CN117641392A - Control method and system of wireless forwarding equipment and related equipment - Google Patents

Abstract

The invention discloses a control method, a control system and related equipment of wireless forwarding equipment, and relates to the field of wireless communication. The control method of the wireless forwarding device comprises the following steps: acquiring configuration information from a base station, wherein the configuration information comprises at least one of an indication of whether a cell supports wireless forwarding equipment, an opening and closing indication of a radio frequency unit of the wireless forwarding equipment or measurement auxiliary information, and the measurement auxiliary information comprises at least one of a compensation value and a network searching indication; if the configuration information comprises the opening and closing instruction, controlling the radio frequency unit according to the opening and closing instruction in the configuration information, otherwise, controlling the radio frequency unit according to the pre-configured opening and closing instruction; measuring the searched cell according to the measurement auxiliary information; selecting a resident cell according to the measured result under the condition that at least one of the searched cells supports the wireless forwarding equipment; and under the condition that the searched cells do not support the wireless forwarding equipment, executing operation according to the network searching indication or the pre-configured network searching strategy.

Description

Control method and system of wireless forwarding equipment and related equipment

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, a system, and a related device for controlling a wireless forwarding device.

Background

As the deployment frequency band of the 5G communication system becomes higher, the signal has a larger link loss and is more susceptible to interference, and the coverage area of a single cell becomes smaller. Meanwhile, in order to support enhanced mobile broadband (Enhanced Mobile Broadband, abbreviated as eMBB) and Ultra-high reliability and low-delay communication (Ultra-reliable and Low Latency Communications, abbreviated as uRLLC) communication, the application scene supported by the 5G system is more abundant, so that a repeater is required to be introduced to improve the coverage problem of the 5G signal, and the cellular network deployment is ensured. The existing repeater simply amplifies and forwards all received signals, does not perform other analysis processing, is essentially an amplifier, and realizes two-way communication between a Base Station (BS) and a mobile station (UE). In order to flexibly and densely deploy NR (New Radio) cells and rapidly realize network continuous coverage, an integrated access backhaul (Integrated Access Backhaul, abbreviated as IAB) network is introduced into Rel (version) -16 by 5G, and enhancement is carried out in Rel-17.

Rel-18 will be enhanced against conventional repeater, introducing the concept of a network controlled repeater (Network Controlled Repeater, abbreviated NCR). The NCR comprises two parts, namely an NCR-RU (Radio Unit) and an NCR-MT (Mobile Termination, mobile terminal), wherein the NCR-RU executes the original repeater function, the NCR-MT bears part of the function similar to the UE, and receives the broadcast message indication of the network side. Conventional repeater stations provide omni-directional or directional beams, and beamforming is cell dependent and does not distinguish between uplink and downlink. The NCR is added with an MT module to distinguish uplink from downlink, and the beam forming function can be adjusted according to served UE, so that the UE can amplify signals in the uplink and downlink appointed directions. The NCR has the ability to process and control information, thereby more efficiently performing amplification and forwarding operations, reducing unnecessary noise amplification, transmitting and receiving with better spatial directivity, and further simplifying network integration.

Disclosure of Invention

According to a first aspect of some embodiments of the present invention, there is provided a method for controlling a wireless forwarding device, including: the control unit of the wireless forwarding device obtains configuration information for the wireless forwarding device from the base station, wherein the configuration information for the wireless forwarding device comprises at least one of an indication of whether one or more cells support the wireless forwarding device, an opening and closing indication of a radio frequency unit of the wireless forwarding device, or measurement auxiliary information, and the measurement auxiliary information comprises at least one of a compensation value of the cells for the wireless forwarding device, or a network searching indication; when the configuration information comprises an opening and closing instruction, the control unit controls the opening and closing of the signal forwarding and amplifying functions of the radio frequency unit according to the opening and closing instruction in the configuration information; when the configuration information does not include the opening and closing instruction, the control unit controls the opening and closing of the signal forwarding and amplifying functions of the radio frequency unit according to the pre-configured opening and closing instruction; the control unit measures the searched cell according to the measurement auxiliary information; selecting a cell where the wireless forwarding device resides according to the searched cells supporting the wireless forwarding device and the measurement result under the condition that at least one of the searched cells supports the wireless forwarding device; and under the condition that the searched cells do not support the wireless forwarding equipment, the control unit executes corresponding operation according to the network searching indication in the measurement auxiliary information or the pre-configured network searching strategy.

In some embodiments, the control unit controls the signal forwarding and amplifying functions of the radio frequency unit to be turned on and off according to the on/off instruction, including: under the condition that the opening and closing indication indicates opening, the control unit starts a signal forwarding and amplifying function of the radio frequency unit; in case the on/off indication indicates off, the control unit turns off the signal forwarding and amplifying functions of the radio frequency unit.

In some embodiments, the control unit controls the signal forwarding and amplifying functions of the radio frequency unit to be turned on and off according to a pre-configured on/off instruction, including: after the wireless forwarding equipment completes downlink synchronization with a cell, the control unit controls the radio frequency unit to be converted into an on state according to a pre-configured on-off instruction; or after the wireless forwarding equipment establishes an access link with the cell, the control unit controls the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction.

In some embodiments, the control unit obtaining configuration information for the wireless forwarding device from the base station comprises: the control unit obtains a first broadcast message from the base station, wherein the first broadcast message includes configuration information for the wireless forwarding device.

In some embodiments, the first broadcast message is a master system information block MIB or a system information block SIB.

In some embodiments, the control unit obtaining configuration information for the wireless forwarding device from the base station comprises: the control unit obtains configuration information for the wireless forwarding device from the base station in a Radio Resource Control (RRC) idle state.

In some embodiments, the control method further comprises: after the network searching process is finished, the control unit controls the radio frequency unit to forward and amplify the signal of the appointed cell according to the preconfigured indication under the condition that the wireless forwarding equipment still cannot establish an access link with the cell.

In some embodiments, in the configuration information, a compensation value corresponding to a cell supporting the wireless forwarding device is a preset value.

In some embodiments, the measurement assistance information further comprises at least one of: a temporary offset; reference signal received power RSRP minimum received strength; reference signal received quality RSRQ minimum received strength.

In some embodiments, the control unit measuring the searched cell according to the measurement assistance information includes: for each searched cell: the control unit determines the received value of the searched cell according to the measured RSRP value, the RSRP minimum received strength, the corresponding RSRP minimum received strength offset value, the compensation value and the temporary offset; the control unit determines the quality value of the searched cell according to the measured RSRQ value, the RSRQ minimum received strength, the corresponding RSRQ minimum received strength offset value and the temporary offset; and determining the searched cell as a cell meeting the preset condition by the control unit under the condition that the receiving value and the quality value are larger than the preset value so as to select a cell where the wireless forwarding equipment resides from the cells meeting the preset condition.

In some embodiments, the control unit determines the received value of the searched cell according to the measured RSRP value, the RSRP minimum received strength and the corresponding RSRP minimum received strength offset value, the compensation value and the temporary offset, including: using the formula

S1＝M1-(Q1 _min +Q1 _{min_offset} )-P-offset _temp

Determining a received value of the searched cell, wherein S1 represents the received value, M1 represents the measured RSRP value, Q1 _min Represents the minimum received strength of RSRP, Q1 _{min_offset} Represents the minimum received strength offset value of RSRP, P represents the offset value, offset _temp Representing the temporary offset.

In some embodiments, the control unit determines the quality value of the searched cell based on the measured RSRQ value, the RSRQ minimum received strength, and the corresponding RSRQ minimum received strength offset value and temporary offset, including:

using the formula

S2＝M2-(Q2 _min +Q2 _{min_offset} )-offset _temp

Determining a quality value of the searched cell, wherein S2 represents the quality value, M2 represents the measured RSRQ value, Q2 _min Representing the minimum received strength of RSRQ, Q2 _{min_offset} Representing the RSRQ minimum received strength offset value, offset _temp Representing the temporary offset.

In some embodiments, selecting a cell in which the wireless forwarding device resides based on the searched cell supporting the wireless forwarding device and the measured result comprises: in the case that it is determined that the searched cell meets the preset condition according to the measured result, the second broadcast message of the searched cell indicates that the residence is allowed, and the configuration information indicates that the searched cell supports the wireless forwarding device, the control unit determines the searched cell as the cell where the wireless forwarding device resides.

In some embodiments, the network search indication or network search policy includes at least one of: an indication of whether to stop searching for a network; an indication of whether to periodically search for a network; network searching period in the case of periodic network searching.

In some embodiments, the control unit ignores the cell restriction or the cell reservation indication in the third broadcast message of the cell.

In some embodiments, the preconfigured on-off indication or network search indication is preconfigured in the wireless forwarding device or configured by the network management.

According to a second aspect of some embodiments of the present invention, there is provided a control unit of a wireless forwarding device, including: and a module for executing the control method of any one of the wireless forwarding devices.

According to a third aspect of some embodiments of the present invention, there is provided a wireless forwarding device, comprising: the control unit; and the radio frequency unit is used for forwarding or amplifying the received signals under the condition that the signal forwarding and amplifying functions are started.

In some embodiments, the wireless forwarding device is a network controlled repeater.

According to a fourth aspect of some embodiments of the present invention, there is provided a control system of a wireless forwarding device, including: any one of the foregoing wireless forwarding devices; and a base station configured to transmit configuration information for the wireless forwarding device to the wireless forwarding device.

According to a fifth aspect of some embodiments of the present invention, there is provided an electronic device comprising: a memory; and a processor coupled to the memory, the processor configured to execute any of the foregoing methods of controlling the wireless forwarding device based on instructions stored in the memory.

According to a sixth aspect of some embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements a control method of any one of the foregoing wireless forwarding devices.

Some of the embodiments of the above invention have the following advantages or benefits. The embodiment of the invention solves the problem that the wireless forwarding equipment can define the state of the radio frequency unit and the initial cell selection flow after being started, so that the state of the wireless forwarding equipment is clear and controllable, the condition that the wireless forwarding equipment is not served is avoided, the communication quality and the working performance are improved, and the power consumption of the wireless forwarding equipment is reduced. In addition, the embodiment of the invention also avoids the problem that the searched resident cell possibly does not support the wireless forwarding equipment, reduces unnecessary signaling overhead and shortens the time delay required by configuration.

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

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1A schematically illustrates an operating scenario of a radio frequency repeater.

Fig. 1B schematically illustrates an operational scenario of an intelligent repeater.

Fig. 1C schematically illustrates the structure of the intelligent repeater NCR and the connection relationship with the UE and the gNB.

Fig. 2 illustrates a flow diagram of a method of controlling a wireless forwarding device according to some embodiments of the present invention.

Fig. 3 shows a flow diagram of a measurement method according to some embodiments of the invention.

Fig. 4 illustrates a flow diagram of a cell selection method according to some embodiments of the invention.

Fig. 5 shows a flow diagram of a cell selection method according to further embodiments of the invention.

Fig. 6 illustrates a schematic structure of a control unit of a wireless forwarding device according to some embodiments of the present invention.

Fig. 7 illustrates a schematic diagram of a wireless forwarding device according to some embodiments of the present invention.

Fig. 8 illustrates a schematic diagram of a control system of a wireless forwarding device according to some embodiments of the present invention.

Fig. 9 illustrates a schematic diagram of an electronic device according to some embodiments of the invention.

Fig. 10 shows a schematic structural view of an electronic device according to further embodiments of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Fig. 1A schematically illustrates an operating scenario of a radio frequency repeater. As shown in fig. 1B, the radio frequency repeater RF repeater is located in the coverage area of the base station gNB, and the terminal UE is located in the coverage area of the RF repeater. The RF repeater forwards and amplifies signals between the gNB and the UE.

Fig. 1B schematically illustrates an operational scenario of an intelligent repeater. As shown in fig. 1C, the intelligent repeater RF repeater is in the coverage of the base station gNB, and the terminal UE is in the coverage of the intelligent repeater RF repeater. The intelligent repeater RF repeater forwards and amplifies signals between the gNB and the UE. Compared with a radio frequency repeater, the intelligent repeater can support data transmission based on a beam forming mode.

Fig. 1C schematically illustrates the structure of the intelligent repeater NCR and the connection relationship with the UE and the gNB. As shown in fig. 1C, the UE is communicatively connected with the NCR-RU through a Uu interface; the gNB is in communication connection with the NCR-RU and the NCR-MT through a Uu interface, wherein uplink and downlink control signaling and data of the UE are transmitted between the gNB and the NCR-RU, and control signaling of the NCR is transmitted between the gNB and the NCR-MT.

After analysis, the inventor considers that NCR is taken as new equipment, and when the NCR is started, initial cell selection, time and frequency synchronization by using cell synchronization information, and detection of physical cell identification (Physical Cell Identity, PCID) of the cell are needed to complete the search and selection process of resident cells. The behavior of the NCR at this time includes, for example, the following stages.

1. When powered on, the NCR does not know which radio frequency channels support the NR frequency, and according to the device settings, the NCR-MT scans all radio frequency channels in the NR frequency band to find a suitable cell.

2. On each frequency, the NCR-MT searches only the cell with the strongest signal, ignoring the cell restriction or cell reservation indication contained in the cell system information broadcast. Meanwhile, the NCR-MT indicates the open/close state of the NCR-RU according to the NCR exclusive configuration message or the equipment initial configuration information broadcasted by the cell.

3. When a proper cell is searched, the NCR-MT selects the cell and camps; otherwise, the cell reselection or the selection of the candidate cell is performed according to the broadcast message.

Currently, the 3GPP has no standard for NCR, and the existing specifications cannot meet the above cell selection procedure, and have the following problems:

at power-on, the NCR-RU behavior is undefined, and may be in different uncontrolled states due to different implementations of the NCR-RU, resulting in no service. If the relevant state is not defined, the NCR state may be not controlled by the network, and the communication quality may be affected.

And when the NCR-MT is started, the NCR-RU does not receive an instruction in the process of searching the cell, and the NCR-RU can still work, so that the energy consumption is high.

Further, the camped cell searched by the NCR-MT may not support NCR, which may cause unnecessary signaling overhead and increase configuration delay if related actions are not defined.

Based on the technical problems, the application provides a control method of a wireless forwarding device and related devices, so as to define the behavior of the wireless forwarding device.

Fig. 2 illustrates a flow diagram of a method of controlling a wireless forwarding device according to some embodiments of the present invention. As shown in fig. 2, the control method of the wireless forwarding device of this embodiment includes steps S202 to S212.

In step S202, the control unit of the wireless forwarding device acquires configuration information for the wireless forwarding device from the base station. The wireless forwarding device comprises a control unit and a device unit. For example, when the wireless forwarding device is an NCR, it includes an NCR-MT and an NCR-RU.

In some embodiments, the control unit obtains a first broadcast message from the base station, wherein the first broadcast message includes configuration information for the wireless forwarding device. That is, the wireless forwarding device obtains the configuration information through the first broadcast message of the base station. The first broadcast message is, for example, MIB (Master Information Block, master system information block) or SIB (System Information Block ).

In some embodiments, the control unit obtains configuration information for the wireless forwarding device from the base station in an RRC idle state (rrc_idle state). Thus, the configuration information may define the behavior of the wireless forwarding device in the RRC idle state.

The configuration information for the wireless forwarding device includes at least one of an indication of whether the wireless forwarding device is supported by one or more cells, an indication of switching on and off of a radio frequency unit of the wireless forwarding device, or measurement assistance information.

The measurement assistance information includes at least one of a compensation value for the cell for the wireless forwarding device, or a network search indication. In some embodiments, the measurement assistance information further comprises at least one of: a temporary offset; RSRP (Reference Signal Receiving Power, reference signal received power) minimum received strength; or RSRQ (Reference Signal Receiving Quality, reference signal received quality) minimum received strength.

In some embodiments, in the configuration information, the offset value corresponding to the cell supporting the wireless forwarding device is a preset value, for example, set to 0. Thus, cells supporting wireless forwarding devices can have proprietary compensation values.

In some embodiments, the network search indication in the configuration information includes at least one of:

-an indication of whether to stop the network search;

-an indication of whether to periodically search for networks;

network searching period in the case of periodic network searching.

The contents of the configuration information transmitted by the base station are exemplarily described below. In some embodiments, the configuration information of the wireless forwarding device includes one or more of the following:

-a cell support function Information Element (IE), e.g. an enumerated value or a boolean value, indicating that the cell supports access by the wireless forwarding device, when the IE is present, or when e.g. the value of the IE is set to "TRUE", the control unit of the wireless forwarding device can read the broadcast message of the cell and establish a connection; when the IE does not exist, or for example, the IE is not set or set to "FALSE", it indicates that the cell does not support the function of the wireless forwarding device, or the cell is already occupied by the wireless forwarding device, the control unit cannot receive the NCR dedicated configuration broadcast message of the cell to access the cell;

an on-OFF indication, for example an enumerated value or a boolean value, which in some embodiments indicates that the wireless forwarding device is no longer forwarding signals during the cell selection phase, entering a deactivated state, when the on-OFF indication is set (i.e. carried in configuration information), or its value is a preset value (e.g. "OFF");

-a temporary offset for use when a connection is established failure;

-RSRP minimum received strength requirement Q1 _min : when camping on a VPLMN (Visited Public Land Mobile Network ) and periodically searching for a high priority PLMN (Public Land Mobile Network ), and evaluating cell quality using calculated received values, Q1 can be adjusted to prevent ping-pong effects _min Offset is carried out, and the value after offset is Q1 _{min_offset} ；

-RSRQ minimum received strength requirement Q2 _min : to prevent ping-pong effect, Q2 may be used when camping on a VPLMN to periodically search for high priority PLMNs and evaluate cell quality using calculated quality values _min Offset with the value Q2 _{min_offset} ；

-a compensation value set for the wireless forwarding device.

The configuration information of the wireless forwarding device may further include other contents as needed, which are not described herein.

In step S204, in the case where the configuration information includes an on/off instruction, the control unit controls on/off of the signal forwarding and amplifying function of the radio frequency unit according to the on/off instruction in the configuration information.

In some embodiments, when controlling according to an open-close instruction in the configuration information, the control unit turns on a signal forwarding and amplifying function of the radio frequency unit in a case that the open-close instruction indicates on; in case the on/off indication indicates off, the control unit turns off the signal forwarding and amplifying function of the radio frequency unit.

In step S206, in the case where the configuration information does not include an on/off instruction, the control unit controls the on/off of the signal forwarding and amplifying function of the radio frequency unit according to the on/off instruction configured in advance. The preconfigured on-off indication is preconfigured in the wireless forwarding device or configured by the network management, for example.

In some embodiments, the control unit turns on the signal forwarding and amplifying function of the radio frequency unit when controlling according to a pre-configured on/off instruction, in case the on/off instruction indicates on; in case the on/off indication indicates off, the control unit turns off the signal forwarding and amplifying function of the radio frequency unit.

In some embodiments, the preconfigured on-off indication may also include more detailed control indication information. For example, after the wireless forwarding device completes downlink synchronization with the cell, the control unit controls the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction; or after the wireless forwarding equipment establishes an access link with the cell, the control unit controls the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction.

For example, the preconfigured on-off indication indicates "working", and after the downlink synchronization of the cell is completed, the radio frequency unit is enabled to quickly enter into a working state for forwarding and amplifying signals; for another example, the preconfigured on-off indication indicates "no work", and the radio frequency unit is made to close the forwarding and amplifying functions, and the radio frequency unit does not start to amplify and forward the received signal until the access link is established.

In step S208, the control unit performs measurement on the searched cell according to the measurement assistance information.

In step S210, in the case where at least one of the searched cells supports the wireless repeater, a cell in which the wireless repeater resides is selected according to the searched cell supporting the wireless repeater and the measured result.

In some embodiments, the control unit determines the searched cell as a cell in which the wireless forwarding device resides, in a case where it is determined from the measurement result that the searched cell meets a preset condition, the second broadcast message of the searched cell indicates that the residence is allowed, and the configuration information indicates that the searched cell supports the wireless forwarding device.

In some embodiments, the control unit ignores the cell restriction or the cell reservation indication in the third broadcast message of the cell when making the cell selection.

In step S212, in the case that none of the searched cells supports the wireless forwarding device, the control unit performs a corresponding operation according to the network searching instruction in the measurement assistance information or the preconfigured network searching policy.

In some embodiments, the network search indication or network search policy includes at least one of:

-an indication of whether to stop the network search;

-an indication of whether to periodically search for networks;

network searching period in the case of periodic network searching.

The network searching strategy may further contain more detailed information as needed.

In some embodiments, the control unit controls the radio frequency unit to forward and amplify the signal of the designated cell according to the pre-configured instruction under the condition that the wireless forwarding device still cannot establish the access link with the cell after the network searching process is completed. The indication may be the same as or different from the content of the open/close indication in the configuration information issued by the base station. That is, after the network searching process is completed, the wireless forwarding device may control the state of the radio frequency unit based on other indications.

In some embodiments, the preconfigured network searching policy is preconfigured in the wireless forwarding device or configured for the network management.

The embodiment solves the problem that the wireless forwarding equipment can define the state of the radio frequency unit and the initial cell selection flow after being started, so that the state of the wireless forwarding equipment is clear and controllable, the condition that the wireless forwarding equipment is not served is avoided, the communication quality and the working performance are improved, and the power consumption of the wireless forwarding equipment is reduced. In addition, the above embodiment also avoids the problem that the searched resident cell may not support the wireless forwarding device, reduces unnecessary signaling overhead, and shortens the time delay required for configuration.

An embodiment of measuring cells according to measurement assistance information is described below with reference to fig. 3.

Fig. 3 shows a flow diagram of a measurement method according to some embodiments of the invention. As shown in fig. 3, the measurement method of this embodiment includes steps S302 to S306.

In step S302, the control unit determines a reception value of the searched cell according to the measured RSRP value, the RSRP minimum reception strength, and the corresponding RSRP minimum reception strength offset value, compensation value, and temporary offset.

In some embodiments, the received value of the searched cell is determined using equation (1):

S1＝M1-(Q1 _min +Q1 _{min_offset} )-P-offset _temp (1)

wherein S1 represents a received value, M1 represents a measured RSRP value, Q1 _min Represents the minimum received strength of RSRP, Q1 _{min_offset} Represents the minimum received strength offset value of RSRP, P represents the offset value, offset _temp Representing the temporary offset.

In step S304, the control unit determines a quality value of the searched cell according to the measured RSRQ value, the RSRQ minimum received strength, and the corresponding RSRQ minimum received strength offset value and temporary offset.

In some embodiments, the quality value of the searched cell is determined using equation (2):

S2＝M2-(Q2 _min +Q2 _{min_offset} )-offset _temp (2)

wherein S2 represents a mass value, M2Representing measured RSRQ value, Q2 _min Representing the minimum received strength of RSRQ, Q2 _{min_offset} Representing the RSRQ minimum received strength offset value, offset _temp Representing the temporary offset.

In step S306, in the case where the received value and the quality value are greater than the preset value, the searched cell is determined as a cell satisfying the preset condition, so that a cell in which the wireless forwarding apparatus resides is selected from the cells satisfying the preset condition.

By the method of the embodiment, the cell can be measured according to the pre-configured measurement auxiliary information, so that a proper cell can be selected for residence.

The following describes embodiments of a control method of a wireless forwarding device according to the present invention in conjunction with two exemplary application scenarios.

Fig. 4 illustrates a flow diagram of a cell selection method according to some embodiments of the invention. This embodiment describes the cell selection procedure at power-on of the NCR. In this embodiment, the current cell searched by the NCR-MT supports the NCR function. After the NCR-MT receives the special configuration parameters, the NCR-RU state is correspondingly indicated. As shown in fig. 4, the cell selection method of this embodiment includes steps S402 to S412.

In step S402, the base station gNB issues NCR-specific configuration parameters through SIB1, in SIB1 message:

-NCR-Support (indication of cell Support NCR function): "TRUE";

-NCR-RUON (open/close indication for NCR-RU): "OFF";

offsettemp (temporary offset): 0;

-P (offset): 0.

in step S404, after the NCR is powered on, the NCR-RU is in a closed state according to the initial device settings.

In step S406, the NCR-MT receives the broadcast message, reads that the NCR-Support field is "TRUE" and the NCR-run field is "OFF", and measures the RSRP value M1 and RSRQ value M2 of the cell.

In step S408, the NCR calculates a cell reception value S1 and a quality value S2, and the calculation formula may refer to formulas (1) and (2) above. And through calculation, determining that the receiving value S1 and the quality value S2 of the cell are both larger than 0, and judging that the cell meets the condition.

In step S410, the NCR-MT configures the NCR-RU status to off according to the broadcast message.

In step S412, the NCR selects the cell as a camping cell and establishes an access link.

Fig. 5 shows a flow diagram of a cell selection method according to further embodiments of the invention. This embodiment describes the cell selection procedure at power-on of the NCR. In this embodiment, the current cell searched by the NCR-MT does not support the NCR function. As shown in fig. 5, the cell selection method of this embodiment includes steps S502 to S510.

In step S502, the base station gNB issues NCR-specific configuration parameters through SIB1, in SIB1 message:

-NCR-Support not set;

-NCR-RUON not set;

-offsettemp：0；

-P：0。

in step S504, after the NCR is powered on, the NCR-RU is in an off state according to the initial device settings.

In step S506, the NCR-MT receives the broadcast message, and reads that neither the NCR-Support nor the NCR-RUON fields are set. That is, the broadcast message indicates that the cell does not support NCR, nor includes an on-off indication. Then in the RRC idle state, the NCR-MT cannot control the NCR-RU according to the broadcast message and needs to further read the preconfigured information.

In step S508, the NCR-MT reads an on-off instruction preconfigured by the device, which indicates "on". After the NCT-MT completes the downlink synchronization of the cell, the NCR-RU is configured to be started, so that the NCT-MT rapidly enters a working state of amplifying and forwarding signals.

In step S510, since the broadcast message does not include the network searching instruction, the NCR-MT performs periodic cell reselection according to the "periodic network searching" instruction in the preconfigured network searching policy.

Embodiments of a control unit of a wireless forwarding device according to some embodiments of the present invention are described below with reference to fig. 6.

Fig. 6 illustrates a schematic structure of a control unit of a wireless forwarding device according to some embodiments of the present invention. As shown in fig. 6, the control unit 600 of this embodiment includes: an obtaining module 6100 configured to obtain configuration information for the wireless forwarding device from the base station, where the configuration information for the wireless forwarding device includes at least one of an indication of whether the wireless forwarding device is supported by one or more cells, an indication of switching of a radio frequency unit of the wireless forwarding device, or measurement assistance information, and the measurement assistance information includes at least one of a compensation value of the cell for the wireless forwarding device, or a network search indication; an opening/closing control module 6200 configured to control, in a case where the configuration information includes an opening/closing instruction, opening and closing of a signal forwarding and amplifying function of the radio frequency unit according to the opening/closing instruction in the configuration information; when the configuration information does not include the opening and closing instruction, controlling the opening and closing of the signal forwarding and amplifying functions of the radio frequency unit according to the pre-configured opening and closing instruction; a measurement module 6300 configured to measure the searched cell according to the measurement assistance information; a cell selection module 6400 configured to select a cell in which the wireless forwarding device resides according to the searched cells supporting the wireless forwarding device and the measurement result, in the case where at least one of the searched cells supports the wireless forwarding device; the network searching module 6500 is configured to execute corresponding operations according to a network searching instruction in the measurement auxiliary information or a preconfigured network searching policy under the condition that none of the searched cells supports the wireless forwarding device.

In some embodiments, the opening and closing control module 6200 is further configured to, if the opening and closing indication indicates on, the control unit turns on the signal forwarding and amplifying function of the radio frequency unit; in case the on/off indication indicates off, the control unit turns off the signal forwarding and amplifying functions of the radio frequency unit.

In some embodiments, the switching control module 6200 is further configured to control the radio frequency unit to switch to the on state according to a pre-configured switching instruction after the wireless forwarding device completes downlink synchronization with the cell; or after the wireless forwarding equipment establishes an access link with the cell, controlling the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction.

In some embodiments, the acquisition module 6100 is further configured to acquire a first broadcast message from the base station, where the first broadcast message includes configuration information for the wireless forwarding device.

In some embodiments, the first broadcast message is a MIB or SIB.

In some embodiments, the acquiring module 6100 is further configured to acquire configuration information for the wireless forwarding device from the base station in an RRC idle state.

In some embodiments, the switching control module 6200 is further configured to control, according to a preconfigured instruction, the radio frequency unit to forward and amplify the signal of the specified cell when the wireless forwarding device is still unable to establish an access link with the cell after the network searching process is completed.

In some embodiments, in the configuration information, a compensation value corresponding to a cell supporting the wireless forwarding device is a preset value.

In some embodiments, the measurement assistance information further comprises at least one of: a temporary offset; reference signal received power RSRP minimum received strength; reference signal received quality RSRQ minimum received strength.

In some embodiments, the measurement module 6300 is further configured to, for each searched cell: determining a receiving value of the searched cell according to the measured RSRP value, the RSRP minimum receiving intensity, the corresponding RSRP minimum receiving intensity offset value, the compensation value and the temporary offset; determining the quality value of the searched cell according to the measured RSRQ value, the RSRQ minimum received strength, the corresponding RSRQ minimum received strength offset value and the temporary offset; and determining the searched cell as a cell meeting the preset condition under the condition that the received value and the quality value are larger than the preset value so as to select a cell where the wireless forwarding equipment resides from the cells meeting the preset condition.

In some embodiments, the measurement module 6300 is further configured to employ a formula

S1＝M1-(Q1 _min +Q1 _{min_offset} )-P-offset _temp

Determining a received value of the searched cell, wherein S1 represents the received value, M1 represents the measured RSRP value, Q1 _min Represents the minimum received strength of RSRP, Q1 _{min_offset} Represents the minimum received strength offset value of RSRP, P represents the offset value, offset _temp Representing the temporary offset.

In some embodiments, the measurement module 6300 is further configured to employ a formula

S2＝M2-(Q2 _min +Q2 _{min_offset} )-offset _temp

Determining a quality value of the searched cell, wherein S2 represents the quality value, M2 represents the measured RSRQ value, Q2 _min Representing the minimum received strength of RSRQ, Q2 _{min_offset} Representing the RSRQ minimum received strength offset value, offset _temp Representing the temporary offset.

In some embodiments, the cell selection module 6400 is further configured to determine the searched cell as a cell in which the wireless forwarding device resides if it is determined from the measurement result that the searched cell meets a preset condition, the second broadcast message of the searched cell indicates that the residence is allowed, and the configuration information indicates that the searched cell supports the wireless forwarding device.

In some embodiments, the network search indication or network search policy includes at least one of: an indication of whether to stop searching for a network; an indication of whether to periodically search for a network; network searching period in the case of periodic network searching.

In some embodiments, the cell selection module 6400 is further configured to ignore a cell restriction or a cell reservation indication in a third broadcast message of a cell.

In some embodiments, the preconfigured on-off indication or network search indication is preconfigured in the wireless forwarding device or configured by the network management.

Fig. 7 illustrates a schematic diagram of a wireless forwarding device according to some embodiments of the present invention. As shown in fig. 7, the wireless forwarding device 70 of this embodiment includes a control unit 710 and a radio frequency unit 720. The specific implementation of the control unit 710 refers to the foregoing embodiments, and will not be described herein. The radio frequency unit 720 is further configured to forward or amplify the received signal if the signal forwarding and amplification function is on.

In some embodiments, wireless forwarding device 70 is an NCR.

Fig. 8 illustrates a schematic diagram of a control system of a wireless forwarding device according to some embodiments of the present invention. As shown in fig. 8, the control system 8 of the wireless repeater of this embodiment includes a wireless repeater 81 and a base station 82. The specific implementation of the wireless forwarding device 81 refers to the foregoing embodiment, and will not be described herein. The base station 82 is configured to transmit configuration information for the wireless forwarding device to the wireless forwarding device.

Fig. 9 illustrates a schematic diagram of an electronic device according to some embodiments of the invention. As shown in fig. 9, the electronic device 90 of this embodiment includes: a memory 910 and a processor 920 coupled to the memory 910, the processor 920 being configured to execute the method of controlling the wireless forwarding device in any of the foregoing embodiments based on instructions stored in the memory 910.

The memory 910 may include, for example, system memory, fixed nonvolatile storage media, and so forth. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), and other programs.

Fig. 10 shows a schematic structural view of an electronic device according to further embodiments of the present invention. As shown in fig. 10, the electronic apparatus 100 of this embodiment includes: the memory 1010 and the processor 1020 may also include an input-output interface 1030, a network interface 1040, a storage interface 1050, and the like. These interfaces 1030, 1040, 1050 and the memory 1010 and processor 1020 may be connected by, for example, a bus 1060. The input/output interface 1030 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, a touch screen, and the like. Network interface 1040 provides a connection interface for a variety of networking devices. Storage interface 1050 provides a connection interface for external storage devices such as SD cards, U-discs, and the like.

An embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements a control method of any one of the foregoing wireless forwarding devices.

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

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

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

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

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (22)

1. A control method of a wireless forwarding device, comprising:

A control unit of the wireless forwarding device obtains configuration information for the wireless forwarding device from a base station, wherein the configuration information for the wireless forwarding device comprises at least one of an indication of whether one or more cells support the wireless forwarding device, an opening and closing indication of a radio frequency unit of the wireless forwarding device, or measurement auxiliary information, and the measurement auxiliary information comprises at least one of a compensation value of the cells for the wireless forwarding device, or a network searching indication;

when the configuration information comprises the opening and closing instruction, the control unit controls the opening and closing of the signal forwarding and amplifying functions of the radio frequency unit according to the opening and closing instruction in the configuration information;

when the configuration information does not include the opening and closing instruction, the control unit controls the opening and closing of the signal forwarding and amplifying functions of the radio frequency unit according to the pre-configured opening and closing instruction;

the control unit measures the searched cells according to the measurement auxiliary information;

selecting a cell where the wireless forwarding device resides according to the searched cells supporting the wireless forwarding device and the measurement result under the condition that at least one of the searched cells supports the wireless forwarding device;

And under the condition that the searched cells do not support the wireless forwarding equipment, the control unit executes corresponding operation according to the network searching indication or the preconfigured network searching strategy in the measurement auxiliary information.

2. The control method according to claim 1, wherein the control unit controlling the turning on and off of the signal forwarding and amplifying function of the radio frequency unit according to the on/off instruction comprises:

the control unit starts the signal forwarding and amplifying functions of the radio frequency unit under the condition that the opening and closing indication indicates opening;

and the control unit turns off the signal forwarding and amplifying functions of the radio frequency unit under the condition that the opening and closing indication indicates closing.

3. The control method according to claim 2, wherein the control unit controlling the turning on and off of the signal forwarding and amplifying function of the radio frequency unit according to a pre-configured on/off instruction comprises:

after the wireless forwarding device completes downlink synchronization with the cell, the control unit controls the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction; or,

after the wireless forwarding device establishes an access link with the cell, the control unit controls the radio frequency unit to be switched into an on state according to a pre-configured on-off instruction.

4. The control method of claim 1, wherein the control unit obtaining configuration information for a wireless forwarding device from a base station comprises:

the control unit obtains a first broadcast message from a base station, wherein the first broadcast message includes configuration information for a wireless forwarding device.

5. The control method of claim 4, wherein the first broadcast message is a master system information block MIB or a system information block SIB.

6. The control method according to any one of claims 1 to 5, wherein the control unit obtaining configuration information for a wireless forwarding device from a base station includes:

the control unit obtains configuration information for the wireless forwarding device from the base station in a Radio Resource Control (RRC) idle state.

7. The control method according to claim 1, further comprising:

after the network searching process is finished, the control unit controls the radio frequency unit to forward and amplify the signal of the appointed cell according to the pre-configured indication under the condition that the wireless forwarding device still cannot establish an access link with the cell.

8. The control method according to claim 1, wherein in the configuration information, a compensation value corresponding to a cell supporting the wireless forwarding device is a preset value.

9. The control method of claim 1, wherein the measurement assistance information further comprises at least one of:

a temporary offset;

reference signal received power RSRP minimum received strength;

reference signal received quality RSRQ minimum received strength.

10. The control method of claim 9, wherein the control unit measuring the searched cell according to the measurement assistance information comprises:

for each searched cell:

the control unit determines the received value of the searched cell according to the measured RSRP value, the RSRP minimum received strength, the corresponding RSRP minimum received strength offset value, the compensation value and the temporary offset;

the control unit determines the quality value of the searched cell according to the measured RSRQ value, the RSRQ minimum received strength, the corresponding RSRQ minimum received strength offset value and the temporary offset; the method comprises the steps of,

and under the condition that the received value and the quality value are larger than preset values, the control unit determines the searched cell as a cell meeting preset conditions so as to select a cell where the wireless forwarding equipment resides from the cells meeting the preset conditions.

11. The control method according to claim 9 or 10, wherein the control unit determining the reception value of the searched cell from the measured RSRP value, the RSRP minimum reception strength and the corresponding RSRP minimum reception strength offset value, compensation value and the temporary offset comprises:

using the formula

S1＝M1–(Q1 _min +Q1 _{min_offset} )–P–Offset _temp

Determining a received value of the searched cell, wherein S1 represents the received value, M1 represents the measured RSRP value, Q1 _min Representing the minimum received strength of the RSRP, Q1 _{min_offset} Represents the RSRP minimum received strength offset value, P represents the compensation value, offset _temp Representing the temporary offset.

12. The control method according to claim 9 or 10, wherein the control unit determining the quality value of the searched cell from the measured RSRQ value, the RSRQ minimum received strength and the corresponding RSRQ minimum received strength offset value and the temporary offset comprises:

using the formula

S2＝M2–(Q2 _min +Q2 _{min_offset} )–offset _temp

Determining a quality value of the searched cell, wherein S2 represents the quality value, M2 represents the measured RSRQ value, Q2 _min Representing the minimum received strength of the RSRQ, Q2 _{min_offset} Represents the RSRQ minimum received strength offset value, offset _temp Representing the temporary offset.

13. The control method according to claim 1 or 10, wherein the selecting a cell in which the wireless forwarding device resides according to the searched cell supporting the wireless forwarding device and the measured result comprises:

the control unit determines the searched cell as a cell in which the wireless forwarding device resides, in a case where it is determined that the searched cell meets a preset condition according to a result of the measurement, the second broadcast message of the searched cell indicates that the residence is allowed, and the configuration information indicates that the searched cell supports the wireless forwarding device.

14. The control method of claim 1, wherein the network search indication or network search policy comprises at least one of:

an indication of whether to stop searching for a network;

an indication of whether to periodically search for a network;

network searching period in the case of periodic network searching.

15. The control method according to claim 1, wherein the control unit ignores a cell restriction or a cell reservation indication in a third broadcast message of the cell.

16. The control method according to claim 1, wherein the preconfigured on-off indication or network searching indication is preconfigured in the wireless forwarding device or configured by a network management.

17. A control unit of a wireless forwarding device, comprising:

a module for performing the method of controlling a wireless forwarding device according to any one of claims 1 to 16.

18. A wireless forwarding device, comprising:

the control unit of claim 17; and

and the radio frequency unit is used for forwarding or amplifying the received signals under the condition that the signal forwarding and amplifying functions are started.

19. The wireless forwarding device of claim 18 wherein the wireless forwarding device is a network control repeater.

20. A control system for a wireless forwarding device, comprising:

the wireless forwarding device of claim 18 or 19; and

and the base station is configured to send configuration information for the wireless forwarding device to the wireless forwarding device.

21. An electronic device, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of controlling a wireless forwarding device according to any of claims 1-16 based on instructions stored in the memory.

22. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the modules of the method of controlling a wireless forwarding device according to any one of claims 1 to 16.