WO2014094290A1

WO2014094290A1 - Radio link control method, base station, and user equipment

Info

Publication number: WO2014094290A1
Application number: PCT/CN2012/087131
Authority: WO
Inventors: 郭房富; 徐凌峰
Original assignee: 华为技术有限公司
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2014-06-26
Also published as: CN104041117A; CN104041117B

Abstract

The present invention provides a radio link control method, which is applied to a first base station in a first cell. The method comprises: when a selected user equipment in a second cell moves toward a first cell neighboring to the second cell, establishing an uplink coordinating link with the selected user equipment in the second cell outside a soft handover area of the first cell and the second cell; receiving, through the uplink coordinating link, uplink data uploaded by the selected user equipment in the second cell; and sending the uplink data after demodulation and decoding to a radio network controller (RNC), so that the RNC combines the uplink data and uplink data uploaded by the user equipment through a second base station in the second cell. The radio link control method provided by the embodiment of the present invention enables an RNC to perform macro diversity combining on data which is sent by one UE and received in cells not belonging to one active set.

Description

Wireless link control method, base station and user equipment

The present invention relates to the field of communications, and in particular, to a radio link control method, a base station, and a user equipment. Background technique

In the Universal Mobile Telecommunications System (UMTS), the access network (Radio Access Network, RAN) side performs macro diversity on soft handover users in the active set in the Radio Network Controller (RNC). merge. For users who are not added to the active set, the base station node (NodeB) does not receive signals. The active set refers to a set of cells that establish a connection with a user equipment (User Equipment, UE). The soft handover refers to that the UE establishes communication with the new base station when entering the cell from another cell. The switching mode of the communication with the original base station is cut off until the original base station signal is received below a threshold. Generally, there is a soft handover area between two adjacent cells that overlaps with two cells at the same time, and the UE in the soft handover area simultaneously maintains the uplink and downlink with the two cells, and both cells belong to the same. The active set of user devices. As shown in FIG. 1 , when the UE is in the soft handover area, the UE sends data to the base stations in the two cells Cell A and Cell B at the same time. After receiving the uplink data sent by the UE, the base stations in the Cell A and the Cell B After demodulation and decoding, the RNC is uploaded to the RNC, and the RNC performs selective combining and sends it to the core network.

In the actual network, because the uplink load imbalance of the cell, the uplink and downlink unbalance, or the cell transmit power are different, the cell with better uplink signal and noise of the receiving UE is outside the soft handoff zone when the UE is outside, even at this time. , the UE is still in Cell A, but the uplink signal to noise of the base station in the UE and Cell B The ratio is higher than the uplink signal-to-noise ratio of the base station in the UE and the Cell A. The Cell B cannot be added to the active set of the UE. The Cell B does not receive the data sent by the UE, and the RNC cannot receive the received information in the Cell B and the Cell A. The data sent by the user equipment is macro-divided and combined. Summary of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a radio link control method, so that the user equipment cannot be better in the uplink and downlink unbalance, the uplink and downlink load imbalance, or the macro-micro network scenario. The problem of uploading data in the uplink.

In a first aspect, an embodiment of the present invention provides a radio link control method, which is applied to a first base station in a first cell, where the method includes:

When the selected user equipment moves toward the first cell in the second cell, establishing a relationship with the selected user equipment in the second cell outside the soft handover area of the first cell and the second cell The uplink cooperative link, the second cell and the first cell are neighboring cells, and the uplink cooperative link is used by the first base station in the first cell to receive uplink of the selected user equipment Receiving, by the uplink cooperative link, uplink data uploaded by the selected user equipment in the second cell;

Transmitting the demodulated and decoded uplink data to the radio network controller, so that the radio network controller uploads the uplink data and the user equipment by using a second base station in the second cell. The upstream data is merged.

In a first possible implementation manner of the first aspect of the present invention, establishing an uplink cooperative link with a selected user equipment in the second cell, the method further includes:

Receiving identification information of the user equipment delivered by the radio network controller;

Searching for an uplink channel quality parameter between the user equipment corresponding to the identifier information in the second cell and the first base station;

Selecting, as the selected user, the user equipment whose uplink channel quality parameter meets a set threshold Equipment.

In a second possible implementation manner of the first aspect of the present invention, the establishing, in the uplink cooperative link between the selected user equipments in the neighboring cell, the selected user equipment is in the second cell. When the downlink quality between the base station of the first cell exceeds a set threshold, the base station of the second cell sends the notified user equipment to the radio network controller.

In a second aspect, an embodiment of the present invention provides a radio link control method, where the method includes: when the second cell moves toward the first cell, the soft in the first cell and the second cell Establishing an uplink cooperative link with the first base station in the first cell, the second cell and the first cell are adjacent areas, and the uplink cooperative link is used for the first The first base station in the cell receives uplink data of the selected user equipment;

And uploading uplink data to the first base station in the second cell by using the uplink cooperative link, so that the first base station sends the demodulated and decoded uplink data to the wireless network control. The radio network controller merges the uplink data with uplink data uploaded by the user equipment by using a second base station in the second cell.

In a first possible implementation manner of the second aspect of the present invention, when the second cell moves toward the first cell, establishing and staying outside the soft handover area of the first cell and the second cell In the uplink cooperative link between the first base station in the first cell, when the uplink channel quality parameter of the selected user equipment and the first base station meets a set threshold, the establishing in the first cell is established. An uplink cooperative link between the first base stations.

In a second possible implementation manner of the second aspect of the present invention, when the second cell moves toward the first cell, the outside of the soft handover area of the first cell and the second cell is established. Before the uplink cooperative link between the first base station in the first cell, the method further includes:

In the second cell, when the downlink quality of the first base station exceeds a set threshold, the base station of the second cell sends a notification to the network side;

When the second cell moves toward the first cell, in the first cell and the second Outside the soft handoff area of the cell, before establishing an uplink cooperative link with the first base station in the first cell, the following is specifically:

After receiving the notification, the network establishes an uplink cooperative link between the base station in the neighboring cell of the first cell and the user equipment under the control of the radio network controller.

In a third aspect, an embodiment of the present invention provides a base station, where the base station includes:

a link control unit, configured to establish and be in a second cell outside the soft handover area of the first cell and the second cell when the selected user equipment moves toward the first cell in the second cell An uplink cooperative link between the selected user equipments, where the second cell is a neighboring cell with the first cell, and the uplink cooperative link is used by the first base station in the first cell Determining uplink data of the selected user equipment;

a receiving unit, configured to receive uplink data uploaded by the selected user equipment in the second cell by using the uplink cooperative link;

a sending unit, configured to send the demodulated and decoded uplink data to the radio network controller, so that the radio network controller passes the uplink data and the user equipment in the second cell The uplink data uploaded by the second base station is merged.

In a first possible implementation manner of the third aspect of the present invention, the user equipment search unit is further configured to establish, in the link control unit, an uplink cooperation chain with the selected user equipment in the second cell. Road, before:

The user equipment whose uplink channel quality parameter meets the set threshold is selected as the selected user equipment.

In a second possible implementation manner of the third aspect of the present invention, the selected user equipment is that when a downlink quality between the second cell and a base station of the first cell exceeds a set threshold The base station of the second cell sends the notified user equipment to the radio network controller.

In a fourth aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a link control unit, configured to: when the second cell moves toward the first cell, in the first cell and An uplink cooperative link with the first base station in the first cell is established outside the soft handover area of the second cell, where the second cell and the first cell are adjacent areas, and the uplink cooperative link is used. The first base station in the first cell receives the uplink data of the selected user equipment, and the sending unit is configured to send, by using the uplink cooperative link, the first base station in the second cell. Uploading uplink data, so that the first base station sends the demodulated and decoded uplink data to the radio network controller, and the radio network controller passes the uplink data and the user equipment by using the The uplink data uploaded by the second base station in the two cells is merged.

In a first possible implementation manner of the fourth aspect of the present invention, the link control unit is configured to: when the second cell moves toward the first cell, in the first cell and the second cell When the uplink channel quality parameter of the selected user equipment and the first base station satisfies a set threshold, the uplink channel quality parameter of the selected user equipment and the first base station is met in the uplink cooperative link between the first base station and the first base station. Establishing an uplink cooperative link between the first base stations in the first cell.

In a second possible implementation manner of the fourth aspect of the present invention, the sending unit is further configured to: when the downlink quality of the first base station exceeds a set threshold, in the second cell, by using the The base station of the second cell sends a notification to the network side;

The link control unit is specifically configured to: after receiving the notification, the network establishes, between the base station in the neighboring cell of the first cell, and the user equipment, under the control of the radio network controller Uplink cooperative link;

In a fifth aspect, an embodiment of the present invention provides a base station, where the base station includes: a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory;

The program stores a set of program codes, and the processor is configured to call program code stored in the memory to perform the following operations: When the selected user equipment moves toward the first cell in the second cell, establishing a relationship with the selected user equipment in the second cell outside the soft handover area of the first cell and the second cell The uplink cooperative link, the second cell and the first cell are neighboring cells, and the uplink cooperative link is used by the first base station in the first cell to receive uplink of the selected user equipment Receiving, by the uplink cooperative link, uplink data uploaded by the selected user equipment in the second cell;

In a sixth aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes: a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory; and the memory stores a group Program code, and the processor is used to call program code stored in the memory, and is used to perform the following operations:

Establishing an uplink cooperative link with the first base station in the first cell, outside the soft handover area of the first cell and the second cell, when the second cell moves toward the first cell, The second cell is a neighboring cell, and the uplink cooperative link is used by the first base station in the first cell to receive uplink data of the selected user equipment;

According to the radio link control method provided by the embodiment of the present invention, when the selected user equipment moves toward the first cell in the second cell, outside the soft handover area of the first cell and the second cell, Establishing an uplink cooperative link with the selected user equipment in the second cell, and the first base station in the first cell receives the second coordinated cell in the second cell. And the uplink data that is sent by the selected user equipment, and then the demodulated and decoded uplink data is sent to the radio network controller, so that the radio network controller sends the uplink data to the user equipment. Merging is performed by uplink data uploaded by the second base station in the second cell. The system can receive data sent by the user equipment in a cell with better uplink channel quality, so that the RNC can belong to an active set without expanding the soft handover area, and the first base station and the UE do not occupy the downlink code channel resources. The data sent by the same UE received in the cell is subjected to macro diversity combining. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are merely the present invention. Some of the embodiments can be obtained by those skilled in the art from the drawings without any inventive labor.

1 is a state diagram of a user equipment activation set in the prior art;

2 is a flowchart of an embodiment of a method for controlling a radio link provided by the present invention;

3 is a flow chart of an embodiment of a radio link control method provided by the present invention;

4 is a reference diagram of an application scenario of another embodiment of a radio link control method provided by the present invention;

5 is a flowchart of another embodiment of a radio link control method according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 8 is another schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 9 is another schematic structural diagram of a user equipment according to an embodiment of the present invention. detailed description

In the scenario shown in FIG. 1, when the user of the handheld UE moves from the left Cell A to the right Cell B, the soft handoff region that does not reach the cells of Cell A and Cell B, that is, 1A When the area between the IB and the IB is used, the network side does not add the Cell B to the active set of the UE, that is, the uplink and downlink of the base station in the Cell B are not established for the UE. The base station in the cell B does not receive the uplink data sent by the UE, and the RNC cannot perform macro-diversity aggregation on the uplink data uploaded by the same UE in the two cells.

However, due to the uplink load imbalance, uplink and downlink imbalance, or cell transmit power of the cells of Cell A and Cell B, the uplink of the base station in Cell B is also caused when the UE is still outside the softswitch area in Cell A. The signal-to-noise ratio is higher than the uplink signal-to-noise ratio of the base station in the UE and the Cell A. The core idea of the embodiment of the present invention is that the uplink signal-to-noise ratio of the base station in the Cell B is outside the softswitch area of the two cells. The uplink signal-to-noise ratio of the base station in the UE and the Cell A is higher than that of the base station in the Cell A. When the uplink channel quality is high, the network-side control UE and the base station in the Cell B establish an uplink cooperative link that only receives the uplink data sent by the UE, instead of The downlink is established for the UE and the base station in Cell B, thereby saving code channel resources without increasing the area of the soft handover area. The RNC on the network side can also perform macro-diversity aggregation on the data sent by the same UE received in the two cells, and improve the quality of the data that is uploaded and understood.

As shown in FIG. 2, based on the foregoing architecture, an embodiment of the present invention provides a radio link control method, which is applied to a first base station in a first cell (Cell B), where the method includes:

201. When a selected user equipment moves in the second cell toward the first cell, establish a selected user equipment in the second cell, outside the soft handover area of the first cell and the second cell. An uplink coordinated link, where the second cell and the first cell are neighboring cells, and the uplink cooperative link is used by the first base station in the first cell to receive the selected user equipment Uplink data;

Specifically, the selected user equipment is, for example, the UE in FIG. 1, the second cell is Cell A in FIG. 1, the base station in Cell A is the second base station, and the first cell is Cell B in FIG. The base station in Cell B is the first base station. Of course, this is only for convenience of description. When the UE moves from Cell B to Cell A, the second cell is changed to Cell B, and the first cell corresponds to Cell A. When the UE moves from Cell A to Cell B, when the uplink signal to noise ratio of the base station in the UE and the Cell B is greater than the uplink signal to noise ratio of the base station and the UE in the Cell A, the UE may be in the network layer and in the Cell B. The base station establishes an uplink cooperative link.

When multiple user equipments move from Cell A to Cell B, only the user equipment that meets certain conditions will be selected as the selected user equipment. For example, the quality of the uplink channel in Cell B is higher, or the downlink channel quality of the base station in Cell B is much higher than the downlink quality of the second base station in Cell A.

202. Receive, by using the uplink cooperative link, uplink data uploaded by the selected user equipment in the second cell.

Specifically, after the uplink cooperative link with the UE is established, the first base station receives the uplink sent by the UE device still in the cell A, after the uplink cooperative link with the UE is established by the RNC of the network layer, or the first base station, that is, the base station itself in the cell B. Data, but there is no downlink between the first base station and the UE, that is, the first base station does not send data to the UE.

203. Send the demodulated and decoded uplink data to the radio network controller, so that the radio network controller uses the uplink data and the user equipment to pass the second in the second cell. The uplink data uploaded by the base station is merged.

Specifically, after receiving the uplink data uploaded by the UE, the first base station in the cell B demodulates and decodes the uplink data, and uploads the decoded data to the RNC, and then the RNC compares the data with the data. The data uploaded by the UE received by the second base station in Cell A is selectively combined and then sent to the core network.

The above-mentioned radio link control method, when the selected user equipment moves toward the first cell in the second cell, outside the soft handover area of the first cell and the second cell, under the network side control Establishing an uplink cooperative link with a selected user equipment in the second cell, the first base station in the first cell receiving the selected user equipment in the second cell by using the uplink cooperative link Uploading the uplink data, and then transmitting the demodulated and decoded uplink data to the wireless network And a network controller, so that the radio network controller merges the uplink data with the uplink data uploaded by the user equipment by using the second base station in the second cell. The system can receive data sent by the user equipment in a cell with better uplink channel quality, so that the RNC can belong to an active set without expanding the soft handover area, and the first base station and the UE do not occupy the downlink code channel resources. The data sent by the same UE received in the cell is subjected to macro diversity combining.

In a first possible implementation manner of the first aspect of the present invention, the first base station in the cell B actively performs a neighboring user equipment search, and selects a user equipment with a good uplink quality searched by the first base station as The user equipment is selected, and then the uplink cooperative link between the user equipments is selected. That is to say, before the first base station establishes an uplink cooperative link with the selected user equipment, the method further includes:

301. Receive identifier information of a user equipment that is sent by a radio network controller.

Preferably, the RNC can instruct the scrambling code of the specific user equipment in the Cell A, the Dedicated Physical Control Channel (DPCCH) format, the Control Radio Network Controller (CRNC) ID, and the punching. The identification information that can identify the user equipment, such as a factor, is sent to the first base station in Cell B.

302. Search for an uplink channel quality parameter between the user equipment corresponding to the identifier information and the first base station in the second cell.

Specifically, the first base station searches for an uplink channel quality parameter of the user equipment corresponding to the foregoing parameter, for example, an uplink signal to noise ratio.

303. Select, as the selected user equipment, the user equipment whose uplink channel quality parameter meets a set threshold.

Specifically, the first base station meets the set threshold by the uplink channel quality parameter, for example, the user equipment that is higher than the set uplink channel ratio value is selected as the selected user equipment, and then establishes an uplink cooperative link with the foregoing, and then implements the foregoing The steps in the example are the same, not to repeat.

An advantage of this embodiment is that the right of the base station to establish an uplink cooperative link with the user equipment is controlled on the base station side, and the base station actively monitors. As shown in FIG. 4, in another scenario, especially in a macro network scenario, the transmit power of the base station in which the Cell A is a macro network is much higher than the transmit power of the base station of the Cell B micro-network, and therefore, The base station in the cell of the network actively searches for the user equipment to consume a large amount. Therefore, in another implementation manner, when the user equipment is outside the soft handover area of the cell A and the cell B (the area between B and C in the figure) in the second cell (cellA), if the UE finds the cell B in the A location. When the uplink channel quality meets the set threshold, the event is reported to the first base station in the cell B, and the first base station uses the user equipment reporting the event as the selected user equipment. Then, the first base station establishes an uplink cooperative link for the user equipment, and the subsequent steps are the same as steps 202 and 203 in FIG. 2, and details are not described herein.

That is, the first base station establishes an uplink cooperative link with the selected user equipment in the neighboring cell, and the selected user equipment is between the second cell and the base station of the first cell. When the downlink quality exceeds a set threshold, the base station of the second cell sends the notified user equipment to the radio network controller.

In this embodiment, power consumption of the micro-network base station can be avoided.

Corresponding to the above embodiment, after the user equipment is selected, after moving from the location where the event is reported to the soft handover area, the network side establishes a downlink with the first base station for the user equipment.

Correspondingly, when the user equipment moves from the cell B to the cell A, and moves from the soft handoff area to between B and A in FIG. 4, the network side cuts off the downlink between the user equipment and only the uplink cooperative link. .

As shown in FIG. 5, an embodiment of the present invention provides a method for controlling a radio link, where the main body of the method is a user equipment, in particular, a user equipment that moves from Cell A to Cell B, or moves from Cell B to Cell A. User equipment. In this embodiment, the UE moves from Cell A to Cell B as an example. Therefore, in this embodiment, the second cell is from Cell A, the first cell is from Cell B, and the base station in Cell B is the first base station, Cell. The base station in A is the second base station, and the method includes:

501. When the second cell moves toward the first cell, the UE establishes uplink cooperation with the first base station in the first cell, outside the soft handover area of the first cell and the second cell. The link, the second cell and the first cell are neighboring cells, and the uplink cooperative link is used by the first base station in the first cell to receive uplink data of the selected user equipment.

Specifically, in the scenario shown in FIG. 1, when the UE moves toward Cell B, when the UE moves to the set channel with the uplink channel quality of the base station in Cell B, the UE is still located at Cell A and The soft handover area of Cell B (the coverage area between 1A and 1B), the UE still establishes an uplink cooperative link with the base station in Cell B under the control of the network side RNC or the base station, and does not establish a downlink.

502. The UE sends uplink data to the first base station in the second cell by using the uplink cooperative link, so that the first base station sends the demodulated and decoded uplink data to the The radio network controller combines the uplink data with the uplink data uploaded by the user equipment by the second base station in the second cell.

Specifically, after the uplink cooperative link is established, the UE sends uplink data to the first base station in addition to the second base station in the Cell A that has the uplink and downlink links, but the first base station sends the uplink data to the first base station. There is no downlink between the UE and the UE, that is, the first base station does not send data to the UE. The first base station in the cell B, after receiving the uplink data uploaded by the UE, demodulates and decodes the uplink data, and uploads the decoded data to the RNC, and the RNC then uses the data in the Cell A. The data uploaded by the UE received by the second base station is selectively combined and then sent to the core network.

With the foregoing embodiment, when the second cell moves toward the first cell, the user equipment establishes and is in the second cell under the control of the network side outside the soft handover area of the first cell and the second cell. The uplink cooperative link between the selected user equipments in the first cell, the first base station in the first cell receives the uplink data uploaded by the user equipment in the second cell by using the uplink cooperative link, and then the solution Transmitting the decoded uplink data to the radio network controller, so that the radio network controller sends the uplink data and the user equipment to the uplink that is uploaded by the second base station in the second cell. The data is merged. The first base station and the UE can be occupied without expanding the soft handover area. When the downlink code channel resource is used, the data sent by the user equipment is received in the cell with better uplink channel quality, so that the RNC can perform macro on the data sent by the same UE that is not in the cell in one active set. Divide and combine.

In an implementation manner, the user equipment is in a passive state, and the first base station in the cell B actively performs the neighboring user equipment search, and selects the user equipment with good uplink quality searched by the first base station as the selected one. The user equipment, and then the uplink cooperative link between the user equipments is selected.

And when the second cell moves toward the first cell, establishing an uplink cooperative link with the first base station in the first cell, outside the soft handover area of the first cell and the second cell. And establishing an uplink cooperative link between the first base stations in the first cell when the uplink channel quality parameter of the selected user equipment and the first base station meets a set threshold.

In another implementation manner, in the scenario shown in FIG. 4, the user equipment is in the second cell (Cell A), and the soft handoff area of Cell A and Cell B (the area between B and C in the figure) If the UE finds that the uplink channel quality of the Cell B meets the set threshold in the A location, the UE reports the event to the first base station in the Cell B. The first base station uses the user equipment reporting the event as the selected user equipment. Thereafter, the first base station establishes an uplink cooperative link for the user equipment.

That is, when the second cell moves toward the first cell, the establishment is with the first base station in the first cell, outside the soft handover area of the first cell and the second cell. Before the uplink cooperative link, it also includes:

When the second cell moves toward the first cell, establishing an uplink cooperation chain with the first base station in the first cell outside the soft handover area of the first cell and the second cell Before the road is specifically:

After receiving the notification, the network establishes an uplink cooperative link between the base station in the neighboring cell of the first cell and the user equipment under the control of the radio network controller. As shown in FIG. 6, the embodiment of the present invention provides a base station, where the base station 600 includes: a link control unit 601, configured to: when a selected user equipment moves toward the first cell in the second cell, Establishing an uplink cooperative link with the selected user equipment in the second cell, and the second cell and the first cell are neighboring areas, outside the soft handover area of the first cell and the second cell. The uplink cooperative link is used by the first base station in the first cell to receive uplink data of the selected user equipment;

The receiving unit 602 is configured to receive uplink data uploaded by the selected user equipment in the second cell by using the uplink cooperative link.

The sending unit 603 is configured to send the demodulated and decoded uplink data to the radio network controller, so that the radio network controller passes the uplink data and the user equipment to the second cell. The uplink data uploaded by the second base station in the middle is merged.

In a possible implementation manner, the base station 600 may further include a user equipment search unit, configured to establish, on the link control unit, an uplink cooperative link with a selected user equipment in the second cell, where prior to:

In a possible implementation manner, the selected user equipment is a base station that passes the second cell when a downlink quality between a second cell and a base station of the first cell exceeds a set threshold. A user equipment that sends a notification to the wireless network controller.

As shown in FIG. 7 , an embodiment of the present invention provides a user equipment, where the user equipment 700 includes: a link control unit 701, configured to: when the second cell moves toward the first cell, in the Establishing a first base station in the first cell, outside the soft handover area of the first cell and the second cell An uplink cooperative link, where the second cell and the first cell are neighboring cells, and the uplink cooperative link is used by the first base station in the first cell to receive the selected user equipment The uplink data is used by the sending unit 702, by using the uplink cooperative link, to upload uplink data to the first base station in the second cell, so that the first base station performs demodulation and decoding. And transmitting, by the radio network controller, the uplink data to the uplink data that is uploaded by the user equipment by using the second base station in the second cell.

In an implementation manner, when the second cell moves toward the first cell, the link control unit 701 establishes and is in the first place outside the soft handover area of the first cell and the second cell. In the uplink cooperative link between the first base stations in the cell, when the uplink channel quality parameter of the selected user equipment and the first base station meets a set threshold, the first in the first cell is established. Uplink cooperative link between base stations.

In another possible implementation manner, when the UE is in the second cell, the sending unit 702 passes the second cell when the downlink quality of the UE and the first base station exceeds a set threshold. The base station sends a notification to the network side;

After the network receives the notification, the link control unit 701 establishes an uplink cooperative link between the base station in the neighboring cell of the first cell and the user equipment under the control of the radio network controller. ;

Correspondingly, please refer to FIG. 8 , which is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown, the base station includes a transmitter 82, a receiver 81, a memory 13, and a processor 84 coupled to the transmitter 82, the receiver 81, and the memory 83, respectively. Of course, the user equipment power-saving configuration device may further include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device, and the embodiment of the present invention is not limited thereto.

The memory 83 stores a set of program codes, and the processor 84 is configured to call the program code stored in the memory to perform the following operations:

When the selected user equipment moves in the second cell toward the first cell, in the first An uplink cooperative link with the selected user equipment in the second cell is established outside the soft handover area of the cell and the second cell, where the second cell and the first cell are neighboring areas, and the uplink cooperation is performed. The link is used by the first base station in the first cell to receive uplink data of the selected user equipment, and the uplink shared link is used to receive the selected user equipment in the second cell to upload Uplink data;

It should be noted that the configuration apparatus shown in FIG. 8 may be used to implement any of the methods provided by the foregoing method embodiments, and the specific power saving configuration request made to the user equipment is similar to the foregoing embodiment, and is no longer Narration.

Correspondingly, please refer to FIG. 9, which is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown, the user equipment includes a transmitter 92, a receiver 91, a memory 93, and a processor 94 coupled to the transmitter 92, the receiver 91, and the memory 93, respectively. Of course, the user equipment may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device. The embodiment of the present invention is not limited herein.

The memory 93 stores a set of program codes, and the processor 94 is configured to call the program code stored in the memory to perform the following operations:

And uploading uplink data to the first base station in the second cell by using the uplink cooperative link, so that the first base station sends the demodulated and decoded uplink data to the wireless network control. The radio network controller passes the uplink data and the user equipment through the second small The uplink data uploaded by the second base station in the area is merged.

It should be noted that the user equipment shown in FIG. 9 may be used to implement any of the methods provided by the foregoing method embodiments, and is similar to the foregoing embodiment, and details are not described herein again.

According to the radio link control method provided by the embodiment of the present invention, when the selected user equipment moves toward the first cell in the second cell, outside the soft handover area of the first cell and the second cell, Establishing an uplink cooperative link with a selected user equipment in the second cell, and the first base station in the first cell receives the And selecting the uplink data uploaded by the user equipment, and then sending the demodulated and decoded uplink data to the radio network controller, so that the radio network controller passes the uplink data and the user equipment. The uplink data uploaded by the second base station in the second cell is merged. The system can receive data sent by the user equipment in a cell with better uplink channel quality, so that the RNC can belong to an active set without expanding the soft handover area, and the first base station and the UE do not occupy the downlink code channel resources. The data sent by the same UE received in the cell is subjected to macro diversity combining.

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field Any other form of storage medium known. The above described embodiments of the present invention are further described in detail, and the embodiments of the present invention are intended to be illustrative only. The scope of the protection, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

claims

1. A radio link control method, characterized in that it is applied to the first base station in the first cell, and the method includes:

When the selected user equipment moves toward the first cell in the second cell, outside the soft handover area of the first cell and the second cell, a connection is established with the selected user equipment in the second cell. The uplink cooperation link, the second cell and the first cell are adjacent cells, and the uplink cooperation link is used for the first base station in the first cell to receive the uplink of the selected user equipment. Data; receiving uplink data uploaded by the selected user equipment in the second cell through the uplink cooperation link;

Send the demodulated and decoded uplink data to the radio network controller, so that the radio network controller uploads the uplink data and the user equipment through the second base station in the second cell The upstream data is merged.

2. The radio link control method according to claim 1, wherein establishing an uplink cooperative link with the selected user equipment in the second cell also includes:

Receive the identification information of the user equipment issued by the wireless network controller;

Search for uplink channel quality parameters between the user equipment corresponding to the identification information in the second cell and the first base station;

3. The radio link control method according to claim 1, wherein in the establishment of an uplink cooperative link with a selected user equipment in a neighboring cell, the selected user equipment is in the first When the downlink quality between the second cell and the base station of the first cell exceeds the set threshold, the user equipment sends a notification to the radio network controller through the base station of the second cell.

4. The radio link control method according to claim 3, further comprising: when the selected user equipment is in the soft handover area of the first cell and the second cell to the second cell. community When moving, at the edge of the soft handover area, the downlink between the selected user equipment and the first base station is cut off, and the uplink cooperation link between the first base station and the selected user equipment is retained. road.

5. A wireless link control method, characterized in that the method includes:

When the second cell moves toward the first cell, outside the soft handover area of the first cell and the second cell, establish an uplink cooperative link with the first base station in the first cell, The second cell and the first cell are adjacent cells, and the uplink cooperative link is used for the first base station in the first cell to receive uplink data of the selected user equipment;

Uplink data is uploaded to the first base station in the second cell through the uplink cooperative link, so that the first base station sends the demodulated and decoded uplink data to the wireless network control The radio network controller combines the uplink data with the uplink data uploaded by the user equipment through the second base station in the second cell.

6. The radio link control method according to claim 5, wherein when the second cell moves toward the first cell, outside the soft handover area of the first cell and the second cell, In establishing an uplink cooperative link with the first base station in the first cell, when the uplink channel quality parameters of the selected user equipment and the first base station meet a set threshold, establish the first base station in the first cell. The uplink cooperative link between the first base stations in the cell.

7. The radio link control method according to claim 5, wherein when the second cell moves toward the first cell, the soft handover area between the first cell and the second cell In addition, before establishing the uplink cooperative link with the first base station in the first cell, it also includes:

In the second cell, when the downlink quality with the first base station exceeds the set threshold, a notification is sent to the network side through the base station of the second cell;

When the second cell moves toward the first cell, outside the soft handover area of the first cell and the second cell, an uplink cooperation link with the first base station in the first cell is established. The details before the road are:

After receiving the notification, the network, under the control of the radio network controller, provides the first An uplink cooperative link is established between the base station in the neighboring cell of the cell and the user equipment.

8. A base station, characterized in that, the base station includes:

A link control unit configured to establish and be in the second cell outside the soft handover area of the first cell and the second cell when the selected user equipment moves toward the first cell in the second cell. The uplink cooperation link between selected user equipments, the second cell and the first cell are adjacent cells, and the uplink cooperation link is used for the first base station in the first cell to receive Describe the uplink data of the selected user equipment;

A receiving unit configured to receive uplink data uploaded by the selected user equipment in the second cell through the uplink cooperation link;

A sending unit, configured to send the demodulated and decoded uplink data to the radio network controller, so that the radio network controller can pass the uplink data and the user equipment through the second cell. The uplink data uploaded by the second base station is merged.

9. The base station method according to claim 8, further comprising a user equipment search unit configured to establish an uplink cooperation link between the link control unit and the selected user equipment in the second cell. road, before:

10. The base station according to claim 8, wherein the selected user equipment passes the selected user equipment when the downlink quality between the second cell and the base station of the first cell exceeds a set threshold. The base station of the second cell sends a notification to the user equipment of the radio network controller.

11. A user equipment, characterized by: including:

A link control unit configured to: when the second cell moves toward the first cell, Outside the soft handover area of the first cell and the second cell, establish an uplink cooperative link with the first base station in the first cell, the second cell and the first cell are neighboring cells, and the uplink The cooperation link is used for the first base station in the first cell to receive uplink data of the selected user equipment; a sending unit is used to transmit data to all the users in the second cell through the uplink cooperation link. The first base station uploads uplink data, so that the first base station sends the demodulated and decoded uplink data to the wireless network controller. The wireless network controller combines the uplink data with the user equipment. The uplink data uploaded by the second base station in the second cell is combined.

12. The user equipment according to claim 11, wherein the link control unit is specifically configured to: when the second cell moves toward the first cell, between the first cell and the second cell Outside the soft handover area, in establishing an uplink cooperative link with the first base station in the first cell, when the uplink channel quality parameters of the selected user equipment and the first base station meet the set threshold, Establish an uplink cooperative link between the first base stations located in the first cell.

13. The user equipment according to claim 11, characterized in that the sending unit is further configured to: in the second cell, when the downlink quality with the first base station exceeds a set threshold, through the The base station of the second cell sends a notification to the network side;

The link control unit is specifically configured to: after the network receives the notification, under the control of the radio network controller, establish a connection between the base station in the neighboring cell of the first cell and the user equipment. Uplink collaboration link;

14. A base station, characterized in that it includes: a transmitter, a receiver, a memory, and a processor connected to the transmitter, the receiver, and the memory respectively;

A set of program codes is stored in the memory, and the processor is used to call the program codes stored in the memory to perform the following operations:

When the selected user equipment moves toward the first cell in the second cell, outside the soft handover area of the first cell and the second cell, a connection is established with the selected user equipment in the second cell. an uplink cooperative link, the second cell and the first cell are neighboring cells, the uplink cooperative link The first base station in the first cell receives the uplink data of the selected user equipment; and receives the uplink data uploaded by the selected user equipment in the second cell through the uplink cooperative link. data;

15. A user equipment, characterized in that it includes: a transmitter, a receiver, a memory, and a processor connected to the transmitter, the receiver, and the memory respectively;