CN101132334B

CN101132334B - Radio Resource Marking Method for Multicast Broadcast Service in Global Interoperability System for Microwave Access

Info

Publication number: CN101132334B
Application number: CN2007101546554A
Authority: CN
Inventors: 宋建全; 许玲; 褚丽; 黄郑
Original assignee: ZTE Corp
Current assignee: Rugao Changjiang Science And Technology Industry Co Ltd
Priority date: 2007-09-20
Filing date: 2007-09-20
Publication date: 2012-02-08
Anticipated expiration: 2027-09-20
Also published as: CN101132334A

Abstract

The invention discloses a method for marking radio resources of multicast broadcasting services in a microwave access global interoperability system. Wherein, a new resource unit is defined, and the occupancy of the wireless resource of the multicast broadcast service is marked by a combination of the resource unit, the resource unit offset, and the resource unit number. Through the invention, the efficiency of describing and transmitting the resource information occupied by the MBS can be improved.

Description

The multicast broadcasting service wireless resource marking method of WiMAX system

Technical field

The present invention relates to the communications field, relate more specifically to a kind of multicast broadcasting service wireless resource marking method of WiMAX system.

Background technology

In the IEEE802.16e-2005 standard, the resource of supporting the Multimedia Broadcast Multicast Service (Multicast and Broadcast Service, be called for short MBS) of grand branch collection to take is described in Multimedia Broadcast Multicast Service mapping (MBS_MAP) message.Data of different types information unit (Data Information Element in MBS_MAP message; Be called for short DATA_IE) in; Not only describe the resource location information that the MBS business takies in this frame, and described the position of next MBS_MAP message with the subchannel offset/symbol offset of this frame and the combination of subchannel number/number of symbols.The position of next MBS_MAP message adopts subframe skew/subchannel offset/symbol offset and subchannel number/number of symbols to describe.Though this resource mark method is very flexible, professional with the MBS that certain time length is arranged for fixed-bandwidth, it is bigger to adopt this mode to describe the resource overhead that the MBS business takies.For this business, be can be once to distribute all resources with mark, do not need to indicate in every frame the skew of next frame and the resource location that in each frame, takies.

In addition, the OFDM of IEEE802.16e-2005 definition (OrthogonalFrequency Division Multiplexing is called for short OFDM) smallest allocation unit is time slot (Slot), and each Slot is the combination of continuous subchannel and continuous symbol number.Professional for MBS and since receive the user possibly be present in the base station around, can not consider that therefore frequency selects problem, the smallest allocation unit professional to MBS can adopt new mode to save the byte number that takies resource description.

Summary of the invention

One or more problems in view of the above the invention provides a kind of multicast broadcasting service wireless resource marking method of new WiMAX system.

In multicast broadcasting service wireless resource marking method according to a kind of WiMAX system of the present invention; Define a kind of new resource units, the situation that takies that the combination through skew of resource units, resource units and resource units number comes the mark multicast broadcasting service wireless resource; Wherein, resource units comprises a plurality of continuous subchannels or whole subchannel.In addition, whether can also increase the multicast broadcasting service wireless resource that is used to represent a sub-frame by the mark of absorb.Wherein, can resource units be set to the resource units of system default, and each resource units can comprise a plurality of continuous subchannels or whole subchannels.

In multicast broadcasting service wireless resource marking method according to another kind of WiMAX system of the present invention; Taking cycle information and taking the situation that takies that the descriptor of resource is come the mark multicast broadcasting service wireless resource in each cycle through multicast broadcasting service wireless resource; Wherein, The descriptor that takies resource in each cycle comprises the frame number in the cycle of taking and takies the resource occupation position in the frame; Wherein, the combination of resource occupation position through skew of resource units, resource units and resource units number that takies in the frame comes mark.

Wherein, can in each cycle, take and whether increase the resource that is used for representing to take frame in the descriptor of resource by the mark of absorb.And increase the mark that is used for representing that next resource occupation position that takies frame is whether identical in can the resource occupation positional information in taking frame.The resource units that can resource units be set to system default.Each resource units can comprise a plurality of continuous subchannels or whole subchannel.

In multicast broadcasting service wireless resource marking method according to another WiMAX system of the present invention; The situation that takies that the positional information that takies resource in multi-frame information of number and each multi-frame is come the mark multicast broadcasting service wireless resource that takies through multicast broadcasting service wireless resource; Wherein, The positional information that takies resource in each multi-frame comprises the frame number that takies in the multi-frame and takies the resource occupation position in the frame; Wherein, the combination of resource occupation position through skew of resource units, resource units and resource units number that takies in the frame comes mark.

Wherein, If the frame number that comprises in each multi-frame is not a system default, the situation that takies that the frame number information that comprises in the positional information that then takies resource in multi-frame information of number, each multi-frame through taking of multicast broadcasting service wireless resource and each multi-frame is come the mark multicast broadcasting service wireless resource.Wherein, can in each multi-frame, take and whether increase the resource that is used for representing to take frame in the positional information of resource by the mark of absorb.And increase the mark that is used for representing that next resource occupation position that takies frame is whether identical in can the resource occupation positional information in taking frame.Wherein, can resource units be set to the resource units of system default, each resource units can comprise a plurality of continuous subchannels or whole subchannels.The frame number that comprises in also can multi-frame is set to system default; For the parameter that is set to system default, in resource mark, then can not be with default parameters.

Through the present invention, can improve and describe and transmit the efficient that MBS takies resource information.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 adopts new MBS radio resource units to come the sketch map of markup resources in the descending sub frame;

Fig. 2 is the sketch map that the several downlink subframe constitutes a multi-frame.

Embodiment

To describe and transmit the efficient that MBS takies wireless resource information in order to improve, can adopt any in following three kinds of methods that the situation that takies of MBS Radio Resource is carried out mark (Fig. 1 shows and adopts new MBS radio resource units to come the situation of markup resources).

Method one: define new resource units.Because professional as far as MBS, can not consider the frequency selectivity problem, so the continuous subchannel number of least resource unit can be whole subchannels, or all subchannels half the, or all subchannels 1/4 etc., this can define flexibly.And the continuous symbol number of MBS service resources unit can be 1 symbol, 2 symbols etc., and this also can define flexibly.In this case, taking resource information and can describe in each subframe without the combination of subchannel offset/symbol offset, subchannel number/symbolic number, but adopt the combination of resource units/resource units skew/resource units number to represent.If resource units is given tacit consent to, then can only adopt the combination of resource units skew/resource units number to represent.Method one is a kind of improvement to resource occupation information flag mode in the subframe.For distinguishing the whether absorb of MBS Radio Resource in this subframe, can also increase the whether absorb of MBS Radio Resource that a mark is represented this subframe; If absorb does not then need the resource units/resource units skew/resource units number of combinations of back to represent occupation condition.

Method two: periodically describe.Periodically describe and comprise periodicity that takies resource and the description that takies resource in each cycle.So-called periodically is exactly that certain MBS business takies resource and has periodically; Such as being one-period with 100 frames; Therefore resource occupation information is just the same in each cycle, takies the frame number that the periodicity of resource must comprise with each cycle and take total periodicity to describe.The description that takies resource in each cycle then can comprise the frame number that takies in the cycle and take the resource occupation position in the frame.With 100 frames is that one-period is an example; It is 0 and 1 two sub-frame that this MBS business has taken sequence number wherein; And the position that takies resource in each subframe still can adopt the combination of subchannel offset/symbol offset, subchannel number/number of symbols to describe, and also can adopt the resource mark method in the method one to describe.In each subframe, whether can also increasing a mark, to represent to take resource information in the next subframe identical, if identical, resource occupation information need not be described in the then next subframe.

Method three: adopt multi-frame to represent (as shown in Figure 2).If the employing multi-frame, then the professional resource mark of MBS can with take the multi-frame number and in multi-frame the position of resource occupation represent.If the number of subframes that multi-frame comprises is not given tacit consent to, then also need comprise the number of subframes that comprises in the multi-frame.Definition several downlink subframe is a multi-frame, and the resource location in the multi-frame can adopt and take resource location in the subframe sequence number that takies in the multi-frame and the subframe and represent.And taking resource location and still can adopt the combination of subchannel offset/symbol offset, subchannel number/symbolic number to describe in each subframe also can adopt the resource mark method in the method one to describe.Whether in each subframe, can also increasing a mark, to represent to take resource information in the next subframe identical, if identical, resource occupation information need not be described in the then next subframe.

The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.

Claims

1. A radio resource marking method for multicast broadcasting services of the Global Interoperability System for Microwave Access, characterized in that a new resource unit is defined, and the multicast broadcast is marked by a combination of resource units, resource unit offsets, and resource unit numbers For the occupancy of service radio resources, use the downlink subframe to send the marked occupancy; wherein, the resource unit includes multiple consecutive subchannels or all subchannels.

2. The method for marking radio resource of multicast broadcast service according to claim 1, characterized in that adding a flag for indicating whether the radio resource of multicast broadcast service of a subframe is fully occupied.

3. The method for marking multicast broadcast service wireless resources according to claim 1 or 2, characterized in that the resource unit is set as a system default resource unit.

4. A radio resource marking method for multicast broadcasting services in the Global Interoperability System for Microwave Access, characterized in that the multicast broadcasting service is marked by the occupation period information of the radio resources of the multicast broadcast service and the description information of the occupied resources in each period The occupancy of wireless resources of the broadcast service, and use the downlink subframe to send the marked occupancy situation, wherein the description information of the occupied resources in each period includes the frame sequence number information in the occupation period and the resource occupancy position information in the occupation frame , wherein, the resource occupation position in the occupation frame is marked by a combination of resource unit, resource unit offset, and resource unit number.

5. The radio resource marking method for multicast broadcasting services according to claim 4, characterized in that, in the description information of resources occupied in each cycle, a method for indicating whether the resources in the occupied frame are fully occupied is added markup.

6. The radio resource marking method for multicast broadcasting services according to claim 4 or 5, wherein the resource occupation position information in the occupation frame is added to indicate whether the resource occupation position in the next occupation frame is same markup.

7. The method for marking radio resources of the multicast broadcast service according to claim 6, wherein the resource unit is set as a system default resource unit.

8. The radio resource marking method for multicast broadcasting services according to claim 7, wherein the resource unit includes a plurality of continuous sub-channels or all sub-channels.

9. A method for marking radio resources of multicast broadcasting services in the global interoperability system for microwave access, characterized in that, the wireless resources of multicast broadcasting services are used to identify the number of occupied multiframes and the location information of occupied resources in each multiframe Marking the occupancy of wireless resources of the multicast broadcast service, and sending the marked occupancy using a downlink subframe, wherein the position information of the resource occupancy in each multiframe includes the frame sequence number information in the occupancy multiframe and the information in the occupancy frame resource occupancy position information, wherein the resource occupation position in the occupancy frame is marked by a combination of resource unit, resource unit offset, and resource unit number.

10. The multicast broadcast service wireless resource marking method according to claim 9, characterized in that, the occupied multiframe number information of the multicast broadcast service wireless resource, the position information of occupied resources in each multiframe, and the The frame number information contained in the frame is used to mark the occupancy of the radio resources of the multicast broadcast service, and when the frame number contained in each multiframe is the default, the frame number information contained in each multiframe is not required.

11. The radio resource marking method for multicast broadcasting services according to claim 9 or 10, characterized in that, in the location information of resources occupied in each multiframe, a method for indicating whether the resources in the occupied frame is A marker that is fully occupied.

12. The radio resource marking method for multicast broadcasting services according to claim 11, characterized in that, in the resource occupancy position information in the occupancy frame, an indicator for indicating whether the resource occupancy position in the next occupancy frame is the same is added mark.

13. The method for marking multicast broadcast service wireless resources according to claim 12, characterized in that the resource unit is set as a system default resource unit.

14. The radio resource marking method for multicast broadcasting services according to claim 13, wherein the resource unit includes a plurality of continuous sub-channels or all sub-channels.