeter wave base station is the main service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is the auxiliary service base station of the third millimeter wave relay station cluster, and when the second millimeter wave base station is the auxiliary service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is the main service base station of the third millimeter wave relay station cluster.

The base station is mainly responsible for radio resource management, service quality management and data transmission functions of a radio air interface. For the core network side, the base station is mainly responsible for forwarding control plane signaling and user plane service data to the core network.

The user equipment accesses to the network side through the wireless access network, and the user equipment includes, but is not limited to, handheld equipment (such as a smart phone and the like) with a wireless communication function, computing equipment, vehicle-mounted equipment, wearable equipment and the like.

Described in more detail below by way of some more specific examples.

Referring to fig. 2, fig. 2 is a schematic flow chart of a millimeter wave communication method according to an exemplary embodiment of the present application, where the millimeter wave communication method may be applied to the millimeter wave communication system illustrated in fig. 1, and the millimeter wave communication method may include:

201. When a first millimeter wave base station is a main service base station of first user equipment, the first millimeter wave base station establishes a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment; wherein the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through a relay station.

202. And the first millimeter wave base station sends a link use strategy rule1 and a link use strategy rule2 to the first user equipment.

203. When a first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a first activation instruction to the first user equipment, wherein the first activation instruction is used for activating a link use strategy rule1 and deactivating the link use strategy rule2.

204. When the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an active state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link.

205. When the first millimeter wave base station is switched to a main service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a second activation instruction to the first user equipment, wherein the second activation instruction is used for activating a link use strategy rule2 and deactivating the link use strategy rule1.

206. When the first user equipment generates a second user plane data packet, the first user equipment selects a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on the link use policy rule2 in an active state, and transmits the second user plane data packet to the first millimeter wave base station by using the selected link.

It will be appreciated that there is no necessary order between steps 203-204 and steps 205-206, and steps 203-204 may be performed prior to steps 205-206 or may be performed later than steps 205-206.

It will be appreciated that when the first ue transmits the same user plane data packet to the mmwave base station via multiple links, the mmwave base station may receive the same user plane data packet from different links (different user plane data packets may have different packet numbers, the same user plane data packet may have the same packet number), the mmwave base station may send the first received user plane data packet to the core network, and may discard the same user plane data packet received subsequently via other links (discard the same user plane data packet after confirming that the same user plane data packet has been sent to the core network).

When the main serving base station of the third millimeter wave relay station cluster is the first millimeter wave base station, the main serving base stations of all millimeter wave relay stations in the third millimeter wave relay station cluster are the first millimeter wave base stations, similarly, when the auxiliary serving base stations of the third millimeter wave relay station cluster are the first millimeter wave base stations, the auxiliary serving base stations of all millimeter wave relay stations in the third millimeter wave relay station cluster are the first millimeter wave base stations, and so on.

The following describes, by way of example, a possible mechanism for identity switching between the primary serving base station and the secondary serving base station of the third millimeter wave relay station cluster.

Referring to fig. 3, fig. 3 is a schematic flow chart of another millimeter wave communication method according to an exemplary embodiment of the present application, where the millimeter wave communication method may be applied to the millimeter wave communication system illustrated in fig. 1, and the other millimeter wave communication method may include:

301. the first user equipment is attached to a first millimeter wave base station.

When the first user equipment is attached to the first millimeter wave base station, then the first millimeter wave base station is the primary serving base station for the first user equipment.

It will be appreciated that the first user device may be handed over from the second millimeter wave base station to the first millimeter wave base station (i.e., the primary serving base station of the first user device is handed over from the second millimeter wave base station to the first millimeter wave base station), thereby enabling attachment to the first millimeter wave base station. Of course, the first user equipment may be started up to access the network in the coverage area of the first millimeter wave base station and be attached to the first millimeter wave base station.

302. The first millimeter wave base station establishes a first direct link between the first millimeter wave base station and a first user device.

303. The first millimeter wave base station establishes a relay link RL11 and a relay link RL13 between the first millimeter wave base station and a first user equipment.

The relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through a relay station.

The first millimeter wave base station is a main service base station of a third millimeter wave relay station cluster.

304. The first millimeter wave base station sends a policy notification message to the first user equipment, wherein the policy notification message carries a link use policy rule1 and a link use policy rule2, and the policy notification message also carries a second activation instruction, and the second activation instruction is used for activating the link use policy rule2 and deactivating the link use policy rule1.

305. When the first user equipment generates a second user plane data packet, the first user equipment selects a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on the link use policy rule2 in an active state, and transmits the second user plane data packet to the first millimeter wave base station by using the selected link.

306. Under the condition that Lq1 and Lq2 meet a second condition, the first millimeter wave base station sends an identity switching instruction for indicating to switch identities of main and auxiliary base stations to a third millimeter wave relay station cluster, wherein the identity switching instruction is used for switching the second millimeter wave base station from an auxiliary service base station of the third millimeter wave relay station cluster to a main service base station of the third millimeter wave relay station cluster, and switching the first millimeter wave base station from the main service base station of the third millimeter wave relay station cluster to an auxiliary service base station of the third millimeter wave relay station cluster.

Wherein the second condition may be that Lq1 is better than Lq2.Lq2 is the link communication quality level between the second millimeter wave base station and the third millimeter wave relay station cluster. Lq1 is a link communication quality level between the first millimeter wave base station and the third millimeter wave relay station cluster.

307. When a first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a first activation instruction to the first user equipment, wherein the first activation instruction is used for activating a link use strategy rule1 and deactivating the link use strategy rule2.

308. When the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an active state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link.

It can be seen that this embodiment provides an expandable millimeter wave system architecture, where the first millimeter wave base station can flexibly and reliably control the transmission link of the user plane data packet through activation and deactivation of the link usage policy, so as to further facilitate enhancement of communication quality by the millimeter wave relay station and use controllability of the millimeter wave relay station, and also facilitate more flexible and reliable guarantee of transmission of the user plane data packet.

Referring to fig. 4, fig. 4 is a schematic flow chart of another millimeter wave communication method according to an exemplary embodiment of the present application, where the millimeter wave communication method may be applied to the millimeter wave communication system illustrated in fig. 1, and the other millimeter wave communication method may include:

401. the first user equipment is attached to a first millimeter wave base station.

402. The first millimeter wave base station establishes a first direct link between the first millimeter wave base station and a first user device.

403. The first millimeter wave base station establishes a relay link RL11 and a relay link RL13 between the first millimeter wave base station and a first user equipment.

The first millimeter wave base station is an auxiliary service base station of a third millimeter wave relay station cluster.

404. The first millimeter wave base station sends a policy notification message to the first user equipment, wherein the policy notification message carries a link use policy rule1 and a link use policy rule2, and the policy notification message also carries a first activation instruction, and the first activation instruction is used for activating the link use policy rule1 and deactivating the link use policy rule2.

405. When the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an active state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link.

406. Under the condition that Lq1 and Lq2 meet a second condition, a second millimeter wave base station sends an identity switching instruction for indicating to switch identities of main and auxiliary base stations to a third millimeter wave relay station cluster, wherein the identity switching instruction is used for switching the second millimeter wave base station from an auxiliary service base station of the third millimeter wave relay station cluster to a main service base station of the third millimeter wave relay station cluster, and switching the first millimeter wave base station from the main service base station of the third millimeter wave relay station cluster to an auxiliary service base station of the third millimeter wave relay station cluster.

407. When the first millimeter wave base station is switched to a main service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a second activation instruction to the first user equipment, and the first activation instruction is used for activating a link use strategy rule2 and deactivating the link use strategy rule1.

408. When the first user equipment generates a second user plane data packet, the first user equipment selects a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on the link use policy rule2 in an activated state, and transmits the second user plane data packet to a first millimeter wave base station by using the selected link.

The embodiment of the application also provides a millimeter wave communication system, which can comprise: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster.

Wherein the first millimeter wave relay station cluster and the third millimeter wave relay station cluster respectively comprise at least 2 millimeter wave relay stations; the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster; the first millimeter wave base station is a main service base station or an auxiliary service base station of the third millimeter wave relay station cluster.

The embodiment of the application also improves a computer storage medium, and the computer storage medium stores a computer program, and the computer program is used for realizing part or all of the steps of any one of the methods provided by the embodiment of the application when being executed by hardware.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

For convenience and brevity, the method embodiments may also be referred to by mutual reference, and will not be described in detail. In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional divisions in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (e.g. a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

The foregoing is merely illustrative of some embodiments of the present application, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present application. The protection scope of the application shall therefore be subject to the claims.

Claims

1. A millimeter wave communication method, wherein the millimeter wave communication method is applied to a millimeter wave communication system, the millimeter wave communication system being a long term evolution LTE system or a 5G communication system, the millimeter wave communication system comprising: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster;

wherein the first millimeter wave relay station cluster and the third millimeter wave relay station cluster respectively comprise at least 2 millimeter wave relay stations; the first millimeter wave base station is a main service base station of the first millimeter wave relay station cluster; the first millimeter wave base station can be switched from a main service base station of the third millimeter wave relay station cluster to an auxiliary service base station of the third millimeter wave relay station cluster, and the first millimeter wave base station can also be switched from the auxiliary service base station of the third millimeter wave relay station cluster to the main service base station of the third millimeter wave relay station cluster;

Wherein the method comprises the following steps:

when a first millimeter wave base station is a main service base station of first user equipment, the first millimeter wave base station establishes a first direct link, a relay link RL11 and a relay link RL13 between the first millimeter wave base station and the first user equipment; wherein the relay link RL11 passes through a first relay station in the first millimeter wave relay station cluster; the relay link RL13 passes through a third relay station in the third millimeter wave relay station cluster; the first direct link does not pass through a relay station;

the first millimeter wave base station sends a link use strategy rule1 and a link use strategy rule2 to first user equipment;

when the first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, the first millimeter wave base station sends a first activation instruction to the first user equipment, wherein the first activation instruction is used for activating a link use strategy rule1 and deactivating the link use strategy rule2; when the first user equipment generates a first user plane data packet, the first user equipment selects a link for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on the link use policy rule1 in an activated state, and transmits the first user plane data packet to a first millimeter wave base station by using the selected link;

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the method further comprises the steps of:

when the first user plane data packet is a user plane data packet of a high priority service, the link which is selected from a first direct link and a relay link RL11 and used for transmitting the first user plane data packet is the first direct link and the relay link RL11 based on a link use policy rule1 in an activated state; when the first user plane data packet is a user plane data packet of a medium priority service, a link which is selected from a first direct link and a relay link RL11 and used for transmitting the first user plane data packet is a first direct link based on a link use policy rule1 in an active state; when the first user plane data packet is a user plane data packet of a low priority service, a link for transmitting the first user plane data packet, which is selected from a first direct link and a relay link RL11 based on a link use policy rule1 in an active state, is the relay link RL11.

3. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the method further comprises the steps of:

when the second user plane data packet is a user plane data packet of a high priority service, selecting a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 as the first direct link, the relay link RL11 and the relay link RL13 based on a link use policy rule2 in an active state;

when the second user plane data packet is a user plane data packet of a medium priority service, selecting a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on a link use policy rule2 in an active state, wherein the link comprises the first direct link, the relay link RL11 or the relay link RL13;

4. A method according to claim 3, wherein the method further comprises: when the second user plane data packet is a user plane data packet of a low priority service and the link communication quality grades of the first direct link, the relay link RL11 and the relay link RL13 are different from each other, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane data packet is the link with the highest link communication quality grade among the first direct link, the relay link RL11 and the relay link RL13 based on the link use policy rule2 in the active state;

when the second user plane data packet is a user plane data packet of a low priority service and the link communication quality grades of the first direct link, the relay link RL11 and the relay link RL13 are completely the same, selecting a link for transmitting the second user plane data packet from the first direct link, the relay link RL11 and the relay link RL13 as the relay link RL13 based on the link use policy rule2 in an activated state;

when the second user plane data packet is a user plane data packet of a low priority service, the link communication quality grades of the relay link RL11 and the relay link RL13 are the same, and the link communication quality grade of the first direct link is lower than that of the relay link RL11, the link selected from the first direct link, the relay link RL11 and the relay link RL13 for transmitting the second user plane data packet is the relay link RL13 based on the link use policy rule2 in an activated state;

5. The method according to any one of claims 1 to 4, characterized in that the millimeter wave communication system further comprises: a second millimeter wave base station and a second millimeter wave relay station cluster; the second millimeter wave relay station cluster comprises at least 2 millimeter wave relay stations;

when the second millimeter wave base station is a main service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is an auxiliary service base station of the third millimeter wave relay station cluster, and when the second millimeter wave base station is an auxiliary service base station of the third millimeter wave relay station cluster, the first millimeter wave base station is a main service base station of the third millimeter wave relay station cluster;

wherein the method further comprises:

When a second millimeter wave base station is a main service base station of first user equipment, the second millimeter wave base station establishes a second direct link, a relay link RL22 and a relay link RL23 between the second millimeter wave base station and the first user equipment; wherein the relay link RL22 passes through a second relay station in the second millimeter wave relay station cluster; the relay link RL23 passes through a fourth relay station in the third millimeter wave relay station cluster; the second direct link does not pass through the relay station;

the second millimeter wave base station sends a link use strategy rule3 and a link use strategy rule4 to the first user equipment;

when the second millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster and the first millimeter wave base station is switched to a main service base station of the third millimeter wave relay station cluster, the second millimeter wave base station sends a third activation instruction to the first user equipment, wherein the third activation instruction is used for activating a link use strategy rule3 and deactivating the link use strategy rule4; when the first user equipment generates a third user plane data packet, the first user equipment selects a link for transmitting the third user plane data packet from the second direct link and the relay link RL22 based on the link use policy rule3 in an activated state, and transmits the third user plane data packet to the second millimeter wave base station by using the selected link;

6. A millimeter wave communication system, wherein the millimeter wave communication system is a long term evolution, LTE, system or a 5G communication system, the millimeter wave communication system comprising: the system comprises a first millimeter wave base station, a first millimeter wave relay station cluster and a third millimeter wave relay station cluster;

the first millimeter wave base station is further used for sending a link use policy rule1 and a link use policy rule2 to the first user equipment;

the first millimeter wave base station is further configured to send a first activation instruction to a first user equipment when the first millimeter wave base station is switched to an auxiliary service base station of a third millimeter wave relay station cluster, where the first activation instruction is used to activate a link use policy rule1 and deactivate a link use policy rule2; when first user equipment generates a first user plane data packet, wherein the first user equipment is used for picking a link used for transmitting the first user plane data packet from a first direct link and a relay link RL11 based on a link use policy rule1 in an activated state, and transmitting the first user plane data packet to a first millimeter wave base station by using the selected link;

7. The system of claim 6, wherein the system further comprises a controller configured to control the controller,

when the first user plane data packet is a user plane data packet of a high priority service, the link which is selected from a first direct link and a relay link RL11 and used for transmitting the first user plane data packet is the first direct link and the relay link RL11 based on a link use policy rule1 in an activated state; when the first user plane data packet is a user plane data packet of a medium priority service, a link which is selected from a first direct link and a relay link RL11 and used for transmitting the first user plane data packet is a first direct link based on a link use policy rule1 in an active state; when the first user plane data packet is a user plane data packet of a low priority service, a link for transmitting the first user plane data packet, which is selected from the first direct link and the relay link RL11 based on the link usage policy rule1 in an active state, is the relay link RL11.

8. The system of claim 6, wherein the system further comprises a controller configured to control the controller,

when the second user plane data packet is a user plane data packet of a medium priority service, selecting a link for transmitting the second user plane data packet from a first direct link, a relay link RL11 and a relay link RL13 based on a link use policy rule2 in an active state, wherein the link comprises the first direct link and further comprises the relay link RL11 or the relay link RL13;

9. A computer readable storage medium, characterized in that it stores a computer program which, when executed by a computer device, is capable of implementing the operations performed by a first millimetre wave base station in the method according to any one of claims 1 to 5.