CN101365166A - Method for transmitting MIMO parameter - Google Patents
Method for transmitting MIMO parameter Download PDFInfo
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- CN101365166A CN101365166A CNA2007101404040A CN200710140404A CN101365166A CN 101365166 A CN101365166 A CN 101365166A CN A2007101404040 A CNA2007101404040 A CN A2007101404040A CN 200710140404 A CN200710140404 A CN 200710140404A CN 101365166 A CN101365166 A CN 101365166A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000011664 signaling Effects 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010295 mobile communication Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 2
- 241001342562 Mimon Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
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Abstract
The invention relates to the mobile communication technical field, and discloses a transferring method of multi-input and multi-output parameters. When a position is relocated, an active wireless access network system transmits a multi-input and multi-output parameter to a target wireless access network system through signaling carrying. During the transmission of the signaling, the signaling is directly transmitted or retransmitted to the target wireless access network system through the transparent carrying of a core network. The signaling is a request message for relocation, a requirement message for relocation, a request message for switching or the combination thereof. A wireless resource controller container of the multi-input and multi-output parameters is added to 'a transparent container from the active wireless network controller to the target wireless network controller' in the signaling. The multi-input and multi-output parameters can be transmitted directly or retransmitted through the way that the core network signaling carries the parameter transparently to the target wireless access network system, so as to allow the target wireless access network system to use, thereby avoiding the physical resource reallocation on the target side.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a method for transmitting multiple input and output parameters in a wireless communication system.
Background
In order to reduce the transmission delay of packet domain data, the 3GPP protocol standard evolves the protocol architecture of the third generation mobile communication, i.e. the Radio Network Controller (RNC) moves down to the node B (nodeb), which has the functions of serving the radio network controller, controlling the radio network controller, and drifting the radio network controller, and this node B may be referred to as an enhanced node B for short.
The downward shift of the radio network controller causes the interface definition between different nodes to change, an Iur interface is adopted between the enhanced node B and the enhanced node B, an Iur interface is also adopted between the enhanced node B and the traditional Radio Network Controller (RNC), an Iu interface is adopted between the enhanced node B and the core network node, and only the Iu interface of the packet domain is supported.
In the current protocol, for the relocation process, the source wireless access network system needs to send out information through a ' relocation requirement ' signaling carried by a ' transparent container ' from a ' source wireless network controller to a target wireless network controller, and then transparently forwards the information to the target wireless access network system through a ' relocation request ' signaling carried by a core network for use by the target wireless access network system. The "transparent container from the source radio network controller to the target radio network controller" does not contain information of the physical channel, that is, after the target radio access network controller receives the relocation request, the target radio access network controller needs to reconfigure the parameters of the physical layer according to the resource allocation condition of the target radio access network controller.
Based on the architecture shown in FIG. 1, the following scenarios require relocation to occur:
(1) RRC connection is established between the user equipment and the enhanced node B or the service of the packet domain exists, but the subsequent user equipment calls the service of the circuit domain, so the enhanced node B needs to initiate the relocation process;
(2) the user equipment has the concurrence of circuit domain and packet domain services, so that the control right of the user equipment is in the traditional radio network controller RNC, but along with the release of the circuit domain services, the traditional RNC needs to initiate a relocation process to the enhanced node B because of load balancing;
(3) when the enhanced node B is used as a serving node B of a ue, the serving node B generally has the best signal strength, and has the function of serving RNC and the function of combining uplink packet data, but due to the movement of the ue, the serving node B needs to make frequent updates, and then the function of the serving RNC needs to be frequently transferred, so that a frequent relocation process is also needed.
Then, based on the new architecture that a Radio Network Controller (RNC) is moved down to a node B (node B), a deployed network may have an enhanced node B that is a node B with a carrier frequency shared by a circuit domain and a packet domain, that is, a service of the circuit domain and a service of the packet domain may use the same radio resource pool in a cell under the control of the node B, but as long as a user equipment has a service of the circuit domain, a controller connected to the RRC is in a conventional RNC, so that there is a case that the control right of the RRC is in different nodes but only one set of physical resources exists.
In order to avoid the situation that the user equipment is communicated in the same cell but the physical resource is reconfigured due to the relocation in the above-mentioned (1) and (2) situations, the source radio access network system is required to notify the target radio access network controller (or enhanced node B) of the physical channel parameter information currently configured to the user equipment.
Multiple Input Multiple Output (MIMO) is a mode used by a high-speed physical downlink shared channel, and parameters related to MIMO include:
MIMO operation mode (MIMO operation): indicating whether to start or continue using MIMO;
MIMO reporting CQI (channel quality indication) mechanism N and M scale parameter (MIMON _ CQI _ typeA/M _ CQI ratio): the ratio used for the type A reporting mode transmission in the CQI reporting mechanism;
pilot configuration of MIMO (MIMO pilot configuration): reference phases of multiple antennas of MIMO are indicated.
Then, in order to ensure data connectivity between the user equipment and the target wireless access network, the MIMO-related physical channel parameters are also notified to the target wireless access network by the source wireless access network.
Disclosure of Invention
The present invention provides a method for transferring mimo parameters, wherein a source wireless access network system transfers mimo parameters to a target wireless access network system for use by the target wireless access network system.
The invention provides a method for transmitting multi-input multi-output parameters, which comprises the following steps:
when relocation is carried out, the source wireless access network system carries the multi-input multi-output parameters through the signaling and sends the parameters to the target wireless access network system.
The method further comprises: and after receiving the signaling carrying the multi-input multi-output parameters, the target wireless access network system returns a confirmation response signaling to the source wireless access network system.
The mode of informing the target wireless access network system of the multiple-input multiple-output parameter by the source wireless access network system is any one or combination of the following modes:
the source wireless access network system directly sends the multi-input multi-output parameters carried by the signaling to the target wireless access network system; or,
and the source wireless access network system carries the multi-input multi-output parameters through the signaling and transparently forwards the parameters to the target wireless access network system through the core network through the signaling carrying.
The signaling for transferring the mimo parameters is a relocation request message, or a relocation required message, or a handover request message, or a combination thereof.
The carrying method of the signaling carrying MIMO parameter for transmitting the MIMO parameter is realized by adding the MIMO parameter in a wireless resource control container.
The signaling for transferring the MIMO parameters comprises a transparent container from the source wireless network controller to the target wireless network controller, and the transparent container from the source wireless network controller to the target wireless network controller comprises a radio resource control container added with the MIMO parameters.
The carrying method of the MIMO parameter carried by the signaling for transmitting the MIMO parameter is realized by adding the cell related to the MIMO parameter in the signaling message.
The source wireless access network system and the target wireless access network system are any one of the following wireless access network systems: a radio access network system composed of a radio access network controller and a node B, or a radio access network system composed of an enhanced node B.
The multi-input multi-output parameters include any one or combination of the following parameters:
a multiple-input multiple-output (MIMO) operation mode, which indicates whether a multiple-input multiple-output mode is started or continuously used;
the N and M proportion parameters of a reporting channel quality indication mechanism of the MIMO are proportions used for sending an A type reporting mode in a channel quality indication CQI reporting mechanism;
the pilot configuration of MIMO refers to a common pilot channel type corresponding to a reference phase channel of a second antenna when MIMO is activated.
The common pilot channel type is a primary common pilot channel or a secondary common pilot channel, and if the common pilot channel type is the secondary common pilot channel, channelization code and/or scrambling code information are/is carried.
The method for transmitting the multi-input multi-output parameters can transmit the multi-input multi-output parameters to the target wireless access network system directly or through transparent forwarding carried by core network signaling by the source wireless access network system through the signaling so as to be used by the target wireless access network system, thereby avoiding the physical resource reallocation of the target side.
Drawings
Fig. 1 is a flowchart of a source wireless access network system directly sending a mimo parameter to a target wireless access network system through signaling in an embodiment of the present invention;
fig. 2 is a flowchart of transparently forwarding a source radio access network system to a target radio access network system through core network signaling carrying by a signaling carrying multiple-input multiple-output parameter in an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The method for transmitting the information includes that a source wireless access network system informs a target wireless access network system of the multi-input multi-output related parameter information through a signaling message, the source wireless access network system directly sends the multi-input multi-output related parameter to the target wireless access network system through signaling carrying or transparently forwards the multi-input multi-output related parameter to the target wireless access network system through the signaling carrying in a wireless resource control container, and the parameter is used by the target wireless access network system.
Wherein the signaling for transferring the mimo-related parameters is a relocation request message, or a relocation required message, or a handover request message, or a combination thereof.
The method for the source radio access network system to notify the target radio access network system of the parameter information related to mimo may be any one or a combination of the following:
the source wireless access network system directly sends the parameter information related to the multiple input multiple output carried by the signaling to the target wireless access network system or transparently forwards the parameter information to the target wireless access network system carried by the signaling of the core network.
The carrying method of the input multi-output parameters is realized by adding the multi-input multi-output related parameters in a wireless resource control container.
Embodiment 1 is a flowchart of a method for directly performing message interaction between a source wireless access network system and a target wireless access network system and carrying multiple-input multiple-output related parameters, as shown in fig. 1:
step 101: a source wireless access network system decides that a relocation process needs to be initiated;
step 102: a source wireless access network system initiates a relocation request message to a target wireless access network system, wherein the relocation request message carries a transparent container from a source wireless network controller to a target wireless network controller, the transparent container from the source wireless network controller to the target wireless network controller also contains information of a wireless resource control container, and the wireless resource control container contains parameter information related to multiple inputs and multiple outputs;
step 103: the target wireless access network system returns a relocation response to the source wireless access network system.
Embodiment 2 is a flowchart of a method for a source wireless access network system to perform message interaction with a target wireless access network system through a core network, where the method carries mimo-related parameters, and is shown in fig. 2:
step 201: a source wireless access network system decides that a relocation process needs to be initiated;
step 202: a source wireless access network system initiates a relocation required message to a core network, wherein the relocation required message carries a transparent container from a source wireless network controller to a target wireless network controller, the transparent container from the source wireless network controller to the target wireless network controller also contains information of a wireless resource control container, and the wireless resource control container contains parameter information related to multiple inputs and multiple outputs;
step 203: a core network sends a relocation request message to a target wireless access network system, wherein the relocation request message carries a transparent container from a source wireless network controller to a target wireless network controller, the transparent container from the source wireless network controller to the target wireless network controller also contains information of a wireless resource control container, and the wireless resource control container contains parameter information related to multiple inputs and multiple outputs;
step 204: the target wireless access network system returns a relocation confirmation message to the core network;
step 205: the core network initiates a relocation command to the source radio access network system.
In the above embodiment, the source wireless access network system and the target wireless access network system may be any one of the following wireless access network systems: a radio access network system composed of a radio access network controller and a node B, or a radio access network system composed of an enhanced node B.
In the above embodiment, the carrying method for carrying mimo parameters in signaling for transferring mimo parameters may also be implemented by adding cells related to mimo parameters to the signaling message.
The parameter information related to the multiple input multiple output comprises any one or a combination of the following parameters: MIMO operation mode (MIMO operation), MIMO reporting CQI (channel quality indication) mechanism N and M scale parameter (MIMO N _ CQI _ typeA/M _ CQI ratio), and MIMO pilot configuration (MIMO pilot configuration). Wherein:
the MIMO operation mode refers to starting or continuously using the MIMO mode;
the reported CQI mechanism N and M proportion parameters of MIMO are the proportions used for the A type report mode sending in the CQI report mechanism;
the pilot configuration of MIMO refers to a common pilot channel type corresponding to a reference phase channel of the second antenna when MIMO is activated.
Further, the type of the common pilot channel may be a primary common pilot channel or a secondary common pilot channel; if the secondary common pilot channel is used, channelization code and/or scrambling code information also needs to be carried.
Claims (10)
1. A method of communicating multiple-input multiple-output parameters, comprising the steps of:
when relocation is carried out, the source wireless access network system carries the multi-input multi-output parameters through the signaling and sends the parameters to the target wireless access network system.
2. The method of claim 1, wherein the method further comprises:
and after receiving the signaling carrying the multi-input multi-output parameters, the target wireless access network system returns a confirmation response signaling to the source wireless access network system.
3. The method of claim 1, wherein the source radio access network system informs the target radio access network system of the multiple-input multiple-output parameter in any one or a combination of the following ways:
the source wireless access network system directly sends the multi-input multi-output parameters carried by the signaling to the target wireless access network system; or,
and the source wireless access network system carries the multi-input multi-output parameters through the signaling and transparently forwards the parameters to the target wireless access network system through the core network through the signaling carrying.
4. The method according to claim 1 or 3, wherein said signaling for transferring the MIMO parameter is a relocation request message, or a relocation required message, or a handover request message, or a combination thereof.
5. The method of claim 4, wherein the carrying method of the MIMO parameters carried by the signaling for transferring the MIMO parameters is implemented by adding the MIMO parameters in a RRC container.
6. The method as claimed in claim 5, wherein the signaling for transferring the mimo parameters includes a "source rnc to target rnc transparent container" containing a "rrc container" with mimo parameters added.
7. The method of claim 4, wherein the carrying method of the MIMO parameter carried signaling message is implemented by adding an MIMO parameter related cell to the signaling message.
8. A method according to any of claims 1-3, wherein the source and target radio access network systems are any of the following radio access network systems: a radio access network system composed of a radio access network controller and a node B, or a radio access network system composed of an enhanced node B.
9. The method of any one of claims 1-3, 5, or 6, wherein the multiple-input multiple-output parameters include any one or combination of the following:
a multiple-input multiple-output (MIMO) operation mode, which indicates whether a multiple-input multiple-output mode is started or continuously used;
the N and M proportion parameters of a reporting channel quality indication mechanism of the MIMO are proportions used for sending an A type reporting mode in a channel quality indication CQI reporting mechanism;
the pilot configuration of MIMO refers to a common pilot channel type corresponding to a reference phase channel of a second antenna when MIMO is activated.
10. The method of claim 8, wherein the common pilot channel type is a primary common pilot channel or a secondary common pilot channel, and wherein channelization code and/or scrambling code information needs to be carried if the common pilot channel type is the secondary common pilot channel.
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| CNA2007101404040A CN101365166A (en) | 2007-08-10 | 2007-08-10 | Method for transmitting MIMO parameter |
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| CNA2007101404040A CN101365166A (en) | 2007-08-10 | 2007-08-10 | Method for transmitting MIMO parameter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013067814A1 (en) * | 2011-11-10 | 2013-05-16 | 中兴通讯股份有限公司 | Multiple input multiple output mode judgment method and radio network controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067814A1 (en) * | 2011-11-10 | 2013-05-16 | 中兴通讯股份有限公司 | Multiple input multiple output mode judgment method and radio network controller |
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Application publication date: 20090211 |