CN101296497B - Coexistence message transmission method, device and terminal unit - Google Patents
Coexistence message transmission method, device and terminal unit Download PDFInfo
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- CN101296497B CN101296497B CN200710097951.5A CN200710097951A CN101296497B CN 101296497 B CN101296497 B CN 101296497B CN 200710097951 A CN200710097951 A CN 200710097951A CN 101296497 B CN101296497 B CN 101296497B
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Abstract
The invention discloses a method and a device for transmitting a coexistence message, which transmits the coexistence message by a main sub-frame of a base station. The invention also discloses terminal equipment which receives signals from an adjacent base station during the period of the main sub-frame of a non-service base station; the coexistence message of the adjacent base station is extracted from the correct received management messages transmitted by the main sub-frame of the adjacent base station; the coexistence message is reported to a service base station according to a reporting mechanism of the coexistence message. In the invention, the main sub-frame of the base station is used for transmitting the coexistence message, no special transformat needs to be designed, thus realizing the aims of being simple and occupying a few air interface resources.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a technique for transmitting coexistence messages.
Background
With the development of wireless communication technology, the demand for wireless spectrum resources is more and more strong. Since the radio spectrum resources are very limited, it is necessary to improve the utilization rate of the radio spectrum resources, especially the utilization rate of the spectrum resources in the licensed band.
In order to improve the utilization rate of the wireless spectrum resources, many communication technologies, such as cognitive radio technologies, which make full use of the idle spectrum resources, have been proposed in recent years. In the cognitive radio technology, a wireless device supporting the cognitive radio technology dynamically senses the surrounding environment and adaptively and dynamically adjusts the internal state of the wireless device according to the change of the surrounding environment. On the other hand, when a new base station initially enters the network, a certain spectrum sensing method needs to be adopted to detect whether other base stations occupy the frequency band, and if an idle channel can be detected, the channel is selected as the working channel of the new base station. If no idle channel is detected, the new base station needs to adopt a corresponding sub-frame allocation mode, such as a time-sharing shared channel allocation mode, to share a certain channel with the surrounding neighbor base stations.
Currently, there are generally several subframe types as follows: a time period of transmitting with maximum power by a system with higher priority is called a main subframe of the system, and the corresponding system is called a main system; other communication systems using the same channel in the same time slot, which is called the secondary subframe of the system, must reduce their own transmit power or even silence to avoid interference to the primary system. For the services of the terminals which are located at the center of the base station and are not interfered by the neighbors, the base stations can simultaneously transmit the services related to the terminals so as to improve the utilization rate of the frequency spectrum, and the subframe is called a common subframe or a shared subframe.
There are many sub-frame allocation methods, and taking the system shown in fig. 1 as an example, fig. 2 shows a sub-frame allocation method for implementing the time division shared channel. System a transmits data related to terminal 1 and terminal 2 in the common subframe and the shared subframe, while system B transmits data related to terminal 5 and terminal 6. In the main subframe of the system A, the system A communicates with the terminal 3, and the system B needs to reduce the transmitting power or even does not transmit at the moment, so that the interference to the system A is avoided; in the main subframe of system B, system B communicates with terminal 4, and system a needs to reduce the transmission power or even not transmit at this time, so as to avoid interference to system B.
Currently, each base station generally adopts a method of terminal-assisted interference detection to discover the conditions of surrounding neighbor base stations, so as to adjust its own transmit power in time and avoid mutual interference. Still taking the system described in fig. 1 as an example, the process of assisting interference detection by the terminal is shown in fig. 3, and includes:
the base station A broadcasts coexistence MAC layer information used for communicating with neighbors by an air interface; a terminal 4 in the coverage of a base station A detects coexistence information from an interfering neighbor base station A and transmits a detected broadcast signal of the base station A to a service base station B of the terminal; the base station B can know that the interference neighbor base station A exists according to the signal reported by the terminal 4 and informs a backbone network of detecting the interference neighbor base station A; then, the backbone network informs the base station A that an interfering neighbor base station B exists.
The prior art related to the present invention provides a method for broadcasting a coexistence MAC layer message over an air interface by a base station, which adopts the following two transmission modes:
the first transmission method is to transmit these MAC layer messages by using energy pulses sent in CSI (Coexistence Signaling Interval), i.e., binary 0 and 1 are represented by energy transmission and energy-free transmission, or binary 0 and 1 are represented by the length of pulse transmission. This approach is independent of the transmission technology employed by the physical layer and thus accommodates system communication between different physical layers.
The transmission mode needs to transmit Preamble and adopts a more robust modulation coding mode, so that the occupied transmission time is longer and the energy pulse length is longer; in addition, the coexistence signaling interval is transmitted in each frame, which results in waste of air interface resources.
The second transmission method is to use the CMI (Coexistence Message Interval) for MAC layer Message transmission, which is a time slot for pre-allocating the transmission of the Coexistence MAC layer Message, for example, in some current protocols, a time slot of about 1.9ms is reserved every 20ms, which is defined as a time slot reserved for transmitting the Coexistence MAC layer Message, but not for data transmission. The CMIs comprise uplink CMIs and downlink CMIs. The downlink CMI is used for the Base station to broadcast coexistence messages, such as BSD (Base station description information), including an IP address of the Base station, an ID of the Base station, and some other coexistence-related information, such as an RF sector number; the Uplink CMI is used for the terminal to transmit coexistence messages to the neighbor base stations, such as SSURF (Subscriber Station Uplink RF Descriptor), including the ID of the terminal serving base Station, the IP address of the serving base Station, and the like.
The coexistence MAC layer message transmitted over the air interface includes some broadcast messages, such as some messages for dynamic main subframe allocation, for example, madd (masteradvertisement Discovery descriptor), sadd (slave Advertisement Discovery descriptor), adpd (Advertisement Discovery Policy descriptor), in addition to BSD and SSURF; or MAC layer messages for coexistence neighbor communication, such as CXP-REQ-MAC (consensus Protocol request MAC message), CXP-RSP-MAC (consensus Protocol Response MAC message), etc.
As can be seen from the second transmission mode, it needs to reserve specific resources for the coexistence MAC layer message, thereby occupying valuable air interface resources; in addition, since the receiver and the sender belong to different systems, a synchronization process is not performed in advance, and in order to ensure that the receiver can reliably receive, the sender needs to perform elaborate setting on the sent message, for example, needs to include a longer Preamble, and adopts PHY profile (including a modulation mode, a coding mode, a used channel, a subcarrier and the like) negotiated in the whole network in advance, thereby increasing complexity and limiting the application range.
Disclosure of Invention
Embodiments of the present invention provide a coexistence message transmission method and apparatus, and a terminal device, which are not only simple to implement, but also occupy less air interface resources.
The embodiment of the invention is realized by the following technical scheme:
an embodiment of the present invention provides a coexistence message transmission method, including:
transmitting coexistence messages through each main subframe of a base station, or transmitting the coexistence messages in one or more main subframes of the base station after a plurality of main subframes are separated, so that a terminal receives signals from neighbor base stations during the main subframes of a non-service base station, extracts the coexistence messages of the neighbor base stations from received management messages transmitted by the main subframes of the neighbor base stations, and reports the coexistence messages to the service base station after detecting the coexistence messages of the neighbor base stations according to a reporting mechanism of the coexistence messages; or after detecting the coexistence message of the same neighbor base station for a plurality of times, reporting the coexistence message to the service base station; or after detecting the coexistence message of the neighbor base station, if the terminal reports the coexistence message of the neighbor base station to the serving base station, the reporting is not performed; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, reporting the coexistence message to the serving base station; or after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, reporting the coexistence message to the serving base station; or, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, only selecting the updated part in the coexistence message and reporting the updated part to the serving base station; or after detecting the coexistence message of the neighbor base station, and discovering that the serving base station has obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is an interfered terminal newly added to the neighbor base station;
and transmitting the coexistence message of the user through the main subframe, wherein the specific transmission mode is as follows: and allocating a management message type for the coexistence messages, and transmitting the management message type and the coexistence messages corresponding to the management message type as a management message of the base station through the main subframe, or adding the coexistence messages into a standard management message of the base station, transmitting the standard management message through the main subframe of the base station, and transmitting the coexistence messages.
An embodiment of the present invention further provides a coexistence message transmission apparatus, including:
a selecting unit, configured to select an interference-free subframe from the idle subframes; taking the non-interference subframe as a main subframe;
a transmission unit, configured to transmit a coexistence message through each main subframe of a base station, or transmit a coexistence message in one or more main subframes of a base station after every several main subframes, so that a terminal receives a signal from a neighbor base station during a main subframe of a non-serving base station, extracts the coexistence message of the neighbor base station from a received management message transmitted by the main subframe of the neighbor base station, and reports the coexistence message to the serving base station after detecting the coexistence message of the neighbor base station according to a reporting mechanism of the coexistence message; or after detecting the coexistence message of the same neighbor base station for a plurality of times, reporting the coexistence message to the service base station; or after detecting the coexistence message of the neighbor base station, if the terminal reports the coexistence message of the neighbor base station to the serving base station, the reporting is not performed; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, reporting the coexistence message to the serving base station; or after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, reporting the coexistence message to the serving base station; or, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, only selecting the updated part in the coexistence message and reporting the updated part to the serving base station; or after detecting the coexistence message of the neighbor base station, and discovering that the serving base station has obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is an interfered terminal newly added to the neighbor base station, and is specifically used for allocating a management message type for a type of coexistence message; transmitting the management message type and the corresponding coexistence message type as a management message of the base station through the main subframe; or, a kind of coexistence message is added to a standard management message of the base station; and transmitting the standard management message through a main subframe of the base station, and transmitting the coexistence message.
An embodiment of the present invention further provides a terminal device, which includes:
an acquisition unit, configured to receive a signal from a neighbor base station when a terminal is in a primary subframe period of a non-serving base station; extracting coexistence information of the neighbor base station from the received management information transmitted by the main subframe of the neighbor base station;
a reporting unit including a reporting information determining unit and a reporting information transmitting unit,
the reporting information determining unit is configured to determine reporting information according to a reporting mechanism of the coexistence message after detecting the coexistence message of the neighbor base station, where the reporting information determining unit further includes:
a first reporting information determining unit, configured to determine, according to a reporting mechanism of a coexistence message, that reporting information is the coexistence message after detecting the coexistence message of the neighbor base station; or,
a second reported information determining unit, configured to determine, according to a reporting mechanism of the coexistence message, that the reported information is the coexistence message after detecting the coexistence message of the same neighbor base station for a plurality of times; or,
a third reported information determining unit, configured to determine that there is no reported information if the terminal has reported the coexistence message of the neighbor base station to the serving base station after detecting the coexistence message of the neighbor base station; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, determining that the reported information is the coexistence message; or,
a fourth reported information determining unit, configured to determine that the reported information is the coexistence message after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated; or,
a fifth reported information determining unit, configured to determine, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, that the reported information is an updated part in the coexistence message; or,
a sixth reporting information determining unit, configured to detect a coexistence message of the neighbor base station, and find that the serving base station has obtained the coexistence message of the neighbor base station, and if the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is an interfered terminal newly added to the neighbor base station;
the reporting information transmission unit is used for immediately reporting the determined reporting information to the service base station; or when the time interval from the last time that the terminal reports the same coexistence message of the same neighbor base station exceeds a certain specific value, reporting the determined reporting information to the serving base station; or after receiving a coexistence message reporting request from the serving base station, reporting the determined reporting information to the serving base station.
It can be seen from the specific implementation scheme provided in the above embodiment of the present invention that the sharing message is transmitted using the main subframe of the base station, so that a special transmission format does not need to be designed, and therefore, compared with the prior art, the implementation is simple and fewer air interface resources are occupied.
Drawings
FIG. 1 is a schematic diagram of a system architecture provided in the background art;
FIG. 2 is a diagram illustrating a subframe allocation for implementing a time-sharing channel according to the background art;
fig. 3 is a flow chart of auxiliary interference detection provided in the background art;
FIG. 4 is a flow chart of a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fifth embodiment of the present invention.
Detailed Description
The first embodiment of the present invention is a coexistence message transmission method, which is simple to implement and occupies less air interface resources by transmitting a coexistence MAC layer message in a main subframe of a base station. The implementation flow is shown in fig. 4, and includes:
step S101, the base station selects a non-interference subframe, takes the subframe as a main subframe, and broadcasts the coexistence message of the base station through the main subframe.
The coexistence message includes: the ID of the base station; or, the IP address of the base station; or, an IP address of a proxy of the base station. May also include the antenna sector number of the base station; or, GPS (global positioning System) position information of the base station; or, a subframe number of the base station. Or, a message for dynamic main subframe allocation, such as information contained in a message type of MADD, SADD, ADPD, etc.; or coexistence MAC layer messages for communicating with neighbor base stations, such as information contained in CXP-REQ-MAC, CXP-RSP-MAC.
Step S101 may be implemented by two methods:
the first method comprises the following steps: assigning a management message type to a type of coexistence message; and transmitting the management message type and the corresponding coexistence message type as a management message of the base station through the main subframe.
For example, a management message type is respectively allocated to the coexisting MAC messages of the current BSD (including a base station ID, an IP address of a base station, or an IP address of a Proxy (Proxy) of a base station), MADD, SADD, PADD, and the like; and broadcasting the coexistence MAC message corresponding to each management message type in the main subframe of the base station.
And the second method comprises the following steps: adding a kind of coexistence message as a new information unit in a standard management message of the base station; and transmitting the standard management message through a main subframe of the base station, and transmitting the coexistence message.
For example, in an existing DL-MAP (downlink Mapping) message (including an ID of a base station), an extended message type is added for transmitting a coexistence message including an IP address of the base station or an IP address of a Proxy (Proxy) of the base station, and other information related to coexistence, such as a location of a base station GPS. Or, in the existing DL-MAP message, a new tlv (type Length value) message type, a coexistence message transmitting an IP address of the base station or an IP address of a proxy of the base station, or other information related to coexistence is added. Since the ID of the base station has already been transmitted in the existing DL-MAP, the base station ID may not be repeatedly transmitted when the coexistence message is transmitted.
A coexistence message that may be transmitted in each primary subframe of the base station; the coexistence message may also be transmitted through a certain primary subframe of the base station, that is, instead of transmitting in every primary subframe, the coexistence message may be transmitted once in a certain primary subframe that is spaced several primary subframes apart, to further save resources.
Step S102, the terminal receives signals from neighbor base stations during the main subframe period of the non-service base station; extracting coexistence messages of the neighbor base stations from received management messages transmitted by main subframes of the neighbor base stations, and reporting the coexistence messages to the service base station according to a reporting mechanism of the coexistence messages.
In step S102, the terminal may receive a signal from each non-serving base station during each main subframe of the non-serving base station, and determine a signal of the neighbor base station therefrom, or the terminal may receive a signal from each non-serving base station during a certain main subframe of the non-serving base station, and determine a signal of the neighbor base station therefrom. That is, the terminal may no longer receive the primary subframe of each non-serving base station, and may receive one or more primary subframes after every several primary subframes.
The process of reporting the coexistence message to the serving base station by the terminal may include the following several cases:
first, a terminal reports a coexistence message to a serving base station every time the terminal detects the coexistence message of a neighbor base station.
There are three occasions when the terminal reports the coexistence message to the serving base station:
the terminal can immediately report the coexistence message to the service base station; when the time interval from the last time that the terminal reports the same coexistence message of the same neighbor base station exceeds a certain specific value, reporting the coexistence message to the service base station; the coexistence message can be reported to the serving base station after receiving the coexistence message reporting request from the serving base station.
Secondly, after detecting the coexistence message of the same neighbor base station for a plurality of times, the terminal reports the coexistence message to the serving base station.
In the second case, the timing for the terminal to report the coexistence message to the serving base station is similar to the first case, and will not be described here.
Thirdly, after detecting the coexistence message of the neighbor base station, if the terminal reports the coexistence message of the neighbor base station to the serving base station, the terminal does not report; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, reporting the coexistence message to the serving base station;
in the third case, the timing for the terminal to report the coexistence message to the serving base station is similar to the first case, and will not be described here.
Fourthly, after the terminal detects the coexistence message of the neighbor base station and finds that the coexistence message of the same base station is updated, the terminal reports the coexistence message to the service base station.
In the fourth case, the timing for the terminal to report the coexistence message to the serving base station is similar to the first case, and will not be described here.
Fifthly, after detecting the coexistence message of the neighbor base station and finding that the coexistence message of the same base station is updated, the terminal only selects the updated part in the coexistence message and reports the updated part to the serving base station. In the fifth case, the timing for the terminal to report the coexistence message to the serving base station is similar to the first case, and will not be described here.
In the sixth case, after the terminal detects the coexistence message of the neighbor base station, and finds that the serving base station has already obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is a newly added interfered terminal of the neighbor base station.
In the sixth case, the timing for the terminal to report the coexistence message to the serving base station is similar to the first case, and will not be described here.
Step S102 is explained below by way of example:
assuming that the coexistence message is transmitted as a part of the information element of the standard DL-MAP message, the neighbor base station broadcasts the DL-MAP message including the coexistence message, and the process of the terminal receiving the DL-MAP message broadcast by the neighbor base station is as follows:
the terminal firstly carries out downlink physical layer synchronization to obtain the frame header position and the position of each subframe;
after the head of each sub-Frame comes, the terminal synchronizes to the head of the sub-Frame and receives DL-FCH (Down Link Frame Control header) after Preamble;
for the OFDMA physical layer, the terminal needs to determine the received cell signals according to the correlation result by using the correlation of all local Preamble sequences at each frame header and subframe header, and further solve the DL-FCH of these cells. For example, the terminal needs to use the correlation of all local Preamble sequences at each frame header and subframe header, take the cell ID and segment ID corresponding to the Preamble sequence corresponding to the correlation peak with a certain threshold, and further solve the DL-FCH of these cells.
If the DL-FCH can be correctly decoded, decoding a first burst according to the information of the DL-FCH, and if the DL-FCH can be correctly decoded, extracting coexistence information of a neighbor base station from the obtained DL-MAP information; if the DL-FCH cannot be correctly decoded, or the first burst cannot be correctly decoded, then the other data after this subframe is discarded until the next subframe header.
When the terminal extracts the coexistence message of the neighbor base station from the correctly received DL-MAP message, the coexistence message which needs to be reported to the service base station is determined according to the reporting mechanism, and the coexistence message is reported to the service base station at the several reporting occasions.
Step S103, after the service base station obtains the ID of the neighbor base station reported by the service terminal of the service base station, the neighbor base station is considered as the interference neighbor base station of the service base station.
Then, after further obtaining the IP address of the interfering neighbor base station or the IP address of the interfering neighbor base station agent, the serving base station may communicate with the neighbor base station through a backbone network or an internet.
In order to support uplink coexistence message transmission, a second embodiment of the present invention provides another coexistence message transmission method, in which a terminal that can receive signals of a serving base station and a neighbor base station can access to the neighbor base station as a relay terminal, request the neighbor base station to allocate uplink resources for transmitting a relay message to itself, and then transmit an uplink coexistence message to the neighbor base station using the allocated uplink resources.
The access procedure of the terminal as a relay terminal to the neighbor base station is the same as the procedure of the ordinary terminal to access the base station, except that the terminal needs to inform the base station in a certain way (for example, through an information unit) that the terminal accesses for relaying the message, not for requesting the service.
A third embodiment of the present invention provides a coexistence message transmission apparatus, whose structure is shown in fig. 5, including: a selection unit and a transmission unit.
The signal transfer relationship among the units is as follows:
the selection unit selects an interference-free subframe from the idle subframes; taking the non-interference subframe as a main subframe;
the transmission unit transmits the coexistence message with the maximum transmission power using the primary subframe determined by the selection unit. Two schemes can be adopted during the specific treatment, as follows:
first, a management message type is allocated for a type of coexistence message; and transmitting the management message type and the corresponding coexistence message type as a management message of the base station through the main subframe. The specific implementation is the same as that described in relation to the first embodiment and will not be described in detail here.
Secondly, a kind of coexistence message is added to a standard management message of the base station; and transmitting the standard management message through a main subframe of the base station, and transmitting the coexistence message. The specific implementation is the same as that described in relation to the first embodiment and will not be described in detail here.
A fourth embodiment of the present invention provides a terminal device, whose structure is shown in fig. 6, including: an acquisition unit and a reporting unit. Wherein the reporting unit comprises: a report information determining unit and a report information transmission unit.
The signal transfer relationship among the units is as follows:
the acquisition unit receives signals from neighbor base stations during a main subframe of a non-service base station of a terminal; extracting coexistence information of the neighbor base station from the correctly received management information transmitted by the main subframe of the neighbor base station;
wherein the acquisition unit may receive a signal from a neighbor base station during each primary subframe of a non-serving base station of the terminal; signals from neighbor base stations may also be received during some primary subframe of the terminal's non-serving base station. That is, the acquiring unit may not receive the primary subframe of the non-serving base station of each terminal any more, and may receive one or more primary subframes after several primary subframes.
And the reporting unit is used for reporting the coexistence message extracted by the acquisition unit to a service base station according to a reporting mechanism of the coexistence message. The processing conditions are as follows:
after detecting the coexistence message of the neighbor base station, the reporting information determining unit determines the coexistence message that can be reported according to the reporting mechanism of the coexistence message, which is specifically as follows:
determining the reported information as the coexistence message after detecting the coexistence message of the neighbor base station through a first reported information determining unit according to a reporting mechanism of the coexistence message; or,
determining the reported information as the coexistence message after detecting the coexistence message of the same neighbor base station for a plurality of times through a second reported information determining unit according to a reporting mechanism of the coexistence message; or,
after detecting the coexistence message of the neighbor base station, determining that no information is reported if the terminal has reported the coexistence message of the neighbor base station to the serving base station through a third reported information determining unit; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, determining the reported information as the coexistence message; or,
after detecting the coexistence message of the neighbor base station through a fourth reported information determining unit and finding that the coexistence message of the same base station is updated, determining the reported information as the coexistence message; or,
through a fifth reported information determining unit, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, determining the reported information as an updated part in the coexistence message; or,
and after detecting the coexistence message of the neighbor base station through the sixth reported information determining unit, finding that the serving base station has obtained the coexistence message of the neighbor base station, and if the serving base station does not know that the terminal is the interfered terminal, determining that the reported information is the newly added interfered terminal of the neighbor base station.
After the reported information determining unit determines the coexistence message which can be reported, the reported information transmission unit can report the coexistence message to the service base station at different time. If so, immediately reporting the determined reporting information to the service base station; or when the time interval from the last time that the terminal reports the same coexistence message of the same neighbor base station exceeds a certain specific value, reporting the determined reporting information to the serving base station; or after receiving a coexistence message reporting request from the serving base station, reporting the determined reporting information to the serving base station.
A fifth embodiment of the present invention provides a terminal device, whose structure is shown in fig. 7, including: a relay access request unit and a message transmission unit.
The signal transfer relationship among the units is as follows:
the relay access request unit is used as a relay unit to access to a neighbor base station and request the neighbor base station to distribute uplink resources for transmitting relay messages;
and the message transmission unit transmits the uplink coexistence message to the neighbor base station by using the uplink resource requested by the relay access request unit.
It can be seen from the foregoing specific implementation of the embodiments of the present invention that the sharing message is transmitted using the main subframe of the base station, so that a special transmission format does not need to be designed, and therefore, compared with the prior art, the implementation is simple and less air interface resources are occupied.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A method of coexistence message transmission, comprising:
the base station selects an interference-free subframe as a main subframe;
transmitting coexistence messages through each main subframe of a base station, or transmitting the coexistence messages in one or more main subframes of the base station after a plurality of main subframes are separated, so that a terminal receives signals from neighbor base stations during the main subframes of a non-service base station, extracts the coexistence messages of the neighbor base stations from received management messages transmitted by the main subframes of the neighbor base stations, and reports the coexistence messages to the service base station after detecting the coexistence messages of the neighbor base stations according to a reporting mechanism of the coexistence messages; or after detecting the coexistence message of the same neighbor base station for a plurality of times, reporting the coexistence message to the service base station; or after detecting the coexistence message of the neighbor base station, if the terminal reports the coexistence message of the neighbor base station to the serving base station, the reporting is not performed; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, reporting the coexistence message to the serving base station; or after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, reporting the coexistence message to the serving base station; or, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, only selecting the updated part in the coexistence message and reporting the updated part to the serving base station; or after detecting the coexistence message of the neighbor base station, and discovering that the serving base station has obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is an interfered terminal newly added to the neighbor base station;
the specific transmission mode is as follows: and allocating a management message type for the coexistence messages, and transmitting the management message type and the coexistence messages corresponding to the management message type as a management message of the base station through the main subframe, or adding the coexistence messages into a standard management message of the base station, transmitting the standard management message through the main subframe of the base station, and transmitting the coexistence messages.
2. The method as claimed in claim 1, wherein the procedure for the terminal to receive signals from neighbor base stations during the primary subframe of the non-serving base station specifically includes:
the terminal receives signals from neighbor base stations during each main subframe of the non-serving base station; alternatively, the terminal receives a signal from a neighbor base station during a certain primary subframe of the non-serving base station.
3. The method of claim 1, wherein the process of reporting the coexistence message to the serving base station specifically comprises:
the terminal immediately reports the coexistence message to the serving base station; or,
when the time interval from the last time that the terminal reports the same coexistence message of the same neighbor base station exceeds a certain specific value, reporting the coexistence message to a service base station; or,
and after receiving a coexistence message reporting request from the service base station, reporting the coexistence message to the service base station.
4. The method of any of claims 1 to 3, wherein the coexistence message comprises: the ID of the base station; or, the IP address of the base station; or, an IP address of a proxy of the base station.
5. The method of claim 4, wherein the coexistence message further comprises: an antenna sector number of the base station; or, GPS location information of the base station; or, a subframe number of the base station; or, a message for dynamic master subframe allocation; or a coexistence MAC layer message for communicating with a neighbor base station.
6. The method of claim 1, further comprising:
and after the service base station obtains the ID of the neighbor base station reported by the service terminal of the service base station, the neighbor base station is considered as the interference neighbor base station of the service base station.
7. A coexistence message transmission apparatus, comprising:
a selecting unit, configured to select an interference-free subframe from the idle subframes; taking the non-interference subframe as a main subframe;
a transmission unit, configured to transmit a coexistence message through each main subframe of a base station, or transmit a coexistence message in one or more main subframes of a base station after every several main subframes, so that a terminal receives a signal from a neighbor base station during a main subframe of a non-serving base station, extracts the coexistence message of the neighbor base station from a received management message transmitted by the main subframe of the neighbor base station, and reports the coexistence message to the serving base station after detecting the coexistence message of the neighbor base station according to a reporting mechanism of the coexistence message; or after detecting the coexistence message of the same neighbor base station for a plurality of times, reporting the coexistence message to the service base station; or after detecting the coexistence message of the neighbor base station, if the terminal reports the coexistence message of the neighbor base station to the serving base station, the reporting is not performed; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, reporting the coexistence message to the serving base station; or after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, reporting the coexistence message to the serving base station; or, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, only selecting the updated part in the coexistence message and reporting the updated part to the serving base station; or after detecting the coexistence message of the neighbor base station, and discovering that the serving base station has obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is a newly added interfered terminal of the neighbor base station, and is specifically used for allocating a management message type for a type of coexistence message; transmitting the management message type and the corresponding coexistence message type as a management message of the base station through the main subframe; or, a kind of coexistence message is added to a standard management message of the base station; and transmitting the standard management message through a main subframe of the base station, and transmitting the coexistence message.
8. A terminal device, comprising:
an acquisition unit, configured to receive a signal from a neighbor base station when a terminal is in a primary subframe period of a non-serving base station; extracting coexistence information of the neighbor base station from the received management information transmitted by the main subframe of the neighbor base station;
a reporting unit including a reporting information determining unit and a reporting information transmitting unit,
the reporting information determining unit is configured to determine reporting information according to a reporting mechanism of the coexistence message after detecting the coexistence message of the neighbor base station, where the reporting information determining unit further includes:
a first reporting information determining unit, configured to determine, according to a reporting mechanism of a coexistence message, that reporting information is the coexistence message after detecting the coexistence message of the neighbor base station; or,
a second reported information determining unit, configured to determine, according to a reporting mechanism of the coexistence message, that the reported information is the coexistence message after detecting the coexistence message of the same neighbor base station for a plurality of times; or,
a third reported information determining unit, configured to determine that there is no reported information if the terminal has reported the coexistence message of the neighbor base station to the serving base station after detecting the coexistence message of the neighbor base station; if the terminal never reports the coexistence message of the neighbor base station to the serving base station, determining that the reported information is the coexistence message; or,
a fourth reported information determining unit, configured to determine that the reported information is the coexistence message after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated; or,
a fifth reported information determining unit, configured to determine, after detecting the coexistence message of the neighbor base station and when finding that the coexistence message of the same base station is updated, that the reported information is an updated part in the coexistence message; or,
a sixth reporting information determining unit, configured to detect a coexistence message of the neighbor base station, and find that the serving base station has obtained the coexistence message of the neighbor base station, and if the serving base station does not know that the terminal is an interfered terminal, the terminal reports to the serving base station that the terminal is an interfered terminal newly added to the neighbor base station;
the reporting information transmission unit is used for immediately reporting the determined reporting information to the service base station; or when the time interval from the last time that the terminal reports the same coexistence message of the same neighbor base station exceeds a certain specific value, reporting the determined reporting information to the serving base station; or after receiving a coexistence message reporting request from the serving base station, reporting the determined reporting information to the serving base station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710097951.5A CN101296497B (en) | 2007-04-23 | 2007-04-23 | Coexistence message transmission method, device and terminal unit |
| PCT/CN2008/000694 WO2008128420A1 (en) | 2007-04-23 | 2008-04-03 | A method, apparatus and terminal unit for transmitting coexistence message |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710097951.5A CN101296497B (en) | 2007-04-23 | 2007-04-23 | Coexistence message transmission method, device and terminal unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101296497A CN101296497A (en) | 2008-10-29 |
| CN101296497B true CN101296497B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710097951.5A Expired - Fee Related CN101296497B (en) | 2007-04-23 | 2007-04-23 | Coexistence message transmission method, device and terminal unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101296497B (en) |
| WO (1) | WO2008128420A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1965513B (en) * | 2004-05-01 | 2014-11-26 | 桥扬科技有限公司 | Method and apparatus for communicating in time division duplex |
| CN100544470C (en) * | 2005-07-05 | 2009-09-23 | 华为技术有限公司 | The compossibility base station is found neighboring station and is set up the method for contact with neighboring station when initializing |
| KR20070027999A (en) * | 2005-08-30 | 2007-03-12 | 삼성전자주식회사 | Resource Allocation Method and Received Allocation Method in a Broadband Multiple Access Communication System |
| CN1925662A (en) * | 2005-09-02 | 2007-03-07 | 华为技术有限公司 | Method for collecting interfering status information of terminals by concomitant base station |
-
2007
- 2007-04-23 CN CN200710097951.5A patent/CN101296497B/en not_active Expired - Fee Related
-
2008
- 2008-04-03 WO PCT/CN2008/000694 patent/WO2008128420A1/en active Application Filing
Non-Patent Citations (2)
| Title |
|---|
| Mariana Goldhamer等.BS IP address transmission using Cognitive Signaling and some editorials.《IEEE C802.16h-05/032》.2005,1-10. * |
| Mariana Goldhamer等.MAC support and the general structure of the Coexistence Protocol messages.《IEEE C802.16-06/058r1》.2006,1-10. * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008128420A1 (en) | 2008-10-30 |
| CN101296497A (en) | 2008-10-29 |
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