CN1856154A

CN1856154A - Method for inquiring Co-shared channel capacity

Info

Publication number: CN1856154A
Application number: CNA2005100646753A
Authority: CN
Inventors: 郭俊利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2005-04-19
Filing date: 2005-04-19
Publication date: 2006-11-01
Anticipated expiration: 2025-04-19
Also published as: CN100446619C

Abstract

The invention is concerned with a sharing channel capacity request method, it includes: estimates itself whether or not be the CELL_DCH state when the UE monitor sends the sharing channel capacity request to the NodeB, uses the DCCH loads the sharing channel capacity request and sends the sharing channel capacity request information by the special-propose DPCH if it is. When the UE is at the CELL_FACH state, loads the sharing channel capacity request by the SHCCH or the DCCH, and sends the sharing channel capacity request by PUSCH or PRACH. The invention can overcome the bug that sending the sharing channel capacity request needs to process frequency-point switch when the existing technology is at the CELL_DCH state, increases the flexibility of selecting channel when the UE sends the sharing channel capacity request.

Description

A kind of shared channel requests for capacity method

Technical field

The present invention relates to Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technical field, be meant a kind of shared channel requests for capacity method especially.

Background technology

In the TD-SCDMA system, shared channel is the common signal channel that is used to transmit the non real-time packet data streams.Subscriber equipment (UE) is asked the ascending physical signal shared channel by sending ascending physical signal shared channel requests for capacity (PUSCHCAPACITY REQUEST) message to network side, perhaps carry the shared channel traffic measurement report that sends to network side by this message, and when UE need distribute shared channel resources to respond to network side, also can send this message to network side.

In the prior art, above-mentioned PUSCH CAPACITY REQUEST message is by up shared control channel (SHCCH) carrying, and SHCCH has two kinds of up mapping relations, i.e. Random Access Channel (RACH) and Uplink Shared Channel (USCH).That is to say, UE or use RACH, or use USCH to send above-mentioned PUSCH CAPACITY REQUEST message.And if UE is after setting up Radio Link, there is not available PUSCH, and when not having the effective configuration of current area Physical Random Access Channel (PRACH), the system information broadcast that just can only read current area obtains the configuration messages of PRACH, sends PUSCH CAPACITY REQUEST message by PRACH then after getting access to the configuration information of PRACH.Yet in the TD-SCDMA system, a sub-district may have a plurality of frequencies, and system information broadcast generally only is configured on the dominant frequency point, when at this moment if UE is in the CELL_DCH state and is operated on the auxilliary frequency, want to read the system information broadcast on the dominant frequency point, just needs switch to the dominant frequency point from the auxilliary frequency at current place continually, and then put back the auxilliary frequency of cutting to original place from dominant frequency, carry out the frequency switching so repeatedly and have increased the processing burden that is in CELL_DCH state UE undoubtedly.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of shared channel requests for capacity method, when solving the UE transmission shared channel requests for capacity that is in the CELL_DCH state in the prior art, switch the heavy problem of processing burden that causes owing to need carry out frequency.

In order to achieve the above object, the invention provides a kind of shared channel requests for capacity method, the method comprising the steps of: a, need send the shared channel capacity request messages to base station node B when user equipment (UE) monitors, and judge when self being in the CELL_DCH state, if, be mapped on the dedicated channel DCH then by Dedicated Control Channel DCCH bearing shared channel capacity request message, and with DCCH, send this shared channel capacity request messages by DPCH DPCH.

In said method, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by shared control channel SHCCH bearing shared channel capacity request message, and SHCCH is mapped on the Uplink Shared Channel USCH, send the shared channel capacity request messages by Physical Uplink Shared Channel PUSCH then; Perhaps SHCCH is mapped on the Random Access Channel RACH, sends the shared channel capacity request messages by Physical Random Access Channel PRACH.

In said method, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by SHCCH bearing shared channel capacity request message, and judge the current available PUSCH that whether has, if, then SHCCH is mapped on the USCH, and sends the shared channel capacity request messages by PUSCH; Otherwise, obtain the PRACH channel resource, then SHCCH is mapped on the RACH, and sends the shared channel capacity request messages by the PRACH that obtains.

In said method, described step a further comprises: when UE judges when self being in the CELL_FACH state, by DCCH bearing shared channel capacity request message, and DCCH is mapped on the USCH, sends the shared channel capacity request messages by PUSCH; Perhaps DCCH is mapped on the RACH, sends the shared channel capacity request messages by PRACH.

In said method, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by DCCH bearing shared channel capacity request message, and judge whether that DCCH is to the mapping relations of USCH and available PUSCH, if, then DCCH is mapped on the USCH, sends the shared channel capacity request messages by PUSCH; Otherwise, obtain the rights of using of PRACH, then DCCH is mapped on the RACH, send the shared channel capacity request messages by PRACH.

In said method, the mode of the rights of using of the described PRACH of obtaining is: UE sends ascending pilot channel UpPCH request to NodeB, and NodeB returns forward physical access channel FPACH response to UE.

In sum, the inventive method be when UE monitors need be when base station (NodeB) sends the shared channel requests for capacity, judge whether self is in the CELL_DCH state, if, then adopt Dedicated Control Channel (DCCH) bearing shared channel capacity request message, and DCCH mapped on the dedicated channel (DCH), send the shared channel capacity request messages by the DPCH (DPCH) of having distributed.When UE is not in the CELL_DCH state, and when being in the CELL_FACH state, then by SHCCH or DCCH bearing shared channel capacity request message.Thereby overcome in the prior art as UE and be in the CELL_DCH state, and when needing to send the shared channel requests for capacity, the needs that exist by SHCCH bearing shared channel capacity request message carry out the defective that frequency switches, and have alleviated the processing burden of UE, have improved transmitting efficiency.And when UE is in the CELL_FACH state, can come bearing shared channel capacity request message by SHCCH or DCCH, increased the flexibility of selective channel when UE sends the shared channel requests for capacity.

Description of drawings

Fig. 1 is the shared channel requests for capacity method flow diagram of a specific embodiment of the present invention.

Fig. 2 is the shared channel requests for capacity method flow diagram of another specific embodiment of the present invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

The core concept of the inventive method is: whether the UE monitoring needs to send the shared channel requests for capacity to base station (NodeB), if, then judge whether to be in the CELL_DCH state, if, then adopt Dedicated Control Channel (DCCH) bearing shared channel capacity request message, and send the shared channel capacity request messages by DPCH (DPCH).And when UE is in the CELL_FACH state, then can come bearing shared channel capacity request message by SHCCH or DCCH.Because when UE is in the CELL_DCH state, NodeB has distributed the proprietary DPCH of this UE for it, therefore UE can directly send the shared channel capacity request messages by this DPCH to NodeB, thereby avoided UE by SHCCH bearing shared channel capacity request message, and select to send the shared channel capacity request messages by PRACH, but there is not the PRACH configuration information, frequency switching problem when obtaining the PRACH configuration information by the monitoring system information broadcast, alleviate the processing burden of UE, improved transmitting efficiency.

Describe the inventive method in detail below by specific embodiment, the flow process of a specific embodiment method of the present invention as shown in Figure 1, present embodiment adopts when UE is in the CELL_DCH state, by DCCH bearing shared channel capacity request message, and by DPCH transmission shared channel capacity request messages; When UE is in the CELL_FACH state, then come bearing shared channel capacity request message by SHCCH, SHCCH is mapped on the USCH, send the shared channel capacity request messages by Physical Uplink Shared Channel (PUSCH), perhaps SHCCH is mapped on the RACH, by the method for Physical Random Access Channel (PRACH) transmission shared channel capacity request messages, this method specifically comprises the steps:

Whether step 101:UE monitoring needs to send the shared channel capacity request messages to NodeB, if then execution in step 102; Otherwise, continue execution in step 101.

Step 102: judge the current CELL_DCH state that whether is in, if then execution in step 103; Otherwise, execution in step 104.

Step 103: adopt DCCH bearing shared channel capacity request message, and DCCH is mapped on the dedicated channel (DCH), send this shared channel capacity request messages, process ends by DPCH.Because UE is in the CELL_DCH state, so UE has the DPCH that NodeB distributes, and therefore can directly utilize this DPCH to send the shared channel capacity request messages.

Step 104: when the UE judgement self is in the CELL_FACH state, adopts SHCCH bearing shared channel capacity request message, and detect whether available PUSCH is arranged, if then execution in step 105; Otherwise, execution in step 106.

Step 105: SHCCH is mapped on the USCH, and sends this shared channel capacity request messages, process ends by PUSCH.

Step 106: send ascending pilot channel (UpPCH) request to NodeB, obtain the rights of using of PRACH, judge whether then to receive forward physical access channel (FPACH) response that NodeB returns, if then execution in step 107; Otherwise, execution in step 108.

Step 107: SHCCH is mapped on the RACH, and sends this shared channel capacity request messages, process ends by PRACH.

Step 108: return failed message.

The flow process of another specific embodiment method of the present invention as shown in Figure 2, present embodiment adopts when UE is in the CELL_DCH state, by DCCH bearing shared channel capacity request message, and by DPCH transmission shared channel capacity request messages, and when UE is in the CELL_FACH state, by DCCH bearing shared channel capacity request message, but send the method for shared channel capacity request messages by PUSCH or PRACH, this method specifically comprises the steps:

Whether step 201:UE monitoring needs to send the shared channel requests for capacity to NodeB, if then execution in step 202; Otherwise, continue execution in step 201.

Step 202: judge the current CELL_DCH state that whether is in, if then execution in step 203; Otherwise, execution in step 204.

Step 203: adopt DCCH bearing shared channel capacity request message, and send this shared channel capacity request messages, process ends by DPCH.

Step 204: when the UE judgement self is in the CELL_FACH state, adopts DCCH bearing shared channel capacity request message, and detect whether DCCH is arranged, if then execution in step 205 to the mapping relations of USCH and available PUSCH; Otherwise, execution in step 206.

Step 205: send this shared channel capacity request messages, process ends by PUSCH.

Step 206: send the UpPCH request to NodeB, obtain the rights of using of PRACH, judge whether then to receive the FPACH response that NodeB returns, if then execution in step 207; Otherwise, execution in step 208.

Step 207: DCCH is mapped on the RACH, and sends this shared channel capacity request messages, process ends by PRACH.

Step 208: return failed message.

In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims

1, a kind of shared channel requests for capacity method is characterized in that this method comprises:

A,, user equipment (UE) need send the shared channel capacity request messages to base station node B when monitoring, and judge when self being in the CELL_DCH state, by Dedicated Control Channel DCCH bearing shared channel capacity request message, and DCCH is mapped on the dedicated channel DCH, send this shared channel capacity request messages by DPCH DPCH.

2, method according to claim 1, it is characterized in that, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by shared control channel SHCCH bearing shared channel capacity request message, and SHCCH is mapped on the Uplink Shared Channel USCH, send the shared channel capacity request messages by Physical Uplink Shared Channel PUSCH then; Perhaps SHCCH is mapped on the Random Access Channel RACH, sends the shared channel capacity request messages by Physical Random Access Channel PRACH.

3, method according to claim 1, it is characterized in that, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by SHCCH bearing shared channel capacity request message, and judge the current available PUSCH that whether has, if then SHCCH is mapped on the USCH, and sends the shared channel capacity request messages by PUSCH; Otherwise, obtain the PRACH channel resource, then SHCCH is mapped on the RACH, and sends the shared channel capacity request messages by the PRACH that obtains.

4, method according to claim 1, it is characterized in that, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by DCCH bearing shared channel capacity request message, and DCCH is mapped on the USCH, send the shared channel capacity request messages by PUSCH; Perhaps DCCH is mapped on the RACH, sends the shared channel capacity request messages by PRACH.

5, method according to claim 1, it is characterized in that, described step a further comprises: when the UE judgement self is in the CELL_FACH state, by DCCH bearing shared channel capacity request message, and judge whether that DCCH is to the mapping relations of USCH and available PUSCH, if, then DCCH is mapped on the USCH, send the shared channel capacity request messages by PUSCH; Otherwise, obtain the rights of using of PRACH, then DCCH is mapped on the RACH, send the shared channel capacity request messages by PRACH.

6, according to claim 3 or 5 described methods, it is characterized in that the mode of the rights of using of the described PRACH of obtaining is: UE sends ascending pilot channel UpPCH request to NodeB, and NodeB returns forward physical access channel FPACH response to UE.