WO2010017660A1

WO2010017660A1 - Method and device of multimedia broadcast multicast service coordinated by multi base stations in single cell transmission mode

Info

Publication number: WO2010017660A1
Application number: PCT/CN2008/001469
Authority: WO
Inventors: 王河; 胡中骥; 汪勇刚; 张碧军
Original assignee: 上海贝尔股份有限公司; 阿尔卡特朗讯
Priority date: 2008-08-15
Filing date: 2008-08-15
Publication date: 2010-02-18
Also published as: CN102067713B; CN102067713A

Abstract

For increasing the MBMS capability of cell edge users in single cell transmission mode, the present invention provides that: base station reporting multi base stations coordination information between the base station and the coordination base station and MBMS state information to the coordination control server; the coordination control server confirming the multi base stations coordination mode between the base stations and their coordination base station and the MBMS coordination providing state information according to the multi base stations coordination information and the MBMS state information of each base station; each base station and its coordination base station providing MBMS to user equipments according to the multi base stations coordination mode and the MBMS coordination providing state information. By the present invention, multi cell base stations could coordinate to provide MBMS in single cell transmission mode, therefore the cell edge user equipments are ensured to obtain the combination gain of the combination of coordination service of multi cells, then the better MBMS capability could be obtained.

Description

Multi-base station cooperation in single cell transmission mode

Method and device for broadcasting multicast service

The present invention relates to a wireless communication network, and more particularly to a method and apparatus for cooperatively providing broadcast and/or multicast services in a single cell transmission mode in a single cell transmission mode.

Nowadays, broadcast and/or multicast services such as Enhanced Multimedia Broadcast Multicast Service (eMBMS) are becoming more and more widely used in wireless communication networks. In eMBMS, two broadcast transmission modes are defined, which are a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) and a Single Cell Transmission Mode (SC-PTM). . The MBSFN transmission mode requires that each cell base station simultaneously transmits the MBMS service using the same time-frequency resource, so that the signals of the MBMS services of the respective cells can be naturally superimposed on each other in the air, and the radio frequency (RF) combining gain is provided to the user equipment, so that Receiving and extracting MBMS service data; the single cell transmission mode is not limited to this, and has greater flexibility. However, when the single cell transmission mode is used, there is interference from the neighboring cell; at the same time, the radio frequency combining gain similar to that in the MBSFN cannot be obtained, and thus the service performance of the cell edge user is affected to some extent.

In the 3GPP standardization, new performance requirements are proposed for broadcast and/or multicast services such as Multimedia Broadcast Multicast Service (MBMS), that is, the broadcast service performance of the cell edge user should be the same as the unicast service. . Since MBMS is a broadcast-based service, its performance depends on the broadcast quality of users at the cell edge. In IMT-Advance, the unicast performance of cell edge users has been improved by some enhancement methods. Therefore, in the single cell transmission mode, improving the performance of the MBMS and improving the quality of service of the cell edge users has become an important issue. At present, there is no solution to this problem in the industry. Summary of the invention

To make up for the gaps in the prior art, improve the cell edge users in the single cell transmission mode.

MBMS service performance, the present invention proposes that the base station reports the multi-base station cooperation information and the broadcast and/or multicast service status information to the control server; the multi-base station cooperation control server is based on the respective base station cooperation information and broadcast and/or multiple Broadcasting service status information, determining a multi-base station cooperation mode of each base station and its coordinated cell base station, providing state information in cooperation with broadcast and/or multicast services, and providing the same to each base station and the coordinated cell base station; and then, the base station and its coordinated cell The base station provides status information to provide broadcast and/or multicast services to the user equipment in cooperation with the broadcast and/or multicast services according to the multi-base station cooperation mode.

According to an aspect of the present invention, a base station in a wireless communication network is provided for assisting one or more user equipments of a serving cell under the jurisdiction of the base station to provide broadcast based on multi-base station cooperation in a single cell transmission mode. And a method for multicasting services, comprising: the following steps: i. acquiring neighbor cell communication quality information between respective ones of the one or more user equipments and base stations of neighboring cells of the user equipment, and acquiring the The local cell communication quality information between the one or more user equipments and the local base station; ii. determining the multiple base stations according to the neighboring cell communication quality information of the one or more user equipments and the current cell communication quality information Collaborating information, and determining provision status information of the broadcast and/or multicast service of the cell under the control of the base station; iii. determining the determined multi-base station cooperation information, and determining the determined cell of the base station The broadcast and/or multicast service status information is sent to the multi-base station cooperative control server.

According to another aspect of the present invention, a multi-base station cooperative control server in a wireless communication network is provided for assisting in providing a single cell transmission mode to one or more user equipments of a serving cell of a respective one or more base stations A method for broadcasting and/or multicast services based on multi-base station cooperation, comprising the steps of: I. receiving respective multi-base station cooperation information from the one or more base stations, broadcasting with a serving cell under its jurisdiction And/or multicast service status information; 确定 determining the one or more according to the respective multi-base station cooperation information of the one or more base stations, broadcast and/or multicast service status information of the serving cell under its jurisdiction The multi-base station cooperation mode of the base station and its coordinated cell base station, Providing status information in cooperation with the broadcast and/or multicast service; III. transmitting the multi-base station cooperation mode, the cooperation providing status information of the broadcast and/or multicast service to the corresponding one or more Base stations and their cooperating cell base stations.

According to a third aspect of the present invention, a method for providing a user equipment with a broadcast and/or multicast service based on multi-base station cooperation in a single cell transmission mode in a base station of a wireless communication network is provided, wherein The method includes: a, receiving a multi-base station cooperation mode from a multi-base station cooperative control server, providing state information in cooperation with the broadcast and/or multicast service; b. according to the multi-base station cooperation mode, and the broadcast and/or The collaboration of the multicast service or the provisioning status information provides the broadcast and/or multicast service to the user equipment.

According to a fourth aspect of the present invention, a base station in a wireless communication network is provided for assisting one or more user equipments of a serving cell under the jurisdiction of the base station to provide multi-base station cooperation in a single cell transmission mode. And a device for broadcasting and/or multicasting, where: the first acquiring means, configured to acquire neighbor cell communication quality information between respective base stations of the one or more user equipments and neighboring cells of the user equipment And acquiring the local cell communication quality information between the one or more user equipments and the local base station; the first determining means, configured to: according to the neighboring cell communication quality information of the one or more user equipments Determining, by the communication quality information of the local cell, the multi-base station cooperation information, and determining the providing status information of the broadcast and/or multicast service of the cell under the control of the base station; the first sending device, configured to use the determined multiple base station Coordinating information, and transmitting the broadcast and/or multicast service status information of the determined cell of the base station to the multi-base station cooperative control service Device.

According to a fifth aspect of the present invention, a multi-base station cooperative control server in a wireless communication network is provided for assisting one or more user equipments of respective serving cells of one or more base stations to be provided in a single cell An apparatus for broadcasting and/or multicasting services based on multi-base station cooperation in a transmission mode, comprising: a first receiving apparatus, configured to receive respective multi-base station cooperation information from the one or more base stations, Broadcasting and/or multicast service status information of the serving cell; second determining means for broadcasting and/or multicasting services of the serving cell under its jurisdiction according to respective multi-base station cooperation information of the one or more base stations State information, determining each of the one or more base stations with their coordinated cells a multi-base station cooperation mode of the base station, providing state information in cooperation with the broadcast and/or multicast service; a second sending device, configured to cooperate with the broadcast and/or multicast service in the multi-base station cooperation mode The providing status information is sent to the corresponding one or more base stations and their coordinated cell base stations.

According to a sixth aspect of the present invention, there is provided apparatus, in a base station of a wireless communication network, for providing, to a user equipment, a broadcast and/or multicast service based on multi-base station cooperation in a single cell transmission mode, wherein a second receiving device, configured to receive a multi-base station cooperation mode from the multi-base station cooperative control server, to provide status information in cooperation with the broadcast and/or multicast service; and a broadcast multicast service providing device, configured to The multi-base station cooperation mode, in cooperation with the broadcast and/or multicast service, provides status information to provide the broadcast and/or multicast service to the user equipment.

The invention enables coordinated cooperation of multiple cell base stations in a single cell transmission mode

The MBMS service ensures that the cell edge user equipment can receive the MBMS service data coordinated by multiple cell base stations, and combines the multiple channels of data to obtain the combining gain, thereby improving the processing performance such as demodulation and decoding, and then obtaining Better MBMS service performance. The invention has a great enhancement to IMT-Advance and has a good prospect. DRAWINGS

Other features, objects, and advantages of the present invention will become more apparent from the detailed description of the accompanying drawings.

FIG. 1 is a schematic diagram of a network topology in which a user equipment (User Equipment, UE for short) 4a and 4b belonging to a base station la receives a base station la, lb and a base station 3 to provide MBMS according to an embodiment of the present invention;

2 shows a flow chart of a method for a base station la, a multi-base station cooperative server 2, and a base station 3 to assist the UEs 4a and 4b in accepting the base station la and the base station 3 to cooperate to provide an MBMS, in accordance with an embodiment of the present invention;

FIG. 3 shows a block diagram and a workflow of an apparatus for a base station 1a, a multi-base station cooperation server 2, and a base station 3 to assist the UEs 4a and 4b in accepting the base station 1 a to cooperate with the base station 3 to provide an MBMS according to another embodiment of the present invention. In the figures, the same or similar reference numerals denote the same or similar components. detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to Figures 1 to 2, a specific embodiment of the present invention will be described in detail from the perspective of a system method:

First embodiment

1 is a schematic diagram of a network topology in which UEs 4a and 4b belonging to a base station (or Node B) la receive base stations la, lb and base station 3 to provide MBMS, in accordance with an embodiment of the present invention. The UEs 4a and 4b are located at the edge of the cell under the control of the base station 1a, and are also in the coverage of the base station 3 and the base station lb; the UE 4c is at the edge of the cell under the control of the base station 1b, which is still within the coverage of the base station 1a; The cells of the base stations la, lb and the base station 3 are in a hybrid cell cluster (a cell cluster composed of cells providing unicast and broadcast multicast services) using a single cell transmission mode, and the cell clusters further belong to the same service area. (Service Area); the wireless communication network further includes a multi-base station cooperation server 2, which can be integrated in a multi-cell/multicast coordination entity (MCE) of the wireless network, The MCE may be an independent network device, or may be integrated in the base station, and communicate with the existing M2 interface between the base station la, lb and the base station 3 based on the MCE and the base station; the wireless communication network further includes An MBMS gateway (not shown) for providing MBMS service data to base stations la, lb and base station 3 via the M1 interface Each base station in the present embodiment, only one cell administer embodiment. It can be understood that the present invention is not limited to the network topology and device configuration shown in FIG. 1, and the present invention is also used under other topology and device configurations. Moreover, the present invention is not limited to multi-base station cooperation to provide MBMS services, but may be adapted to provide any other broadcast and/or multicast services.

2 shows a flow chart of a method for a base station la, a multi-base station cooperating server 2, and a base station 3 to assist the UEs 4a and 4b in accepting the base station la and the base station 3 to cooperate to provide MBMS services, in accordance with an embodiment of the present invention.

1 and 2, according to the present invention, the base station la, the multi-base station cooperation server 2, and the base station 3 assist the UEs 4a and 4b to receive the base station la and the base station 3 to cooperate to provide the MBMS industry. The method of doing business is detailed.

First, in step S10, the base station 1a obtains the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b, and acquires the communication quality of the local cell between the UEs 4a and 4b and the local base station 1a. information.

Specifically, in one case, based on the single cell transmission service, the base station la may broadcast a measurement control message to the UE to which the MBMS service belongs. The measurement control message may include information such as a measurement object, a report rule, and the like, and the measurement object may include a channel quality indicator (CQI) of the base station to the user equipment, and a received signal received power of a neighboring cell of the user equipment. (RSRP) and so on.

Then, through the broadcast measurement control message, the base station la instructs each UE to measure the channel quality to which the base station to which it belongs, and feeds back the channel quality back to the base station to which it belongs. Therefore, the UEs 4a and 4b at the cell edge will use a certain measurement mode, for example, the preamble (Preamble), the pilot, and the like in the downlink signal sent by the base station la, and the downlink communication shield of the base station la to the base station la is measured. The amount, such as signal to noise ratio, signal to noise ratio, etc., is provided to the base station la.

And, the base station la indication also instructs each UE to measure the received signal reception power of its neighboring cells. Since the UEs 4a and 4b are at the cell edge, they may also be in the coverage of the signals of the base stations of the neighboring cells, such as the base station 3 and the base station lb, which are also measured by the reference symbol received power (RSRP) of the neighboring cells. The downlink communication quality between the base station lb of the neighboring cell and the base station 3 is provided to the base station la.

It is worth noting that the present invention is mainly directed to improving the MBMS service performance of UEs in the cell edge zone, so that UEs in the cell center zone are not required to provide their communication quality information, and their communication quality is not useful for multi-base station cooperative MBMS. In order to avoid the congestion of the uplink signal in the cell, the base station 1a may set the threshold of the report in the reporting rule of the measurement control message, and the UE only receives the adjacent cell signal, and the signal quality is greater than the set. After the report is wide, the communication quality between the neighboring base station and the base station to which the UE belongs is reported to the associated base station. Moreover, in consideration of the mobility of the UE, in order to avoid the ping-pong effect and reduce the signal cost, the present invention can also set the lag mechanism to improve the measurement accuracy. In another case, in a symmetric channel, or an estimable asymmetric channel, the base station 1a can determine the signal quality of the base station la to the downlink channels of the UEs 4a and 4b based on the uplink signals of the UEs 4a and 4b; The base station 3 and the base station 1b of the neighboring cell with 4b can determine the downlink channel quality of the base station 3 and the base station lb to the UE 4a and 4b devices according to the uplink signals to the UE 4a and 4b, respectively, and provide the channel quality to the base station. La.

In step S10, the base station 1a obtains the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b, and acquires the local cell between the UEs 4a and 4b and the local base station 1a. Communication quality information.

Next, in step S11, the base station 1a determines the multi-base station cooperation information according to the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b and the local cell communication quality information between the base station 1a, And determining the providing status information of the broadcast and/or multicast service of the cell under the control of the base station la.

Specifically, the base station la determines, according to the neighboring cell communication quality information of the UEs 4a and 4b, one or more neighboring cells in which the communication quality is good is a coordinated cell. For example, the selection may be performed according to the maximum and maximum principle (Max & Most), and the number n of coordinated cells is determined, that is, the n phases that cover the UEs in the own cell and have the best communication quality with the neighboring cells between the coverage UEs. The neighboring cell can serve as a coordinated cell of the base station. In this embodiment, it is considered that the RSRP of the base station 3 to the UE 4a is greater than the RSRP of the base station lb to the UE 4b, and the cell number threshold is 2, the base station 1a can use the cell of the base station 3 and the base station 1b as its coordinated cell, and the base station 3 With the base station lb as its cooperative base station. It should be noted that in an actual network, the number of UEs may be greatly increased, and the threshold number of coordinated cells may also change. The policy of selecting a coordinated cell may also be different from the maximum and maximum principles described above, and those skilled in the art may Appropriate adjustments are made depending on the implementation, but this is within the scope of the present invention.

In the same time, in a case, the base station 1a further determines, according to the communication quality information of the communication quality of the UEs of the UEs 4a and 4b, such as the lowest CQI, the modulation and coding mode of the base station la to provide the MBMS service to the UE under the jurisdiction, The UE that guarantees the worst communication quality can also extract the MBMS service data from the received signal processed by the modulation and coding method. The related information of the selected coordinated cell and the determined modulation and coding mode of the MBMS service provided by the local base station 1a may constitute the foregoing multi-base station cooperation information.

In the other case, the base station la uses the communication quality information of the communication quality of the UEs 4a and 4b and the information of the selected coordinated cell as the multi-base station cooperation information. In this case, the multi-base station collaboration server assists in the selection of the modulation and coding scheme of the MBMS.

It should be noted that in this embodiment, UEs 4a and 4b are adjacent to only one adjacent cell, respectively. It can be understood that, in other topology structures or actual networks, the user equipment can be in the coverage of multiple neighboring cell base stations at the same time, and the base station to which the user equipment belongs can obtain the communication quality of each neighboring cell to the user equipment. Such a situation is also within the scope of the invention and the scope of the claims.

In addition, the base station la further determines the providing status information of the MBMS service of the cell under its jurisdiction. Specifically, the providing status information may include the sequence number of the MBMS service currently transmitted by the base station 1a, which may facilitate synchronization of the multi-base station cooperation server. The transmission of MBMS packets.

Next, in step S12, the base station la transmits the determined multi-base station cooperation information to the multi-base station cooperation control server 2 with the MBMS status information of the cell under the control of the base station la. Specifically, the M2 interface between the existing MCE and the base station may be extended and reused to transmit the information to the multi-base station cooperative control server 2.

Similar to the above steps, the base station LB may also determine, according to the cell edge UE 4c under its jurisdiction, that the cell under the control of the base station la is its coordinated cell, and transmit the multi-base station cooperation information and the MBMS service status information of the managed cell. The multi-base station is cooperatively controlled by the server 2. It should be noted that if the cell clusters to which the base stations la, lb, and the base station 3 belong include other base stations that assist the local cell to perform MBMS, the similar steps are also performed, and the multi-base station cooperation information and the MBMS provide status information. It is sent to the multi-base station cooperation control server 2.

Then, in step S20, the multi-base station cooperative control server 2 receives the respective multi-base station cooperation information from the base station 1a and the base station 1b, and the MBMS service status information of the serving cell under its jurisdiction. Next, in step S21, the multi-base station cooperative control server 2 determines the base station 1a and the base station 1b and its neighboring cell base station based on the respective base station cooperation information of the base station 1a and the base station 1b, and the MBMS service status information of the serving cell under its jurisdiction. The respective multi-base station cooperation mode provides cooperation with the MBMS service to provide status information.

In one case, the multi-base station cooperation information of the base station la and the base station 1b includes their respective determined coordinated cell information, and provides a modulation coding scheme of the MBMS.

Since a plurality of base stations participating in the multi-base station cooperative MBMS need to use the same Modulation and Coding Scheme (MCS), the multi-base station cooperative control server 2 provides the modulation coding of the MBMS from the base station 1a and the base station 1b in step S210. The mode selects the lowest communication capability, for example, the modulation coding mode with the lowest information rate as the common cooperative modulation coding mode of the base station 1a and the base station 1b, so as to ensure that the UE with the worst communication quality can also be processed from the signal processed according to the cooperative modulation and coding mode. Extract MBMS service data. Specifically, the multi-base station cooperative control server 2 sets the base stations la, lb and the base station 3 to use the same MCS.

In another case, the multi-base station cooperation information of the base station la and the base station 1b includes its respective determined coordinated cell information, and the worst local cell communication quality information of the base station la and the base station 1b.

Due to the same principle, the multi-base station cooperative control server 2 needs to determine a common cooperative modulation coding mode according to each of the worst communication qualities. Specifically, when the base station and the base station of the coordinated cell simultaneously send the MBMS to the UE, the UE can obtain the combining gain, so that higher communication quality can be equivalently obtained. According to this principle, in step S210', the multi-base station cooperation control server 2 can comprehensively consider the communication quality of each coordinated cell in each coordinated cell information to each UE, and the communication quality of each base station to each UE, using a certain algorithm. For example, determining the equivalent communication path quality to the UE according to the multi-channel communication quality between the base station and the cooperative base station to the UE, and then determining a suitable common cooperative modulation and coding mode according to the worst equivalent communication path quality in each UE. In order to ensure that the UE with the worst communication quality is the worst, the UE can also extract the MBMS service data from the received signal processed by the common modulation and coding method. . The specific determination of the common modulation coding mode algorithm is not within the scope of the present invention, and one of ordinary skill in the art can Technology to achieve this.

In addition, in step S211, the multi-base station cooperative control server 2 determines, for the base station 1a and the base station 1b and its coordinated cell base station, its respective communication resources for providing the MBMS service, wherein the coordinated cell base station of the base station 1a is the base station 3 and the base station lb; The cooperative cell of lb is the base station la. The multi-base station cooperation control server 2 can perform communication resource allocation based on the following two methods:

(1) A single-frequency network, in which the multi-base station cooperative control server 2 allocates the same MBMS signal for the same time/frequency resource block for the base stations la, lb and the base station 3 operating in the single-cell transmission mode. . The signals of the MBMS services of the respective cells can be naturally superimposed on each other in the air, and the radio frequency (RF) combining gain is provided to the user equipment, so that the UE at the cell edge of the single cell transmission mode can obtain the combining gain. Specifically, the multi-base station cooperative control server 2 interacts with each base station to obtain a resource allocation situation, and finally determines a common time/frequency resource.

(2) Soft combining In this mode, it is not necessary to allocate the same time/frequency resource block to the base station la, lb and the base station 3, and each cell transmits the MBMS according to its own state using an appropriate time/frequency resource. The UE can obtain multiple signals and perform Maximum Ratio Combination (MRC) to obtain soft combining gain. Specific soft combining techniques are well known to those of ordinary skill in the art and will not be described in detail herein. This resource allocation method may cause some interference to UEs that neighbor cells use to communicate with the same transmission resource.

The multi-base station cooperation mode includes determining a cooperative modulation coding mode, and communication resources for providing MBMS services with a plurality of base stations and their cooperating cell base stations.

In addition, in the step S212, the multi-base station cooperation control server 2 determines the cooperation providing status information of the MBMS service. Specifically, the MBMS service status information provided by the base stations 1a, 1b includes the corresponding base station, and is not related to the foregoing S210 or S210' and S211. The packet number of the MBMS transmitted at that time; the multi-base station cooperative control server 2 can also obtain the packet number of the MBMS being transmitted by the base station 3. Then, according to the data packet sequence number of the current MBMS provided by each base station, it is determined that each base station starts to cooperate to start the MBMS transmission starting point, for example, the starting sequence number and the starting time of the data packet, and the starting sequence number should be compared to each base station. All the serial numbers transmitted at that time are large, and the start time should be the same under the condition of the single-frequency network, and the start time can be different under the soft combining condition. The collaboration providing status information may further include information such as a transmission period of the data packet.

It is to be noted that the multi-base station cooperative control server 2 may select a part of the base station actually participating in the cooperation from the cooperative base station provided by the base station 1a and the base station 1b according to a certain policy, for example, according to the state of the MBMS service provision of each coordinated cell at that time, without The collaborative approach must be determined exactly in accordance with the cooperative base stations it provides.

Then, in step S22, the multi-base station cooperative control server 2 transmits the determined multi-base station cooperation mode and the cooperative provision status information for determining the MBMS service to the corresponding base stations la, lb and the coordinated cell base station 3 through the M2 interface. The following will be explained from the perspective of the base station 3, and it is apparent that the operations performed by the base stations la and lb are similar.

It can be understood that, since the base station has the right to decide on the data communication in the cell under the jurisdiction, the multi-base station cooperative control server 2 preferably also negotiates with each base station to determine whether the base station is unified according to the multi-base station cooperation mode, and the MBMS service. Collaboration provides status information to provide MBMS services. Preferably, each base station also cooperates with the MBMS to provide status information according to the multi-base station cooperation mode provided by the multi-base station cooperation control server 2, makes a decision whether to participate in multi-base station cooperation, and feeds back its decision back to the multi-base station cooperation control server 2. In this case, correspondingly, the multi-base station cooperative control server 2 and each base station should also perform the above-mentioned steps of negotiating and making decisions, and the present invention will not be further described in detail.

In step S30, the base station 3 receives the multi-base station cooperation mode from the multi-base station cooperation control server 2, and provides state information in cooperation with the MBMS service.

Specifically, the multi-base station cooperation mode includes a cooperative modulation and coding mode, and a communication resource that provides MBMS, such as a time-frequency resource.

The cooperation of the MBMS service provides status information including the starting sequence number and start time of the data packet for transmitting the MBMS service.

Then, in step S31, the base station 3 performs modulation and coding processing on the data packet of the MBMS service according to the cooperative modulation and coding mode, and uses the time-frequency resource, starting from the data packet of the MBMS service corresponding to the start sequence number. The MBMS service is provided to the UE. The MBMS service data can be obtained from the MBMS gateway by the base station 3 in advance through the M1 interface.

Similarly, in steps S13 and S14, the base station la provides the MBMS service to the UE according to the multi-base station cooperation mode provided by the multi-base station cooperation control server 2, and the cooperation of the MBMS service provides status information. The base station lb also performs similar operations.

Of course, the process of providing MBMS may still require the base station to interact with the UE to inform the UE how to receive the MBMS signals sent by multiple base stations. This is well known to those of ordinary skill in the art and will not be described in detail herein.

Finally, for the UE 4a, it receives the MBMS signals from both the associated base station la and the base station 3, and performs corresponding combining processing to obtain MBMS service data. Similarly, UEs 4b and 4c also achieve MBMS performance enhancements in cooperation with base station la and base station lb. With the present invention, the MBMS service performance of the cell edge user equipment in the single cell transmission mode is improved.

It should be noted that, in the foregoing embodiment, since the base stations la, lb, and 3 are in mutually adjacent positions, and the MBMS services affect each other, the multi-base station cooperative control server 2 selects a common modulation and coding mode for each base station, MBMS. Collaborate to provide status information and more. It can be understood that the multi-base station cooperative control server 2 serves multiple groups of cells in the cell cluster, and the multiple groups of cells do not affect each other at the same time, for example, when the groups are far apart, and the MBMS services of each group do not affect each other, It should be a multi-base station cooperation mode for determining the group of cells in each group of cells, including a common modulation and coding mode, a resource allocation mode, and the like. This is also within the scope of the claims of the present invention.

It can be understood that the above multi-base station cooperation relationship can be dynamically changed. When the cooperative shield between the base station and its neighboring cells changes, the above steps can be re-executed. In order to obtain a better multi-base station cooperation mode in real time, a better multi-base station cooperation service is provided to the user equipment. The specific embodiments of the system method according to the present invention have been described in detail above. Specific embodiments of the present invention will be described in detail below from the perspective of system devices.

Second embodiment 1 is a schematic diagram of a network topology in which UEs 4a and 4b belonging to a base station la receive base stations la, lb and base station 3 to provide MBMS according to an embodiment of the present invention. 3 is a block diagram and a workflow diagram of an apparatus for a base station la, lb, a multi-base station cooperation server 2, and a base station 3 to assist the UEs 4a and 4b in accepting the base station la and the base station 3 to cooperate to provide an MBMS, in accordance with another embodiment of the present invention.

As shown in the figure, in the present embodiment, the base station 1a includes means 10 for assisting the UEs 4a and 4b under its jurisdiction to provide MBMS services based on multi-base station cooperation in a single cell transmission mode, wherein the first acquisition means is included 100. The first determining device 101 and the first transmitting device 102. The first determining device 101 may further include a coordinated cell determining device 1010, and optionally a modulation and coding mode determining device 1011. The base station lb includes a device similar to the base station la. The multi-base station cooperation server 2 includes means 20 for assisting the user equipment of the serving cell of each of the base stations la, lb to provide MBMS based on multi-base station cooperation in the single cell transmission mode, wherein the first receiving apparatus 200 is included The second determining means 201 and the second transmitting means 202; the second determining means 201 may further comprise a first cooperative modulation and encoding determining means 2010 and a communication resource determining means 2011. The base station 3 comprises means 30 for providing MBMS services based on multi-base station cooperation in a single cell transmission mode to the user equipment, wherein the second receiving means 300 and the broadcast multicast service providing means 301 are included. Base station la and base station lb may also preferably include similar second receiving devices and broadcast multicast service providing devices to provide multi-base station cooperative MBMS services.

First, the first obtaining apparatus 100 of the device 10 of the base station 1a obtains the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b, and acquires the respective between the UEs 4a and 4b and the base station la. Communication quality information of the community.

Specifically, in one case, based on the single cell transmission, the first obtaining device 100 may broadcast a measurement control message to the UE to which the MBMS service belongs. The measurement control message may include information such as a measurement object, a report rule, and the like, and the measurement object may include a channel quality indicator (CQI) of the base station to the user equipment, and a received signal received power of a neighboring cell of the user equipment. (RSRP) and so on.

Then, by using the broadcast measurement control message, the first acquiring apparatus 100 instructs each UE under the control of the base station la to measure the channel quality of the base station 1a, and feeds back the channel quality back to the base. Station la. Therefore, the UEs 4a and 4b at the cell edge will use a certain measurement method, for example, by using the preamble (Preamble d pilot information and the like) in the downlink signal sent by the base station la, and measuring the downlink communication quality of the base station la to the downlink communication quality. For example, a signal to noise ratio, a signal to noise ratio, and the like are supplied to the first acquisition device 100.

And, the first obtaining means 100 indicates that the respective UEs are also instructed to measure the received signal received power of their neighboring cells. Since the UEs 4a and 4b are at the cell edge, they may also be in the coverage of the signals of the base stations of the neighboring cells, such as the base station 3 and the base station lb, which also measure their respective frequencies by reference symbol received power (RSRP) of the neighboring cells. The downlink communication quality between the base station lb of the neighboring cell and the base station 3 is provided to the first acquisition device 100.

It is worth noting that the present invention is mainly directed to improving the MBMS service performance of UEs in the cell edge zone, so that UEs in the cell center zone are not required to provide their communication quality information, and their communication quality is not useful for multi-base station cooperation MBMS. In order to avoid the congestion of the uplink signal in the cell, the first acquiring device 100 may set the reporting threshold in the measurement control message, and the UE only receives the adjacent cell signal, and the signal is greater than the set reporting threshold. After that, the communication quality between the neighboring base station and the associated base station is reported to the first acquisition device 100. Moreover, in consideration of the mobility of the UE, in order to avoid the ping-pong effect of switching back and forth and to reduce the signal cost, the present invention can also set the hysteresis mechanism to improve the measurement accuracy.

In another case, in the symmetric channel, or the estimable asymmetric channel, the first obtaining apparatus 100 may determine the downlink channel of the base station la to the UE 4a and 4b based on the uplink signals to the base station 1a of the UE 4a and 4b. Signal quality; at the same time, the base station 3 and the base station 1b of the neighboring cells of the UEs 4a and 4b can determine the downlink channel quality of the base station 3 and the base station lb to the UE 4a and 4b devices according to the uplink signals of the UEs 4a and 4b, respectively, and This channel quality is provided to the first acquisition device 100.

Then, the first obtaining apparatus 100 acquires the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b, and acquires the local cell communication quality information between the UEs 4a and 4b and the local base station la.

Next, the first determining means 101 is based on the neighbor cell communication quality information between the base stations of the neighboring cells of the UEs 4a and 4b and the communication quality between the base station and the local cell Information, determining multi-base station cooperation information, and determining provision status information of the MBMS service of the cell under the control of the base station la.

Specifically, the coordinated cell determining apparatus 1010 of the first determining apparatus 101 determines, according to the neighboring cell communication quality information of the UEs 4a and 4b, one or more neighboring cells in which the communication quality is good is a coordinated cell. For example, the maximum and maximum principles (Max & Most) may be selected, and the number n of coordinated cells is determined, that is, n that cover the most UEs in the local cell and have the best communication quality with neighboring cells between the respective coverage UEs. The neighboring cell can serve as a coordinated cell of the base station. In this embodiment, it is considered that the RSRP of the base station 3 to the UE 4a is greater than the RSRP of the base station lb to the UE 4b, and the cell number threshold is 2, the coordinated cell determining apparatus 1010 can use the cell of the base station 3 and the base station 1 b as its cooperation. The cell uses both the base station 3 and the base station lb as its cooperative base station. It should be noted that in an actual network, the number of UEs may be greatly increased, and the threshold number of coordinated cells may also change. The policy of selecting a coordinated cell may also be different from the maximum and maximum principles described above, and those skilled in the art may Appropriate adjustments are made depending on the implementation, but this is within the scope of the present invention.

Meanwhile, in one case, the modulation and coding scheme determining apparatus 1011 of the first determining apparatus 101 further determines that the base station 11 provides the MBMS service to the UE under the jurisdiction according to the communication quality information of the communication quality of the UEs of the UEs 4a and 4b. The modulation coding mode is adopted to ensure that the UE with the worst communication quality can also extract the MBMS service data from the received signal processed by the modulation and coding method.

The first determining means 101 uses the related information of the selected coordinated cell and the determined modulation coding mode of the MBMS service provided by the local base station 1a as the multi-base station cooperation signal, and in another case, the first determining means 101 sets the UE. The communication quality information having the worst communication quality of the respective cells of 4a and 4b and the related information of the selected coordinated cell are used as the aforementioned multi-base station cooperation information. In this case, the multi-base station cooperation server assists in the selection of the modulation and coding mode of the MBMS.

It should be noted that in this embodiment, the UEs 4a and 4b are respectively adjacent to only one neighboring cell. It can be understood that in other topologies or actual networks, user equipment can At the same time, the base station of the neighboring cell can obtain the communication quality of each neighboring cell to the user equipment. Such a situation is also within the scope of the invention and claims.

Moreover, the first determining apparatus 101 further determines the providing status information of the MBMS service of the cell under its jurisdiction. Specifically, the providing status information may include the sequence number of the data packet of the MBMS service currently transmitted by the base station 1a, and the information may facilitate multiple base stations. The collaboration server synchronizes the transmission of MBMS packets.

Next, the first transmitting device 102 transmits the determined multi-base station cooperation information to the multi-base station cooperation control server 2 with the MBMS status information of the cell under the control of the base station la. Specifically, the M2 interface between the existing MCE and the base station may be extended and reused to transmit the information to the multi-base station cooperative control server 2.

Similarly, the similar device of the base station 1b can also determine the cell under the jurisdiction of the base station la as its coordinated cell according to the cell edge UE 4c under its jurisdiction, and send the multi-base station cooperation information and the MBMS service status information of the managed cell. The multi-base station is cooperatively controlled by the server 2. It should be noted that if the cell clusters to which the base stations la, lb, and the base station 3 belong include other base stations that assist the local cell to perform MBMS, the similar steps are also performed, and the multi-base station cooperation information and the MBMS provide status information. It is sent to the multi-base station cooperation control server 2.

Then, the first receiving apparatus 200 of the apparatus 20 of the multi-base station cooperative control server 2 receives the respective multi-base station cooperation information from the base station la and the base station 1b, and the MBMS service status information of the serving cell under its jurisdiction.

Next, the second determining means 201 determines, according to the respective multi-base station cooperation information of the base station 1a and the base station 1b, the MBMS service state information of the serving cell under its jurisdiction, and determines the cooperation of the base station 1a and the base station 1b with the respective multi-base stations of the neighboring cell base stations. In this way, collaboration with the MBMS service provides status information.

Since the plurality of base stations participating in the multi-base station cooperative MBMS need to use the same Modulation and Coding Scheme (MCS), the second determining device The first cooperative modulation and coding determining apparatus 2010 of 201 selects the modulation coding mode with the lowest communication capability from the base station 1a and the base station 1b providing the MBMS modulation coding mode, for example, the modulation coding mode with the lowest information rate as the common cooperative modulation coding mode of the base station 1a and the base station 1b. The UE that ensures the worst communication quality can also extract the MBMS service data from the signal processed according to the cooperative modulation and coding scheme. Specifically, the first cooperative modulation and coding determining apparatus 2010 sets the base stations 1a, 1b and the base station 3 to use the same MCS.

Due to the same principle, the multi-base station cooperative control server 2 needs to determine a common cooperative modulation coding mode according to each of the worst communication qualities. Specifically, since the base station and the base station of the coordinated cell simultaneously transmit the MBMS to the UE, the UE can obtain the combining gain, so that higher communication quality can be equivalently obtained. According to this principle, the apparatus 20 further includes a second cooperative modulation and coding determining means 2010 (not shown) which comprehensively considers the communication quality of each of the coordinated cells to the respective UEs in each of the coordinated cell information, and each base station to each UE The quality of communication, using a certain algorithm, determines a suitable common cooperative modulation coding method. The specific algorithm is not within the scope of the present invention, and one of ordinary skill in the art can accomplish this in accordance with the prior art.

And, the communication resource determining apparatus 2011 determines, for the base station 1a and the base station 1b and its coordinated cell base station, the communication resources for providing the MBMS service, wherein the coordinated cell base station of the base station 1a is the base station 3 and the base station 1b; the coordinated cell of the base station 1b is the base station La. Among them, the communication resource determining apparatus 2011 can perform communication resource allocation based on the following two methods:

(1) A single-frequency network in which the communication resource determining means 2011 transmits the same MBMS signal for the same time/frequency resource block allocated to the base station 1a, 1b and the base station 3 operating in the single-cell transmission mode. The signals of the MBMS services of the respective cells can be naturally superimposed on each other in the air to provide a radio frequency (RF) combining gain to the user equipment, so that the UE at the cell edge of the single cell transmission mode can obtain the combining gain. Specifically, the communication resource determining apparatus 2011 interacts with each base station to obtain a resource allocation situation, and finally Determine public time/frequency resources.

(2) Soft combining, in this mode, the communication resource determining apparatus 2011 does not need to allocate the same time/frequency resource block to the base station 1a, 1b and the base station 3, and each cell uses an appropriate time/frequency resource according to its own state. Send MBMS. The UE can obtain multiple signals and perform Maximum Ratio Combination (MRC) to obtain soft combining gain. Specific soft combining techniques are well known to those of ordinary skill in the art and are not described in detail herein. This resource allocation method may cause certain interference to UEs that use neighboring cells to communicate using the same transmission resource.

Then, the multi-base station cooperation mode determined by the second determining device 201 includes determining a cooperative modulation coding mode, and a communication resource for providing MBMS services with each of the plurality of base stations and their coordinated cell base stations.

In addition, the second determining device 201 determines the cooperation providing status information of the MBMS service. Specifically, the MBMS service status information provided by the base station 1a, 1b includes the data packet sequence number of the MBMS transmitted by the corresponding base station; The second determining means 201 can also obtain the packet number of the MBMS being transmitted by the base station 3. Then, according to the data packet sequence number of the current MBMS provided by each base station, it is determined that each base station starts to cooperate to start the MBMS transmission starting point, for example, the starting sequence number and the starting time of the data packet, and the starting sequence number should be all the current transmissions provided by each base station. The sequence numbers are all large; the start time should be the same under the condition of the single-frequency network, but can be different under the soft combining condition. The collaboration providing status information may further include information such as a data packet transmission period.

It is to be noted that the second determining device 201 may select a part of the base station actually participating in the cooperation from the base station 1a and the cooperative base station provided by the base station 1b according to a certain policy, for example, according to the MBMS service providing status of each coordinated cell at that time, not necessarily The way of collaboration is determined exactly in accordance with the cooperative base stations it provides.

Then, the second sending device 202 sends the determined multi-base station cooperation mode and the cooperation providing status information of the determined MBMS service to the corresponding base stations la, lb and the coordinated cell base station 3 through the M2 interface. The following description will be made from the perspective of the apparatus 30 of the base station 3, and it is apparent that the operations performed by the apparatus 10 of the base station la and the similar apparatus of the base station 1b are similar.

It can be understood that since the base station has the right to decide on data communication in the cell under its jurisdiction, The base station cooperation control server 2 preferably also negotiates with each of the base stations to determine whether the base station provides the MBMS service by providing status information in cooperation with the MBMS service. On the other hand, each base station preferably provides status information in cooperation with the MBMS according to the multi-base station cooperation mode provided by the multi-base station cooperation control server 2, makes a decision whether to participate in multi-base station cooperation, and feeds back its decision back to the multi-base station cooperation control server 2. In this case, correspondingly, the multi-base station cooperative control server 2 and each base station should also include means for negotiating and making decisions, and the present invention will not be further described in detail.

The second receiving device 300 of the device 30 of the base station 3 receives the multi-base station cooperation mode from the multi-base station cooperative control server 2, and provides state information in cooperation with the MBMS service.

The broadcast multicast service providing apparatus 301 performs modulation and coding processing on the data packet of the MBMS service according to the cooperative modulation and coding mode, and uses the time-frequency resource, starting from the data packet of the MBMS service corresponding to the start sequence number, at the start time. The MBMS service is provided to the UE. The MBMS service data can be obtained from the MBMS gateway by the base station 3 in advance through the M1 interface.

Similarly, the second receiving device 103 of the device 10 of the base station la and the broadcast multicast service providing device 104 also provide the MBMS service to the UE according to the multi-base station cooperation mode provided by the multi-base station cooperation control server 2, the cooperation of the MBMS service provides status information. . The base station lb also performs similar operations.

Of course, the process of providing MBMS may still require the base station to interact with the UE to inform the UE how to receive the MBMS signals sent by multiple base stations. This is well known to those skilled in the art and will not be described in detail herein.

Finally, for the UE 4a, it receives the MBMS signals from both the associated base station la and the base station 3, and performs corresponding combining processing to obtain MBMS service data. Similarly, UEs 4b and 4c also achieve MBMS performance improvements in cooperation with base station la and base station lb. By the present invention, the MBMS of the cell edge user equipment in the single cell transmission mode Service performance has been improved.

It can be understood that the above multi-base station cooperation relationship can be dynamically changed. The above steps can be re-executed when the quality of cooperation between the base station and its neighboring cells changes. In order to obtain a better multi-base station cooperation mode in real time, a better multi-base station cooperation service is provided to the user equipment. The embodiments of the present invention have been described above, and it is to be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications and changes within the scope of the appended claims.

Claims

Claim

A method for providing broadcast and/or multicast services based on multi-base station cooperation in a single cell transmission mode to one or more user equipments of a serving cell under the jurisdiction of a base station in a base station of a wireless communication network , which includes the following steps:

Obtaining neighbor cell communication quality information between the one or more user equipments and the base stations of the neighboring cells of the user equipment, and acquiring respective ones of the one or more user equipments and the base station Communication quality information between the communities;

Ii. determining, according to the neighboring cell communication quality information of the one or more user equipments and the communication quality information of the local cell, the multi-base station cooperation information, and determining the provision of the broadcast and/or multicast service of the cell under the jurisdiction of the base station status information;

Iii. transmitting the determined multi-base station cooperation information and the determined broadcast and/or multicast service status information of the cell under the control of the base station to the multi-base station cooperative control server.

The method according to claim 1, wherein the step i further comprises:

Receiving, from each of the one or more user equipments, neighbor cell communication quality information between the user equipment and a base station of the neighboring cell, and local cell communication quality information between the user equipment and the home base station.

The method according to claim 1 or 2, wherein, in the step ii, the step of determining the multi-base station cooperation information further comprises:

Determining, according to the neighboring cell communication quality information of the one or more user equipments, one or more neighboring cells in which the communication quality is good is a coordinated cell;

Determining a modulation coding mode in which the base station provides broadcast and/or multicast services according to the communication shield information of the communication quality of the one of the one or more user equipments that is the worst communication quality;

The multi-base station cooperation information includes related information of the one or more coordinated cells, and a modulation and coding manner of providing broadcast and/or multicast services with the base station.

The method according to claim 1 or 2, wherein in the step ii, the step of determining the multi-base station cooperation information further comprises: Determining, according to the neighboring cell communication quality information of the one or more user equipments, one or more neighboring cells in which the communication quality is good is a coordinated cell;

The multi-base station cooperation information includes related information of the one or more coordinated cells, and communication quality information having the worst communication quality among the communication quality of the own cell of the one or more user equipments.

The method according to claim 1, wherein the providing status information of the broadcast and/or multicast service of the cell under the jurisdiction of the base station comprises a data packet sequence number of the currently transmitted broadcast and/or multicast service.

6. A multi-base station cooperative control server in a wireless communication network for assisting one or more user equipments of respective serving cells of one or more base stations to provide broadcast based on multi-base station cooperation in a single cell transmission mode And/or a method of multicasting services, including the following steps:

I. receiving respective multi-base station cooperation information from the one or more base stations, and broadcasting and/or multicast service status information of the serving cell under its jurisdiction;

Determining, according to the respective multi-base station cooperation information of the one or more base stations, the broadcast and/or multicast service state information of the serving cell under its jurisdiction, determining the respective one or more base stations of the cooperative cell base station Multi-base station cooperation mode, providing state information in cooperation with the broadcast and/or multicast service;

III. Transmitting the multi-base station cooperation mode, the cooperation providing status information of the broadcast and/or multicast service to the corresponding one or more base stations and their coordinated cell base stations.

The method according to claim 6, wherein the multi-base station cooperation information comprises one or more coordinated cooperative cell information that is better in communication quality with user equipments in the corresponding base station, and provides broadcast and / or modulation coding mode of the multicast service; the step II further includes:

Deselecting a modulation coding scheme in which the communication capability is the lowest is a common cooperative modulation coding mode of the one or more base stations according to a modulation coding mode of each of the one or more base stations providing broadcast and/or multicast services;

Determining, for the one or more base stations and their cooperating cell base stations, their respective communication resources providing said broadcast and/or multicast services; The multi-base station cooperation mode includes the cooperative modulation and coding mode, and the communication resources of the one or more base stations and their coordinated cell base stations that provide the broadcast and/or multicast service.

The method according to claim 6, wherein the multi-base station cooperation information comprises one or more coordinated cooperative cell information that is better in communication quality with user equipments in the corresponding base station, and is managed by the corresponding base station. The communication quality information of the cell in the cell that has the worst communication quality with the base station;

The step II further includes:

Determining, according to the worst local cell communication quality information of the one or more base stations, a cooperative modulation coding mode common to the coordinated cell base stations of the one or more base stations;

Determining, for the one or more base stations and their cooperating cell base stations, their respective communication resources providing said broadcast and/or multicast services;

The multi-base station cooperation mode includes the cooperative modulation and coding mode, and the communication resources of the one or more base stations and their coordinated cell base stations providing the broadcast and/or multicast service.

The method according to claim 6, wherein the broadcast and/or multicast service status information of the serving cell includes a data packet sequence number of a broadcast and/or multicast service currently transmitted by the base station, the broadcast The cooperation providing status information of the and/or multicast services includes a starting sequence number and a start time of a data packet of the one or more base stations and their coordinated cell base stations based on the coordinated broadcast and/or multicast service of the multi-base station.

10. A method for providing broadcast and/or multicast services based on multi-base station cooperation in a single cell transmission mode to a user equipment in a base station of a wireless communication network, wherein the method comprises:

Receiving a multi-base station cooperation mode from the multi-base station cooperative control server, and providing status information in cooperation with the broadcast and/or multicast service;

b. providing status information to the user equipment to provide the broadcast and/or multicast service in cooperation with the broadcast and/or multicast service according to the multi-base station cooperation mode.

The method according to claim 10, wherein the multi-base station association The method includes a cooperative modulation coding mode and a communication resource for providing the broadcast and/or multicast service, and the step b further includes:

Performing modulation coding processing on the broadcast and/or multicast service in accordance with the cooperative modulation coding scheme, and transmitting the broadcast and/or multicast service modulated by the coding process to the user equipment using the communication resource .

The method according to claim 10, wherein the cooperation of the broadcast and/or multicast service provides status information including a starting sequence number and a start of a data packet for transmitting a broadcast and/or multicast service. Time, the step b further includes:

Providing, at the start time, the broadcast and/or multicast service to the user equipment according to the multi-base station cooperation mode, starting from a data packet of a broadcast and/or multicast service corresponding to the start sequence number .

13. A device for providing broadcast and/or multicast services based on multi-base station cooperation in a single cell transmission mode to one or more user equipments of a serving cell administered by the base station in a base station of a wireless communication network , including:

a first acquiring means, configured to acquire neighbor cell communication quality information between respective ones of the one or more user equipments and base stations of neighboring cells of the user equipment, and acquire respective ones of the one or more user equipments The local cell communication quality information between the base station and the base station

a first determining means, configured to determine, according to the neighboring cell communication quality information of the one or more user equipments, the multi-base station cooperation information, and determine the broadcast of the cell under the jurisdiction of the base station Or providing status information of the multicast service;

a first transmitting means for transmitting the determined multi-base station cooperation information and the determined broadcast and/or multicast service status information of the cell under the control of the base station to the multi-base station cooperative control server.

The device according to claim 13, wherein the first acquiring device is further configured to:

And receiving, by the respective one or more user equipments, neighbor cell communication quality information between the user equipment and a base station of the neighboring cell, and local cell communication quality information between the user equipment and the local base station.

The device according to claim 13 or 14, wherein the first determining device further comprises:

a coordinated cell determining apparatus, configured to determine, according to respective neighbor cell communication quality information of the one or more user equipments, one or more neighboring cells in which the communication quality is good is a coordinated cell;

- a modulation and coding mode determining means for determining a modulation and coding mode in which the base station provides broadcast and/or multicast services according to the communication quality information having the worst communication quality among the communication qualities of the respective ones of the one or more user equipments;

The apparatus according to claim 13, wherein the providing status information of the broadcast and/or multicast service of the cell under the control of the base station comprises a data packet number of the currently transmitted broadcast and/or multicast service.

18. A multi-base station cooperative control server in a wireless communication network for assisting one or more user equipments of respective serving cells of one or more base stations to provide broadcast based on multi-base station cooperation in a single cell transmission mode And/or a device for multicasting services, including:

a first receiving device, configured to receive respective multi-base station cooperation information from the one or more base stations, and broadcast and/or multicast service status information of the serving cell under its jurisdiction;

a second determining means for determining, according to the respective multi-base station cooperation information of the one or more base stations, broadcast and/or multicast service status information of the serving cell under its jurisdiction Providing, by the one or more base stations, a multi-base station cooperation mode with its coordinated cell base station, and providing cooperation with the broadcast and/or multicast service to provide status information;

And a second transmitting device, configured to send the multi-base station cooperation mode, the cooperation providing status information of the broadcast and/or multicast service to the corresponding one or more base stations and its coordinated cell base station.

The apparatus according to claim 18, wherein the multi-base station cooperation information comprises one or more coordinated cooperative cell information that is better in communication quality with user equipments in the corresponding base station, and provides broadcast and / or modulation coding mode of the multicast service;

The second determining device further includes:

a first cooperative modulation and coding determining means for selecting a modulation coding mode in which the communication capability is the lowest as the one or more according to a modulation coding mode of each of the one or more base stations providing broadcast and/or multicast services a common cooperative modulation coding mode of the base station;

a communication resource determining means for determining, for the one or more base stations and their cooperating cell base stations, their respective communication resources providing said broadcast and/or multicast services;

The apparatus according to claim 18, wherein the multi-base station cooperation information comprises one or more coordinated cooperative cell information that is better in communication quality with user equipments in the corresponding base station, and is managed by the corresponding base station. The traffic communication information of the local area in the cell that has the worst communication quality with the base station;

The second determining device further includes:

a second cooperative modulation and coding determining means, configured to determine a cooperative modulation and coding mode common to the coordinated cell base station of the one or more base stations according to a worst local cell communication quality information of the one or more base stations;

The multi-base station cooperation mode includes the cooperative modulation and coding mode, and the one or A plurality of base stations and their cooperating cell base stations each providing communication resources of the broadcast and/or multicast service.

The device according to claim 18, wherein the broadcast and/or multicast service status information of the serving cell includes a data packet sequence number of a broadcast and/or multicast service currently transmitted by the base station, the broadcast The cooperation providing status information of the and/or multicast services includes a starting sequence number and a start time of a data packet of the one or more base stations and their coordinated cell base stations based on the coordinated broadcast and/or multicast service of the multiple base stations.

22. An apparatus for providing, to a user equipment, a broadcast and/or multicast service based on multi-base station cooperation in a single cell transmission mode in a base station of a wireless communication network, wherein:

a second receiving device, configured to receive a multi-base station cooperation mode from the multi-base station cooperative control server, and provide status information in cooperation with the broadcast and/or multicast service;

a broadcast multicast service providing means for providing the broadcast and/or multicast service to the user equipment in accordance with the cooperation of the broadcast and/or multicast service in accordance with the multi-base station cooperation mode.

The apparatus according to claim 22, wherein the multi-base station cooperation mode comprises a cooperative modulation and coding mode and a communication resource for providing the broadcast and/or multicast service, and the broadcast multicast service providing device further Used for:

The broadcast and/or multicast service is modulated and coded in accordance with the cooperative modulation and coding scheme, and the broadcast and/or multicast service modulated and encoded is transmitted to the user equipment using the communication resource.

24. The apparatus according to claim 22, wherein the cooperative providing status information of the broadcast and/or multicast service comprises a starting sequence number and a start of a data packet for transmitting a broadcast and/or multicast service. The broadcast multicast service providing apparatus is further configured to: start, at the start time, a data packet of a broadcast and/or multicast service corresponding to the start sequence number, according to the multi-base station cooperation mode The user equipment provides the broadcast and/or multicast service.

A base station in a wireless communication network, comprising: one or more of the serving cells for assisting the base station according to claims 13 to 17 The user equipment provides means for broadcasting and/or multicasting services based on multi-base station cooperation in a single cell transmission mode.

26. A communication server in a wireless communication network, comprising: providing for providing one or more user equipments to a serving cell of a respective one or more base stations, according to claims 18-21 A device based on multi-base station cooperative broadcast and/or multicast service in a single cell transmission mode.

27. A base station in a wireless communication network, comprising: providing, according to claims 22 to 24, a broadcast and/or multicast service based on multi-base station cooperation in a single cell transmission mode for providing a user equipment Device.