WO2008095413A1 - Procédé et dispositif de macro-diversité dans un système de télécommunications - Google Patents

Procédé et dispositif de macro-diversité dans un système de télécommunications Download PDF

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Publication number
WO2008095413A1
WO2008095413A1 PCT/CN2008/000269 CN2008000269W WO2008095413A1 WO 2008095413 A1 WO2008095413 A1 WO 2008095413A1 CN 2008000269 W CN2008000269 W CN 2008000269W WO 2008095413 A1 WO2008095413 A1 WO 2008095413A1
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WO
WIPO (PCT)
Prior art keywords
data
link
base station
radio network
link quality
Prior art date
Application number
PCT/CN2008/000269
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English (en)
Chinese (zh)
Inventor
Feifei Lou
Xiaoqi Wang
Zhi Rui
Yuhong Huang
Original Assignee
China Mobile Communications Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Corporation filed Critical China Mobile Communications Corporation
Publication of WO2008095413A1 publication Critical patent/WO2008095413A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment

Definitions

  • the present invention relates to an uplink macrodiversity method for a mobile communication system, and more particularly to a method for uplink macrodiversity combining of signals of a plurality of base stations when a user equipment performs soft handover across a cell in a mobile communication system.
  • UMTS Universal Mobile Communication System
  • UE User Equipment
  • the UE communicates with at least two base stations (Node Bs) participating in the handover.
  • the UMTS Terrestrial Radio Access Network separately separates signals from multiple base stations, and this technique of diversity combining is called macro diversity.
  • UTRAN UMTS Terrestrial Radio Access Network
  • the switching area of WCDMA accounts for 30% to 40% of the entire network. How to perform uplink macro diversity is very important for the network.
  • FIG. 1 it is an application structure diagram of uplink macro diversity in the prior art.
  • the Node B 2 and the Node B 3 participating in the UE1 handover belong to the same Radio Network Control 4 (RNC), and the RNC 4 receives data from two Node Bs, according to UE1.
  • the measurement report sent in a predetermined period or according to a specific event selects a good quality link from the signal links of the two Node Bs, and transmits the signal of the link up to the core network device 5 (for example, GGSN/SGSN).
  • FIG. 2 is a schematic diagram of another application structure of uplink macro diversity in the prior art.
  • Node B 2 and Node B 3 participating in UE1 handover belong to different RNCs, where Node B 2 is attributed to the RNC4, and the Node B3 is attributed to the RNC6.
  • the RNC receives the data of the UE1
  • only one RNC can perform macro-diversity aggregation on the data and upload it to the core network device 5, and the RNC is defined as the first RNC.
  • the Node B connected to the first RNC is defined as the first Node B.
  • a Node B connected to the second RNC is defined as a second Node B.
  • RNC4 is the first RNC
  • RNC6 is the second RNC
  • RNC 6 receives the data from Node B 3 and forwards it to RNC4, and then RNC4 unpacks the measurement report sent by UE1 to determine which link has the most signal. Well, the best link is selected to upload the data to the core network device 5.
  • the measurement report is sent by the UE to each RNC according to a predetermined period or a user-triggered event, and the measurement 4 includes a link quality parameter of the data link associated with the UE, such as a bit error rate, a signal to noise ratio, and the like.
  • This technique has certain drawbacks, mainly in that each second RNC forwards data received from the UE to the first RNC, which greatly increases the traffic between the first RNC and the second RNC. The load is very heavy. Summary of the invention
  • the object of the present invention is to provide an uplink macro diversity method for a mobile communication system, which can reduce network traffic of uplink macro diversity during soft handover and reduce network load.
  • Another object of the present invention is to provide an uplink macro diversity implementing apparatus for a mobile communication system, which can reduce network traffic of uplink macro diversity during soft handover and reduce network load.
  • the present invention provides an uplink macro diversity method for a mobile communication system.
  • the following steps are included:
  • the plurality of radio network controllers of the user equipment accessing the core network receive the measurement report sent by the user equipment, the measurement report is unpacked, and the user equipment is accessed to access the core network.
  • Link quality of each data link The plurality of radio network controllers analyze the demodulated measurement report, if the link quality of the data link where the first radio network controller is used to perform the uplink macro diversity operation is on the various data links The highest is medium, and the first radio network controller directly uploads data received from the data link to the core network device.
  • the link quality of the data link where the first radio network controller for performing the uplink macro diversity operation is located is not the highest among the data links
  • the data with the highest link shield is A second radio network controller in the link forwards data received from the data link to the first radio network controller, and the second radio network controller is used by the first radio network controller The forwarded data is uploaded to the core network device.
  • the present invention also provides an uplink macro diversity method for another mobile communication system.
  • the soft handover process the following steps are included:
  • the plurality of radio network controllers analyze the unpacked measurement report, and the link quality of the data link where the first radio network controller is configured to perform the uplink macro diversity operation is in each of the data links. Not the highest, the second radio network controller in the data link with the highest link quality forwards the data received from the data link to the first radio network controller, and is controlled by the first radio network. The device uploads the data forwarded by the second radio network controller to the core network device.
  • the RNC part function is distributed to the network architecture in each Node B.
  • the present invention provides an uplink macro diversity method of the mobile communication system, in the soft handover process. , including the following steps:
  • the plurality of base stations analyze the unpacked measurement report. If the link quality of the data link where the first base station is used for performing the uplink macro diversity operation is the highest among the data links, The first base station directly uploads data received from the data link to the core network device.
  • the link quality of the data link where the first base station for performing the uplink macro diversity operation is located is not the highest among the data links, the data link with the highest link quality
  • the second base station forwards the data received by the data link to the first base station, and then the first base station uploads the data forwarded by the second base station to the core network device.
  • the present invention also provides an uplink macro diversity method for another mobile communication system.
  • the soft handover process the following steps are included:
  • the plurality of base stations analyze the unpacked measurement report. If the link quality of the data link where the first base station is used for performing the uplink macro diversity operation is not the highest among the data links, the chain The second base station in the data link with the highest quality of the path forwards the data received from the data link to the first base station, and the first base station uploads the data forwarded by the second base station to the core network. device.
  • the present invention further provides an apparatus for implementing an uplink macrodiversity of a mobile communication system, comprising: a user data receiving module, a measurement report receiving processing module, a link quality determining module, and a data uploading module;
  • the user data receiving module is configured to receive user data transmitted by a data link with the highest link shield
  • the measurement report receiving processing module is configured to receive a measurement report sent by the user equipment, and unpack the measurement report, to obtain a link quality of each data link of the user equipment accessing the core network; a path quality determining module, configured to determine whether a link quality of a first radio network controller or a data link where the first base station is located performing the uplink macro diversity operation is the highest among the data links, and if yes, notify The data uploading module;
  • the data uploading module is configured to upload data received by the user data receiving module to a core network device.
  • the radio network controller or the base station related to the user equipment unpacks the measurement report to determine which data link has the best link quality, and directly The data link with the best link quality uploads data to the core network device through the radio network controller or base station for uplink macro diversity.
  • the data with the best quality is not transmitted between the radio network controller or the base station. And signaling for notification, thereby reducing network traffic of uplink macro diversity during soft handover, and reducing network load.
  • FIG. 1 is a schematic diagram of an application structure of uplink macro diversity in the prior art.
  • FIG. 2 is a schematic diagram of another application structure of uplink macro diversity in the prior art.
  • FIG. 3 is a schematic diagram of an application structure of an uplink macro diversity method applied to a traditional communication network architecture.
  • FIG. 4 is a schematic diagram of another application structure of the uplink macro diversity method applied to the traditional communication network architecture.
  • FIG. 5 is a schematic flowchart diagram of an embodiment of a method for uplink macro diversity according to the present invention.
  • FIG. 6 is a schematic diagram of an application structure of an uplink macro diversity method applied to a flat communication network architecture according to the present invention.
  • FIG. 7 is a schematic diagram of another application structure of the uplink macro diversity method applied to the flat communication network architecture.
  • FIG. 8 is a schematic flowchart diagram of another embodiment of a method for uplink macro diversity according to the present invention.
  • FIG. 9 is a schematic structural diagram of an apparatus for implementing uplink macrodiversity of a mobile communication system according to the present invention.
  • FIG. 10 is a schematic structural diagram of an apparatus for implementing uplink macrodiversity of a mobile communication system according to the present invention.
  • the idea of the present invention is: Since the UE sends to each RNC according to a predetermined period or according to a user event Sending a measurement report, and for each RNC, according to the measurement report, it can be known which data link in each RNC has the best quality, so that each RNC unpacks the measurement report, and each RNC can obtain the user.
  • the device transmits the link shield of all links of the data, and then uploads the best link quality data to the core network.
  • only the first RNC unpacks the measurement report, and the other second RNC needs to forward the data to the first RNC, which reduces the data transmission amount of the uplink macro diversity during the soft handover, and also reduces the data transmission amount. Network load.
  • FIG. 5 is a schematic diagram of an uplink macro diversity method of the mobile communication system applied to the mobile communication network architecture, where FIG. 5 is a schematic flowchart of an embodiment of the method for uplink macro diversity according to the present invention, in a soft handover process. In, including the following steps:
  • Step 101 When a plurality of radio network controllers in the data link of the user equipment accessing the core network receive the measurement report sent by the user equipment, the measurement report is unpacked, and the user is obtained. Link quality of each data link of the device accessing the core network;
  • Step 102 The plurality of radio network controllers analyze the unpacked measurement report, and determine, according to the link quality of the data link where the first radio network controller for performing the uplink macro diversity operation is located. Whether the data link is the highest, if yes, go to step 103, otherwise go to step 104;
  • Step 103 The first radio network controller directly uploads data received from the data link to the core network device, and then ends the operation;
  • Step 104 The second radio network controller in the data link with the highest link shield quantity forwards data received from the data link to the first radio network controller, and then the first radio network controller Uploading data forwarded by the second radio network controller to the core network device.
  • step 103 of this embodiment when the link quality of the data link where the first radio network controller 4 for performing the uplink macro diversity operation is located is the highest among the data links, as shown in FIG. 3, The data received by the data link in the data is directly uploaded by the radio network controller 4 to the core network device 5.
  • the process shown in FIG. 4 may be adopted, that is, the second radio network controller in the data link with the highest link quality. 7 Forwarding the data received from the data link to the first radio network controller 4, and then transmitting the data forwarded by the second radio network controller 7 to the core network device 5 by the first radio network controller 4.
  • the process in the prior art may also be adopted when the link quality of the data link where the first radio network controller 4 is located is not the highest, that is, in the radio network controller associated with the user equipment,
  • the other radio network controllers transmit the received data to the first radio network controller 4, which is then received by the first radio network controller 4.
  • the data is macro-divided and then uploaded to the core network device 5.
  • step 104 when step 104 is employed, step 103 can also be replaced with the prior art flow.
  • the radio network controller In a flat network architecture, some functions of the radio network controller are used in the base station. Based on the network architecture, the present invention provides another embodiment. As shown in FIG. 6-8, during the soft handover process, Includes the following steps:
  • Step 201 When the base station corresponding to the data link of the user equipment accessing the core network receives the measurement report sent by the user equipment, the measurement report is unpacked, and the number of the user equipment accessing the core network is obtained. Link quality of the data link;
  • Step 202 The plurality of base stations analyze the unpacked measurement report, and determine whether the link quality of the data link where the first base station is used for performing the uplink macro diversity operation is the highest in each data link, and then Step 203 is performed, otherwise step 204 is performed;
  • Step 203 The first base station directly uploads data received from the data link to the core network device, and ends the operation.
  • Step 204 The second base station in the data link with the highest link quality forwards data received from the data link to the first base station, and then the first base station forwards the data of the second base station. Upload to the core network device.
  • step 203 of the embodiment when the link shield of the data link where the first base station 8 for performing the uplink macro diversity operation is located is the highest among the data links, as shown in FIG. A base station 8 directly uploads data received from the data link to the core network device 5.
  • the process shown in FIG. 7 may be adopted, that is, the data link of the second base station 9 in the data link with the highest link quality will be located.
  • the data received by the road is forwarded to the first base station 8, and the data forwarded by the second base station 9 is uploaded by the first base station 8 to the core network device 5.
  • the link quality of the data link where the first base station 8 is located may not be the most
  • the high-time adopts the process in the prior art, that is, in the base station associated with the user equipment, except for the first base station 8 for performing the uplink macro diversity operation, the other base stations transmit the received data to the first base station 8, The received data is then macro-divided by the first base station 8 and then uploaded to the core network device 5.
  • step 204 when step 204 is adopted, step 203 can also be replaced with the prior art process.
  • the present invention further provides a first embodiment of the device for implementing the uplink macrodiversity of the mobile communication system, and the structure of the device is as shown in FIG.
  • a user data receiving module 31 configured to receive user data transmitted by a data link with the highest link quality
  • the measurement report receiving processing module 32 is configured to receive a measurement report sent by the user equipment, and unpack the measurement report, and obtain a link quality of each data link of the user equipment accessing the core network;
  • a link quality determining module 33 configured to determine whether a link quality of a first radio network controller or a data link where the first base station is located performing an uplink macrodiversity operation is the highest in each of the data links, and if so, Notifying the data uploading module 34; when the link quality determining module 33 determines the link quality of the first radio network controller or the data link where the first base station is located performing the uplink macrodiversity operation, in each of the data links When the middle is not the highest, the user data receiving module 31 is notified; after receiving the notification sent by the link quality determining module 33, the user data receiving module 31 receives the second wireless network controller or the second in the data link with the highest link quality. The user data sent by the base station is sent to the data uploading module 34;
  • the data uploading module 34 is configured to upload the data received by the user data receiving module 31 to the core network device.
  • the link quality determining module 33 determines the link quality of the data link where the second radio network controller or the second base station that does not perform the uplink macro diversity operation is located, the highest among the data links.
  • the notification data uploading module 34 after receiving the notification sent by the link quality determining module 33, the data uploading module 34 transmits the data received by the user data receiving module 31 to the first radio network controller or the first performing the uplink macrodiversity operation.
  • a base station It can be seen from the above description that the user data receiving module 31 can be used to directly receive the user data sent by the user equipment, and can also be used to receive the user data sent by the second radio network controller or the second base station.
  • the data uploading module 34 may be configured to upload the data received by the user data receiving module 31 to the core network device, and may also be used to transmit the data received by the user data receiving module 31 to the first wireless network controller performing the uplink macro diversity operation or First base station.
  • the present invention further provides a second embodiment of the apparatus for implementing the uplink macrodiversity of the mobile communication system, and a schematic structural diagram thereof is shown in FIG. 10, except that the user data receiving module 31 is included.
  • the measurement report receiving processing module 32, the link quality determining module 33, and the data uploading module 34 may further include:
  • the first data interaction module 35 is configured to: when the link quality determining module 33 determines the link quality of the first radio network controller or the data link where the first base station is located performing the uplink macro diversity operation, in the pieces of data When the link is not the highest, the second radio network controller in the data link with the highest receiving link quality or the user data sent by the second base station is transmitted to the user data receiving module 31; and then sent by the user data receiving module 31.
  • the data uploading module 34 the user data is uploaded by the data uploading module 34 to the core network device.
  • the method may further include: a second data interaction module 36;
  • the link quality determining module 33 determines the link quality of the data link where the second radio network controller or the second base station itself is not performing the uplink macro diversity operation, when the highest of the data links is the highest, the notification a second data interaction module 36;
  • the second data interaction module 36 is configured to transmit the data received by the user data receiving module 31 to the first radio network controller or the first base station that performs the uplink macro diversity operation.
  • the uplink macro diversity implementing apparatus of the mobile communication system provided by the present invention is disposed in a first radio network controller or a first base station performing uplink macrodiversity operation, and is disposed in a second radio network controller that does not perform uplink macrodiversity operation or In the second base station, the following description is made by taking the device as the first base station and the second base station as an example.
  • the measurement report receiving processing module 32 in the first base station After receiving the measurement report sent by the user equipment, the measurement report receiving processing module 32 in the first base station unpacks the measurement report, and obtains the link quality of each data link of the user equipment accessing the core network;
  • the link quality determining module 33 when determining that the link quality of the data link where the first base station is located is the highest among the data links, notifying the data uploading module 34 in the first base station; the data in the first base station
  • the uploading module 34 uploads the data received by the user data receiving module 31 in the first base station to the core network device.
  • the data received by the user data receiving module 31 is directly received from the user equipment.
  • the link quality determining module 33 in the first base station determines that the link shield of the data link where the first base station is located is not the highest among the data links, then a second base station must be determined in the network.
  • the second data exchange module 36 of the second base station sends the data received by the local user data receiving module 31 to the first data interaction module 35 in the first base station;
  • the first data interaction module 35 in the first base station After receiving the data, the first data interaction module 35 in the first base station transmits the data to the user data receiving module 31 in the first base station, and then transmits the data to the first base station by the user data receiving module 31 in the first base station.
  • the module 34 uploads the user data to the core network device by the data uploading module 34 in the first base station.
  • the present invention can directly upload the received data to the core network when the link quality of the first radio network controller or the first base station for performing the uplink macro diversity operation is the best, the data and the letter are not added to the network.
  • the link quality of the first radio network controller or the first base station is not the best, only the second radio network controller or the second base station with the best link quality sends the data to the first radio network controller or
  • the first base station reduces data transmission between radio network controllers or between base stations as compared with the prior art, and also increases system capacity.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de macro-diversité en liaison ascendante dans un système de télécommunications mobiles. À cet effet, pendant que le contrôleur de réseau radio ou la station de base reçoit les comptes rendus de mesures, on sort des paquets les comptes rendus de mesures et on acquiert la qualité de liaison de chacune des liaisons de données. Ensuite, on analyse les comptes rendus de mesures sortis des paquets, et si la qualité de liaison du premier contrôleur de réseau radio ou de la première station de base utilisée pour exécuter l'opération de macro-diversité en liaison ascendante est la meilleure, on envoie à l'appareil de réseau central les données reçues provenant de la liaison de données.
PCT/CN2008/000269 2007-02-07 2008-02-02 Procédé et dispositif de macro-diversité dans un système de télécommunications WO2008095413A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2007100636591A CN101242565B (zh) 2007-02-07 2007-02-07 移动通信系统的上行宏分集方法
CN200710063659.1 2007-02-07

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WO2008095413A1 true WO2008095413A1 (fr) 2008-08-14

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CN103002533B (zh) * 2012-12-31 2015-12-09 京信通信系统（中国）有限公司 一种宏分集的处理方法及装置
RU2020121485A (ru) * 2015-11-24 2020-07-14 АйПиКОМ ГМБХ УНД КО.КГ Управление трафиком восходящего канала, принимаемого несколькими базовыми станциями
CN109561455B (zh) * 2018-12-14 2022-02-18 四川通信科研规划设计有限责任公司 一种混合网络的通信系统及方法

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CN1168757A (zh) * 1994-12-08 1997-12-24 艾利森电话股份有限公司 数字移动无线通信系统中的上行链路宏分集方法和设备
US20050020216A1 (en) * 2003-07-25 2005-01-27 Evolium S.A.S. Uplink macro diversity method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1168757A (zh) * 1994-12-08 1997-12-24 艾利森电话股份有限公司 数字移动无线通信系统中的上行链路宏分集方法和设备
US20050020216A1 (en) * 2003-07-25 2005-01-27 Evolium S.A.S. Uplink macro diversity method

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