WO2013107421A1 - 上行链路发射分集的传输方法、装置及系统 - Google Patents
上行链路发射分集的传输方法、装置及系统 Download PDFInfo
- Publication number
- WO2013107421A1 WO2013107421A1 PCT/CN2013/070780 CN2013070780W WO2013107421A1 WO 2013107421 A1 WO2013107421 A1 WO 2013107421A1 CN 2013070780 W CN2013070780 W CN 2013070780W WO 2013107421 A1 WO2013107421 A1 WO 2013107421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- user equipment
- transmit diversity
- uplink transmit
- base station
- network controller
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a transmission method, apparatus, and system for uplink transmit diversity. Background technique
- the uplink transmit diversity technology can reduce the terminal transmit power, improve the edge coverage, and improve the cell capacity. At the same time, the service transmission rate of the cell edge user is also improved, thereby improving the user experience. Therefore, the uplink transmit diversity technology such as MIMO (Multiple-Input Multiple-Out-put) can be applied to the uplink transmission of the UMTS (Universal Mobile Telecommunications System) to meet the UMTS uplink transmission and improve the spectrum. Efficiency, improved upstream transmission coverage, and further increased user peak rate requirements.
- the RNC Radio Network Controller
- the RNC Radio Network Controller
- the user equipment activates uplink transmit diversity according to the activation notification, or activates uplink transmit diversity according to the deactivation notification;
- a processing unit configured to activate uplink transmit diversity according to the activation notification, or activate uplink transmit diversity according to the deactivation notification;
- the terminal which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
- the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
- RAN Radio Access Network
- the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
- the base station acquires a reference measurement related quantity of the UE.
- the reference measurement related quantity of the UE includes information about a power of the UE and a CQI (Channel Quality Indication).
- the NodeB may receive the measurement report of the UE periodically periodically, and obtain the reference measurement related quantity of the UE from the measurement report.
- the NodeB can also detect the reference measurement correlation quantity of the NodeB itself, and according to the preset activation condition, the UE The reference measurement correlation quantity and the reference measurement correlation quantity of the NodeB determine whether to activate or deactivate the uplink transmit diversity of the UE.
- the reference measurement related quantity of the NodeB includes information such as resource usage and receiver performance in the NodeB.
- the uplink transmit diversity of the activated UE may be configured to start uplink transmit diversity of the UE, and the uplink transmit diversity of the deactivated UE may be to configure and stop uplink transmit diversity of the UE.
- the base station sends an activation request indication to the RNC when determining to activate the uplink transmit diversity of the UE, or sends a deactivation request indication to the RNC when determining to deactivate the uplink transmit diversity of the UE;
- the UE and the NodeB may respectively send the uplink transmit diversity capability to the RNC, so that the RNC knows that the UE and the NodeB have the capability of transmitting data by using the uplink transmit diversity.
- the RNC may separately send configuration parameter information to the UE and the NodeB, and the UE and the NodeB perform some configuration operations related to uplink transmit diversity according to the configuration parameter information.
- the transmission method of the uplink transmit diversity in this embodiment includes:
- the NodeB determines whether to activate/deactivate the uplink OLTD according to the reference measurement related quantity reported by the UE and the detected reference measurement related quantity of the base station. For example, the NodeB may decide to activate/deactivate the uplink OLTD of the UE according to the power of the UE, the CQI, and the resource usage (or related measurement) in the NodeB and the preset activation/deactivation conditions.
- the activation condition or the deactivation condition can be flexibly set according to the transmission requirement of the uplink data.
- the NodeB determines that the UE is always in a power-restricted state according to the UPH (UE Power Headroom) reported by the UE, and the power of the DPCCH (Dedicated Physical Control Channel) is also compressed.
- the feedback TPC command word can not reflect the real situation of the channel. This is because the TPC command word is always the value of the rising power, which will cause the deterioration of the uplink transmit diversity performance. Therefore, if the current UE is in the active uplink OLTD state, the NodeB may determine to deactivate the uplink OLTD of the UE.
- the NodeB determines whether to activate/deactivate the uplink OLTD according to the reference measurement related quantity reported by the UE and the detected reference measurement related quantity of the base station. For the specific operation of this step, refer to step 202, and details are not described herein again.
- step 203 For the specific operation of this step, refer to step 203, and details are not described herein again.
- the RNC sends a notification of activating/deactivating the uplink OLTD to the UE according to the activation/deactivation request indication.
- the RNC sends a notification of activating/deactivating the uplink OLTD to the UE according to the activation/deactivation request indication.
- the RNC After receiving the completion notification of the activation/deactivation uplink OLTD sent by the UE, the RNC sends an activation/deactivation completion notification to the NodeB.
- the base station determines, according to the reference measurement quantity of the UE, the activation/deactivation of the uplink transmit diversity of the UE and instructs the RNC to notify the UE to activate/deactivate the uplink transmit diversity.
- the base station can obtain the reference measurement correlation quantity of the UE in a timely and effective manner, so that the activation or deactivation of the uplink transmit diversity can be performed more timely and effectively.
- the uplink transmission mode suitable for the current transmission situation can be adjusted in a timely and effective manner, and can be adjusted in time and effectively, thereby improving the quality of the uplink transmission.
- the UE may determine to activate/deactivate the uplink OLTD of the UE according to the detected UE's own power, channel quality, and the like, the measurement related quantity, and the preset activation/deactivation conditions.
- the UE may also receive the reference measurement correlation quantity of the NodeB, and determine activation/deactivation according to the detected UE's own power, channel quality, the received reference measurement quantity of the NodeB, and the preset activation/deactivation conditions.
- the activation condition or the deactivation condition can be flexibly set according to the transmission requirement of the uplink data.
- the NodeB sends an activation request indication to the RNC, so that the RNC notifies the UE to activate uplink transmit diversity according to the activation request indication; the RNC receives an activation request indication sent by the NodeB, and notifies the UE and the NodeB according to the activation request indication. Activating uplink transmit diversity; the UE receives an activation notification of an activated uplink transmit diversity of the RNC, and activates uplink transmit diversity according to the activation notification;
- the NodeB when determining that the uplink transmit diversity of the UE needs to be activated, the NodeB sends an activation request indication to the RNC, and sends a deactivation request indication to the RNC when determining that the uplink transmit diversity of the UE needs to be deactivated.
- the antenna information is located in a field in the deactivation indication, and the field displays that the UE deactivates the uplink transmit diversity. After The number of the antenna that sends the data channel or the number of the antenna that does not transmit the data channel after the UE deactivates the uplink transmit diversity. Assuming that the two antennas of the UE are antenna 1 and antenna 2, respectively, the antenna information will indicate whether the antenna 1 uses the antenna 1 to transmit the data channel or the antenna 2 to transmit the data channel after the UE deactivates the transmit diversity, in the deactivation indication.
- the NodeB sends an activation request indication to the RNC when determining to activate the uplink transmit diversity of the UE, or send a deactivation request indication to the RNC when determining to deactivate the uplink transmit diversity of the UE; for example, a NodeB
- the activation request indication or the deactivation request indication of the uplink transmit diversity of the UE may be sent to the RNC according to the decision result in step 102. That is, the NodeB sends an activation request indication to the RNC to activate the UE when it determines the uplink transmit diversity of the activated UE, or the NodeB sends a deactivation request indication to the RNC to deactivate the UE when determining the uplink transmit diversity of the deactivated UE.
- the base station determines, according to the tuner frequency information carried in the deactivation notification message, a time point for detecting the tuner frequency signal of the user equipment, where the base station detects the user equipment according to the determined time point.
- the frequency quality is queried to determine whether an activation request indication is sent to the radio network controller to activate the uplink transmit diversity of the user equipment.
- the base station further includes:
- the receiving unit 503 is further configured to receive an activation notification message that is sent by the radio network controller, where the activation notification message is used to notify the base station that the user equipment activates uplink transmit diversity, and the base station further includes: a second determining unit 507, And if the precoding feedback channel in the activation notification message is determined as the precoding channel after the user equipment activates uplink transmit diversity, if the activation notification message carries a precoding feedback channel; or, if the activation The precoding feedback channel of the user equipment is not carried in the notification message, and the precoding feedback channel used before the user equipment deactivates the uplink transmit diversity is determined as the precoding feedback channel after the user equipment activates the uplink transmit diversity. .
- the activation determining unit 701 is specifically configured to determine, according to the reference measurement related quantity received by the reference quantity receiving unit and the reference measurement related quantity detected by the reference quantity detecting unit. When the base station has activated the continuous connection, it is determined that the uplink transmit diversity of the UE is activated.
- the uplink transmit diversity of the UE is activated.
- the UE provided in this embodiment activates/deactivates the uplink transmit diversity of the UE according to the reference measurement related quantity of the UE.
- the RNC 802 is configured to receive an activation request indication sent by the base station 801, and notify the UE to activate uplink transmit diversity according to the activation request indication; or receive a deactivation request indication sent by the base station 801, and according to the The activation request indication notifies the UE to activate uplink transmit diversity.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/115,862 US9237464B2 (en) | 2012-01-21 | 2013-01-21 | Transmission method, apparatus, and system for uplink transmit diversity |
EP13738539.9A EP2693657B1 (en) | 2012-01-21 | 2013-01-21 | Uplink transmit diversity transmission method and base station |
BR112013032156A BR112013032156A2 (pt) | 2012-01-21 | 2013-01-21 | método de transmissão, aparelho e sistema para diversidade de transmissão de enlace ascendente |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201210019432.8 | 2012-01-21 | ||
CN201210019432.8A CN102761357B (zh) | 2011-04-29 | 2012-01-21 | 上行链路发射分集的传输方法、装置及系统 |
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WO2013107421A1 true WO2013107421A1 (zh) | 2013-07-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/070780 WO2013107421A1 (zh) | 2012-01-21 | 2013-01-21 | 上行链路发射分集的传输方法、装置及系统 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9237464B2 (zh) |
EP (1) | EP2693657B1 (zh) |
BR (1) | BR112013032156A2 (zh) |
WO (1) | WO2013107421A1 (zh) |
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CN112055417B (zh) * | 2019-06-06 | 2022-08-26 | 华为技术有限公司 | 无线通信系统、调度方法、无线通信方法及装置 |
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Also Published As
Publication number | Publication date |
---|---|
US9237464B2 (en) | 2016-01-12 |
EP2693657B1 (en) | 2018-06-13 |
US20140080422A1 (en) | 2014-03-20 |
EP2693657A4 (en) | 2014-06-18 |
EP2693657A1 (en) | 2014-02-05 |
BR112013032156A2 (pt) | 2016-12-13 |
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