WO2008104111A1

WO2008104111A1 - The method and system for united relay network, the rs and the ms

Info

Publication number: WO2008104111A1
Application number: PCT/CN2007/070853
Authority: WO
Inventors: Yanling Lu; Ting Li; Liangliang Zhang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-02-27
Filing date: 2007-10-09
Publication date: 2008-09-04
Also published as: CN101257704A; CN101518118A; CN101257704B

Abstract

The method and system for united relay network, and two kinds of RS and one MS are disclosed, in which the united neighbor station is used as a RS, the united neighbor station sends the ranging request from the MS to the neighbor BS. The neighbor station receives the ranging request, and sends the ranging response to the MS or the united neighbor station, so the first united process of using the united neighbor station as a RS is achieved. At the same time, another kind of method and system for united relay network are disclosed, in which the united neighbor station is used as a RS, the united neighbor station receives the CDMA code from theMS, and sends the report about the ranging parameters to the neighbor BS. The neighbor BS combines the report received, and sends it to the MS, so the second united process of using the united neighbor station as a RS is achieved.

Description

Joint method, system, relay station and mobile station in relay network

The present invention relates to wireless communication technologies, and more particularly to a joint method, system, relay station and mobile station in a relay network. Background of the invention

In order to facilitate the selection of the handover target and accelerate the handover process to the potential target base station (BS), the mobile station (MS) can obtain the ranging status and the service availability parameter of the MS at the target base station through the joint operation during the execution of the scanning process.

Joint operations can be divided into three types: level 0, level 1 and level 2 combinations. This paper mainly deals with the joint operations of Level 1 and Level 2, so the level 0 joint is no longer described.

Before the joint operation is performed, if the serving base station requires the MS to perform the level 1 or level 2 joint operation, the serving base station first needs to request the ranging parameter required for the joint to the federated neighbor station, that is, the ranging parameter negotiation process needs to be performed. If the joint neighbor station can provide sufficient resources during the ranging parameter negotiation process, the MS will be assigned ranging parameters, including CDMA code, transmitter offset, ranging area, and aggregation time. If you cannot allocate enough resources, the MS can only perform lower level joint operations. When only level 0 unions can be assigned, the ranging parameters cannot be assigned.

In the level 1 or level 2 association, each neighbor BS to which the MS is to perform the joint pre-allocates a unique initial CDMA code and transmitter offset for the MS, and transmits it to the serving BS through the backbone network. The serving BS will coordinate the neighbor BSs so that the ranging areas allocated by the respective neighbor BSs do not overlap or are not too compact. The aggregation time is a frame offset value, which is numerically equal to: The frame number of the dedicated ranging transmitter that is recommended for the joint neighboring station for the MS - the serving BS sends Frame number of MOB_SCN-RSP.

The ranging parameters obtained during the ranging parameter coordination process are provided by the serving BS to the MS through a scan response message. In a multi-hop wireless relay communication system, the MS may access the network through the RS, that is, the joint neighbor station may be an RS. However, the joint process of the joint neighbor station as the RS is not given in the prior art. In addition, if the jointed RS can independently schedule the ranging parameters, the service BS of the federated RS may not be able to know the ranging parameters of the jointed RS. In this case, the prior art is limited to the ranging parameter negotiation process between the backbone networks and will not be able to meet the parameter negotiation requirements in the joint process of level 1 and level 2. Summary of the invention

In view of this, the embodiment of the present invention provides a joint method in a relay network, and on the other hand, provides a joint system, a relay station RS, and a mobile station in a relay network, so that the multi-hop wireless relay network can support level 1 Joint operation with level 2.

The joint method in the relay network provided by the embodiment of the present invention is that the federated neighbor station is the relay station RS, and the method includes the following steps:

After receiving the ranging request message from the mobile station MS by the joint neighbor station, transmitting the ranging request message to the serving BS of the federated neighbor station;

The serving BS of the federated neighbor station receives the ranging request message, and sends a ranging response message to the MS or the federated neighbor station.

Another joint method in the relay network provided by the embodiment of the present invention is that the joint neighbor station is the relay station RS, and the method includes the following steps:

After receiving the CDMA code from the mobile station MS, the joint neighbor station sends a ranging parameter report message to the serving base station BS of the joint neighbor station, where the message carries the ranging parameter and the ranging status that need to be adjusted;

If the serving BS of the federated neighbor station is the serving BS of the MS, the The serving BS of the joint neighbor station sends the received ranging parameter report message to the MS; if the serving BS of the federated neighbor station is the neighbor BS of the MS, the serving BS of the federated neighbor station Sending the received ranging parameter report to the serving BS of the MS; the serving BS of the MS sends the received ranging parameter report to the MS.

A joint system in a relay network according to an embodiment of the present invention includes: a federated neighboring station, a serving BS of a joint neighboring base station, and a mobile station MS, wherein the federated neighbor station is a relay station RS,

The federated neighbor station is configured to receive a ranging request message from the MS, and send the ranging request message to the serving BS of the federated neighbor base station;

The serving BS of the joint neighboring base station is configured to receive the ranging request message, and send a ranging response message to the MS or the federated neighbor station;

The MS, configured to send a ranging request message to the federated neighbor station; receive a ranging response message from a serving BS of the federated neighbor base station or a joint neighbor station.

A relay station RS provided by an embodiment of the present invention includes:

a ranging request transceiver unit, configured to receive a ranging request message from the MS, send the ranging request message to a serving BS of the RS, receive a ranging response message from the serving BS of the RS, and It is sent to the MS;

And a parameter negotiation unit, configured to receive a ranging parameter allocation request sent by the serving BS of the RS, and return a ranging parameter allocation response to the serving BS of the RS.

Another relay station RS provided by the embodiment of the present invention includes:

a measurement status reporting unit, configured to receive a CDMA code from the MS, and report the measurement status of the CDMA code to a serving BS of the RS;

The first ranging request transceiver unit is configured to receive a ranging request message from the MS, and send the ranging request message to the serving BS of the RS.

A joint system in another relay network provided by an embodiment of the present invention includes: a neighboring station, a serving BS and a mobile station MS of the joint neighbor station, and the federated neighbor station is a relay station RS,

The federated neighbor station is configured to receive a CDMA code from the MS, and send a ranging parameter report message to the serving BS of the federated neighbor station, where the message carries a ranging parameter and a ranging state that need to be adjusted;

The serving BS of the federated neighbor station is configured to send the received ranging parameter report message to the MS when it is the serving BS of the MS, and pass the neighboring BS of the MS when it is itself The serving BS of the MS sends the received ranging parameter report message to the MS;

The MS is configured to send a CDMA code to the federated neighbor station; and receive a ranging parameter report message sent by its own service BS.

The mobile station MS is configured to send a ranging request message to the federated neighbor station, and receive a measurement response message from the service BS of the federated neighbor station or the joint neighbor station.

It can be seen from the foregoing technical solutions that the joint method, system, relay station and mobile station in the relay network provided by the embodiment of the present invention can support the joint operation of the Level 1 and Level 2 of the RS by the joint neighbor station. BRIEF DESCRIPTION OF THE DRAWINGS

1 (a) is a flowchart of a case of a joint level 1 method in a relay network according to Embodiment 1 of the present invention;

1(b) is a flowchart showing another case of a level 1 joint method in a relay network according to Embodiment 1 of the present invention;

2 is a flowchart of a level 1 joint method in a relay network according to Embodiment 2 of the present invention; FIG. 3 is a diagram of a level 2 joint method in a relay network according to Embodiment 3 of the present invention; Flow chart of the situation;

Figure 3 (b) is a flow chart showing another situation of the two-level joint method in the relay network according to the third embodiment of the present invention;

4 is a structural diagram of a level 1 joint system in a relay network according to an embodiment of the present invention;

5 is a structural diagram of a joint neighbor station of the system shown in FIG. 4 being a non-transparent RS; FIG. 6 is a structural diagram of a joint neighbor station of the system shown in FIG. 4 being a transparent RS; FIG. 7 is a block diagram of an embodiment of the present invention. A block diagram of a 2-level joint system in the network. Mode for carrying out the invention

In order to make the objects, technical solutions and advantageous effects of the present invention more comprehensible, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings.

In a multi-hop relay network, there are two scheduling modes: centralized scheduling mode and distributed scheduling mode. In the centralized scheduling mode, all link bandwidths are centrally allocated by the base station (BS); in the distributed scheduling mode, the BS only allocates the bandwidth of the link between the MS or the RS directly communicating with the BS, and the remaining channel bandwidth Assigned by the corresponding non-transparent RS. The non-transparent RS is an RS that can independently generate a downlink broadcast message, and the corresponding transparent RS is an RS that cannot independently generate a downlink broadcast message.

In the distributed scheduling mode, the service BS of the non-transparent RS cannot obtain the scheduling of the channel by the non-transparent RS in full. If the service BS of the non-transparent RS needs to know the allocation of the non-transparent RS to the channel resources, an inquiry is required.

Joint operations in a multi-hop relay network can also be divided into three levels: level 0, level 1 and level 2. In the joint operation, the ranging parameter request is initiated when the serving BS of the MS determines that the M S is to perform the level 1 or level 2 association.

After the ranging parameter request process ends, the MS performs a specific joint operation according to the joint level assigned to the MS by the federated neighbor station. At this point, the MS can perform level 0, level 1 or level 2 Operation.

Because in the joint operation of level 0, the MS can only perform ranging in the contention-based ranging configuration, which is the same as the initial ranging process that the MS performs when it first enters the network. This is a prior art and will not be described here.

The level 1 joint method provided by the embodiment of the present invention includes at least the following steps:

After receiving the ranging request message from the mobile station MS by the joint neighbor station, the ranging request message is sent to the serving BS of the federated neighbor station;

The serving BS of the federated neighbor station receives the ranging request message and transmits a ranging response message to the MS or the associated neighbor station.

If the joint neighbor station is a transparent RS, the step of transmitting the ranging response message is: the serving BS of the connected neighbor station sends a ranging response message to the MS.

If the joint neighbor station is a non-transparent RS, the step of transmitting the ranging response message is: the serving BS of the joint neighbor station sends a ranging response message to the federated neighbor station. In this case, the method further includes: transmitting, by the federated neighbor station, a ranging response message from the serving BS of the federated neighbor station to the MS.

When the serving BS of the joint neighbor station is the neighbor BS of the MS, before the joint neighbor station receives the ranging request message, the method further includes:

The neighboring BS of the MS performs the ranging parameter negotiation with the neighboring BS of the MS, and the neighboring BS of the MS sends the negotiated ranging parameter to the serving BS of the MS, and the serving BS of the MS sends the received ranging parameter that satisfies the requirement to the MS. ;

The MS sends the CDMA code carried therein to the connected neighbor station according to the received ranging parameter;

The CDMA code from the MS is received by the joint neighbor station to determine the ranging status, and the ranging response message is sent to the MS. If the ranging status carried in the message is successful, the joint neighbor station allocates the uplink for transmitting the ranging request to the MS. Link bandwidth When receiving the ranging response message with the ranging status as successful and the uplink bandwidth allocated for itself, the MS sends a ranging request message to the federated neighbor station.

When the serving BS of the joint neighbor station is the serving BS of the MS, before the joint neighbor station receives the ranging request message, the method further includes:

The federated neighbor station negotiates the ranging parameters with the serving BS of the MS, and the serving BS of the MS sends the received ranging parameters that meet the requirements to the MS;

The CDMA code from the MS is received by the joint neighbor station to determine the ranging status, and the ranging response message is sent to the MS. If the ranging status carried in the message is successful, the joint neighbor station allocates the uplink for transmitting the ranging request to the MS. Link bandwidth

When the MS receives the ranging response message with the ranging status as successful and the uplink bandwidth allocated for itself, the MS sends a ranging request message to the federated neighbor station.

It should be noted that the serving BS of the joint neighbor station may be the serving BS of the MS or the neighbor BS of the MS. During a joint operation, there may be multiple federated neighbor stations. Among these joint neighbor stations, the serving BSs that may be partially connected to the neighboring stations are the serving BSs of the MS, and the serving BSs of the partially connected neighboring stations are the neighbors of the MS. BS.

Fig. 1 (a) is a flow chart showing a state of a joint method of a level 1 in a relay network according to a first embodiment of the present invention. In this process, the joint neighbor station is a non-transparent RS, and the serving BS of the joint neighbor station is a neighbor BS of the MS; the service BS in this embodiment refers to the service BS of the MS. The process includes the following steps:

Step 101: The neighbor BS sends a ranging parameter allocation request message to the federated neighbor station, where the message includes a joint level of the MS identifier and the request.

In this embodiment, the neighbor BS refers to the neighbor BS of the MS, and the neighbor BS is the serving BS of the federated neighbor station. If the joint neighboring station is the BS, the negotiation process of the ranging parameter is the same as that in 16e, and details are not described herein again.

If the federated neighbor station is the RS under the serving BS, that is, the serving BS of the joint neighbor station is the serving BS of the MS, the serving BS of the MS directly sends a ranging parameter allocation request to the federated neighbor station, as shown in FIG. 1 (b) In step 101, FIG. 1(b) is a flowchart of another case of the level 1 joint method in the relay network according to the first embodiment of the present invention.

Step 102: The federated neighbor station responds to the ranging parameter allocation response message, where the message includes the MS identifier of the allocation parameter and the joint level assigned to the MS. If the joint level of the allocation is level 1 or level 2, the allocation needs to be included. Ranging parameters, ranging parameters include CDMA ranging code, aggregation time, and ranging area transmitter bias. Corresponding to step 101, when the joint neighbor station is the neighbor BS of the MS, the joint neighbor station responds to the ranging parameter allocation response message to the MS neighbor BS, as shown in step 102 in Fig. 1 (a). When the neighbor BS receives the ranging parameter allocation response message, it transmits it to the serving BS through the backbone network.

If the federated neighbor station is the RS under the serving BS, the serving BS directly communicates with the federated neighbor station, and does not have to pass the backbone network, that is, the federated neighbor station responds to the ranging service parameter allocation response message to the serving BS of the MS, as shown in FIG. 1 (b) in step 102, as shown.

The serving BS determines whether the received ranging parameter satisfies the requirement. If the requirement is met, the ranging parameter negotiation process ends, and the serving BS may generate a scanning response message for the negotiated ranging parameter, or may be used for other operations. If the requirements are not met, the serving BS may require all neighbor BSs to request parameter negotiation from the federated neighbor station again, or may request parameter negotiation from the neighbor BS where the joint neighbor station is located to the unsatisfied part.

The above parameter negotiation process continues until the service BS determines that the assigned ranging parameter satisfies the requirement, or the parameter negotiation request reaches a preset number of times, or the parameter negotiation time exceeds a preset time length. If the joint neighbor station does not receive the ranging parameter allocation request sent by the neighbor BS again within a certain period of time, the parameter allocation is considered successful, and the preparation is as follows. The content of the response parameter in the ranging parameter sent in the last time is sent, and the subsequent operations are performed.

Step 103: The serving BS will coordinate the successful ranging parameters, including: the CDMA code, the transmission opportunity offset, and the aggregation time, which are carried in the scan response (MOB_SCN-RSP) message and sent to the MS.

Step 104: The MS instructs the frame indicated by the aggregation time to synchronize with the federated neighbor station, reads the UL-MAP message sent on the frame, and extracts the ranging method and the ranging area therefrom.

Step 105: The MS determines the transmitter of the CDMA code, and sends the CDMA code indicated by the serving BS to the determined neighboring station at the determined transmitter.

If the dedicated ranging area is set by the joint neighbor station, the MS will offset the domain-defined offset by the dedicated ranging range defined by the UL-MAP message of the joint neighbor station and the scan response message of the serving BS. Determine the transmitter that will transmit the dedicated ranging code.

If the federated neighbor station only sets the normal ranging area, the MS will transmit the assigned ranging code in the area, so that the MS will also ignore the transmitter's bias in the scan response message received from the serving BS during joint coordination. The value of the field.

If the MS fails to obtain the UL_MAP message at the first frame after the end of the aggregation time, the MS will abort the level 1 association process that is attempting to proceed with the currently associated neighbor station. After aborting, the MS may perform a level 0 union with the BS.

Step 106: The RNG-RSP message is directly sent to the MS by the joint neighbor station. Included in this message are the ranging status, such as success, continuation, cancellation or re-ranging, and the ranging parameters that need to be adjusted.

At this time, the joint neighbor station does not know which MS is received by the received CDMA code, so the generated RNG-RSP message is a broadcast message; and the MS determines whether the CDMA code and the transmitter carried by the received RNG-RSP message are It will be the same as the CDMA code and transmitter previously transmitted by itself. If it is the same, it is determined that the message is transmitted to itself. At this time, the MS will perform different operations according to the ranging status in the RNG-RSP message: if the ranging status To continue, step 107 is performed.

Step 107: The MS adjusts the CDMA transmission parameter according to the ranging parameter that needs to be adjusted, and continues the CDMA ranging process until the CDMA code of the RNG-RSP message that can cause the transmission state to be successful is received by the joint neighbor station. If the CDMA code is received by the joint neighbor station, the decision may be sent to the successful RNG-RSP message, and step 108 is performed; if the ranging state is determined to be canceled, the ranging process is cancelled, and the process ends; If the status is re-ranging, the ranging process is restarted, for example, returning to step 105 to continue execution.

Step 108: The joint neighboring station sends a RNG-RSP cancellation step 109 to the MS, and the federated neighbor station allocates an uplink bandwidth to the MS through the UL-MAP broadcast message.

The order of steps 108 and 109 is not fixed and can be determined by the system depending on the situation. Step 110: When receiving the RNG-RSP message with the UL bandwidth and the ranging status as successful, the MS transmits the service BS identification information (ID) and the MS MAC address to the federated neighbor station on the allocated uplink bandwidth. RNG-REQ message for information.

Step 111: The federated neighbor station sends the received RNG-REQ message to the serving BS of the federated neighbor station.

If the MS with multiple identical serving BS IDs is sent by the joint neighbor station to send RNG-REQ messages, the federated neighbor station may further merge the messages into one message, and send RNGs to the serving BSs of the federated neighbor stations for multiple MSs. -REQ information.

The service BS of the joint neighbor station in Figure 1 (a) is the neighbor BS of the MS. If the serving BS of the joint neighbor station is the serving BS of the MS, then the step is as shown in step 111 of Figure 1 (b).

Step 112: After receiving the RNG-REQ message by the serving BS of the joint neighbor station, the basic CID and the main management CID allocated to the MS are placed in the RNG-RSP message, and may also be placed. The service level advancement parameter is sent to the federated neighbor station.

The service BS of the joint neighbor station in Figure 1 (a) is the neighbor BS of the MS. If the serving BS of the joint neighbor station is the serving BS of the MS, then the step is as shown in step 112 of Figure 1 (b).

The serving BS of the joint neighbor station may be the neighbor BS of the MS or the serving BS of the MS. During a joint operation, there may be multiple federated neighbor stations, which may be partially under the neighbor BS of the MS and the other part under the MS BS of the MS.

If the joint neighbor station performs a joint operation with a plurality of MSs, the federated neighbor station needs to split the joint response information of the plurality of MSs into response information corresponding to each MS.

Step 113: The joint neighbor station sends the response information related to the MS in the received RNG-RSP message to the MS.

2 is a flowchart of a level 1 joint method in a relay network according to Embodiment 2 of the present invention. In the process, the joint neighboring station is a transparent RS. If the transparent RS is in the current cell, the ranging parameter negotiation process is not required. Otherwise, the same ranging parameter negotiation process as in the prior art is adopted.

The serving BS of the MS coordinates the ranging parameters provided to the MS by the serving BS of the joint neighbor station through the backbone network. In this embodiment, the serving BS of the joint neighbor station is the neighbor BS of the MS, and the following is given after the ranging parameter negotiation. The steps of the level 1 union include:

Steps 201 and 202 are the same as steps 104 and 105 in Fig. 1, and will not be described again. Step 203: After receiving the CDMA code from the MS by the joint neighbor station,

The REL_RNG_REQ message reports the measurement of the CDMA code to the neighbor BS, including the power, time, frequency, and ranging status that need to be adjusted, such as success, continuation, cancellation, or re-measurement.

Step 204: The neighbor BS finds the most suitable CDMA according to the CDMA code measurement condition in the received REL_RNG_REQ message and/or the CDMA code status received by itself. Code reception status. The path corresponding to this optimal state is the best path. It is assumed here that the best path is the path received through this non-transparent RS. At this time, the neighbor BS generates an RNG_RSP message according to the state of the CDMA code on the best path, and transmits the message to the MS.

The RNG_RSP message includes a ranging state and a ranging parameter that needs to be adjusted. At this time, the joint neighbor station does not know which MS the received CDMA code is transmitted, so the generated RNG_RSP message is a broadcast message; the MS determines whether it is related to itself according to the received CDMA code and the transmitter carried by the RNG-RSP message. The transmitted CDMA code and the transmitter will be the same, if the same, then the message is transmitted to itself, the MS will perform different operations according to the ranging state in the RNG-RSP message: If the ranging state is continued, step 205 is performed; If the neighboring BS determines that the transmission status is successful after receiving the CDMA code, and transmits the RNG-RSP with the ranging status as successful to the MS, step 206 is performed.

Step 205: The MS adjusts the CDMA transmission parameter according to the ranging parameter that needs to be adjusted, and continues the CDMA ranging process until the CDMA code of the RNG-RSP message that can cause the transmission state to be successful is received by the joint neighbor station.

Step 206: The federated neighbor station sends a REL_RNG_REQ message to the neighbor BS, and reports the measurement of the CDMA code to the neighbor BS, including the power, time, frequency, and ranging status that need to be adjusted, such as success, continuation, cancellation, or retesting. distance.

Step 207: After receiving the CDMA code, the neighboring BS sends a RNG-RSP message with the ranging status being successful to the MS, and performs step 208; if it is determined that the ranging status is canceled, the ranging is cancelled. Process, the process ends; if it is determined that the ranging state is re-ranging, the ranging process is restarted, for example, returning to step 202 to continue execution.

Step 208: The neighbor BS allocates an uplink bandwidth to the MS by using a UL-MAP broadcast message.

If the neighbor BS determines that the ranging status is successful, the order of steps 207 and 208 may be determined by the system according to the situation. Step 209: When the MS receives the RNG-RSP message with the UL bandwidth and the ranging status as successful, the MS transmits the service station identifier to the federated neighbor station on the allocated uplink bandwidth.

RNG-REQ message for MS MAC address information.

Step 210: The federated neighbor station sends the received RNG-REQ message to the neighbor BS. Step 211: After receiving the RNG-REQ message, the neighboring BS places the basic CID and the primary management CID allocated to the MS in the RNG-RSP message, and may also place the service level advancement parameter and send it to the MS.

In the embodiment shown in FIG. 2, if the transparent RS is in the current cell, the ranging parameter negotiation process is not needed. At this time, the serving BS of the joint neighbor station is the serving BS of the MS, and the neighbor in the embodiment shown in FIG. 2 The BS is replaced with the service BS, and the steps of implementation are unchanged.

It should be noted that during a joint operation, there may be multiple joint neighbor stations, which may be partially under the neighbor BS of the MS and the other part under the service BS of the MS. Therefore, in the actual implementation process, the joint operation is performed according to the corresponding implementation manner for different situations.

The level 2 joint is very similar to the level 1 joint. The difference is that the MS does not need to wait for the RNG-RSP message returned by the joint neighbor station after transmitting the CDMA code to the joint neighbor station, and obtains the mobile scan report message through the serving BS or the access RS. The message includes ranging parameters, ranging status, service level indication, and the like that need to be adjusted.

The two-level joint method provided by the embodiment of the present invention includes at least:

After receiving the CDMA code from the mobile station MS, the joint neighbor station sends the ranging parameter report information to the serving base station BS of the joint neighbor station, where the information carries the ranging parameter and the ranging status that need to be adjusted;

If the serving BS of the joint neighbor station is the serving BS of the MS, the serving BS of the joint neighbor station transmits the received ranging parameter report information to the MS; if the serving BS of the joint neighbor station is the neighbor BS of the MS, The service BS of the joint neighbor station will connect through the backbone network. The received ranging parameter report information is sent to the serving BS of the MS; the serving BS of the MS sends the received ranging parameter report information to the MS.

If the joint neighbor station is a non-transparent RS, before the joint neighbor station receives the CDMA code, it also includes:

The serving BS of the joint neighbor station sends a ranging parameter allocation request to the federated neighbor station, where the message carries the MS identifier, the joint level of the request; the federated neighbor station responds to the ranging parameter assignment response of the serving BS, in the response Including the MS identifier and the joint level assigned to the MS. If the joint level assigned is level 1 or level 2, it also needs to include the assigned ranging parameters, and the ranging parameters include: CDMA ranging code, aggregation time, ranging area transmission Opportunity offset; if the serving BS of the joint neighbor station is the neighbor BS of the MS, the serving BS of the joint neighbor station receives the ranging parameter allocation response and sends it to the serving BS of the MS; the serving BS of the MS will receive The ranging parameters are sent to the MS. If the serving BS of the joint neighbor station is the serving BS of the MS, the serving BS of the joint neighbor station directly communicates with the federated neighbor station, and does not have to pass through the backbone network, that is, the service BS of the joint neighbor station directly receives the received BS. The ranging parameters are sent to the MS.

Figure 3 (a) is a flow chart showing a case of a two-level joint method in a relay network according to a third embodiment of the present invention, in which the joint neighbor station is an RS, which may be a transparent RS or a non-transparent RS. If the joint neighbor station is a non-transparent RS, the level 2 association in the process and the level 1 shown in FIG. 2 use the same ranging parameter negotiation process, that is, the steps described in steps 101 to 103 in FIG. 1; The joint neighboring station is a transparent RS, and the transparent RS is in the current cell, and the parameter negotiation process is not needed. If the transparent RS is not in the current cell, that is, the serving BS of the transparent RS is the neighbor BS of the MS, the level 2 joint in the process Using the same parameter negotiation process as in the prior art, the serving BS of the MS coordinates the ranging parameters provided to the MS with the serving BS of the federated neighbor station through the backbone network.

In Figure 3 (a), the serving BS of the joint neighbor station is the neighbor BS of the MS, and the parameters are negotiated. The subsequent process includes the following steps:

Steps 301 and 302 are the same as steps 104 and 105 and will not be described again.

Step 303: After the MS sends the CDMA code to the joint neighbor station, the MS returns to the MS BS to communicate with the MS. The federated neighbor station sends a ranging parameter report message to the serving BS of the federated neighbor station, and the message includes: a ranging parameter and a ranging state that need to be adjusted, and the ranging parameters that need to be adjusted include: power, time, and frequency.

If the federated neighbor station is the RS under the serving base station of the MS, that is, the serving BS of the joint neighbor station is the serving BS of the MS, the serving BS of the MS directly communicates with the federated neighbor station, and does not have to pass through the backbone network. As shown in Figure 3 (b), step 303, and step 304.

Step 304: The serving BS of the joint neighbor station sends an RNG_RSP message to the serving BS of the MS through the backbone network.

Step 305: The serving BS of the MS combines the received multiple RNG_RSP message contents into a single mobile scan report message and sends the message to the MS.

In this step, the serving BS of the MS may directly send the mobile scanning report message to the MS, or may send the mobile scanning report message to the MS through the RS.

If the federated neighbor station is the RS under the serving base station of the MS, that is, the serving BS of the joint neighbor station is the serving BS of the MS, the serving BS of the MS directly communicates with the federated neighbor station, and does not have to pass through the backbone network, as shown in FIG. 3. (b) Step 303, and Step 304, shown.

The embodiment of the present invention also provides a level 1 joint system in a relay network. As shown in FIG. 4, the system includes: a federated neighbor station, a serving BS of the joint neighbor base station, and a mobile station MS, where the joint neighbor station For the relay station RS.

A serving BS of the joint neighbor base station for receiving a ranging request from the federated neighbor station The message sends a ranging response message to the MS or to the federated neighbor station.

And a MS, configured to send a ranging request message to the federated neighbor station; receive a ranging response message from a serving BS of the federated neighbor base station or a joint neighbor station.

Here, the service BS of the joint neighbor station may be the MS BS of the MS, or the neighbor BS. The MS includes a ranging messaging unit and a ranging parameter receiving unit.

a ranging message sending and receiving unit, configured to send a ranging request message to the federated neighbor station; receive a ranging response message from a serving BS of the federated neighbor station or a joint neighbor station; a ranging parameter receiving unit, configured to receive Negotiated ranging parameters sent by the serving BS of the MS.

If the joint neighbor station is a non-transparent RS, as shown in FIG. 5, the non-transparent RS includes: a ranging request transceiver unit and a parameter negotiation unit.

a ranging request transceiver unit, configured to receive a ranging request message from the MS, send the ranging request message to the serving BS of the federated neighbor station, and receive a ranging response message returned by the serving BS of the federated neighbor station And send it to the MS;

The parameter negotiation unit is configured to receive a ranging parameter allocation request sent by the serving BS of the federated neighbor station, and return a ranging parameter allocation response to the serving BS of the federated neighbor station.

The service BS of the federated neighbor station includes: a ranging request receiving unit and a ranging parameter requesting unit,

a ranging request receiving unit, configured to receive a ranging request message from the federated neighbor station, and send a ranging response message to the associated neighbor station;

a ranging parameter requesting unit, configured to send a ranging parameter allocation request to the federated neighbor station, receive a ranging parameter allocation response from the federated neighbor station, send the ranging parameter allocation response to the serving BS of the MS, or directly The negotiated ranging parameters are sent to the MS.

It should be noted that, when the serving BS of the federated neighbor station is the serving BS of the MS, the ranging parameter requesting unit may directly send the negotiated ranging parameter to the MS; When the serving BS of the joint neighbor station is the neighbor BS of the MS, the serving BS of the joint neighbor station needs to first negotiate the ranging parameters allocated by the joint neighbor station for the MS through the backbone network, and the service BS of the MS negotiates the service of the MS. The BS sends the negotiated ranging parameters to the MS.

If the federated neighbor station is a transparent RS, as shown in FIG. 6, the transparent RS includes: a measurement status reporting unit and a first ranging request transceiver unit,

a measurement status reporting unit, configured to receive a CDMA code from the MS, and report the measurement result of the CDMA code to a service BS of the RS;

The first ranging request transceiver unit is configured to receive a ranging request message from the MS, and send the ranging request message to the RS of the RS.

The service BS of the RS includes: a measurement situation receiving unit and a first ranging response sending unit,

a measurement condition receiving unit, configured to receive a CDMA code measurement situation from the joint neighbor station, select an optimal path according to the measurement condition or a CDMA code state received by itself, and measure the best path according to the CDMA code And generating, by the state, a ranging response message, sent to the MS; if the ranging status carried in the ranging response message is successful, assigning, to the MS, an uplink bandwidth for sending a ranging request;

The first ranging response sending unit is configured to receive a ranging request message from the federated neighbor station, and send a ranging response message to the MS.

The embodiment of the present invention also provides a 2-level joint system in a relay network. As shown in FIG. 7, the system includes: a federated neighbor station, a serving BS of the federated neighbor station, and a mobile station MS, where the joint neighbor is The station is the relay station RS,

a joint neighboring station, configured to receive a CDMA code from the MS, and send a ranging parameter report message to the serving BS of the federated neighbor station, where the message carries a ranging parameter and a ranging state that need to be adjusted;

The serving BS of the joint neighbor station, used to receive the service BS when it is the MS The ranging parameter report message is sent to the MS after being merged. When it is the neighbor BS of the MS, the serving BS of the MS sends the received ranging parameter report message to the MS.

The MS is configured to send a CDMA code to the federated neighbor station; and receive a ranging parameter report message sent by the serving BS of the MS.

Here, the service BS of the joint neighbor station may be the neighbor BS of the MS or the service BS of the neighbor BS.

If the federated neighbor station is a non-transparent RS, the non-transparent RS includes: a second ranging parameter reporting unit and a second parameter negotiating unit. among them,

a second ranging parameter reporting unit, configured to receive a CDMA code from the MS, and send a ranging parameter report message to the serving BS of the RS;

The second parameter negotiation unit is configured to receive a ranging parameter allocation request sent by the serving BS of the RS, and return a ranging parameter allocation response to the serving BS of the RS.

In this case, the service BS of the joint neighbor station, i.e., the service BS of the non-transparent RS, includes a ranging parameter report receiving unit and a second ranging parameter request unit. among them,

a ranging parameter report receiving unit, configured to receive a ranging parameter report message from the federated neighbor station, send the received ranging parameter report to the MS, or send the received ranging parameter report message to the serving BS of the MS .

a second ranging parameter requesting unit, configured to send a ranging parameter allocation request to the federated neighbor station, receive a ranging parameter allocation response from the federated neighbor station, and send the ranging parameter allocation response to the serving BS of the MS; or directly The negotiated ranging parameters are sent to the MS.

It can be seen from the foregoing embodiments that the joint method, system, and relay station in the relay system provided by the embodiment of the present invention can support the joint operation of the level 1 and the level of the RS by the joint neighbor station. In addition, when the joint neighboring station is a non-transparent RS, the embodiment of the present invention solves the problem of the ranging parameter negotiation between the non-transparent RS and the neighbor BS, and solves the problem that when the joint RS independently allocates the ranging parameter to the MS , because the service BS of the joint RS cannot know the allocation of the joint RS Ranging parameters, caused by problems that cannot be achieved by the combination of Level 1 and Level 2.

In summary, the above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A joint method in a relay network, characterized in that the joint neighbor station is a relay station RS, and the method comprises the following steps:

2. The method of claim 1, wherein the federated neighbor station is a non-transparent RS,

The sending ranging response message is: the serving BS of the federated neighbor station sends a ranging response message to the federated neighbor station;

After the sending the ranging response message, the method further includes: sending, by the federated neighbor station, the received ranging response message to the MS.

3. The method according to claim 2, wherein, when the serving BS of the joint neighbor station is a neighbor BS of the MS, the method is further performed before the joint neighbor station receives the ranging request message Includes:

And the neighboring BS of the MS sends the ranging parameter to the serving BS of the MS, and the serving BS of the MS receives the ranging parameter negotiation. The ranging parameters satisfying the requirements are sent to the MS;

Sending, by the MS, the CDMA code carried therein to the federated neighbor station according to the received ranging parameter;

The federated neighbor station receives the CDMA code from the MS, determines the ranging status, and sends a ranging response message to the MS; if the ranging status carried in the message is successful, the federated neighbor station is The MS allocates an uplink bandwidth for transmitting a ranging request; And the MS sends a ranging request message to the federated neighbor station when the ranging status is a successful ranging response message and the uplink bandwidth.

4. The method according to claim 3, wherein the performing ranging parameter negotiation comprises:

The neighbor BS of the MS sends a ranging parameter allocation request to the federated neighbor station, where the message carries the MS identifier and the joint level of the request;

The federated neighbor station sends a response parameter allocation response to the neighboring BS of the MS, where the response includes an MS identifier and a joint level assigned to the MS. If the joint level is level 1 or level 2, the allocation needs to be included. The ranging parameters, including the CDMA ranging code, the aggregation time, and the ranging area transmitter will be offset.

The method according to claim 2, wherein, when the serving BS of the joint neighbor station is the serving BS of the MS, the method is further performed before the federated neighbor station receives the ranging request message. Includes:

The federated neighboring station performs the ranging parameter negotiation with the serving BS of the MS, and the serving BS of the MS sends the received ranging parameter that meets the requirement to the MS;

The federated neighbor station receives the CDMA code from the MS, determines the ranging status, and sends a ranging response message to the MS; if the ranging status carried in the message is successful, the federated neighbor station is The MS allocates an uplink bandwidth for transmitting a ranging request; when the MS receives the ranging response message with a successful ranging status and the uplink bandwidth, the MS sends a ranging to the federated neighbor station. Request message.

The method of claim 5, wherein the determining the ranging parameter negotiation between the federated neighbor station and the serving BS of the MS comprises:

The serving BS of the MS sends a ranging parameter allocation request to the federated neighbor station, The message carries the joint level of the MS identifier and the request;

The federated neighbor station responds to the ranging parameter assignment response to the MS of the MS.

The method according to claim 1, wherein the federated neighbor station is a transparent RS, and the sending ranging response message is: the serving BS of the federated neighbor station sends a ranging to the MS Response message.

The method according to claim 7, wherein when the serving BS of the joint neighbor station is the neighbor BS of the MS, the method is performed before the joint neighbor station receives the ranging request message Also includes:

The serving BS of the MS coordinates the ranging parameter allocated to the MS by the serving BS of the joint neighboring station through the backbone network; the serving BS of the MS sends the negotiated ranging parameter to the MS;

The federated neighbor station receives the CDMA code from the MS, and reports the measurement condition of the CDMA code to the serving BS 4, including the ranging status;

The serving BS of the federated neighbor station selects an optimal path according to the measured condition or the CDMA code status received by itself, and generates a ranging response message according to the ranging state of the CDMA code on the optimal path. Sending to the MS; if the ranging status carried in the ranging response message is successful, the serving BS of the federated neighbor station allocates an uplink bandwidth for transmitting the ranging request to the MS;

And receiving, by the MS, the ranging request message to the federated neighbor station when the ranging status is a successful ranging response message and the uplink bandwidth.

The method according to any one of claims 1 to 8, wherein the service BS of the joint neighbor station is a serving BS of the MS, or a neighbor BS of the MS.

10. A joint method in a relay network, characterized in that the joint neighbor station is medium Following the station RS, the method includes the following steps:

After receiving the CDMA code from the mobile station MS, the joint neighbor station sends a ranging parameter report message to the serving BS of the joint neighbor station, where the message carries the ranging parameter and the ranging status that need to be adjusted;

If the serving BS of the federated neighbor station is the serving BS of the MS, the serving BS of the federated neighbor station sends the received ranging parameter report message to the MS; if the federated neighbor The serving BS of the station is the neighbor BS of the MS, and the serving BS of the federated neighbor station sends the received ranging parameter report to the serving BS of the MS; the serving BS of the MS will receive the measurement The parameter report message is sent to the MS.

The method according to claim 10, wherein the federated neighbor station is a non-transparent RS, and before the received neighboring station receives the CDMA code, the method further includes:

The serving BS of the federated neighbor station sends a ranging parameter allocation request to the federated neighbor station, where the message carries the joint level of the MS identifier and the request;

The federated neighbor station responds to the ranging parameter allocation response to the serving BS of the federated neighbor station, where the response includes the MS identifier and the joint level assigned to the MS, and if it is assigned level 1 or level 2, it also needs to be included. The assigned ranging parameters, including the CDMA ranging code, the aggregation time, and the ranging area transmitter are offset;

Receiving, by the serving BS of the joint neighbor station, the ranging parameter allocation response, transmitting the ranging parameter to the serving BS of the MS, or directly transmitting the negotiated ranging parameter to the MS; receiving the received from the The serving BS of the MS of the ranging parameter assignment of the serving BS of the joint neighbor station transmits the negotiated ranging parameter to the MS.

The method according to claim 11, wherein the serving BS of the MS sends the negotiated ranging parameter to the MS, and further includes:

The serving BS of the MS determines whether the received ranging parameter meets the requirement. When the determination meets the requirement, the serving BS of the MS sends the received ranging parameter to the MS.

The method according to claim 12, wherein the method further comprises: if the serving BS of the MS determines that the received ranging parameter does not meet the requirement, requesting all the serving BSs of the federated neighbor station to re-route The federated neighbor station requests parameter negotiation, or requests parameter negotiation from a serving BS of the federated neighbor station that does not satisfy the requirement.

The method according to any one of claims 9 to 13, wherein the service BS of the joint neighbor station is a service BS of the MS, or a neighbor BS of the MS.

A joint system in a relay network, the system comprising: a federated neighbor station, a serving BS of the federated neighbor base station, and a mobile station MS, wherein the federated neighbor station is a relay station RS,

The MS, configured to send a ranging request message to the federated neighbor station; receive a ranging response message from the serving BS of the federated neighbor base station or the federated neighbor station.

The system according to claim 15, wherein the federated neighbor station is a non-transparent RS, and includes:

a ranging request transceiver unit, configured to receive a ranging request message from the MS, send the ranging request message to a serving BS of the federated neighbor station, and receive a service BS return of the federated neighbor station a ranging response message, and sending it to the MS; a parameter negotiation unit, configured to receive a ranging parameter allocation request sent by the serving BS of the federated neighbor station, and return to the serving BS of the federated neighbor station Ranging parameter assignment response.

17. The system of claim 16, wherein the service BS of the federated neighbor station comprises:

a ranging request receiving unit, configured to receive a ranging request cancellation from the federated neighbor station Sending a ranging response message to the federated neighbor station;

a ranging parameter requesting unit, configured to send a ranging parameter allocation request to the federated neighbor station, receive a ranging parameter allocation response from the federated neighbor station, and send the ranging parameter allocation response to a service of the MS BS, or directly send the negotiated ranging parameters to the MS.

The system according to claim 15, wherein the federated neighbor station is a transparent RS, and includes:

a measurement status reporting unit, configured to receive a CDMA code from the MS, and report, to the serving BS of the federated neighbor station, a measurement condition of the CDMA code;

The first ranging request transceiver unit is configured to receive a ranging request message from the MS, and send the ranging request message to the serving BS of the federated neighbor station.

The system according to claim 18, wherein the service BS of the federated neighbor station comprises:

a measurement condition receiving unit, configured to receive a CDMA code measurement situation from the joint neighbor station, select an optimal path according to the measurement condition or a CDMA code state received by itself, and select the best path according to the CDMA code The ranging state on the path generates a ranging response message, and sends the ranging response message to the MS; if the ranging state carried in the ranging response message is successful, assigning, to the MS, an uplink bandwidth for transmitting a ranging request;

And a first ranging response sending unit, configured to receive a ranging request message from the federated neighbor station, and send a ranging response message to the MS.

20. A relay station RS, characterized in that the RS comprises:

The parameter negotiation unit is configured to receive a ranging parameter allocation request sent by the serving BS of the RS, and return a ranging parameter allocation response to the serving BS of the RS.

A relay station RS, characterized in that the RS comprises:

22. A joint system in a relay network, the system comprising: a federated neighbor station, a serving BS of the federated neighbor station, and a mobile station MS, wherein the federated neighbor station is a relay station RS,

The system according to claim 22, wherein the federated neighbor station is a non-transparent RS, and includes:

a ranging parameter reporting unit, configured to receive a CDMA code from the MS, and send a ranging parameter report message to the serving BS of the federated neighbor station;

And a second parameter negotiation unit, configured to receive a ranging parameter allocation request sent by the serving BS of the federated neighbor station, and return a ranging parameter allocation response to the serving BS of the federated neighbor station.

24. The system of claim 22, wherein said federated neighbor station The service BS includes:

a ranging parameter report receiving unit, configured to receive a ranging parameter report message from the federated neighbor station, and send the received ranging parameter report message to the MS when it is the serving BS of the MS; When it is the neighbor BS of the MS, the serving BS of the MS sends the received ranging parameter report message to the MS;

a second ranging parameter requesting unit, configured to send a ranging parameter allocation request to the federated neighbor station, receive a ranging parameter allocation response from the federated neighbor station, and send the ranging parameter allocation response to the The service BS of the MS; or directly send the negotiated ranging parameters to the MS.

A mobile station MS, wherein the MS is configured to send a ranging request message to the federated neighbor station; and receive a ranging response message from a service of the joint neighbor base station or a joint neighbor station.

The MS according to claim 25, wherein the MS includes a ranging message transceiver unit and a ranging parameter receiving unit,

The ranging message sending and receiving unit is configured to send a ranging request message to the federated neighbor station; receive a ranging response message from a serving BS of the federated neighbor station or a joint neighbor station; the ranging parameter receiving unit And a negotiated ranging parameter sent by the serving BS for receiving the MS.