CN101521941A - Method, system and device for assigning response channel - Google Patents
Method, system and device for assigning response channel Download PDFInfo
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- CN101521941A CN101521941A CN200810080633A CN200810080633A CN101521941A CN 101521941 A CN101521941 A CN 101521941A CN 200810080633 A CN200810080633 A CN 200810080633A CN 200810080633 A CN200810080633 A CN 200810080633A CN 101521941 A CN101521941 A CN 101521941A
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Abstract
The invention discloses a method for assigning a response channel, and the method comprises the following steps of: sending an assigning message using mark scrambling to a terminal; obtaining the index of the terminal response channel according to the position of the assigning message in all assigning messages so as to ensure the terminal to descramble the assigning message; and further obtaining the position of the terminal response channel by the index of the response channel and the positions of time-frequency resource of all response channels. The invention also discloses a corresponding system, a base station and a terminal for assigning the response channel. By applying the invention, the dimension of broadcast messages can be reduced when the resource is assigned, and the communication overhead and the interference to the neighborhood can also be reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of assignment and reply (ACK, Acknowledgement) method, system and device of channel.
Background technology
Usually wireless communication system comprises: and base station (BS, Base Station) and terminal (MS, MobileStation).
Communicate by airlink between BS and the MS, a kind of communication mode of BS control type is wherein arranged, i.e. the certain resource of BS assignment is given MS, and MS goes to resolve the corresponding downstream data or sends corresponding upstream data according to the resource of BS assignment.Here, the descending BS that just is meant sends to this direction of MS, and the up MS that just is meant sends to this direction of BS.
Insert (OFDMA in OFDM, Orthogonal Frequency Division MultiplexAccess) in the system, mainly adopted OFDM (OFDM, Orthogonal FrequencyDivision Multiplex) technology dispatches different running time-frequency resources to different users.When adopting the OFDM technology to carry out resource assignation, BS should the temporal resource of assignment the resource on the assignment frequency domain again.
When transmit leg and recipient communicate by airlink in the wireless communication system, transmit leg sends message to the recipient as required, the recipient resolves after receiving message, carries out corresponding action, and the mode that sends message is divided into three kinds of multicast, clean culture and broadcasting usually.The mode that a plurality of recipient of sending direction send message is called multicast, and recipient of a sending direction sends message and is called clean culture.All recipients of sending direction send message and are called broadcasting.
The mode of broadcasting commonly used is carried out assignment to the uplink and downlink resource in the prior art, and the sign by terminal in the assignment message of broadcasting allows different terminals distinguish resource.Broadcasted content comprise MS sign, distribute to resource location and size, the mixing of this MS on time-frequency and retransmit (HARQ automatically, HybridAutomatic Repeat request) channel logo, assignation informations such as the sign of the old bag of new bag, modulation coding mode, or the like; After descending MS receives broadcasted content, find the sign of oneself, obtain corresponding resource allocation information, carry out subsequent operation.
When MS obtained the uplink ACK channel position at needs, the method for use was as described below:
After receiving descending assignment message, the numerical value of calculating the uplink ACK channel indexes according to the position of assignment in descending assignment message of oneself.For instance, the descending assignment of supposing a MS is the 9th assignment of whole descending assignment, and the ACK index of this business datum of this MS is exactly 9 so, that is to say this ACK just 9 ack channels on oneself ACK of feedback.
After receiving up assignment message, the position of learning whole uplink ACK running time-frequency resource according to up assignment message, or receive the position of whole uplink ACK running time-frequency resource by broadcast channel; When up assignment message includes the position of whole uplink ACK running time-frequency resource, do not need to accept the position of whole uplink ACK running time-frequency resource by broadcast channel.
Obtain the particular location of own uplink ACK channel according to the position of ACK index that obtains and whole ACK running time-frequency resource.Then send up ACK.
When MS obtained descending ack channel position at needs, the method for use was as described below:
After receiving up assignment message, determine the numerical value of own descending ack channel index in the position of whole up assignment, computational methods and basic identical when obtaining the uplink ACK channel indexes according to the up assignment of oneself.
After receiving descending assignment message, learn the position of whole descending ACK running time-frequency resource according to descending assignment message.
Obtain the particular location of own descending ack channel according to the position of ACK index that obtains and whole ACK running time-frequency resource.
Then send uplink business data, on the particular location of the descending ack channel that obtains, receive the descending ACK that BS returns.
In research and practice process to prior art, the inventor finds that there is following problem in prior art:
Use the resource of all MS of BS broadcast mode assignment, broadcasted content comprises whole assignation informations, and in order to consider the user that channel circumstance is the poorest, this broadcast just needs to adopt the modulation coding mode of low order like this, makes expense excessive.The power of the message of broadcasting transmission simultaneously will be considered the MS that channel circumstance is the poorest, if the big more interference to the adjacent area of broadcast is also just big more like this.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides a kind of method, system and device of assigning response channel, and in the time of can reducing assigned resources, the size of data of broadcast to reduce communication overhead, reduces the interference to the adjacent area.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of method of assigning response channel on the one hand, comprising:
Send the assignment message that uses the sign scrambling to terminal; So that described terminal can be passed through the described assignment message of descrambling,, obtain the index of described terminal responds channel in the position in whole assignment messages by described assignment message; Further the position of the index by described responder link and whole responder link running time-frequency resources obtains the position of described terminal responds channel.
On the other hand, provide a kind of system of assigning response channel, having comprised:
The base station is used for using sign scrambling assignment message, and sends;
Terminal is used for the described assignment message of descrambling, and the descrambling success then obtains the index of described terminal responds channel by the position of described assignment message in whole assignment messages; The index by described responder link and the position of described whole responder link running time-frequency resources obtain the position of described terminal responds channel.
On the other hand, provide a kind of base station, having comprised:
Scrambling unit is used for using sign scrambling assignment message;
The assignment message radio unit is used for sending described assignment message to terminal, so that described terminal can be passed through the described assignment message of descrambling, obtains the index of described terminal responds channel.
On the other hand, provide a kind of terminal, having comprised:
The assignment message receiving element is used to receive the assignment message of the use sign scrambling that the base station sends;
Descrambling assignment message unit is used for the described assignment message of descrambling;
The index acquiring unit is used for obtaining the index of described terminal responds channel by the position of described assignment message in whole assignment messages after described descrambling success;
The position acquiring unit, the index by described responder link and the position of whole responder link running time-frequency resources obtain the position of described terminal responds channel.
As can be seen from the above technical solutions, owing to sending to MS by the scrambling assignment message, which assignment message MS can be one's own assignment message by the descrambling assignment message, do not need to carry sign or the identification informations such as Multimedia Broadcast Multicast Service sign or group id of MS, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Description of drawings
Fig. 1 is the flow chart of the method embodiment one of assigning response channel provided by the invention;
Fig. 2 is the flow chart of the method embodiment two of assigning response channel provided by the invention;
Fig. 3 is the flow chart of the method embodiment three of assigning response channel provided by the invention;
Fig. 4 is the flow chart of the method embodiment four of assigning response channel provided by the invention.
Embodiment
The invention provides a kind of method, system and related device of assigning response channel, reduced the amount of information that the mode of broadcasting sends, to reduce because the expense that the broadcast mode assignment causes is excessive, and to the interference of adjacent area.
Among the method embodiment of assigning response channel provided by the invention, BS uses sign scrambling assignment message, and sends to MS; Wherein, the clean culture assignment message uses the sign of MS to carry out scrambling, and the multicast and broadcast assignment message uses the Multimedia Broadcast Multicast Service sign to carry out scrambling, and the group assignment message uses group id to carry out scrambling.
The described assignment message of MS descrambling, descrambling success then obtain the index of described terminal responds channel by the position of described assignment message in whole assignment messages; MS can illustrate that then this MS is the purpose MS of this message to its descrambling after receiving described assignment message, MS obtains the index of described terminal responds channel again according to the position of described assignment message in whole assignment messages.For instance, the assignment message of supposing the success of MS descrambling is the 9th assignment of whole assignment message, and the ACK index of this business datum of this MS is exactly 9 so.
MS is by up assignment message, the position that obtains whole responder link running time-frequency resources; The index by described responder link and the position of described whole responder link running time-frequency resources obtain the position of described terminal responds channel.
Owing to use to the assignation information scrambling, the terminal descrambling, can untie the index that can obtain described terminal responds channel by the position of described assignment message in whole assignment messages, do not need to compare the sign of MS, information such as Multimedia Broadcast Multicast Service sign, can obtain one's own assignation information, therefore BS does not need broadcast transmission MS sign, the Multimedia Broadcast Multicast Service sign, information such as group id, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, use BS can use bit mapping graph (Bitmap) record resource allocation information, and be broadcast to MS.
BS is used in reference to timing resource bit (Bit) the formation Bitmap of resource frequently, and resource Bit is corresponding with running time-frequency resource unit, and value is promptly represented the running time-frequency resource number of blocks with assigned of described correspondence in the described bit mapping graph for the quantity of the resource Bit of " 1 "; Broadcast transmission Bitmap;
Terminal receives described Bitmap; Know the running time-frequency resource number of blocks with assigned by described Bitmap.Detailed Bitmap structure is as mentioned below:
Each Bitmap comprises some timing resource Bit of resource frequently that are used in reference to, the running time-frequency resource unit of the corresponding predetermined quantity of each Bit, the present invention only describes as an example with the corresponding running time-frequency resource unit of a bit, but the present invention does not limit the corresponding running time-frequency resource unit of a bit, bit can corresponding half, one, two or more, no matter corresponding what processing are the same, an integral body are used as by the running time-frequency resource unit of this bit correspondence handle just passable.When among this Bitmap certain is used in reference to timing the resource bit of resource is changed to 1 frequently, the resource units of just representing this resource bit correspondence, but not comprising previous is the resource units of 1 bit correspondence, the running time-frequency resource that first block takies then from Bitmap begin count.Give one example, if first bit of bitmap just be 1 the expression first block only take first running time-frequency resource unit, if second bit of bitmap be 1 and first bit be 0 the expression first block take two the running time-frequency resource units in front.Other by that analogy.
Now the give an actual example structure of explanation Bitmap supposes that the two-dimentional running time-frequency resource that all can assignment has 6 unit running time-frequency resources, and the Bitmap structure is as shown in table 1:
Table 1, Bitmap example
Bitmap in the table 1 has 6 Bit, and wherein the 2nd and the 6th is " 1 ", and other Bit positions are " 0 ", illustrates that this Bitmap is that the running time-frequency resource of 6 units has carried out assignment, and it is 1 that two bit are at first arranged among the bitmap, and two block are then arranged.First block has taken the running time-frequency resource of 2 units in front, and second block taken the running time-frequency resource of 4 units in back.Illustrate, the running time-frequency resource here can be logic also can be physics.
Also need to inform the relevant information of MS in the assignment, be clean culture or multicast and broadcast or group assignment message, these assignment messages comprise the modulation coding mode of clean culture or Multimedia Broadcast Multicast Service, the channel logo of HARQ, the assignation informations such as sign of the old bag of new bag, present embodiment provides two kinds of modes that send assignment message:
The first, the resource that all clean cultures or multicast and broadcast or group assignment message take is all sequentially followed the back of the resource that takies at the Bitmap of broadcasting, and the block order according to identifying among the Bitmap sends successively.The back of the resource that takies at the Bitmap of broadcasting is followed in the assignment of first block in other words, and first is followed for second in the foremost in assignment zone, and the rest may be inferred;
The second, when sending downlink data, the resource that each clean culture or multicast and broadcast or group assignment message take is placed among the corresponding block, and particular location can be the front of business datum.
Wherein, the clean culture assignment message uses the sign of MS to carry out scrambling, the multicast and broadcast assignment message uses the Multimedia Broadcast Multicast Service sign to carry out scrambling, the group assignment message uses group id to carry out scrambling, MS is after receiving, can illustrate that then this MS is the purpose MS of this message to its descrambling, MS is known the running time-frequency resource that block takies according to the position of block in bitmap again.Clean culture or multicast and broadcast or group assignment message can certainly be specified clean culture or multicast and broadcast or the used modulation coding mode of group assignment message by other mode with the modulation coding mode coding of acquiescence.
MS has known the position of one's own assignment message by bitmap and assignment message, and MS just can determine own index in this whole ACK resource the inside according to the position of assignment message of oneself.
When obtaining the uplink ACK channel position, the flow process of the method embodiment one of assigning response channel provided by the invention as shown in Figure 1:
Step 101, BS broadcast downstream Bitmap and corresponding assignment message.
This Bitmap has provided the situation of all running time-frequency resources composition block of unit.The Bitmap structure example that sees above is described.
BS sends the assignment message that sends each block correspondence behind the Bitmap, when sending assignment message, and two kinds of send modes that the mode that can adopt sees above and describes.
Step 102, MS descrambling assignation information obtain the uplink ACK index.
MS can obtain the situation that each block takies resource according to Bitmap after receiving this Bitmap and corresponding assignment message.
Afterwards, MS carries out descrambling to the assignment message of each block correspondence, if the assignment message descrambling is correct, illustrates that then this MS is the purpose MS of this message, otherwise illustrates that this MS is not the purpose MS of this message.Assignment message may be clean culture assignment or multicast and broadcast assignment or group assignment message in the present embodiment, the concrete mode of descrambling is, the sign of the MS sign of MS usefulness oneself or the Multimedia Broadcast Multicast Service of oneself enjoying or group id go clean culture assignment or multicast and broadcast assignment or organize assignment message and carry out descrambling, if clean culture assignment or multicast and broadcast assignment or group assignment message descrambling are correct, illustrate that then this MS is the purpose MS of this message, otherwise illustrate that this MS is not the purpose MS of this message.
After judging that descrambling is correct, obtain to belong to the descending assignment message of this MS, the numerical value of calculating the uplink ACK channel indexes according to the position of descending assignment message in whole descending assignment message of oneself.
Need to prove in the present embodiment one, MS does not need can obtain by Bitmap the numerical value of uplink ACK channel indexes, but can learn total what ack channels by Bitmap, be that the resource Bit of what values for " 1 " arranged among the Bitmap, how many block running time-frequency resource just has been divided into, and what ack channels are just arranged.
Step 103, MS obtain the position of the whole uplink ACK running time-frequency resource of BS transmission.
May be for after MS receives up assignment message, according to the position that up assignment message is learnt whole uplink ACK running time-frequency resource, also may be for receive the position of whole uplink ACK running time-frequency resource by broadcast channel.
If obtain the position of whole ACK running time-frequency resource in this step by up assignment message, BS is to adopt above-described method sending up assignment message, uses Bitmap and assignment message to send together.
This step does not have the sequencing relation with preceding 3 steps, as long as finished before step 104.
Step 104, obtain the particular location of uplink ACK channel, then send up ACK.
Obtain the particular location of own uplink ACK channel according to the position of uplink ACK index that obtains and whole ACK running time-frequency resource.Then send up ACK.
Use the method embodiment one of assigning response channel provided by the invention, sending to MS by the scrambling assignment message, which assignment message MS can be one's own assignment message by the descrambling assignment message, do not need to carry sign or the identification informations such as Multimedia Broadcast Multicast Service sign or group id of MS, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, need not carry resource location and the information such as size of this MS on time-frequency of distributing to, MS can be known resource location and the information such as size of this MS on time-frequency of distributing to by Bitmap, because distributing to resource location and the informational needs field such as size of this MS on time-frequency identifies, when in Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronic Engineers:IEEE) 802.16e, being each MS assigned resources, these information need take the field that length is 10 bit usually, and its occupation space in Bitmap just takies several Bit that running time-frequency resource equates with it, use Bitmap to save down to distribute to resource location and information such as the size resource that take of this MS on time-frequency, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
When obtaining descending ack channel position, the flow process of the method embodiment two of assigning response channel provided by the invention as shown in Figure 2:
Step 201, BS broadcast upstream Bitmap and corresponding assignment message.
This Bitmap has provided the situation of all running time-frequency resources composition block of unit.The Bitmap structure is referring to above example description.
BS sends the assignment message that sends each block correspondence behind the Bitmap, when sending assignment message, and the description that the mode that can adopt sees above.
Step 202, MS descrambling assignation information obtain descending ACK index.
MS can obtain the situation that each block takies resource according to Bitmap after receiving this Bitmap and corresponding assignment message.
Afterwards, MS carries out descrambling to the assignment message of each block correspondence, if the assignment message descrambling is correct, illustrate that then this MS is the purpose MS of this message, MS obtains oneself will send the assignation information that uplink business data needs from the descrambling result, as the channel logo of HARQ, newly wrap the assignation information such as sign, modulation coding mode of old bag, otherwise illustrate that this MS is not the purpose MS of this message.Assignment message may be clean culture assignment or multicast and broadcast assignment or group assignment message in the present embodiment, the concrete mode of descrambling is, the sign of the MS sign of MS usefulness oneself or the Multimedia Broadcast Multicast Service of oneself enjoying or group id go clean culture assignment or multicast and broadcast assignment or organize assignment message and carry out descrambling, if clean culture assignment or multicast and broadcast assignment or group assignment message descrambling are correct, illustrate that then this MS is the purpose MS of this message, obtain corresponding assignation information simultaneously, otherwise illustrate that this MS is not the purpose MS of this message.
MS descrambling assignation information, and descrambling correct after, obtain to belong to the descending assignment message of this MS, the position of whole ACK running time-frequency resource, calculate the numerical value of descending ack channel index according to the position of descending assignment message in whole descending assignment message of oneself.
Step 203, MS obtain the position of the whole descending ACK running time-frequency resource of BS transmission.
May be for after MS receives descending assignment message, according to the position that descending assignment message is learnt whole descending ACK running time-frequency resource, also may be for receive the position of whole descending ACK running time-frequency resource by broadcast channel.
If obtain the position of whole descending ACK running time-frequency resource in this step by descending assignment message, BS is to adopt above-described method sending descending assignment message, uses Bitmap and assignment message to send together.
This step does not have the sequencing relation with preceding 3 steps, as long as finished before step 204.
Step 204, MS send uplink business data.
MS gives oneself resource and corresponding assignation information according to the BS assignment that obtains in the step 202, uses corresponding block to send uplink business data.Wherein corresponding assignation information comprises the channel logo of HARQ, newly wraps the assignation informations such as sign, modulation coding mode of old bag.
Step 205, receive descending ACK according to the particular location of descending ack channel.
Obtain the particular location of own descending ack channel according to the position of descending ACK index that obtains and whole ACK running time-frequency resource.
MS receives the descending ACK that BS sends according to the particular location of descending ack channel.
Use the method embodiment two of assigning response channel provided by the invention, sending to MS by the scrambling assignment message, which assignment message MS can be one's own assignment message by the descrambling assignment message, do not need to carry sign or the identification informations such as Multimedia Broadcast Multicast Service sign or group id of MS, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, need not carry resource location and the information such as size of this MS on time-frequency of distributing to, MS can be known resource location and the information such as size of this MS on time-frequency of distributing to by Bitmap, because distributing to resource location and the informational needs field such as size of this MS on time-frequency identifies, when being each MS assigned resources in IEEE 802.16e, these information need take the field that length is 10 bit usually, and its occupation space in Bitmap just takies several Bit that running time-frequency resource equates with it, use Bitmap to save down to distribute to resource location and information such as the size resource that take of this MS on time-frequency, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, in IEEE 802.16e, support under many antennas situation, because can on different antennas, transmit different things simultaneously in the time of many antennas, so just make that transmitting a plurality of encoding blocks simultaneously becomes possibility, therefore support under many antennas situation in system, have a plurality of encoding blocks simultaneously in the transmission of eating dishes without rice or wine, transmit the fast situation of a plurality of codings simultaneously and can be called the multilayer transmission.Business datum needed initial data is encoded before transmission, modulation then, and different encoding blocks need divide the coding that comes, if the words of ofdm system just need again through the OFDM modulation.Receiving terminal carries out corresponding demodulating and decoding and obtains corresponding raw information.
Support under the situation of many antennas, when obtaining the uplink ACK channel position, the flow process of the method embodiment three of assigning response channel provided by the invention as shown in Figure 3:
Step 301, BS broadcast downstream Bitmap and corresponding assignment message.
Owing to need to support the situation of multilayer transmission, therefore need in this descending Bitmap, add the information of layer, allow all MS know the number of plies of the maximum that current assignment is arranged, Bit position among this Bitmap is except being used in reference to timing resource frequently, also be used to write down the number of plies of the maximum of current assignment, write down all unit running time-frequency resources and formed the situation of block and how many layers each block has under multilayer transmission situation situation.
Under the situation that has the multilayer transmission, the block that might have transmits a plurality of encoding blocks simultaneously, has the multilayer transmission, and for example bitmap is divided into 3 block, and one of them block is the individual layer transmission, and other two block are the multilayer transmission; Also might be the multilayer transmission by 3 block.The bitmap of this moment, need the number of plies, the running time-frequency resource of the transmission of indication multilayer distribution, and which block be the multilayer transmission; The Bit of the indication multilayer transmission number of plies is placed on the front of the resource Bit of assignment running time-frequency resource usually, because the transmission of common multilayer what in 4 layers, therefore use 2 Bit to represent, when all block was the multilayer transmission, indicating which block was that the Bit position that multilayer is transmitted can be omitted.
Now illustrate the Bitmap of the number of plies indication that comprises multilayer transmission, suppose that all can assignment two-dimentional running time-frequency resource 4 unit running time-frequency resources are arranged, each block is the multilayer transmission, this moment, Bitmap was as shown in table 2:
Table 2, under the situation of multilayer transmission the Bitmap example
Bitmap in the table 2 has 6 Bit, wherein the 1st, the number of plies of the 2nd bit representation multilayer transmission, how many coded block transmission are also promptly arranged simultaneously, " 0 " " 1 " expression has 2 layers, how actual the use represents 2 layers with " 01 ", " 10 " expression haves three layers, and " 11 " expression has 4 layers, and individual layer does not need to indicate the number of plies; The 3rd to the 6th situation of indicating the block unit of taking running time-frequency resource, wherein the 4th and the 6th is " 1 ", and other Bit positions are " 0 ", illustrates that Bitmap is that the running time-frequency resource of 4 units has carried out assignment, be divided into 2 block, respectively taken the running time-frequency resource of 2 units.Therefore this Bitmap represents that 4 unit running time-frequency resources are given two block, have respectively taken the running time-frequency resource of 2 units, and each block all transmits 2 encoding blocks simultaneously, i.e. the number of plies of multilayer transmission is two-layer.
When having part block transmission data to be single encoding block, need to use some Bit to indicate whether corresponding block is the multilayer transmission among the Bitmap, these indicate whether corresponding block is that the common order of the Bit root that multilayer is transmitted is being used in reference to the timing back, resource Bit position of resource frequently.Now illustrate the Bitmap of the number of plies indication that comprises multilayer transmission, suppose that all can assignment two-dimentional running time-frequency resource 4 unit running time-frequency resources are arranged, part block is the multilayer transmission, this moment, Bitmap was as shown in table 3:
Table 3, under the situation of multilayer transmission the Bitmap example
Bitmap in the table 3 has 8 Bit, wherein the 1st, the number of plies of the 2nd bit representation multilayer transmission, how many coded block transmission are also promptly arranged simultaneously, " 0 " " 1 " expression has 2 layers, and how actual the use represents 2 layers with " 01 ", and " 10 " expression haves three layers, " 11 " expression has 4 layers, this is that a kind of execution mode is given an example, and also can adopt other mode to indicate, and individual layer does not need to indicate the number of plies; The 3rd to the 6th situation of indicating the block unit of taking running time-frequency resource, wherein the 4th and the 6th is " 1 ", and other Bit positions are " 0 ", illustrates that Bitmap is that the running time-frequency resource of 4 units has carried out assignment, be divided into 2 block, respectively taken the running time-frequency resource of 2 units; The 7th is " 0 " corresponding first block, illustrates that first block is not the multilayer transmission; The 8th is " 1 " corresponding second block, illustrates that second block is the multilayer transmission.Therefore this Bitmap represents that 4 unit running time-frequency resources are given two block, have respectively taken the running time-frequency resource of 2 units, first block is not the multilayer transmission, second block is the multilayer transmission, can transmit 2 encoding blocks simultaneously, i.e. the number of plies of multilayer transmission is two-layer.
Further, when supporting many antennas, odd encoder piece, multilayer transmission, may adopt the mode of space division multiplexing (SM, Space Multiplexing), also may adopt the mode of multi-user's multiple-input, multiple-output (MU-MIMO, Multi-User Multiple Input Multiple Output).
A MS only needs an assignment message when being SM, and this message uses the sign of this MS or Multimedia Broadcast Multicast Service identifies or group id comes scrambling, and this assignment message need provide the assignation information under the SM situation; Doing under the situation of MU-MIMO and may all need an assignment message by each layer, because each clean culture or multicast and broadcast or group assignment message are to different MS or different Multimedia Broadcast Multicast Service or different groups, these clean cultures or multicast and broadcast or group assignment message need come scrambling with the sign of different MS or different Multimedia Broadcast Multicast Service sign or group ids.
When different block may carry out many antennas, odd encoder piece, multilayer transmission in different ways, also need to indicate the multilayer transmission means of block employing among the Bitmap, can indicate the Bit position order root of multilayer transmission means be used in reference to the timing back, resource Bit position of resource frequently usually.
Present embodiment has provided the method for the multilayer transmission means of two kinds of indication block employing:
Method one, be respectively different multilayer transmission meanss and distribute corresponding Bit position, the corresponding corresponding block of the Bit in each multilayer transmission means, whether the corresponding block of indication has adopted this multilayer transmission means.
Now illustrate the Bitmap of the number of plies indication that comprises the multilayer transmission, suppose that the two-dimentional running time-frequency resource that all can assignment has 4 unit running time-frequency resources, and the block of SM is used in indication earlier, and the block of MU-MIMO is used in indication again, and the Bitmap structure is as shown in table 4 under the situation of multilayer transmission:
Table 4, under the situation of multilayer transmission the Bitmap example
Bitmap in the table 4 has 9 Bit, wherein the 1st, the number of plies of the many code words of the 2nd bit representation, and " 0 " " 1 " expression has 2 layers;
The 3rd to the 6th situation of indicating the block unit of taking running time-frequency resource, wherein the 4th and the 6th is " 1 ", and other Bit positions are " 0 ", illustrates that this Bitmap is that the running time-frequency resource of 4 units has carried out assignment, be divided into 2 block, respectively taken the running time-frequency resource of 2 units;
The 7th, the 8th has been write down two block and whether has used the SM mode, the 7th is " 0 ", and corresponding first block illustrates that first block does not adopt the mode of SM, the 8th is " 1 ", corresponding second block illustrates that second block adopted the mode of SM, again with reference to the information of front as can be known, second block adopted the mode of SM, the number of plies of multilayer transmission is two-layer, can transmit 2 encoding blocks simultaneously, is assigned to the running time-frequency resource of two units;
Because the 8th has been write down second block and adopted the mode of SM, so does not need to write down once more the mode whether second block has adopted MU-MIMO, whether record block has adopted Bit position of mode region allocation of MU-MIMO to get final product.The 9th has been write down first block and whether has used the MU-MIMO mode, the 9th is " 1 ", corresponding first block, illustrate that first block has adopted the mode of MU-MIMO, with reference to the information of front as can be known, first block has adopted the mode of MU-MIMO again, and the number of plies of multilayer transmission is two-layer, can transmit 2 encoding blocks simultaneously, be assigned to the running time-frequency resource of two units.
Need to prove, also the Bit position of indication MU-MIMO can be placed on the front.
Method two, be respectively different block and distribute corresponding Bit position, which kind of multilayer transmission means corresponding block has adopted.
Now illustrate the Bitmap of the number of plies indication that comprises the multilayer transmission, suppose that the two-dimentional running time-frequency resource that all can assignment has 4 unit running time-frequency resources, for distributing two Bit, each block indicate it whether to adopt the multilayer transmission, and adopted which kind of multilayer transmission means, do not adopt the multilayer transmission with " 00 " expression in the present embodiment, the SM mode has been adopted in " 01 " expression, and the mode of MU-MIMO has been adopted in " 11 " expression, and this moment, the Bitmap structure was as shown in table 5 under the situation of multilayer transmission:
Table 5, under the situation of multilayer transmission the Bitmap example
Bitmap in the table 5 has 10 Bit, wherein the 1st, the number of plies of the many code words of the 2nd bit representation, and " 0 " " 1 " expression has 2 layers;
The 3rd to the 6th situation of indicating the block unit of taking running time-frequency resource, wherein the 4th and the 6th is " 1 ", and other Bit positions are " 0 ", illustrates that this Bitmap is that the running time-frequency resource of 4 units has carried out assignment, be divided into 2 block, respectively taken the running time-frequency resource of 2 units;
The 7th, the 8th has been write down first block and whether has adopted the multilayer transmission, and adopted which kind of multilayer transmission means, the 7th is " 1 ", the 8th is " 1 ", illustrates that first block has adopted the mode of MU-MIMO, again with reference to the information of front as can be known, first block has adopted the mode of MU-MIMO, the number of plies of multilayer transmission is two-layer, can transmit 2 encoding blocks simultaneously, is assigned to the running time-frequency resource of two units.
The 9th, the 10th has been write down second block and whether has adopted the multilayer transmission, and adopted which kind of multilayer transmission means, the 9th is " 0 ", the 10th is " 1 ", illustrates that second block adopted the mode of SM, again with reference to the information of front as can be known, second block adopted the mode of SM, the number of plies of multilayer transmission is two-layer, can transmit 2 encoding blocks simultaneously, is assigned to the running time-frequency resource of two units.
BS sends the assignment message that sends each block correspondence behind the Bitmap, when sending assignment message, and the description that the mode that can adopt sees above.
Step 302, MS obtain the situation that each block takies the multilayer transmission of resource and block employing by resolving bitmap, and further the descrambling assignation information obtains the uplink ACK index.
MS can obtain the situation that each block takies the multilayer transmission of resource and block employing according to Bitmap after receiving this Bitmap and corresponding assignment message.
Afterwards, MS carries out descrambling to the assignment message of each layer correspondence of each block, if the assignment message descrambling is correct, illustrates that then this MS is the purpose MS of this message, otherwise illustrates that this MS is not the purpose MS of this message.Assignment message may be clean culture assignment or multicast and broadcast assignment or group assignment message in the present embodiment, the concrete mode of descrambling is, the sign of the MS sign of MS usefulness oneself or the Multimedia Broadcast Multicast Service of oneself enjoying or group id go clean culture assignment or multicast and broadcast assignment or organize assignment message and carry out descrambling, if clean culture assignment or multicast and broadcast assignment or group assignment message descrambling are correct, illustrate that then this MS is the purpose MS of this message, otherwise illustrate that this MS is not the purpose MS of this message.
After judging that descrambling is correct, acquisition belongs to the descending assignment message of this MS, owing to there is the situation of multilayer transmission, therefore need according to the position and the number of plies of the correspondence numerical value that just can calculate the uplink ACK channel indexes of own descending assignment message in whole descending assignment message.
Owing to there is the situation of multilayer transmission, in the running time-frequency resource of ack channel, at first the ack channel order assignment is given the assignment of ground floor correspondence, distributing to the second layer, then be third and fourth ... layer.For instance, be example with the Bitmap shown in the table 2, first block is " 1 " at the ack channel index of the assignment message distribution of ground floor correspondence; Second block is " 2 " at the ack channel index of the assignment message distribution of ground floor correspondence; First block is " 3 " at the ack channel index of the assignment message distribution of second layer correspondence; Second block is " 4 " at the ack channel index of the assignment message distribution of second layer correspondence; Be the assignment message of first block in second layer correspondence if MS judges the assignment message of descrambling success by Bitmap, then its ack channel index is " 3 ".
No matter which kind of mode Bitmap adopts write down the number of plies of multilayer transmission, and which block is a multilayer, and MS is as long as calculate corresponding A CK channel indexes according to the result who parses.
Step 303, MS obtain the position of the whole uplink ACK running time-frequency resource of BS transmission.
May be for after MS receives up assignment message, according to the position that up assignment message is learnt whole uplink ACK running time-frequency resource, also may be for receive the position of whole uplink ACK running time-frequency resource by broadcast channel.
If obtain the position of whole ACK running time-frequency resource in this step by up assignment message, BS is to adopt above-described method sending up assignment message, uses Bitmap and assignment message to send together.
This step does not have the sequencing relation with preceding 3 steps, as long as finished before step 304.
Step 304, obtain the particular location of uplink ACK channel, then send up ACK.
Obtain the particular location of own uplink ACK channel according to the position of uplink ACK index that obtains and whole ACK running time-frequency resource.Then send up ACK.
Use the method embodiment three of assigning response channel provided by the invention, sending to MS by the scrambling assignment message, which assignment message MS can be one's own assignment message by the descrambling assignment message, do not need to carry sign or the identification informations such as Multimedia Broadcast Multicast Service sign or group id of MS, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, need not carry resource location and the information such as size of this MS on time-frequency of distributing to, MS can be known resource location and the information such as size of this MS on time-frequency of distributing to by Bitmap, because distributing to resource location and the informational needs field such as size of this MS on time-frequency identifies, when being each MS assigned resources in IEEE 802.16e, these information need take the field that length is 10 bit usually, and its occupation space in Bitmap just takies several Bit that running time-frequency resource equates with it, use Bitmap to save down to distribute to resource location and information such as the size resource that take of this MS on time-frequency, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Support under the situation of many antennas, send when obtaining descending ack channel position, the flow process of the method embodiment four of assigning response channel provided by the invention as shown in Figure 4:
Step 401, BS broadcast upstream Bitmap and corresponding assignment message.
Broadcast upstream Bitmap and corresponding assignment message in this step, basic identical with broadcast downstream Bitmap in the step 301 and corresponding assignment message, its difference only is, what Bitmap in the step 301 and corresponding assignment message write down is descending assignation information, what write down in this step is uplink information, no longer is repeated in this description at this.
Step 402, MS obtain the situation that each block takies the multilayer transmission of resource and block employing by resolving bitmap, and further the descrambling assignation information obtains descending ACK index.
MS can obtain the situation that each block takies the multilayer transmission of resource and block employing according to Bitmap after receiving this Bitmap and corresponding assignment message.
Afterwards, MS carries out descrambling to the assignment message of each layer correspondence of each block, if the assignment message descrambling is correct, illustrates that then this MS is the purpose MS of this message, otherwise illustrates that this MS is not the purpose MS of this message.Assignment message may be the clean culture assignment in the present embodiment, perhaps multicast and broadcast assignment, perhaps organize assignment message, the concrete mode of descrambling is, the sign of the MS sign of MS usefulness oneself or the Multimedia Broadcast Multicast Service of oneself enjoying or group id go the clean culture assignment or the multicast and broadcast assignment of each layer correspondence of each block or organize assignment message and carry out descrambling, if clean culture assignment or multicast and broadcast assignment or group assignment message descrambling are correct, illustrate that then this MS is the purpose MS of this message, obtain corresponding assignation information simultaneously, otherwise illustrate that this MS is not the purpose MS of this message.
After judging that descrambling is correct, acquisition belongs to the descending assignment message of this MS, owing to there is the situation of multilayer transmission, therefore need according to the position and the number of plies of the correspondence numerical value that just can calculate the uplink ACK channel indexes of own descending assignment message in whole descending assignment message.
Owing to there is the situation of multilayer transmission, in the running time-frequency resource of ack channel, at first the ack channel order assignment is given the assignment of ground floor correspondence, distributing to the second layer, then be third and fourth ... layer.For instance, be example with the Bitmap shown in the table 2, first block is " 1 " at the ack channel index of the assignment message distribution of ground floor correspondence; Second block is " 2 " at the ack channel index of the assignment message distribution of ground floor correspondence; First block is " 3 " at the ack channel index of the assignment message distribution of second layer correspondence; Second block is " 4 " at the ack channel index of the assignment message distribution of second layer correspondence; Be the assignment message of first block in second layer correspondence if MS judges the assignment message of descrambling success by Bitmap, then its ack channel index is " 3 ".
No matter which kind of mode Bitmap adopts write down the number of plies of multilayer transmission, and which block is a multilayer, and MS is as long as calculate corresponding A CK channel indexes according to the result who parses.
Step 403, MS obtain the position of the whole descending ACK running time-frequency resource of BS transmission.
May be for after MS receives descending assignment message, according to the position that descending assignment message is learnt whole descending ACK running time-frequency resource, also may be for receive the position of whole descending ACK running time-frequency resource by broadcast channel.
If obtain the position of whole descending ACK running time-frequency resource in this step by descending assignment message, BS is to adopt above-described method sending descending assignment message, uses Bitmap and assignment message to send together.
This step does not have the sequencing relation with preceding 3 steps, as long as finished before step 404.
Step 404, MS send uplink business data.
MS gives own resource according to the BS assignment that obtains in the step 402, and corresponding assignation information, the corresponding uplink business data of transmission oneself in the layer of the correspondence of corresponding block.Wherein corresponding assignation information comprises the channel logo of HARQ, newly wraps the assignation informations such as sign, modulation coding mode of old bag.
Step 405, receive descending ACK according to the particular location of descending ack channel.
Obtain the particular location of own descending ack channel according to the position of descending ACK index that obtains and whole ACK running time-frequency resource.
MS receives the descending ACK that BS sends according to the particular location of descending ack channel.
Use the method embodiment four of assigning response channel provided by the invention, sending to MS by the scrambling assignment message, which assignment message MS can be one's own assignment message by the descrambling assignment message, do not need to carry sign or the identification informations such as Multimedia Broadcast Multicast Service sign or group id of MS, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, need not carry resource location and the information such as size of this MS on time-frequency of distributing to, MS can be known resource location and the information such as size of this MS on time-frequency of distributing to by Bitmap, because distributing to resource location and the informational needs field such as size of this MS on time-frequency identifies, when being each MS assigned resources in IEEE 802.16e, these information need take the field that length is 10 bit usually, and its occupation space in Bitmap just takies several Bit that running time-frequency resource equates with it, use Bitmap to save down to distribute to resource location and information such as the size resource that take of this MS on time-frequency, therefore, effectively reduced the size of message of BS broadcasting, the resource that makes high-power broadcasts message take obtains reducing, interference mutual between the BS is also alleviated, and has improved the performance of system.
Further, because Multimedia Broadcast Multicast Service does not need ACK, can not be its assigning ACK just also, may a plurality of ACK be arranged a group in the group assignment business, need distribute a plurality of ack channels for it, the ACK index of group assignment can be placed on the assignment message the inside of group assignment, therefore can increase the Bit position of indication Multimedia Broadcast Multicast Service or group assignment in bitmap.
Now illustrate the Bitmap that supports the indication Multimedia Broadcast Multicast Service, suppose that all can assignment two-dimentional running time-frequency resource 4 unit running time-frequency resources are arranged, this moment, Bitmap was as shown in table 6:
Table 6, under the situation of multilayer transmission the Bitmap example
Bitmap in the table 6 has 6 Bit, the 1st to the 4th situation of indicating the block unit of taking running time-frequency resource wherein, wherein the 2nd and the 4th is " 1 ", other Bit positions are " 0 ", illustrate that Bitmap is that the running time-frequency resource of 4 units has carried out assignment, be divided into 2 block, respectively taken the running time-frequency resource of 2 units; The 5th is not Multimedia Broadcast Multicast Service for " 0 " indicates first block corresponding service, and its ack channel index is " 1 "; The 6th is indicated second block corresponding service for " 1 " is Multimedia Broadcast Multicast Service, does not need ack channel.
Support the Bitmap of indication group assignment to support that the Bitmap of indication Multimedia Broadcast Multicast Service is similar, be not described in detail in this.
The method embodiment one, two, three, four of follow-up flow process and assigning response channel provided by the invention is similar substantially, is not described in detail in this.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises the steps: when carrying out
A kind of method of assigning response channel comprises:
Receive the assignment message of the use sign scrambling of base station transmission;
The described assignment message of descrambling, descrambling success then obtain the index of described terminal responds channel by the position of described assignment message in whole assignment messages;
The index by described responder link and the position of whole responder link running time-frequency resources obtain the position of described terminal responds channel.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The system embodiment of the assigning response channel that the embodiment of the invention provides comprises:
The base station is used for using sign scrambling assignment message, and sends;
Terminal is used for the described assignment message of descrambling, and the descrambling success then obtains the index of described terminal responds channel by the position of described assignment message in whole assignment messages; The index by described responder link and the position of described whole responder link running time-frequency resources obtain the position of described terminal responds channel.
In the system embodiment of the assigning response channel that the embodiment of the invention provides, base station and terminal detailed structure the vide infra base station that the embodiment of the invention is provided, the description of terminal embodiment are not described in detail in this.
The base station embodiment that the embodiment of the invention provides comprises:
Scrambling unit is used for using sign scrambling assignment message;
The assignment message radio unit is used for sending described assignment message to terminal, so that described terminal can be passed through the described assignment message of descrambling, obtains the index of described terminal responds channel.
Bit mapping graph unit, be used to use the resource bit that is used in reference to timing frequency resource to constitute the bit mapping graph, resource bit is corresponding with running time-frequency resource unit, and value is promptly represented the running time-frequency resource number of blocks with assigned of described correspondence in the described bit mapping graph for the quantity of the resource bit of " 1 ";
Bit mapping graph radio unit is used for to the described bit mapping graph of described terminal broadcast transmission; So that terminal can be known the running time-frequency resource number of blocks with assigned.
Number of plies unit is used for increasing indication multilayer transmission number of plies bit at described bit mapping graph; The responder link indexed sequential numbering of each layer correspondence, the last layer serial number followed in the responder link index of following one deck correspondence.
Whether type units, being used for increasing the indication corresponding blocks at described bit mapping graph is the bit of Multimedia Broadcast Multicast Service or group assignment.
Wherein, scrambling unit comprises:
First scrambling unit is used to use the sign scrambling clean culture assignment message of terminal;
Or second scrambling unit, be used to use Multimedia Broadcast Multicast Service sign scrambling multicast and broadcast assignment message;
Or the 3rd scrambling unit, be used to use group id scrambling group assignment message.
The terminal embodiment that the embodiment of the invention provides comprises:
The assignment message receiving element is used to receive the assignment message of the use sign scrambling that the base station sends;
Descrambling assignment message unit is used for the described assignment message of descrambling;
The index acquiring unit is used for obtaining the index of described terminal responds channel by the position of described assignment message in whole assignment messages after described descrambling success;
The position acquiring unit, the index by described responder link and the position of whole responder link running time-frequency resources obtain the position of described terminal responds channel.
Bit mapping graph receiving element is used to receive the bit mapping graph that the base station sends;
The descrambling resource allocation unit is used for knowing the running time-frequency resource number of blocks with assigned by described bit mapping graph.
Number of plies acquiring unit is used for obtaining the multilayer transmission number of plies by described bit mapping graph indication multilayer transmission number of plies bit; The responder link indexed sequential numbering of each layer correspondence, the last layer serial number followed in the responder link index of following one deck correspondence.
Whether the type acquiring unit, being used for by described bit mapping graph indication corresponding blocks is whether the bit of multilayer transmission to obtain the indication corresponding blocks be the information of Multimedia Broadcast Multicast Service or group assignment.
Descending response unit is used for when described responder link is descending responder link, and described terminal receives descending the replying that the base station is returned according to the particular location of described descending responder link;
Up response unit is used for when described responder link is up responder link, and described terminal sends up replying according to the particular location of described up responder link to the base station.
Wherein, descrambling assignment message unit comprises:
The first descrambling assignment message unit is used to use the sign descrambling clean culture assignment message of terminal;
Or the second descrambling assignment message unit, be used to use Multimedia Broadcast Multicast Service sign descrambling multicast and broadcast assignment message;
Or the 3rd descrambling assignment message unit, be used to use group id descrambling group assignment message.
The occupation mode of the system of the assigning response channel that the embodiment of the invention provides, base station, terminal embodiment can no longer repeat at this with reference to the description of the method embodiment of the assigning response channel that above embodiment of the invention is provided.
More than the method, system and device of a kind of assigning response channel provided by the present invention are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (18)
1, a kind of method of assigning response channel is characterized in that, comprising:
Send the assignment message that uses the sign scrambling to terminal; So that described terminal can be passed through the described assignment message of descrambling, obtain the index of described terminal responds channel by the position of described assignment message in whole assignment messages; Further the position of the index by described responder link and whole responder link running time-frequency resources obtains the position of described terminal responds channel.
2, the method for assigning response channel as claimed in claim 1 is characterized in that, described descrambling assignment message comprises:
Use the sign descrambling clean culture assignment message of terminal;
Or use Multimedia Broadcast Multicast Service to identify descrambling multicast and broadcast assignment message;
Or use group id descrambling group assignment message.
3, the method for assigning response channel as claimed in claim 1 is characterized in that, described method also comprises:
Receive the bit mapping graph that is used for Resources allocation that the base station sends, described bit mapping graph is used in reference to the timing resource bit formation of resource frequently, resource bit is corresponding with running time-frequency resource unit, and value is promptly represented the running time-frequency resource number of blocks with assigned of described correspondence in the described bit mapping graph for the quantity of the resource bit of " 1 "; Know the running time-frequency resource number of blocks with assigned by described bit mapping graph.
4, the method for assigning response channel as claimed in claim 3 is characterized in that, described method also comprises:
Obtain the multilayer transmission number of plies by indication multilayer transmission number of plies bit in the described bit mapping graph;
The responder link indexed sequential numbering of each layer correspondence, the last layer serial number followed in the responder link index of following one deck correspondence.
5, the method for assigning response channel as claimed in claim 3 is characterized in that, described method also comprises:
Whether by indication corresponding blocks in the described bit mapping graph is whether the bit of Multimedia Broadcast Multicast Service or group assignment to obtain the indication corresponding blocks be the information of Multimedia Broadcast Multicast Service or group assignment.
As the method for claim 1,2,3,4 or 5 described assigning response channels, it is characterized in that 6, described method also comprises:
When described responder link was descending responder link, described terminal received descending the replying that the base station is returned according to the particular location of described descending responder link; Or,
When described responder link was up responder link, described terminal sent up replying according to the particular location of described up responder link to the base station.
7, a kind of system of assigning response channel is characterized in that, comprising:
The base station is used for using sign scrambling assignment message, and sends;
Terminal is used for the described assignment message of descrambling, and the descrambling success then obtains the index of described terminal responds channel by the position of described assignment message in whole assignment messages; The index by described responder link and the position of described whole responder link running time-frequency resources obtain the position of described terminal responds channel.
8, a kind of base station is characterized in that, comprising:
Scrambling unit is used for using sign scrambling assignment message;
The assignment message radio unit is used for sending described assignment message to terminal, so that described terminal can be passed through the described assignment message of descrambling, obtains the index of described terminal responds channel.
9, base station as claimed in claim 8 is characterized in that, described scrambling unit comprises:
First scrambling unit is used to use the sign scrambling clean culture assignment message of terminal;
Or second scrambling unit, be used to use Multimedia Broadcast Multicast Service sign scrambling multicast and broadcast assignment message;
Or the 3rd scrambling unit, be used to use group id scrambling group assignment message.
10, base station as claimed in claim 8 is characterized in that, described base station also comprises:
Bit mapping graph unit, be used to use the resource bit that is used in reference to timing frequency resource to constitute the bit mapping graph, resource bit is corresponding with running time-frequency resource unit, and value is promptly represented the running time-frequency resource number of blocks with assigned of described correspondence in the described bit mapping graph for the quantity of the resource bit of " 1 ";
Bit mapping graph radio unit is used for to the described bit mapping graph of described terminal broadcast transmission; So that terminal can be known the running time-frequency resource number of blocks with assigned.
11, as claim 8,9 or 10 described base stations, it is characterized in that described base station also comprises:
Number of plies unit is used for increasing indication multilayer transmission number of plies bit at described bit mapping graph; The responder link indexed sequential numbering of each layer correspondence, the last layer serial number followed in the responder link index of following one deck correspondence.
12, base station as claimed in claim 11 is characterized in that, described base station also comprises:
Whether type units, being used for increasing the indication corresponding blocks at described bit mapping graph is the bit of Multimedia Broadcast Multicast Service or group assignment.
13, a kind of terminal is characterized in that, comprising:
The assignment message receiving element is used to receive the assignment message of the use sign scrambling that the base station sends;
Descrambling assignment message unit is used for the described assignment message of descrambling;
The index acquiring unit is used for obtaining the index of described terminal responds channel by the position of described assignment message in whole assignment messages after described descrambling success;
The position acquiring unit, the index by described responder link and the position of whole responder link running time-frequency resources obtain the position of described terminal responds channel.
14, terminal as claimed in claim 13 is characterized in that, described descrambling assignment message unit comprises:
The first descrambling assignment message unit is used to use the sign descrambling clean culture assignment message of terminal;
Or the second descrambling assignment message unit, be used to use Multimedia Broadcast Multicast Service sign descrambling multicast and broadcast assignment message;
Or the 3rd descrambling assignment message unit, be used to use group id descrambling group assignment message.
15, terminal as claimed in claim 13 is characterized in that, described terminal also comprises:
Bit mapping graph receiving element is used to receive the bit mapping graph that the base station sends;
The descrambling resource allocation unit is used for knowing the running time-frequency resource number of blocks with assigned by described bit mapping graph.
16, terminal as claimed in claim 15 is characterized in that, described terminal also comprises:
Number of plies acquiring unit is used for obtaining the multilayer transmission number of plies by described bit mapping graph indication multilayer transmission number of plies bit; The responder link indexed sequential numbering of each layer correspondence, the last layer serial number followed in the responder link index of following one deck correspondence.
17, terminal as claimed in claim 15 is characterized in that, described terminal also comprises:
Whether the type acquiring unit, being used for by described bit mapping graph indication corresponding blocks is whether the bit of multilayer transmission to obtain the indication corresponding blocks be the information of Multimedia Broadcast Multicast Service or group assignment.
18, as claim 13,14,15,16 or 17 described terminals, it is characterized in that described terminal also comprises:
Descending response unit is used for when described responder link is descending responder link, and described terminal receives descending the replying that the base station is returned according to the particular location of described descending responder link; Or,
Up response unit is used for when described responder link is up responder link, and described terminal sends up replying according to the particular location of described up responder link to the base station.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045143B (en) * | 2009-10-21 | 2013-07-10 | 华为技术有限公司 | Multi-antenna feedback mapping method and device |
| CN103250452A (en) * | 2012-12-31 | 2013-08-14 | 华为技术有限公司 | A transmission method, an UE and a base station for a neighbour identity code |
| CN105409287A (en) * | 2013-08-06 | 2016-03-16 | 松下电器（美国）知识产权公司 | Wireless communication method for D2D communication and UE |
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| KR100429545B1 (en) * | 1999-08-17 | 2004-04-28 | 삼성전자주식회사 | Method for communicating scrambling code id in mobile communication system |
| US20070183385A1 (en) * | 2003-10-10 | 2007-08-09 | Hao Bi | Apparatus and method for distinguishing a frame on channel shared by multiple users |
| US8325656B2 (en) * | 2006-02-07 | 2012-12-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Arrangement and method for extended control plane signalling in a high speed packet data communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102045143B (en) * | 2009-10-21 | 2013-07-10 | 华为技术有限公司 | Multi-antenna feedback mapping method and device |
| CN103250452A (en) * | 2012-12-31 | 2013-08-14 | 华为技术有限公司 | A transmission method, an UE and a base station for a neighbour identity code |
| CN105409287A (en) * | 2013-08-06 | 2016-03-16 | 松下电器（美国）知识产权公司 | Wireless communication method for D2D communication and UE |
| CN105409287B (en) * | 2013-08-06 | 2019-11-29 | 太阳专利信托公司 | Wireless communication method, user equipment and integrated circuit for device-to-device communication |
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